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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.
Click to expand...
Click to collapse
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?
Click to expand...
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?
Click to expand...
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
- wrong again CDMA is only 1.25 MHz
3.
ATT went with half duplex
Click to expand...
Click to collapse
- 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
Click to expand...
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
Click to expand...
Click to collapse
Yep, my mistake, typo.
3. - wrong again please lookup FDD (Frequency division duplex) vs TDD (Time division duplex).
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
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.
Click to expand...
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?
I'm in the Los Angeles area where Sprint's 4G Network is just being built up. The service is terribly slow, even when on the 4G Network. My question/problem though is, I've noticed that when I go from one area to another, for instance if I'm at a shopping center and on tower that's 3G and then cross the street to another shopping center that has a tower that's 4G... my Data gets all screwed up. Somehow in the process of connecting to a new tower with a different speed, my Data always freezes up and you can't do anything for long periods of time. I'm talking anywhere from 5-10 minutes. I often have to put my phone into Airplane mode and reconnect to get anything moving.
Just wondering if this was a common occurrence? Or if this is just a result of Sprint's crappy network, or what.
On a related note, I've also noticed that even if I'm not going between towers, there are a lot of times when my phone says it has a strong Data Connection on either 3G or 4G, say 3 bars or so, and yet my Data hangs and I can't use the web. Any ideas what the cause might be?
captaingrey said:
I'm in the Los Angeles area where Sprint's 4G Network is just being built up. The service is terribly slow, even when on the 4G Network. My question/problem though is, I've noticed that when I go from one area to another, for instance if I'm at a shopping center and on tower that's 3G and then cross the street to another shopping center that has a tower that's 4G... my Data gets all screwed up. Somehow in the process of connecting to a new tower with a different speed, my Data always freezes up and you can't do anything for long periods of time. I'm talking anywhere from 5-10 minutes. I often have to put my phone into Airplane mode and reconnect to get anything moving.
Just wondering if this was a common occurrence? Or if this is just a result of Sprint's crappy network, or what.
On a related note, I've also noticed that even if I'm not going between towers, there are a lot of times when my phone says it has a strong Data Connection on either 3G or 4G, say 3 bars or so, and yet my Data hangs and I can't use the web. Any ideas what the cause might be?
Click to expand...
Click to collapse
The bars do not determine your signal strength. There's cases where people have no bars but data is still being transferred and get fantastic speeds. I recommend installing Speedtest and depending on your results you should call your network provider on the data issue
Sent from my Nexus 4 using xda premium
LuigiBull23 said:
The bars do not determine your signal strength. There's cases where people have no bars but data is still being transferred and get fantastic speeds. I recommend installing Speedtest and depending on your results you should call your network provider on the data issue
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Yeah, I have Speedtest. The speeds in LA are awful. Usually range from 0.54 to 0.78 mbps DL on 3G. On 4G its about 8.7 - 9.13.
And thanks for the response, but I still don't understand what the connection issue is between Towers and I'm pretty sure calling Sprint to ask them what the deal is would be a waste of 3 hours.
captaingrey said:
I'm in the Los Angeles area where Sprint's 4G Network is just being built up. The service is terribly slow, even when on the 4G Network. My question/problem though is, I've noticed that when I go from one area to another, for instance if I'm at a shopping center and on tower that's 3G and then cross the street to another shopping center that has a tower that's 4G... my Data gets all screwed up. Somehow in the process of connecting to a new tower with a different speed, my Data always freezes up and you can't do anything for long periods of time. I'm talking anywhere from 5-10 minutes. I often have to put my phone into Airplane mode and reconnect to get anything moving.
Just wondering if this was a common occurrence? Or if this is just a result of Sprint's crappy network, or what.
On a related note, I've also noticed that even if I'm not going between towers, there are a lot of times when my phone says it has a strong Data Connection on either 3G or 4G, say 3 bars or so, and yet my Data hangs and I can't use the web. Any ideas what the cause might be?
Click to expand...
