Develop Bugs

[Q] HSPA+ and HSPDA Proof.

So here is my question. If you go to Settings > About Phone > Status > and then look under Mobile Network Type, it tells you which type of Network you are currently connected to.
I live in NYC and also in Washington, DC, both arees that should have patches of HSPA+, and I've never once seen my phone connect to anything higher than HSPDA.
My Question is, should it state HSPA+ in my Phone Status screen? And if so, I want proof by way of a screen shot that somebody has actually connected to HSPA+. I've had my G2 since a few days before it was released, and I check this almost everyday to see if my phone will ever display HSPA+ in the Mobile Network Type page in the settings.
Can anybody show me proof that they are on HSPA+? And I don't want to see speedtest results. Everyone claims they are on HSPA+ based on speedtest results. I want a screen shot showing this, IF it in fact does display HSPA+ under these settings when connected.
Sorry if I sound rude, I don't intend this at all, I have been wondering this for months, and have scoured the internet trying to get definitive information on this particular thing, yet to no avail.
I'm very satisfied with my phone, and in fact would recommend it to anyone in the market, I just want to see a screen shot that says HSPA+ in the settings, IF IT EVEN DOES SHOW THIS, that's all!! My phone's network connection is still pretty fast.

Because we all know the "H" could mean a number of things, it doesn't necesarily mean HSPA+ which is why T-Mobile can get away with displaying an "H" for a number of networks (not knocking T-Mobile at all, I'm a loyal subscriber).

If you consider HSPA+ to differ and to be a level above HSDPA or HSUPA, the G2 won't be able to reach it. That's because HSPA+ network can be considered multiple cell HSPA (HSPA = HSDPA & HSUPA) and HSDPA maximum throughput is 14Mb/s. That was the advertised maximum capability of the phone. Most HSPA towers (non-plus) have throughput of 2, 3, 5, 7Mbps anyway, and it's unlikely that the network differentiates between HSPA+ and HSPA. If you find yourself in an HSPA+ cell, your speeds should go as high as 14Mbps, but you may not know if it's HSDPA at it's max or HSPA+ running at a higher speed.

High Speed Packet Access (HSPA) [1] is a amalgamation of two mobile telephony protocols, High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA), that extends and improves the performance of existing WCDMA protocols. A further standard, Evolved HSPA (also known as HSPA+), was released late in 2008 with subsequent adoption worldwide beginning in 2010... so another words hspa and hspa+ is the same thing.. but when your closer to a "4g " tower of course your internet speeds will respond faster.. to know what kind of internet your on.. go to menu, settings, about phone, than network
sent from t-mobile g2 using HTC sense

Cellular strength and throughput

We know how much you like to stream, ahem, "videos", and so cellular data is mega-important. Rate this thread to express how you think the Samsung Galaxy S8+'s LTE performs. A higher rating indicates that it's fantastic: throughput is excellent and signal strength is top-notch.
Then, drop a comment if you have anything to add.

I get a low 4g signal at work whereas on my s7 edge I didn't get anything

Mine is a lot better than any phone I've had before. Usually at home on all my other phones I have 1-2 bars and on the S8+ I have at least 4 bars.

Bars are no indication of true signal strength. My S8+ doesn't get nearly as strong of a signal as my Pixel XL. I drop signal a lot more often now. I was rather disappointed with the performance of the cell radio actually.

For me, the signal is about the same at home. But at work, the S8+ performs much better than the Note5 that I had... Must be an extra band or something. The Note5 would hang on to an unusable LTE signal or drop to 3G/1x inside my job. The S8+ stays on on LTE with a usable signal.
Sent from my SM-G955U using Tapatalk

It's worst Then S8 as I used that before shifting to S8 plus. But download speed is great.

My S7 was better. The S7 ised a new duel antenna tech, I am not sure the S8 used it or not.

My AT&T Note 4 and my new S8+ get about the same signal, which is really disappointing

I generally see around 5-8dbm better then I did with my pixel xl at home..notice the s8+ does drop signal little easier tho then my pixel in fringe areas

Tested right outside my house. Never had these speeds on my Note 5.

Comming from a S6, the signals and speeds are far better, also my s6 was missing a few bands so never ever got speeds like this on my Jio 4G Network in India

At work on LTE Im getting 31 Mbps down and 6 Mbps up. Not bad! Faster than our company wifi!

webtech9 said:
At work on LTE Im getting 31 Mbps down and 6 Mbps up. Not bad! Faster than our company wifi!
Click to expand...
Click to collapse
I used to get 54Mbps which WAS faster than the company wifi. Then we bumped up to 500Mb.

