Develop Bugs

Connection type?

Why does my connection type sometimes say UMTS?
What is that?
Sent from my T-Mobile G2

Tmobile use UMTS bands.
Sent from my T-Mobile G2 using Tapatalk

Oh ok cause sometimes in my house it switches from hspda to umts.
Sent from my T-Mobile G2

Yeah, I've connected to GPRS/EDGE/UMTS/HSDPA/HSPA+
Nothing to worry about and nothing abnormal.

Cool, thanks bro!
Btw, how's hspa+? I haven't been able to connect to it..
Sent from my T-Mobile G2

How can you tell what protocol the phone is on?
How can you tell whether the phone is using HSPA, HSPA+, GPRS etc? Can't tell from lousy signal indicator on the phone. thanks!

HSPDA and HSPA+
I have yet to see any proof of anyone being on HSPA+. I have connected to every network type except HSPA+. You can check this by going into Settings > About Phone > Status, and there you can see which network you are connected to under "Mobile Network Type". I want a screen shot of somebody who is on HSPA+, because I've never gotten above HSPDA which is supposedly "3.5G" roughly (and I'm surprised no one has addressed this in any of these threads, I'm even more surprised people don't know how to check this).
Anyways, I want to see a G2 or a MT4G that is connected to HSPA+. I live in NYC and Washington, DC and I have never connected to it.
My G2 is still quite fast so I'm not complaining, I just want proof.

garyham said:
How can you tell whether the phone is using HSPA, HSPA+, GPRS etc? Can't tell from lousy signal indicator on the phone. thanks!
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Read my post.

Has anyone seen a "3" (for 3G?) TMo tech support told me that is what will show up in a 3G area. I have only seen H or E...

Jorsher said:
Yeah, I've connected to GPRS/EDGE/UMTS/HSDPA/HSPA+
Nothing to worry about and nothing abnormal.
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Can you post a screen shot of your connection to HSPA+? It's not that I don't believe you specifically, I just want to see it with my own eyes. Settings>About Phone>Status>Mobile Network Type
Pleae post a screen shot when you're connected to HSPA+, not just HSPDA. My understanding is that the G2's cannot connect to HSPA+, only HSPDA. It doesn't change the fact that T-Mobile is building an HSPA+ network, we just can't conenct to it with the radios in our G2's. So yea, prove it please.

Three network - 2G/3G

I went into Three shop on Oxford street today and aksed about returned defective handsets, but she didn`t know what I`m talking about. After I explained, she said they don`t use 2G for voice any more, its all 3G now, hence no returned phones with volume bug. "All 2G masts have been replaced with 3G ones, very very few 2G left".
I thought 3G was only for data? Or it can also transmit voice? Some time ago I remember they used o2 for their voice calls?
I`m currently on Vodafone and their coverage is so crap. Try getting signal(iPhone 4) indoors with thick walls or with steel constructions - good luck. Not even talking getting 3G for data. But my Three USB broadband dongle just flies, no difference indoors/outdoors whatsoever. Very impressive.
So, would this mean that if I switch to Three, my voice coverage would also be much better not just 3G?

I'm with 3 uk, good coverage and signal most places. I was told that 3 doesn't use the 900Mhz band so I can only assume it uses 3g for voice as well.
I've also had the GNexus for a week and not noticed the volume bug at all.

2G can be either voice or Data. You get crappy speeds compared to 3G, and the trade off is you can only have one running at the given time, meaning you can't browse the web while in a call.
3G is the next step after 2G, and allows for both voice and data(at least on a GSM carrier), and offers a lot better speeds than 2G.
To answer your last question, it really depends on the coverage you have in the area, so I cannot answer it; you just have to try it out yourself.

I am on three network, I am pretty sure they using "3g" (probably why its called three?), and don't actually has any 2g network/mast anymore. In fact, when you request for a sim card from three, it says you must have a 3g type of phone.
Where you get areas that doesn't have 3g, it will fall back to 2g but will be using someone elses network to provide (last I had heard was orange network). Not sure if that is true anymore as that news I had heard is a few years old.

They used to have a deal with orange to carry 2G, and it still works in a few places, although officially they'll tell you that's all done with. Three have been aggressively rolling out their network to replace all that (which is why you can get 3g signal in fields in the middle of nowhere).

Three only has 3g masts which means you get 3g signal pretty much everywhere. If you go somewhere with a poor or non existent 3g signal the phone will roam on to Orange 2g. Three used to have a roaming agreement with Orange for the entire uk however, recently they have started to end this agreement with Orange in areas where they know the 3g network is strong enough.
I'm with three and if you're on the three 3g network it will show 3 as the operator when you pull down the notification bar. If you roam on to Orange 2g it shows 3 with another 3 directly underneath it. On a side note I actually left orange for three due to signal issues, oh how the tides have changed since three first started out with 3g .
Oh and Three use 2100mhz for their 3g network and Orange use 1800mhz for their 2g which is why customers on Three or Orange never have the volume issue which affects people on o2 and Vodafone(both mainly use the 900mhz frequencies).
Rik.
Sent from my Galaxy Nexus using Tapatalk

DDRFAN said:
2G can be either voice or Data. You get crappy speeds compared to 3G, and the trade off is you can only have one running at the given time, meaning you can't browse the web while in a call.
3G is the next step after 2G, and allows for both voice and data(at least on a GSM carrier), and offers a lot better speeds than 2G.
To answer your last question, it really depends on the coverage you have in the area, so I cannot answer it; you just have to try it out yourself.
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Simultaneously? Can I surf web and at least receive phone call & sms? Or if somebody calls me it will go to voicemail?

aindow said:
Three only has 3g masts which means you get 3g signal pretty much everywhere. If you go somewhere with a poor or non existent 3g signal the phone will roam on to Orange 2g. Three used to have a roaming agreement with Orange for the entire uk however, recently they have started to end this agreement with Orange in areas where they know the 3g network is strong enough.
I'm with three and if you're on the three 3g network it will show 3 as the operator when you pull down the notification bar. If you roam on to Orange 2g it shows 3 with another 3 directly underneath it. On a side note I actually left orange for three due to signal issues, oh how the tides have changed since three first started out with 3g .
Oh and Three use 2100mhz for their 3g network and Orange use 1800mhz for their 2g which is why customers on Three or Orange never have the volume issue which affects people on o2 and Vodafone(both mainly use the 900mhz frequencies).
Rik.
Sent from my Galaxy Nexus using Tapatalk
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i'm confused.. does this mean three does not also get hsdpa? or hspa+? i get that signal on my orange desire hd - as the galaxy nexus is hspa+ device its now got me puzzled.. hmmm..