Click to collapse
I may not know what can cause this issue but I can try to help on making it a tad better. Check out my recent post on how to increase your data speed on the Note 2 http://forum.xda-developers.com/showthread.php?t=2253340 and if your data does hang, try going into Settings, More Settings, Mobile networks, and just uncheck and check Mobile data. Hope this helps out.
I recently revisited the ##3282# menu to try to cure my constantly unstable data connection. I went under OTHERS and then under HDR/1X Selection and chose EHRPD 1x Mode.
THIS WILL DISABLE LTE
This has made a world of difference in my phone and I hope others can benefit from it. Please chime in if you experience any adverse effects. Calls/text seem to be working better than ever for me along with a rock solid 1mbps data connection.
Edit: looks like I have no ehrpd at my house so I am trying hybrid mode. Seems solid so far.
Sent from my SPH-L900 using Tapatalk 4
Taken from below by s4gru
http://s4gru.com/index.php?/topic/1819-what-is-ehrpd/
For the most part, eHRPD is EVDO-A. Both are 3G CDMA technology. EVDO is a High Rate Packet Data technology, and eHRPD is Evolved High Rate Packet Data. It is essentially the same exact technology, except eHRPD data is routed through the LTE core instead of the MSC (switch) so it can maintain the same IP address as LTE. This allows for data hand offs between LTE and 3G. Only LTE devices are capable of eHRPD connections.
eHRPD and EVDO-A are broadcast from the same tower on the same channel using the same technology and the same backhaul. It is one signal, not two different signals. However, if your device is in CDMA only mode (or you have a non-LTE device), your data from your device goes from the site through backhaul to a Sprint MSC switching center is processed and dumped out onto the internet backbone.
If your device is in CDMA/LTE mode and your site has been upgraded to eHRPD, when your device data gets to the site, it goes through the backhaul to a 4G LTE core instead of the MSC. There it is processed and dumped out onto the internet backbone.
So, the only difference in performance between eHRPD and EVDO-A on the same site occurs at the MSC vs. the LTE core. Everything else is pretty much identical between the two. Each site in the Sprint network is tied to a very specific MSC for 1x voice and EVDO data. Sprint has dozens of MSC's scattered around the country. When that MSC experiences problems or has a logjam, it affects all the sites connected to it. And EVDO can slow down (although this is not the big culprit in Sprint 3G deterioration).
In contrast to how the MSC's handle 1x and 3G EVDO data, 3G eHRPD and 4G LTE data are processed through 4G cores. Unlike MSC, sites are not limited to only one core. Sprint is setting up their 4G LTE cores to be dynamic. So if one core is too busy, data can be routed to a different under burdened core.
Performance between EVDO-A and eHRPD should be very similar when on the same channel from the same exact site. The most common difference is that eHRPD will often have faster ping times. And a MSC is more likely to bottleneck than an LTE core, so at peak times EVDO may be slightly slower than eHRPD (when all things are the same).
Sent from my SPH-L900 using Tapatalk 4
So do you lose access to LTE then? Mine is currently set to CDMA-LTE-EVDO. If one chooses the 1x eHRPD mode, wouldn't you then not connect to LTE where available?
**EDIT**
To answer my own question, i just discovered that doing this disables LTE. Go into ##3282# and View, Advanced and on the bottom, LTE status is "Disabled".
Going back to CDMA-LTE-EVDO. I like my LTE (even the little i get here and there in NYC).
I am unable to test but from what I have read only lte capable phones can even use ehrpd so I don't see why it would not work.
Edit: doesn't work
Sent from my SPH-L900 using Tapatalk 4
Simple because like the LTE ONLY selection ehrpd is ehrpd only mode which is 3g only. But if you get LTE at home try the LTE only selection youll love it.
One more thing your name os eerily similar to my real name
Cool name bro. Lol. Alright did a little editing to reflect lack of lte but otherwise this is really a useful option for me at work. My phone was constantly flipping from 3g to 1x making it unusable but now I get perfect 3g all the time.