Poor Reception in Canada on Bell Mobility
I just got an unlocked S8+ that was apparently originally from Sprint (because that is where the home page goes in Samsung Internet).
I do not get very good reception on it – even in urban/suburban areas. Sometimes, when I am inside a building, it disappears altogether. I often get 1 or 2 bars on the reception indicator. If I check the “Sim Card Status” screen under settings I get -105 dBm 3 asu. I don’t really know what those numbers mean.
Is there anything I can do to improve reception? Should I be calling Bell and maybe they need to know what kind of phone I have? Should I expect an S8+ purchased directly from Bell (they also carry this phone) to have better reception? Or is the reception of “105 dBm 3 asu” fine and it’s just the indicator showing low levels?
As much as I like this phone I cannot be missing calls randomly. I have a business to run.
Thanks.
The Fish

thefish123 said:
I just got an unlocked S8+ that was apparently originally from Sprint (because that is where the home page goes in Samsung Internet).
I do not get very good reception on it – even in urban/suburban areas. Sometimes, when I am inside a building, it disappears altogether. I often get 1 or 2 bars on the reception indicator. If I check the “Sim Card Status” screen under settings I get -105 dBm 3 asu. I don’t really know what those numbers mean.
Is there anything I can do to improve reception? Should I be calling Bell and maybe they need to know what kind of phone I have? Should I expect an S8+ purchased directly from Bell (they also carry this phone) to have better reception? Or is the reception of “105 dBm 3 asu” fine and it’s just the indicator showing low levels?
As much as I like this phone I cannot be missing calls randomly. I have a business to run.
Thanks.
The Fish
Click to expand...
Click to collapse
Hey fish you want it down, the dBm i mean. Here's a quote "-50 dBm is great signal or full bars. -120 dBm is very poor signal or a dead zone." you at 105 dBm is garbage, no wonder your missing calls.. Since you are experiencing network issues, you could get a replacement, but i don’t think it will make much difference. as it's all same hardware. Why not get a Google Pixel XL i heard they got awesome reception! Or if you’re at home a lot, purchase an lte repeater booster ? Problem Solved!

Drop in signal & Block sign
Im living in UAE - and my service provider is etisalat, and my 4G signal is dropping and sometimes i get block sign, i tried my sim in different device it working.
i have started a thread on the subject if anyone could help me please.
https://forum.xda-developers.com/ga...block-sign-t3851575/post77823171#post77823171

N1NJATH3ORY said:
Hey fish you want it down, the dBm i mean. Here's a quote "-50 dBm is great signal or full bars. -120 dBm is very poor signal or a dead zone." you at 105 dBm is garbage, no wonder your missing calls.. Since you are experiencing network issues, you could get a replacement, but i don’t think it will make much difference. as it's all same hardware. Why not get a Google Pixel XL i heard they got awesome reception! Or if you’re at home a lot, purchase an lte repeater booster ? Problem Solved!
Click to expand...
Click to collapse
I went through a whole “carrier switching” routine (details found somewhere on these forums) and after changing the CSC to Canadian I flashed Bell Mobility's firmware. The phone now shows that it’s an SM-G955W which is the Canadian model. And apparently now supports additional LTE bands 29(700) and 30(2300) which were missing from the SM-G955U (I determined this by dialing *#2263#).
I have no idea if it *really* supports these bands or just *says* that it does but my gut tells me that it really does support them. I suspect that the hardware for the SM-G955U and SM-G955W is 100% identical and any differences are controlled through software only.
And I seem to have better reception now. I am getting 4 to 5 bars in most places and under -100 dBm in most places. Plus Wi-Fi calling works now so I have reception in my basement at my house.
The true test will be when we go camping next summer.
The Fish

thefish123 said:
I went through a whole “carrier switching” routine (details found somewhere on these forums) and after changing the CSC to Canadian I flashed Bell Mobility's firmware. The phone now shows that it’s an SM-G955W which is the Canadian model. And apparently now supports additional LTE bands 29(700) and 30(2300) which were missing from the SM-G955U (I determined this by dialing *#2263#).
I have no idea if it *really* supports these bands or just *says* that it does but my gut tells me that it really does support them. I suspect that the hardware for the SM-G955U and SM-G955W is 100% identical and any differences are controlled through software only.
And I seem to have better reception now. I am getting 4 to 5 bars in most places and under -100 dBm in most places. Plus Wi-Fi calling works now so I have reception in my basement at my house.
The true test will be when we go camping next summer.
The Fish
Click to expand...
Click to collapse
Happy days for you i do suffer poor signal in my house:crying: i'll see if i can flash the CSC to fix it, thanks for the update!