Three will not let you use 2g signal. They lock all their phones up so it's not possible. That's how they claim to have the fastest network in the uk. If your our of a 3G signal area, you have no signal.

GR36 said:
Three will not let you use 2g signal. They lock all their phones up so it's not possible. That's how they claim to have the fastest network in the uk. If your our of a 3G signal area, you have no signal.
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Are you sure?! That sounds very unrealistic.

MrYuzhai said:
i'm confused.. does this mean three does not also get hsdpa? or hspa+? i get that signal on my orange desire hd - as the galaxy nexus is hspa+ device its now got me puzzled.. hmmm..
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Click to collapse
Three has HSDPA/+ because I have their mobile broadband USB dongle.

GR36 said:
Three will not let you use 2g signal. They lock all their phones up so it's not possible. That's how they claim to have the fastest network in the uk. If your our of a 3G signal area, you have no signal.
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That is rubbish IMO. Three use orange 2g as already said if there isn't 3g network. I work in the middle of nowhere and get excellent 3g signal from three. I have tried all operators before three and it has the best coverage and speed that I have found. Its like having 3 meg broadband.
Sent from my Galaxy Nexus using XDA App

I've used a 2G signal recently on 3 so can't agree with that either.
What I heard though is the 2G will be restricted to voice only? Not sure how true that is.
Sent from my Galaxy Nexus using xda premium

rbs_uk said:
Simultaneously? Can I surf web and at least receive phone call & sms? Or if somebody calls me it will go to voicemail?
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yes, on 3G or HSPA you can be online and receive calls and texts simultaneously.
with 2G you can only receive texts whilst in a call.
rbs_uk said:
GR36 said:
Three will not let you use 2g signal. They lock all their phones up so it's not possible. That's how they claim to have the fastest network in the uk. If your our of a 3G signal area, you have no signal.
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Are you sure?! That sounds very unrealistic.
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it's not unrealistic, it's true
chrishiggins said:
That is rubbish IMO. Three use orange 2g as already said if there isn't 3g network.
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According to this article dated more than a year ago, you are wrong.

oscillik, once again you're the one that's wrong. Three do still allow you to roam onto oranges 2g network in areas with no 3g signal. I know this is true as I still occasionally do it.
Did you even bother reading the Reg article you posted. Try reading the very first paragraph "3 has started to switch off roaming onto Orange's 2G network in locations where it reckons its own coverage makes the 2G partner redundant."
If that looks familiar, it should as it's almost exactly what chrishiggins said.
You must be getting used to being wrong by now...

erbain said:
oscillik, once again you're the one that's wrong. Three do still allow you to roam onto oranges 2g network in areas with no 3g signal. I know this is true as I still occasionally do it.
Did you even bother reading the Reg article you posted. Try reading the very first paragraph "3 has started to switch off roaming onto Orange's 2G network in locations where it reckons its own coverage makes the 2G partner redundant."
If that looks familiar, it should as it's almost exactly what chrishiggins said.
You must be getting used to being wrong by now...
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Actually you are wrong. Here is what chrishiggins said, with the pertinent details bolded for you
chrishiggins said:
That is rubbish IMO. Three use orange 2g as already said if there isn't 3g network. I work in the middle of nowhere and get excellent 3g signal from three. I have tried all operators before three and it has the best coverage and speed that I have found. Its like having 3 meg broadband.
Sent from my Galaxy Nexus using XDA App
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Now, as you can see, he quite clearly states that even in the middle of nowhere, he gets excellent 3G signal. Nowhere in his post does he make any allusions to anything that the Register article mentions.
Also, yes I did read the article, particularly the part that states that the article is a year old.
Since you seem to be so keen on facts, please, find every single instance of where I have been wrong and haven't admitted to being so, and post the evidence for all to see, collated into one area.
Take your time.

Wow, what have you been smoking? I know what he said, you have quoted it several times.
Let's try this one more time :
"Three use orange 2g as already said if there isn't 3g network" This is what you originally quoted and stated was wrong, it is in fact true and is exactly what the Reg article says. You used to be able to use orange 2g anywhere in the UK but now you can only use it where there no good 3g signal.
"I work in the middle of nowhere and get excellent 3g signal from three" So he has a good 3g signal at his work, what's this got to do with being able to roam onto 2g in bad 3g areas?
oscillik said:
Since you seem to be so keen on facts, please, find every single instance of where I have been wrong and haven't admitted to being so, and post the evidence for all to see, collated into one area.
Take your time.
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Click to collapse
I think I'll pass, but If I'm reading a thread where you're spewing ****e and generally being rude I'll make a point of replying.