Sent from my SPH-L900 using Tapatalk 4
You should mention in the OP that you need your MSL to see the HDR/1X selection menu.
Does this do anything different than going into "network mode" under settings and changing it from "LTE / CDMA" to "CDMA"? If they're the same thing this seems easier.
honki24 said:
Does this do anything different than going into "network mode" under settings and changing it from "LTE / CDMA" to "CDMA"? If they're the same thing this seems easier.
Click to expand...
Click to collapse
Seems to be the same thing really, I think..
honki24 said:
Does this do anything different than going into "network mode" under settings and changing it from "LTE / CDMA" to "CDMA"? If they're the same thing this seems easier.
Click to expand...
Click to collapse
LordLugard said:
Seems to be the same thing really, I think..
Click to expand...
Click to collapse
Its not the same.
Under settings mobile type you will see
CDMA = 1xRTT:6
Speed test 123kbps down 172kbps up
eHRPD = eHRPD:13
Speed test 381kbps down 310kbps up
YMMV
Sent from my SPH-L900 using Tapatalk 4
If you read my initial reply to OP, doing what he suggests just turns off LTE... You might as well go into Settings and set it to CDMA/EVDO only which also turns off LTE. Same thing..
This thread is not about those with LTE its for people with limited and unreliable 3g. Simply just going under mobile networks and choosing cdma did not work it would cycle nonstop from 3g to 1x and was unbearable. Choosing ehrpd disables 1x alltogether creating a stable 3g connection.
Sent from my SPH-L900 using Tapatalk 4
I really wanted to like it.
I have been running PA/CM rom since they first came out, flipping back and forth. ZVA came out and i was excited and TOT to it. my signal went to ****.
95% of my day is in a 4g area, on ZV8, I see 4g (and pretty fast speeds) most of my day.
I flashed to ZVA, and i can watch the 4g (at my desk, so basically the same place everyday) flip to 3g for no reason. the worst part is it does it in the middle of something. if i go into airplane mode and back out it goes to 4g, for a few minutes and flips to 3g again. so frustrating.
on the way home we drive by an antenna and with ZV8 i see 40 megabit speeds (i can see the antenna from the car)
on ZVA, it will NEVER flip to 4g. we will come into, and go out of the coverage area for that antenna and it will stay in 3g the whole time. if i flip airplane mode, it will kick into 4g.
absolutely terrible!
so ZVC comes out, I TOT to it for a day. same exact problems. 0 4g like the phone does not even try to look for it! also a co worker has the same phone and the same issues. He requested i flash him back to ZV8 just because of the terrible signal on ZVA/ZVC (he has never run a rom or anything other than stock)
is anyone else experiencing these problems?
is there anything that i can do that might help? id like to rock ZVC, but without reliable 4g its a no go
Have you tried disabling band 26 and 41 to see if you get same 4g as before. If not give it a try. ##DATA# and edit LTE. You will need your MSL. Maybe that would help. You will lose the other bands but maybe that is your problem. Maybe trying to connect to those bands but have bad signal so stays on 3g.
Working well for me surprisingly enough
Sent from my LG-LS980 using Tapatalk
Had the same exact problems and disabling bands 41 and 26 helped a lot. However, that means you basically are back to non-Spark, but that was still better than the frustrating fall back to 3G and staying on 3G. Some people say that just disabling band 41 helps too.
However, I've noticed much less of a problem recently with this issue with all 3 bands enabled on ZVA. I suspect that Sprint is upgrading towers around my area to better address this issue. So maybe it's not a software issue on our phones.