s7 does lot better than 8+ in the same room

Sprint S20 5G on T-Mobile

I have a Sprint S20 5G flashed with the U1 firmware, and am just trying to make sure that I am taking full advantage of T-Mobile's Network? I thought that the hardware/radio bands was identical across the different U variants? The icon at the top, which I know can mean nothing, says 5G. But in settings the network is showing up as LTE. The LTE Discovery app is showing I'm on band 66, but it also says 5G NR: Connected! It looks like my area should be well covered in 5G, so I was hoping to make sure that I'm taking full advantage, or at least am able to?
Is there any advantage to flashing the T-Mobile firmware?

...

YrrchSebor said:
I have a Sprint S20 5G flashed with the U1 firmware, and am just trying to make sure that I am taking full advantage of T-Mobile's Network? I thought that the hardware/radio bands was identical across the different U variants? The icon at the top, which I know can mean nothing, says 5G. But in settings the network is showing up as LTE. The LTE Discovery app is showing I'm on band 66, but it also says 5G NR: Connected! It looks like my area should be well covered in 5G, so I was hoping to make sure that I'm taking full advantage, or at least am able to?
Is there any advantage to flashing the T-Mobile firmware?
Click to expand...
Click to collapse
No point in flashing U instead of U1. As soon as the phone boots with a SIM, it performs another session and gets tuned to the network by the SIM. Your channels and speed will not change. BTW , I talked to a TMO service and support, and right now although 5G, speeds in most cases are at the 100M byte range. Only few lucky ones may see 1Gig if they are out in the open on a mmWave channel . However this technology is aimed at the next years for autonomous driving and other new technologies, not so much for phones, and it will not have reception inside buildings (heck, holding the phone will most likely block that signal without external antenna, and it comes from an engineer here)
---------- Post added at 04:01 AM ---------- Previous post was at 04:00 AM ----------
YrrchSebor said:
...
Click to expand...
Click to collapse
Just make sure you allow 5G to connect. Phone might be set to LTE as fastest..

YrrchSebor said:
...
Click to expand...
Click to collapse
See here:

BigE said:
No point in flashing U instead of U1. As soon as the phone boots with a SIM, it performs another session and gets tuned to the network by the SIM. Your channels and speed will not change. BTW , I talked to a TMO service and support, and right now although 5G, speeds in most cases are at the 100M byte range. Only few lucky ones may see 1Gig if they are out in the open on a mmWave channel . However this technology is aimed at the next years for autonomous driving and other new technologies, not so much for phones, and it will not have reception inside buildings (heck, holding the phone will most likely block that signal without external antenna, and it comes from an engineer here)
---------- Post added at 04:01 AM ---------- Previous post was at 04:00 AM ----------
Just make sure you allow 5G to connect. Phone might be set to LTE as fastest..
Click to expand...
Click to collapse
no offense but engineers dont always know what theyre talking about.. tnobiles nationwide 5g network penetrates well through buildings and avg speed for it is less than 100mbps.. to get 1gbps needs to be on a different 5g network (i forget what its called) which will not be bationwide or have good penetration since it has low range and needs a lot of towers in a small area so will likely only b used in major cities so seeing as hes getting over 100mbps on tmo 5g is better than average and is definitely 5g

BigE said:
No point in flashing U instead of U1. As soon as the phone boots with a SIM, it performs another session and gets tuned to the network by the SIM. Your channels and speed will not change. BTW , I talked to a TMO service and support, and right now although 5G, speeds in most cases are at the 100M byte range. Only few lucky ones may see 1Gig if they are out in the open on a mmWave channel . However this technology is aimed at the next years for autonomous driving and other new technologies, not so much for phones, and it will not have reception inside buildings (heck, holding the phone will most likely block that signal without external antenna, and it comes from an engineer here)
---------- Post added at 04:01 AM ---------- Previous post was at 04:00 AM ----------
Just make sure you allow 5G to connect. Phone might be set to LTE as fastest..
Click to expand...
Click to collapse
Thanks. I found out from another user, and by looking up in the service mode with a dialer code, that I was actually picking up 5G through T-Mobile band 66 connected somehow with band 2 or 71. So all was well. That speed I got was surely plenty fast for me.