erbain said:
Wow, what have you been smoking? I know what he said, you have quoted it several times.
Let's try this one more time :
"Three use orange 2g as already said if there isn't 3g network" This is what you originally quoted and stated was wrong, it is in fact true and is exactly what the Reg article says. You used to be able to use orange 2g anywhere in the UK but now you can only use it where there no good 3g signal.
"I work in the middle of nowhere and get excellent 3g signal from three" So he has a good 3g signal at his work, what's this got to do with being able to roam onto 2g in bad 3g areas?
I think I'll pass, but If I'm reading a thread where you're spewing ****e and generally being rude I'll make a point of replying.
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Click to collapse
I apologise for being wrong with regard to your first point. As you have correctly made me out to be a fool here, chrishiggins does say that. Although it is still yet to be ascertained whether 3-UK still have any existing 2G roaming agreement with Orange, and if so, what areas this covers. I'm sure you can agree with me that 3-UK should really be a bit more transparent about which areas are able to receive 2G roaming. This would be beneficial for all existing and prospective customers.
The second point has a lot to do with being able to roam onto 2G in bad 3G areas, since in the majority of cases, 'middle-of-nowhere' places tend to not have 3G coverage. Now I know that is a very vague definition, but it is one that I'm sure you have experienced yourself. I would be very surprised if you had kept 3G reception whilst being in a place that most would regard as being in the middle of nowhere.
As for your closing point, I respect your tenacity. After the conversation we've had, you've successfully proven me wrong regarding something I have said, made me out to be a fool, and furthered the exploration of fact. You weren't trolling, you actually had a beef with what I had said. All in all, you've come out on top here, I've been given a swift clip round the ear, and other readers should hopefully be more informed. Can we at least agree that this is a positive outcome?

oscillik said:
I apologise for being wrong with regard to your first point. As you have correctly made me out to be a fool here, chrishiggins does say that. Although it is still yet to be ascertained whether 3-UK still have any existing 2G roaming agreement with Orange, and if so, what areas this covers. I'm sure you can agree with me that 3-UK should really be a bit more transparent about which areas are able to receive 2G roaming. This would be beneficial for all existing and prospective customers.
The second point has a lot to do with being able to roam onto 2G in bad 3G areas, since in the majority of cases, 'middle-of-nowhere' places tend to not have 3G coverage. Now I know that is a very vague definition, but it is one that I'm sure you have experienced yourself. I would be very surprised if you had kept 3G reception whilst being in a place that most would regard as being in the middle of nowhere.
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It would be nice if 3 were a bit more transparent about where 2g was still available, unfortunately I don't see that ever happening.
Personally I've had a fairly good experience with 3 over the last 5 months, I get a good 3g signal at home and at work and find it generally OK. I was down in Cornwall a couple months ago staying in a hotel that could have been described as the middle of nowhere, I had no 3g signal but I was still able to roam onto 2g, so I know it still works in some places.
3 do seem to have improved there network since I last used them a few years ago. As a bonus, I think my GN is able to pick up a weaker 3g signal than my N1 was, maybe the hspa+ radio helps.
oscillik said:
As for your closing point, I respect your tenacity. After the conversation we've had, you've successfully proven me wrong regarding something I have said, made me out to be a fool, and furthered the exploration of fact. You weren't trolling, you actually had a beef with what I had said. All in all, you've come out on top here, I've been given a swift clip round the ear, and other readers should hopefully be more informed. Can we at least agree that this is a positive outcome?
Click to expand...
Click to collapse
I try to never troll, If I'm arguing a point it's because I believe what I'm saying is correct. Anyway I'm glad in this instance we're able to agree

rbs_uk said:
Are you sure?! That sounds very unrealistic.
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Indeed, I'm calling BS here, I've been talking to them recently, they were telling me they don't run 2G themselves. If there really is no 3G coverage, they have a fallback in place that runs off the back of Orange.
They are slowing turning off 2G fallback in places where they consider their 3G coverage to be more than adequate.
cow.neondragon.net/index.php/three-begins-2g-coverage-switch-off-have-you-been-affected-your-rights

Is it possible Turn off 4G and use 3G?

I think the biggest battery drain for the phone is the 4G radio. Is it possible turns it off and use 3G?

you can't. you either have data on or data off. What drains the battery more is having your phone switch between edge/3g/H/H+ automatically.

Our phones are not like an lte phone. Our 4g is really just souped up 3g so you either get edge our 4g.
Sent from my SGH-T989 using xda premium

jessejames111981 said:
you can't. you either have data on or data off. What drains the battery more is having your phone switch between edge/3g/H/H+ automatically.
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When your phone is switching from 3G to H (which you don't see anymore, all you see now is E or 4G) your not switching technologies. Back when you saw 3G vs H it just ment your phone was idle and not transferring data. When H came on, you were doing data.
There is also no difference in switching from HSPA to HSPA+. It is the same data, just one is a little faster.
Now, before T-Mobile launched HSPA, yes, there was Rev99 data which was slow like Edge and your phone only displayed 3G. But that has been gone for a long time.
As far as switching from GSM to UMTS (Edge data to HSPA data) yes, that will cause battery drain if it is continuous. This is because the phone is trying to reestablish a data connection.
In summary, you no longer see 3G on your phone, only 4G which replaces the 3G/H icons. When you are connected to 3G you are NOT switching technologies when you use HSPA data, your just activating data thus you are NOT draining more than normal amounts of battery. When you switch from 2G to 3G you ARE switching technologies so if your continuously bouncing from 2G to 3G that can cause increase in battery drain.
---------- Post added at 07:04 PM ---------- Previous post was at 07:02 PM ----------
thecalip said:
I think the biggest battery drain for the phone is the 4G radio. Is it possible turns it off and use 3G?
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Click to collapse
No, everyone is VERY confused with this. They are the same radio. HSPA+ is the data side of 3G. T-Mobile is just calling it 4G because Sprint got away with hit with their WiMax. EVER cell site on T-Mobile's network has HSPA activated. This means there is no longer 3G data.
---------- Post added at 07:11 PM ---------- Previous post was at 07:04 PM ----------
xsteven77x said:
Our phones are not like an lte phone. Our 4g is really just souped up 3g so you either get edge our 4g.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Again, people do not know true definitions.
HSPA - 3.5G
WiMax - 3.5G
LTE - 3.5G
Ture 4G technologies are:
WiMax 2 and LTE Advanced.
NO CARRIER IN THIS NATION HAS EITHER OF THOSE TECHNOLOGIES ACTIVATED!!!
Sprint turned on WiMax (not 2nd generation) and called it 4G. So why not follow suit do the same thing. It's all marketing.