Sent from my LG-LS980 using xda app-developers app
The problem is ecsfb (enhanced circuit switched fallback) spark phones can't connect to the voice network and lte at the same time because they only have one antenna instead of two. But to be able to switch back and forth between lte and 3g the towers you're on need to have ecsfb enabled. I had the same problems before but it seems in my area (nyc) that they're starting to enable it as I'll be on lte get a call and then get put back on lte right after the call is up. The coverage for lte in my house is pretty horrible though the signal is like -120dbm outside its much better like -90ish. I just got an airave for my house because I was getting some dropped calls and it worked great for like the first hour the signal went to like -47dbm for the voice/3g network. However after a while it stopped using the airave and it went back to using lte and regular voice towers. I switched my phone to cdma only and it started using the airave again but just now I switched it back to lte/cdma and its no longer using the airave. So that kind of sucks lol. But back to spark it seems to be improving regarding switching to 3g/lte but the coverage hasnt changed much atleast in my house. Whenever I check which band I'm on its either 25 or 41 I have yet to see it go on 26. Hopefully they can hurry it up I considered switching to tmobile last week after sprint tried to charge to say my next bill would be $240 after they told me two weeks before it would be $180 smh. I complained like crazy and they decided to pay the difference and lower my bill so I'll stick with them for now.
OfficialPerson said:
However after a while it stopped using the airave and it went back to using lte and regular voice towers. I switched my phone to cdma only and it started using the airave again but just now I switched it back to lte/cdma and its no longer using the airave.
Click to expand...
Click to collapse
Yeah, another known issue with triband phones... The Airave won't connect if your phone is in LTE. But because your phone gets crappy signal at your house, you'll get crappy LTE that intermittently connects, so therefore airave only intermittently connects when you are on CDMA.
I have Tasker automating the switching between LTE/CDMA and CDMA only when I enter and leave my house, but I this solution isn't the best.
beezar said:
Yeah, another known issue with triband phones... The Airave won't connect if your phone is in LTE. But because your phone gets crappy signal at your house, you'll get crappy LTE that intermittently connects, so therefore airave only intermittently connects when you are on CDMA.
I have Tasker automating the switching between LTE/CDMA and CDMA only when I enter and leave my house, but I this solution isn't the best.
Click to expand...
Click to collapse
I was gonna say I hope theres a way to get it to switch between the two when I leave and come back home thanks for the suggestion I'm going to check it out now.
beezar said:
Yeah, another known issue with triband phones... The Airave won't connect if your phone is in LTE. But because your phone gets crappy signal at your house, you'll get crappy LTE that intermittently connects, so therefore airave only intermittently connects when you are on CDMA.
I have Tasker automating the switching between LTE/CDMA and CDMA only when I enter and leave my house, but I this solution isn't the best.
Click to expand...
Click to collapse
I downloaded tasker and I can't seem to figure out how to automate it to turn on 3g when I'm home and 4g when I leave would you mind letting me know how you set yours up?
OfficialPerson said:
I downloaded tasker and I can't seem to figure out how to automate it to turn on 3g when I'm home and 4g when I leave would you mind letting me know how you set yours up?
Click to expand...
Click to collapse
4G uses a lot of battery, I stick to 3G which is fast enough for me plus LTE is not compatible with my Airave 2.5+. Also why not use WiFi at home it does wonders for battery life?
abhinav.tella said:
4G uses a lot of battery, I stick to 3G which is fast enough for me plus LTE is not compatible with my Airave 2.5+. Also why not use WiFi at home it does wonders for battery life?
Click to expand...
Click to collapse
3g is way too slow for me I get 1mbps on average up and down. 4g may take more battery but for me it lasts long enough and the benefits are much greater. I do use wifi at home though but if you have the network set to lte the phone won't fully connect to the airave atleast for me because
the lte signal in my house is very low (about -120dbm). So in order to take advantage of the airave I have to set it to 3g even though I'm using wifi. The only alternative I have thus far is the anycut app I put a network settings widget on one of my home screens I can click that and it brings me to the lte/3g setting but its still not as good as having the phone switch itself instantly.
Yep, Airave doesnt support LTE, but do turn off data at home as its an unnecessary drain, dont know about your internet but my Comcast 30Mbps is faster than using the network, plus Airave uses 3G by drawing fom main internet anyway. Also restrict your Airave in settings to only your family numbers unless you want unnecessary connections from neighbors causing bandwidth loss. If you have a big home, call and Airave support will increase your Airave power output to cover about 5,000 Sqft.