elliwigy said:
no offense but engineers dont always know what theyre talking about.. tnobiles nationwide 5g network penetrates well through buildings and avg speed for it is less than 100mbps.. to get 1gbps needs to be on a different 5g network (i forget what its called) which will not be bationwide or have good penetration since it has low range and needs a lot of towers in a small area so will likely only b used in major cities so seeing as hes getting over 100mbps on tmo 5g is better than average and is definitely 5g
Click to expand...
Click to collapse
You just said what I claimed. The only 1GIG speeds are om mmWave bands, and like 90% of us seeing 5G icon are on the 600Mhz long wave that is 100M speeds, or the medium wave , again 100M speeds. I get 5G all day long, and never more than 200Mbit once, and 60-100Mbit otherwise. No mmWave where I am .. so we say the same thing.

BigE said:
You just said what I claimed. The only 1GIG speeds are om mmWave bands, and like 90% of us seeing 5G icon are on the 600Mhz long wave that is 100M speeds, or the medium wave , again 100M speeds. I get 5G all day long, and never more than 200Mbit once, and 60-100Mbit otherwise. No mmWave where I am .. so we say the same thing.
Click to expand...
Click to collapse
Adding speed tests

BigE said:
You just said what I claimed. The only 1GIG speeds are om mmWave bands, and like 90% of us seeing 5G icon are on the 600Mhz long wave that is 100M speeds, or the medium wave , again 100M speeds. I get 5G all day long, and never more than 200Mbit once, and 60-100Mbit otherwise. No mmWave where I am .. so we say the same thing.
Click to expand...
Click to collapse
Except that T-Mobile isn't implementing mmwave 5G, now or in the future. mmWave is only Verizon. And only Verizon's version of the S20 models has the radio and antennas for mmWave. (That's why the Verizon one has less memory - it needs many more antennas to make sure your fingers don't block the signal, and those antennas take up too much room.) So you will NEVER get mmWave 5G on your T-Mobile, Sprint, or unlocked S20. Even if you put a Verizon SIM in it.
T-Mobile's existing 5G is low band, and slow. They're migrating to Sprint's mid-band network which will be a lot faster than the existing network, but nowhere near Verizon's. But you'll be able to actually USE it, unlike Verizon's which will never exist outside of cities and major suburbs, and doesn't work worth ****e indoors unless you have a repeater.
mmWave is going to go down in history with WiMax as a bet on the wrong technology.

meyerweb said:
Except that T-Mobile isn't implementing mmwave 5G, now or in the future. mmWave is only Verizon. And only Verizon's version of the S20 models has the radio and antennas for mmWave. (That's why the Verizon one has less memory - it needs many more antennas to make sure your fingers don't block the signal, and those antennas take up too much room.) So you will NEVER get mmWave 5G on your T-Mobile, Sprint, or unlocked S20. Even if you put a Verizon SIM in it.
T-Mobile's existing 5G is low band, and slow. They're migrating to Sprint's mid-band network which will be a lot faster than the existing network, but nowhere near Verizon's. But you'll be able to actually USE it, unlike Verizon's which will never exist outside of cities and major suburbs, and doesn't work worth ****e indoors unless you have a repeater.
mmWave is going to go down in history with WiMax as a bet on the wrong technology.
Click to expand...
Click to collapse
Not sure where you heard all of that but it is incorrect. Tmobile is deploying mmWave and both the Tmobile and Sprint S20s will support it.
AT&T also uses mmWave and on the S20s as well.
https://www.t-mobile.com/content/da...ing-heroes/T-Mobile-5G-Factsheet-May-2020.pdf

S20 Ultra is the only one with mmwave afaik

ChongoDroid said:
S20 Ultra is the only one with mmwave afaik
Click to expand...
Click to collapse
The + has it as well. Verizon has a special version if the base S20 that supports it. But all the + and ultra versions support it no matter the carrier.

jasonamd said:
The + has it as well. Verizon has a special version if the base S20 that supports it. But all the + and ultra versions support it no matter the carrier.
Click to expand...
Click to collapse
Oh interesting, good to know.
I don't really care if I have it. Our LTE+ is roughly 200ish down and good coverage.