thecalip said:
I think the biggest battery drain for the phone is the 4G radio. Is it possible turns it off and use 3G?
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Click to collapse
well, the drain is likely due to dual cell usage. You can disable dual cell which will knock your top speed down to 21 (theoretical) Mbps. So get to service mode select Debug Screen - > Phone Control -> NAS Control -> RRC(HSPA) Control -> Change RRC Revision ->
DL speeds for items listed are as follows:
R99 = 384kbps
Rel 5 = 7.2
Rel 6 = 14.4
Rel 7 = 21
Rel 8 = 42
hope this helps

Couldn't you force your phone on the 850 UMTS frequency? I say this because I thought HSPA /+ran on the 1700 and 2100 bands so theoretically you could actually be on 3G. I know jugs rom allows you to switch the data icons displayed to 3G for UMTS and H/4G for HSPA /+

iLeopard said:
Couldn't you force your phone on the 850 UMTS frequency? I say this because I thought HSPA /+ran on the 1700 and 2100 bands so theoretically you could actually be on 3G. I know jugs rom allows you to switch the data icons displayed to 3G for UMTS and H/4G for HSPA /+
Click to expand...
Click to collapse
T-Mobile doesn't use/have 850 range.
Let me see if I can explain this a little better. T-mobile launched their 3G network on a UMTS platform utilizing WCDMA technology. It's like Verizon and Sprints CDMA but with the W which stands for Wideband. CDMA stands for Code Devision Multiple Access. Wideband is what allows T-Mobile to have such high data rates. Standard CDMA has a 2.5MHz bandwidth while WCDMA has a 5MHz bandwidth for each carrier they are utilizing. Currently, most (not all) major cities have dual carrier launched so those sites are actually using 10MHz of bandwidth. This allows for 42Mbps speeds. 21 for each carrier. We are actually starting to deploy 3rd carrier which will allow 1 carrier just for voice so the full 42Mbps is use solely for data. 84 is a COMPLETELY different story and I will not bother with that for now.
Moving on. When T-Mobile built their network they built it with HSPA in mind. You see, HSPA and HSPA+ are add on data technologies that work on a WCDMA network. They are NOT a separate signal to your phone. Following? Hope so! So, with that said, when your device is connected to a 3G cell site, the data available is HSPA+ and the voice is over what you are calling 3G. They are, in fact, the same signal.
HSPA/HSPA+ data is on the same signal as your 3G voice. You are NOT receiving 2 signals. You CANNOT separate them.
Now, on to frequencies. There are 2 modes that you can run WCDMA in, full duplex and half duplex. T-Mobile decided to go with full duplex. I'm assuming (low man on the totem pole here so don't know for sure) this was to have greater data rates. This is why T-Mobile uses 2 frequencies. 1 in 1700 band for transmit, 1 in 2100 band for receive. This is also where T-Mobile differentiates from ATT (and exceeds! ) because ATT went with half duplex and only uses 1 frequency. So, T-Mobile phones have the ability to transmit and receive at the same time while ATT phones do not.
With all of that said, and hopefully understood, you should now know that it DOES NOT MATTER WHAT THE FRIG ICON YOUR PHONE SHOWS!!!!. Sorry, been trying to get that point across. The firggin icon doesn't not mean ****. The fact that you can have a 3G icon and a separate H does not mean ****. If you do have separate 3G and H icons like older T-Mobile phones and you can see it switching that is because while your phone is idle (NO DATA) it will display 3G. While your phone is doing data (ON THE SAME CONNECTION) it will display H. It is a simple indicator to let you know you are using HSPA data.
T-Mobile did away with both icons and replaced them with the 4G icon when they went to the 4G ad campaign. Get it, got it, good!
---------- Post added at 09:49 AM ---------- Previous post was at 09:40 AM ----------
AUTX_buckeye said:
well, the drain is likely due to dual cell usage. You can disable dual cell which will knock your top speed down to 21 (theoretical) Mbps. So get to service mode select Debug Screen - > Phone Control -> NAS Control -> RRC(HSPA) Control -> Change RRC Revision ->
DL speeds for items listed are as follows:
R99 = 384kbps
Rel 5 = 7.2
Rel 6 = 14.4
Rel 7 = 21
Rel 8 = 42
hope this helps
Click to expand...
Click to collapse
I don't think your actually disabling the 2nd carrier. I think your just limiting the max data rate your phone will do. As I previously stated, the phone will connect to what the cell site has. You will always be connected to a 10MHz bandwidth if the site is a dual carrier site.