Sorry, but theres no reason the phone should not be switching dynamically to 4g as the signal comes available. When I'm at work, and on 4.4.2 it will stay on 4g, and flip itself to 3g in the middle of a file transfer!!
on ZV8, it will get 3 bars of 4g in the same spot.
johnzm said:
Sorry, but theres no reason the phone should not be switching dynamically to 4g as the signal comes available. When I'm at work, and on 4.4.2 it will stay on 4g, and flip itself to 3g in the middle of a file transfer!!
on ZV8, it will get 3 bars of 4g in the same spot.
Click to expand...
Click to collapse
Airave does not support LTE, so if you dont set it to CDMA only it wont connect to Airave. Thats why even Sprint support says to set to CDMA only, when near an Airave.
OfficialPerson said:
The problem is ecsfb (enhanced circuit switched fallback) spark phones can't connect to the voice network and lte at the same time because they only have one antenna instead of two. But to be able to switch back and forth between lte and 3g the towers you're on need to have ecsfb enabled. I had the same problems before but it seems in my area (nyc) that they're starting to enable it as I'll be on lte get a call and then get put back on lte right after the call is up. The coverage for lte in my house is pretty horrible though the signal is like -120dbm outside its much better like -90ish. I just got an airave for my house because I was getting some dropped calls and it worked great for like the first hour the signal went to like -47dbm for the voice/3g network. However after a while it stopped using the airave and it went back to using lte and regular voice towers. I switched my phone to cdma only and it started using the airave again but just now I switched it back to lte/cdma and its no longer using the airave. So that kind of sucks lol. But back to spark it seems to be improving regarding switching to 3g/lte but the coverage hasnt changed much atleast in my house. Whenever I check which band I'm on its either 25 or 41 I have yet to see it go on 26. Hopefully they can hurry it up I considered switching to tmobile last week after sprint tried to charge to say my next bill would be $240 after they told me two weeks before it would be $180 smh. I complained like crazy and they decided to pay the difference and lower my bill so I'll stick with them for now.
Click to expand...
Click to collapse
data connected on voice channel is 2g, not 3g
there are 3 channels: 1xRTT, EVDO, and LTE
un1ocked said:
data connected on voice channel is 2g, not 3g
there are 3 channels: 1xRTT, EVDO, and LTE
Click to expand...
Click to collapse
What I'm more referring to is the settings in mobile networks. You have to put it to 3g/cdma depending on your rom and whatnot to be able to connect to the airave.
Band 26 isn't out yet if i'm not mistaken. I believe 41 is limited also. Disabling 26/41 will bring you back to nonspark band 25
i dont know how airave got involved in this thread. i could care less if i get solid 3g at my house, i am more concerned about the spark rom's delivering a reliable 4g connection when its available (which it does not)
OfficialPerson said:
I downloaded tasker and I can't seem to figure out how to automate it to turn on 3g when I'm home and 4g when I leave would you mind letting me know how you set yours up?
Click to expand...
Click to collapse
It's not a great of a solution, but it is automated. I have a profile with the state being connection to my home wifi. Enter task turns off keyguard, then enters mobile data settings, turns on the screen, and then uses two touchscreen taps to tap mobile networks then CDMA.
To execute screen taps, you use a Run shell command of "input tap x y" where the x and y are coordinates of where you want to tap. You figure out the coordinates by showing touch data in the developer options in settings. Be sure you enable root access for the run shell command otherwise it won't work.
Then you can shut the screen off with a system lock. The exit task is just opposite.
beezar said:
It's not a great of a solution, but it is automated. I have a profile with the state being connection to my home wifi. Enter task turns off keyguard, then enters mobile data settings, turns on the screen, and then uses two touchscreen taps to tap mobile networks then CDMA.
To execute screen taps, you use a Run shell command of "input tap x y" where the x and y are coordinates of where you want to tap. You figure out the coordinates by showing touch data in the developer options in settings. Be sure you enable root access for the run shell command otherwise it won't work.