setzer715 said:
T-Mobile doesn't use/have 850 range.
Let me see if I can explain this a little better. T-mobile launched their 3G network on a UMTS platform utilizing WCDMA technology. It's like Verizon and Sprints CDMA but with the W which stands for Wideband. CDMA stands for Code Devision Multiple Access. Wideband is what allows T-Mobile to have such high data rates. Standard CDMA has a 2.5MHz bandwidth while WCDMA has a 5MHz bandwidth for each carrier they are utilizing. Currently, most (not all) major cities have dual carrier launched so those sites are actually using 10MHz of bandwidth. This allows for 42Mbps speeds. 21 for each carrier. We are actually starting to deploy 3rd carrier which will allow 1 carrier just for voice so the full 42Mbps is use solely for data. 84 is a COMPLETELY different story and I will not bother with that for now.
Moving on. When T-Mobile built their network they built it with HSPA in mind. You see, HSPA and HSPA+ are add on data technologies that work on a WCDMA network. They are NOT a separate signal to your phone. Following? Hope so! So, with that said, when your device is connected to a 3G cell site, the data available is HSPA+ and the voice is over what you are calling 3G. They are, in fact, the same signal.
HSPA/HSPA+ data is on the same signal as your 3G voice. You are NOT receiving 2 signals. You CANNOT separate them.
Now, on to frequencies. There are 2 modes that you can run WCDMA in, full duplex and half duplex. T-Mobile decided to go with full duplex. I'm assuming (low man on the totem pole here so don't know for sure) this was to have greater data rates. This is why T-Mobile uses 2 frequencies. 1 in 1700 band for transmit, 1 in 2100 band for receive. This is also where T-Mobile differentiates from ATT (and exceeds! ) because ATT went with half duplex and only uses 1 frequency. So, T-Mobile phones have the ability to transmit and receive at the same time while ATT phones do not.
With all of that said, and hopefully understood, you should now know that it DOES NOT MATTER WHAT THE FRIG ICON YOUR PHONE SHOWS!!!!. Sorry, been trying to get that point across. The firggin icon doesn't not mean ****. The fact that you can have a 3G icon and a separate H does not mean ****. If you do have separate 3G and H icons like older T-Mobile phones and you can see it switching that is because while your phone is idle (NO DATA) it will display 3G. While your phone is doing data (ON THE SAME CONNECTION) it will display H. It is a simple indicator to let you know you are using HSPA data.
T-Mobile did away with both icons and replaced them with the 4G icon when they went to the 4G ad campaign. Get it, got it, good!
---------- Post added at 09:49 AM ---------- Previous post was at 09:40 AM ----------
I don't think your actually disabling the 2nd carrier. I think your just limiting the max data rate your phone will do. As I previously stated, the phone will connect to what the cell site has. You will always be connected to a 10MHz bandwidth if the site is a dual carrier site.
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Couple things.
1.
You will always be connected to a 10MHz bandwidth if the site is a dual carrier site.
Click to expand...
Click to collapse
- this statement is false. Your phone is only connected to one carrier at a time in idle mode which means only 5 Mhz
2.
Standard CDMA has a 2.5MHz bandwidth
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Click to collapse
- wrong again CDMA is only 1.25 MHz
3.
ATT went with half duplex
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- wrong again please lookup FDD (Frequency division duplex) vs TDD (Time division duplex).
if you work for T-Mo and I really hope your not in the engineering department, because most of your technical information you present is incorrect

thecalip said:
I think the biggest battery drain for the phone is the 4G radio. Is it possible turns it off and use 3G?
Click to expand...
Click to collapse
the 4G and 3G radio uses the same circuit
so if you disable 4G you will also need to disable 3G
so technically yes you can disable 3G and work 2G on to receive push data

AUTX_buckeye said:
Couple things.
1. - this statement is false. Your phone is only connected to one carrier at a time in idle mode which means only 5 Mhz
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Click to collapse
Yes, in idle, but we're talking about limiting data here, not idle states. So therefore, if you are connected to a dual carrier site and in a data session you will be utilizing both carriers regardless of your data rate.
2. - wrong again CDMA is only 1.25 MHz
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Yep, my mistake, typo.
3. - wrong again please lookup FDD (Frequency division duplex) vs TDD (Time division duplex).
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Was trying to give a simplistic explanation. I guess next time I will just link wikipedia.
The whole point of the discussion was that you cannot turn off the HSPA on your phone and use just 3G. I have not messed with the settings you are suggesting and I don't know that I would as inexperienced users can mess their phones up in those menus. I suppose you could force your phone to R99 mode and that might work but forcing to 21Mbps only I still think you will be using both carriers when using data. Will do testing and report back.

setzer715 said:
Yes, in idle, but we're talking about limiting data here, not idle states. So therefore, if you are connected to a dual carrier site and in a data session you will be utilizing both carriers regardless of your data rate.
Yep, my mistake, typo.
Was trying to give a simplistic explanation. I guess next time I will just link wikipedia.
The whole point of the discussion was that you cannot turn off the HSPA on your phone and use just 3G. I have not messed with the settings you are suggesting and I don't know that I would as inexperienced users can mess their phones up in those menus. I suppose you could force your phone to R99 mode and that might work but forcing to 21Mbps only I still think you will be using both carriers when using data. Will do testing and report back.
Click to expand...
Click to collapse
NP. shouldn't have fired back that hard. Technically you only get DC if their is enough capacity on the site so its not a given. You & Allgamer are correct there is no "4G" radio its all one radio on the chip, however changing that setting actually should affect the software which i'll give a brief primer on.
R99 = 1 code with a spreading factor of 16 (surprisingly probably the least power efficient of the group)
HSDPA (7.2) = 10 codes with spreading factor of 16 (in our case likely the most efficient power wise)
HSPA (14.4) = 15 codes with spreading factor of 16
HSPA+ (21) = 15 codes with spreading factor of 16 & 64QAM
HSPA+ (42) = HSPA+(21) * 2.
so with the phone not having to decode 64QAM + using less codes the CPU shouldn't have to ramp up as much to process the data.

AUTX_buckeye said:
so with the phone not having to decode 64QAM + using less codes the CPU shouldn't have to ramp up as much to process the data.
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Click to collapse
I totally agree with this. I'm still not convinced, though, that switching form single to dual carrier is doing much as far as battery drainage. It's not like switching modes between GSM and UMTS or LTE and CDMA (Verizon/ATT world) and trying to reestablish on the network. I mean I guess it could cause a little but something is my brain is just saying that the switching isn't doing that much. Now doubling the bandwidth and data rate, yeah, that is definitely increasing battery usage but the switching itself I just don't know.
Honestly I get mixed battery life depending on my daily usage so testing would be hard. That is unless it's huge differences. I set my phone to Revision 8 and see it its huge improvements.
On a side note, and could just be that phone, but 2 of my friends have Thunderbolts and they get like 2-4 hours of battery life. Something WILL have to be done to fix battery life on LTE.

Well, as somebody said i tried the service mode and got too excited and ****up alot of stuff, wiped and installed jug again but looks like the settings got saved . Anyway to reset all the settings there?

Husam2011 said:
Well, as somebody said i tried the service mode and got too excited and ****up alot of stuff, wiped and installed jug again but looks like the settings got saved . Anyway to reset all the settings there?
Click to expand...
Click to collapse
Exactly what settings did you touch and what is currently NOT working.
No, no master reset that I know of.

setzer715 said:
Exactly what settings did you touch and what is currently NOT working.
No, no master reset that I know of.
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Basically i touched alot of stuff. Wow i ****ed up!!!! no signal and nothing is showing, no dbm or carrier but when i go to settings/networks it shows up att and tmobile in carriers
It also says RRC: IDLE, BAND 5 in basic info
I messed up with Fake Security something, Antenna/adc, network control
Edit: Putting the sim that came with the phone in, it connected and showed dbm but then after 1min it just had an x on the network bars.

Husam2011 said:
Basically i touched alot of stuff. Wow i ****ed up!!!! no signal and nothing is showing, no dbm or carrier but when i go to settings/networks it shows up att and tmobile in carriers
It also says RRC: IDLE, BAND 5 in basic info
I messed up with Fake Security something, Antenna/adc, network control
Edit: Putting the sim that came with the phone in, it connected and showed dbm but then after 1min it just had an x on the network bars.
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Click to collapse
I feel like mine said band 4 earlier today but I cant be for sure. I don't have 3G at my house so I can't test till tomorrow.
You could always try reflashing the phone with odin and stock to see if that fixes those defaults but I'm not sure where they are written. Definitely not in the ROM. Maybe the bootloader or radio image have this information stored so flashing stock oden .tar may fix it? Sorry, I really don't know and this is EXACTLY why I said people shouldn't be messing with these settings.

setzer715 said:
I feel like mine said band 4 earlier today but I cant be for sure. I don't have 3G at my house so I can't test till tomorrow.
You could always try reflashing the phone with odin and stock to see if that fixes those defaults but I'm not sure where they are written. Definitely not in the ROM. Maybe the bootloader or radio image have this information stored so flashing stock oden .tar may fix it? Sorry, I really don't know and this is EXACTLY why I said people shouldn't be messing with these settings.
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Click to collapse
Flashing to stock seems to fix it, not flashing modem. Thank god it worked! thanks

setzer715 said:
I feel like mine said band 4 earlier today but I cant be for sure. I don't have 3G at my house so I can't test till tomorrow.
You could always try reflashing the phone with odin and stock to see if that fixes those defaults but I'm not sure where they are written. Definitely not in the ROM. Maybe the bootloader or radio image have this information stored so flashing stock oden .tar may fix it? Sorry, I really don't know and this is EXACTLY why I said people shouldn't be messing with these settings.
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Click to collapse
well... i guess in this case too much info is a bad thing. My suggestion was to TOUCH ONLY the RRC settings ... anything else is a crapshoot
yes T-MOs 3G/4G is "UMTS Band IV"
and for future note... if you don't know what your doing and your screwing around in service mode... take SCREENSHOTS before you mess with anything. Or have a buddy with a phone that is untouched.

AUTX_buckeye said:
well... i guess in this case too much info is a bad thing. My suggestion was to TOUCH ONLY the RRC settings ... anything else is a crapshoot
yes T-MOs 3G/4G is "UMTS Band IV"
and for future note... if you don't know what your doing and your screwing around in service mode... take SCREENSHOTS before you mess with anything. Or have a buddy with a phone that is untouched.
Click to expand...
Click to collapse
Reverting the setting back doesn't/didn't do anything for me. I had to flash stock odin rom+recovery

I know someone said previously that the "4G" icons don't mean much as it will usually show "E" or "4G". However, my phone showed "3G" the other day while I was at home and I only saw this once. Someone on another board said that means it was picking up 1900mhz WCDMA as supposedly T-Mobile is starting to use HSPA on 1900mhz in certain areas. Is that correct?

GSM on DINC2 will not work without "2G only checked"

Hello everyone,
I have been stuck with this problem for days now with no more thoughts on how to fix it:
I have an unlocked, rooted DINC2 that I am trying to use with T-Mobile prepaid. I am currently running {10-25-2012}{Rom}{ICS} Official Global CM9 from Psycho R' Us. I can send/receive phone calls fine, however unless "2G only" is checked in the settings (EDGE), I can't get data working at all and it just shows all the bars grey. I believe my APN settings are correct... if anyone has any suggestions on how to fix this please let me know .
Thanks!

mastermind85 said:
Hello everyone,
I have been stuck with this problem for days now with no more thoughts on how to fix it:
I have an unlocked, rooted DINC2 that I am trying to use with T-Mobile prepaid. I am currently running {10-25-2012}{Rom}{ICS} Official Global CM9 from Psycho R' Us. I can send/receive phone calls fine, however unless "2G only" is checked in the settings (EDGE), I can't get data working at all and it just shows all the bars grey. I believe my APN settings are correct... if anyone has any suggestions on how to fix this please let me know .
Thanks!
Click to expand...
Click to collapse
Okay... weird now it works on EDGE:2, but it should be on HSPA+ since its been reported to be active in the NoVA area near me. Is there a way to get it on that network?
Thanks again!

mastermind85 said:
Okay... weird now it works on EDGE:2, but it should be on HSPA+ since its been reported to be active in the NoVA area near me. Is there a way to get it on that network?
Thanks again!
Click to expand...
Click to collapse
This phone doesn't support all gsm bands, so I doubt it will hit HSPA+. I don't know for sure, but you'd have to research what bands the phone supports vs. what bands T-mobile uses.

gtdtm said:
This phone doesn't support all gsm bands, so I doubt it will hit HSPA+. I don't know for sure, but you'd have to research what bands the phone supports vs. what bands T-mobile uses.
Click to expand...
Click to collapse
T-Mobile uses Frequency 1900 for their new HSPA+ service, and the Droid Incredible 2 supports GSM frequency 1900, so shouldn't it work?