Then you can shut the screen off with a system lock. The exit task is just opposite.
Click to expand...
Click to collapse
Yikes thats a bit of a setup I'm using anycut with a network settings shortcut on my home screen it goes straight to the setting page for switching to lte/cdma.
OfficialPerson said:
Yikes thats a bit of a setup I'm using anycut with a network settings shortcut on my home screen it goes straight to the setting page for switching to lte/cdma.
Click to expand...
Click to collapse
Well, Tasker can enter the same page that switches lte/cdma via the Mobile Data settings. The issue is there is no Tasker setting or plugin or anything I've seen that lets you actually change the setting without simulating button taps via a run shell command.
Like I said, not a great solution, but it works. When I enter my house, I'm on CDMA, and when I leave, Global setting without me doing anything.
Was briefly excited on the arrival of my US version from oppostyle, but after hours of T-mobile tech support, a factory reset, APN attempts, still no LTE or proper 3g even on my Find 7, even though I live in a strong 3g/4g area...only (HSPA) H and H+. Can anyone help?
Thank you
ramana.spencer said:
Was briefly excited on the arrival of my US version from oppostyle, but after hours of T-mobile tech support, a factory reset, APN attempts, still no LTE or proper 3g even on my Find 7, even though I live in a strong 3g/4g area...only (HSPA) H and H+. Can anyone help?
Thank you
Click to expand...
Click to collapse
Hmm, those match my settings and I am getting LTE. Dumb question, but have you restarted? I noticed my phone can get kinda quirky when switching between APN's, or if the data gets turned off by another app for some dumb reason or another.
I have a feeling there is a little more tweaking to do to the modem from Oppo...
farfromovin said:
Hmm, those match my settings and I am getting LTE. Dumb question, but have you restarted? I noticed my phone can get kinda quirky when switching between APN's, or if the data gets turned off by another app for some dumb reason or another.
I have a feeling there is a little more tweaking to do to the modem from Oppo...
Click to expand...
Click to collapse
I get LTE (4G) with these setting just fine on TMO in Texas.... remember it will show 4G not LTE.
ramana.spencer said:
Was briefly excited on the arrival of my US version from oppostyle, but after hours of T-mobile tech support, a factory reset, APN attempts, still no LTE or proper 3g even on my Find 7, even though I live in a strong 3g/4g area...only (HSPA) H and H+. Can anyone help?
Thank you
Click to expand...
Click to collapse
Have you confirmed that you actually have LTE in your area?
Remember that for years, T-Mobile and AT&T called HSPA+ "4G"
Entropy512 said:
Have you confirmed that you actually have LTE in your area?
Remember that for years, T-Mobile and AT&T called HSPA+ "4G"
Click to expand...
Click to collapse
I was uunclear about H+, have just been looking up info....Was on Verizon, a GSM newbee here
However, I am seeing very slow speeds on HSPA+ and HSP...not even seeing much of a difference in speeds between the two on my device.
between them. Averaging 0.6 Mbps to 1.3 Mbps down, and 0.8 mbps to 1.3 Mbps up, even though T-mobile tech support claims I have excellent 4g coverage in my area. Is this most likely hardware?
Also, on my roadtrip yesterday to Medford, I was capping off at around 10 Mbps on LTE at the most, which seems a ,ittle slow for LTE.
ramana.spencer said:
I was uunclear about H+, have just been looking up info....Was on Verizon, a GSM newbee here
However, I am seeing very slow speeds on HSPA+ and HSP...not even seeing much of a difference in speeds between the two on my device.
between them. Averaging 0.6 Mbps to 1.3 Mbps down, and 0.8 mbps to 1.3 Mbps up, even though T-mobile tech support claims I have excellent 4g coverage in my area. Is this most likely hardware?
Also, on my roadtrip yesterday to Medford, I was capping off at around 10 Mbps on LTE at the most, which seems a ,ittle slow for LTE.