mastermind85 said:
T-Mobile uses Frequency 1900 for their new HSPA+ service, and the Droid Incredible 2 supports GSM frequency 1900, so shouldn't it work?
Click to expand...
Click to collapse
Anyone have any other suggestions? :\

mastermind85 said:
T-Mobile uses Frequency 1900 for their new HSPA+ service, and the Droid Incredible 2 supports GSM frequency 1900, so shouldn't it work?
Click to expand...
Click to collapse
That's what I thought when I let a buddy use his Dinc2 to pay down some cash he owed me (his sociopath 20-something kid snaked two $100-bills outta my wallet...sigh)...but I seem to remember reading a thread that it won't work.
I honestly haven't spent much time on this after my initial searches since my main use is as a GPS logger, mp3 and audible player though I am prolly going to grab a ST or or GSM card to reduce device clutter...so while I haven't anything useful to contrib here I will follow and post any relevent links I stumble across tonight (working midnight shift so not a ton to do other than not fall asleep.

brecklundin said:
That's what I thought when I let a buddy use his Dinc2 to pay down some cash he owed me (his sociopath 20-something kid snaked two $100-bills outta my wallet...sigh)...but I seem to remember reading a thread that it won't work.
I honestly haven't spent much time on this after my initial searches since my main use is as a GPS logger, mp3 and audible player though I am prolly going to grab a ST or or GSM card to reduce device clutter...so while I haven't anything useful to contrib here I will follow and post any relevent links I stumble across tonight (working midnight shift so not a ton to do other than not fall asleep.
Click to expand...
Click to collapse
Thanks! find anything? I still cant figure this thing out...

I have the LG G2 Sprint variant! :D

Hey Guys,
Just got mine in the mail today (how is a secret ;D) So if anyone has any questions let me know. Not that its going to be all that different than the other versions lol. So yeah, WOOO! I love this thing :]

HaiKaiDo said:
Hey Guys,
Just got mine in the mail today (how is a secret ;D) So if anyone has any questions let me know. Not that its going to be all that different than the other versions lol. So yeah, WOOO! I love this thing :]
Click to expand...
Click to collapse
If you can get your MSL, try to enable the LTE Bands 26 and 41 in the ##DATA# dialer code and see if you are able to connect to the Band 26 and 41 LTE.

ericdabbs said:
If you can get your MSL, try to enable the LTE Bands 26 and 41 in the ##DATA# dialer code and see if you are able to connect to the Band 26 and 41 LTE.
Click to expand...
Click to collapse
Just got the MSL and enabled both. Its rebooting. What if anything should I notice?
Okay so when i enabled them both I noticed no difference, HOWEVER there are two other values in there for priority of each band. I set them all from 1 to 0. Now LTE is staying connected even tho it goes from 1 to 0 bars. Even with zero bars im getting 3 megs down and 1 up compared to 3g .5 megs and .1 up. So appearently this seems to be a way to force LTE on as I still havnt switched over to 3g

HaiKaiDo said:
Just got the MSL and enabled both. Its rebooting. What if anything should I notice?
Click to expand...
Click to collapse
0o0o00o....I have so many questions. Ok which market do you live in? Like which city? I want to see if you have any LTE 2600 (B41) in your area and if you do I would like to see if you can connect to a LTE 2600 tower. I am trying to confirm if LTE 2600 (B41) is truly working when you manually enable it through MSL. Also can you change your Band Priority to have B41 set to "1" to have it enabled and set B25 to "0" so it is set to lower priority.
The concern is that since as you know when you activated it with Sprint, the B26 and B41 LTE bands were disabled by default. Normally folks don't know how to enable this and the question is WHY!!!

ericdabbs said:
0o0o00o....I have so many questions. Ok which market do you live in? Like which city? I want to see if you have any LTE 2600 (B41) in your area and if you do I would like to see if you can connect to a LTE 2600 tower. I am trying to confirm if LTE 2600 (B41) is truly working when you manually enable it through MSL. Also can you change your Band Priority to have B41 set to "1" to have it enabled.
The concern is that since as you know when you activated it with Sprint, the B26 and B41 LTE bands were disabled by default. Normally folks don't know how to enable this and the question is WHY!!! So
Click to expand...
Click to collapse
outside of the Atlanta Ga market. The weird thing is that when everything was set to 1 I never could connect to lte. When i set them all to 0 with all bands enabled I get a slight LTE signal. So maybe its like 0 high priority and 1 normal? And yes those bands were disabled by default

HaiKaiDo said:
outside of the Atlanta Ga market. The weird thing is that when everything was set to 1 I never could connect to lte. When i set them all to 0 with all bands enabled I get a slight LTE signal. So maybe its like 0 high priority and 1 normal? And yes those bands were disabled by default
Click to expand...
Click to collapse
According to this thread http://s4gru.com/index.php?/topic/4886-lg-g2-users-thread/page-2, a "0" is meant for low priority and a "1" is for high priority.
Hmmm outside of Atlanta, GA isn't specific enough. It might be hard to verify this. There is LTE 2600 available in certain parts of Atlanta, GA blasting out the signal right now but I think I need more details like the community and nearby major cross street in town.

ericdabbs said:
According to this thread http://s4gru.com/index.php?/topic/4886-lg-g2-users-thread/page-2, a "0" is meant for low priority and a "1" is for high priority.
Hmmm outside of Atlanta, GA isn't specific enough. It might be hard to verify this. There is LTE 2600 available in certain parts of Atlanta, GA blasting out the signal right now but I think I need more details like the community and nearby major cross street in town.
Click to expand...
Click to collapse
Well so far my tests have proven otherwise. Right now I just have 2600 enabled and the other disabled, With 0 value set I stays on LTE with 1 set it trys LTE but then lets go. Ill tell you Im in the worst market for lte in my area. 10 minutes in either direction and i get LTE, but where I live theres VERY little.

HaiKaiDo said:
Well so far my tests have proven otherwise. Right now I just have 2600 enabled and the other disabled, With 0 value set I stays on LTE with 1 set it trys LTE but then lets go. Ill tell you Im in the worst market for lte in my area. 10 minutes in either direction and i get LTE, but where I live theres VERY little.
Click to expand...
Click to collapse
Well having B26 and B41 enabled doesn't mean your LTE will perform any better if the only LTE you have around you is B25. The reason to enable is that the hope is that if you are in an area where B41 LTE is available, the G2 should try to connect to that tower if it is within range. Its ok though, I am probably blowing your mind already with the stuff I am asking you to do so you can forget it. Thanks for the information though.
Btw, just curious did you get your phone already because you are an employee of Sprint or did you preorder early on Oct 11th? I preordered my LG G2 but I have not yet heard any confirmation of shipment.

ericdabbs said:
Well having B26 and B41 enabled doesn't mean your LTE will perform any better if the only LTE you have around you is B25. The reason to enable is that the hope is that if you are in an area where B41 LTE is available, the G2 should try to connect to that tower if it is within range. Its ok though, I am probably blowing your mind already with the stuff I am asking you to do so you can forget it. Thanks for the information though.
Btw, just curious did you get your phone already because you are an employee of Sprint or did you preorder early on Oct 11th? I preordered my LG G2 but I have not yet heard any confirmation of shipment.
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Click to collapse
lol blowing my mind? XD Its just LTE values . But yeah got it early as employee

HaiKaiDo said:
lol blowing my mind? XD Its just LTE values . But yeah got it early as employee
Click to expand...
Click to collapse
I wasn't sure how tech saavy you were. Most people would have their minds blown by now. I guess you are not the average employee. HAHA ...i just wish I could get my LG G2 , get the MSL and enable the B26 and B41 LTE bands and go to my local towers that i know for sure is blasting out LTE 2600 and verify that I am getting and able to use the LTE 2600 signal.
There is an Android app called SignalCheck Pro (https://play.google.com/store/apps/details?id=com.blueline.signalcheck&hl=en) that can show which frequencies you are connected to.
And then you would have to verify that you are truly connected to the B41 LTE band using the ##DEBUG# dialer code under LTE Engineering.

HaiKaiDo said:
Hey Guys,
Just got mine in the mail today (how is a secret ;D) So if anyone has any questions let me know. Not that its going to be all that different than the other versions lol. So yeah, WOOO! I love this thing :]
Click to expand...
Click to collapse
Oh shoot its HaiKaiDo. Have not seen or heard from you in awhile there friend. Now I see you are back on the same device as I am just a different carrier.

ericdabbs said:
I wasn't sure how tech saavy you were. Most people would have their minds blown by now. I guess you are not the average employee. HAHA ...i just wish I could get my LG G2 , get the MSL and enable the B26 and B41 LTE bands and go to my local towers that i know for sure is blasting out LTE 2600 and verify that I am getting and able to use the LTE 2600 signal.
There is an Android app called SignalCheck Pro (https://play.google.com/store/apps/details?id=com.blueline.signalcheck&hl=en) that can show which frequencies you are connected to.
And then you would have to verify that you are truly connected to the B41 LTE band using the ##DEBUG# dialer code under LTE Engineering.
Click to expand...
Click to collapse
ill grab that app. Sounds useful. Also yeah, I work as a tech in a repair center (not that, that carrys much weight as alot of the tech are brain dead idiots!) and ive done some rom development in the past for a few phones, so no worries about things going over my head lol.

rquiett said:
Oh shoot its HaiKaiDo. Have not seen or heard from you in awhile there friend. Now I see you are back on the same device as I am just a different carrier.
Click to expand...
Click to collapse
Duuuuude!!!! Nice Hooray! Maybe we can do something on here once things get going :]

HaiKaiDo said:
Duuuuude!!!! Nice Hooray! Maybe we can do something on here once things get going :]
Click to expand...
Click to collapse
I am sure there will be a way to do that even with different carriers. Brings back memories of my old captivate seeing you here

rquiett said:
I am sure there will be a way to do that even with different carriers. Brings back memories of my old captivate seeing you here
Click to expand...
Click to collapse
I still think that was the best phone I ever had lol.

HaiKaiDo said:
I still think that was the best phone I ever had lol.
Click to expand...
Click to collapse
I got my SPRINT LG G2 as well today! so far I like it alot. Something I noticed though is now I dont have LTE in my house. however on my htc one and samsung note 3 I did. Other than that its been pretty smooth so far

You guys are killing me! I've had my phone on order since the 11th and still no phone. Any word on if they may ship any pre-orders early? Ordered mine from Best Buy
Sent from my SPH-D710 using XDA Premium 4 mobile app

HaiKaiDo said:
ill grab that app. Sounds useful. Also yeah, I work as a tech in a repair center (not that, that carrys much weight as alot of the tech are brain dead idiots!) and ive done some rom development in the past for a few phones, so no worries about things going over my head lol.
Click to expand...
Click to collapse
Ahh i see. Well good to hear from you. Yeah that SignalCheck app is cool. I definitely recommend you getting the Pro version for $2. The app was actually developed by a member at the S4GRU.com forums and it has been very useful in finding LTE especially with the Network Vision project going around Sprint by giving you audio and message alerts when LTE and 1x800 is nearby.
There are a lot of smart people over at S4GRU.com that know a lot about Network Vision and about smartphones in general. I learned all my information from that website alone. It is because of that site, I am able to find out which areas across the US that have B41 LTE that is broadcasting live at this moment.

hey HaiKaiDo. I have been reading in other forums that the Sprint LG G2 may be suffering from B25 LTE connectivity issues? Can you confirm if you are having LTE connectivity issues thus far?

Root it!