Click to expand...
Click to collapse
Sometimes your coverage can be solid but the backhaul (connection between towers and the Internet) can be awful. AT&T's local reps even told me that the local LTE isn't going to be particularly good for a while until they upgrade the backhaul to the towers.
Your HSPA+ speeds seem low, but that's in comparison with my AT&T experiences. I might try doing a speedtest comparison of LTE between my Nexus 5 and my Find 7a if I can.
I was reading the pocketnow review and they had trouble getting the phone to work on AT&T and T-mobile in the US. Does this phone even support T-Mobile LTE bands? In most areas T-Mobile has their LTE on the AWS band.
Sent from my LG-E980 using xda app-developers app
It actually does support them...I was told there was 4g here but there isn't as of yet
Sent from my X9006 using Tapatalk
Mine does get all of these (4G, H, H+, etc.) but the problem is most of the time it can't even get data connection.
GPRS Setting for LTE works for Me
I was having problems connecting to data,calls no problem (OPPO FIND 7 USA).
Anyway,the automatic APN settings weren't right for me,I had to manually set the APN Protocol setting to IPV4 (wasn't set,reading Not Set) & it finally connected to 4G LTE.
Here's the strange part:
The APN Name (On OPPO FIND 7,USA Model) is T-Mobile GPRS NOT T-Mobile LTE.
If I changed the name,it wouldn't connect to data at all.
From best I can tell via web search, GPRS is synonymous with 2G,however,I have 4G LTE when this APN Name is used.
I've seen others having a hard time connecting to the network & seems this bug arose in the latest update.
Anyway,my settings are identical to those in the pics in the OP EXCEPT the very 1st line,the APN Name.
Where I'm at right now is notorious for a weak signal due to building/equipment interference,however,I'm picking up an excellent signal (-90 to -80dBm / 53asu) on LTE:13
Have you tried to turn on LTE 4G by going in the dialer type *#*#4636#*#* phone information and set preferred network as LTE only ?
Snorl4x said:
Have you tried to turn on LTE 4G by going in the dialer type *#*#4636#*#* phone information and set preferred network as LTE only ?
Click to expand...
Click to collapse
Yes.
As it is now,w/the APN Name as T-Mobile GPRS & in the hidden menu,changing the preferred network to LTE has no effect,it stays connected to LTE & everything below that which is available in my area.
I just left it as UNKNOWN.
I tried changing the APN Name to T-Mobile LTE & it immediately disconnects,regardless of any other changes in the hidden menus.
As the phone senses/sets-up Auto APN,the only apparent thing that is omitted is the APN Protocol setting,which by default on my phone & SIM Card registered Not Set.
Changing that value to IPV4 (from Not Set) is what made the difference.
Perhaps this quirk has something to do with 2G in my area having been replaced/upgraded to 4G & 4G LTE & the phone doesn't sense the difference/recognize the difference but in name only,but,accepts the 4G/LTE Connection.
Not knowing all things network/etc..,this seems like a possible explanation.
All I know is that I have an excellent connection & fast speeds w/browsing/etc.....
I don't care what the phone calls it,or sees it as,success is success.
I've seen stranger things than this........
I have since replaced my SIM CARD & had no problems connecting to T-MOBILE's 4G LTE,no modification of the APN was needed.
However,this is while flashed to CYANOGENMOD 11 nightlies,have no idea if the previous issues would pop-up if running the stock COLOR 1.2.4i O/S.
I have had issues with T-mobile LTE. Played around with all the settings. Deleted the APN and created a new one, etc. It works now, but I didn't do anything special, it started working randomly a day or 2 later
Strangely enough I'm having the same problem getting 3g with Virgin (EE/TMobile) in the UK
It can take a while for LTE to provision after setting up the APN. Set it and let it try for about an hour.
APN
The APN setting should have no effect on this.
You have 2 different fields when you type *#*#4636#*#*, gsm service and gprs service. If gsm service does not show "in service", you can use any APN in the world and it still won't work.