5G at this time is for the most part a marketing tool for manufacturers and service providers but lots of prospective users are buying into the hype. LTE is comparable in speed to low and midband 5G and in some cases even faster. Until mmWave is widely avaliable, which won't be anytime soon, 5G's biggest asset is it's marketing appeal. All hat, no cattle!

Question Cannot Connect to 3G/WCDMA

My 6 Pro (unlocked, rooted, January update) is unable to connect to my carrier's 3G network. My carrier is Xfinity Mobile (uses Verizon's network) and selecting 3G in settings or dialing *#*#4636#*#* and choosing WCDMA only, GSM/WCDMA preferred, etc results in my mobile connection being dropped. I can make and receive calls/texts just fine, and no problems connecting to their LTE or 5G networks. I am using the physical SIM from my old Pixel 3 XL, which had no problems connecting to their 3G network. Are there any fellow Pixel 6 Pro owners out there using Xfinity Mobile or Verizon as their carrier, and if so can you connect to 3G?

I just can tell you what happened in Germany, Operators disabled 3g networks. Maybe the same happens for you now

Aren't they in the process of killing off 3G, especially cdma? Very old tech.

I sure hope that's not what's happening, at least not until LTE coverage is on the same level as 3G. It just seems odd that 3G would be working fine one moment on my 3 XL (I only used 3G on it), then suddenly quit a few minutes later after transferring my SIM to my 6 Pro and getting it set up.

Face_Plant said:
I sure hope that's not what's happening, at least not until LTE coverage is on the same level as 3G. It just seems odd that 3G would be working fine one moment on my 3 XL (I only used 3G on it), then suddenly quit a few minutes later after transferring my SIM to my 6 Pro and getting it set up.
Click to expand...
Click to collapse
Where are you where LTE coverage isn't good? LTE is starting to be replaced by 5G and LTE is at least 7 or 8 years old by now. Do you live in a rural area?
The 3G Network Shutdown May Disable Your Phone (and More)
Mobile carriers are shutting down their 3G wireless networks to make room for new technology, but this change can have a big impact for anyone on older devices. Starting in 2022, companies like Verizon, AT&T and T-Mobile will phase out the older wireless network to accommodate expansion of 5G...
www.nbcboston.com
3G CDMA Network Shut off date set for December 31, 2022
We will turn off the last of the 3G CDMA network on December 31, 2022. Customers who still have a 3G device will continue to be strongly encouraged to make a change now.
www.verizon.com
I found both of those articles. And according to the second, Verizon is shutting down it's cdma network effective December 31, 2022.

rsbenedict said:
Where are you where LTE coverage isn't good? LTE is starting to be replaced by 5G and LTE is at least 7 or 8 years old by now. Do you live in a rural area?
Click to expand...
Click to collapse
At home coverage is fine, but when I head up into the mountains to snowboard like last weekend, then I'm screwed.
rsbenedict said:
I found both of those articles. And according to the second, Verizon is shutting down it's cdma network effective December 31, 2022.
Click to expand...
Click to collapse
Darn, I guess I'd better start bringing change for the pay phone when we go skiing/snowboarding...

I'm surprised there's any coverage at all in those places. 2g should work which is emergency services.

rsbenedict said:
I'm surprised there's any coverage at all in those places. 2g should work which is emergency services.
Click to expand...
Click to collapse
The small ski resorts on the east coast that I go to aren't too far from civilization. My 3 XL had no problems picking up 3G at these places.

Do you know if those towers are still doing 3g or they switched them to another frequency? I haven't been on 3g except when traveling in Europe.

Xfinity Mobile's 3G is not GSM/WCDMA but CDMA/EvDo because they're using the Verizon network. That's probably why it's not working. Try using that setting.

rsbenedict said:
Do you know if those towers are still doing 3g or they switched them to another frequency? I haven't been on 3g except when traveling in Europe.
Click to expand...
Click to collapse
I still need to contact my carrier and ask if/where they've started disabling 3G. I would not be shocked if they've started shutting it down near my house, but I would be surprised if the towers near the ski resorts were not still doing 3G. Driving through the small rural towns on the way to the resort is like going back in time 50-100 years. These areas seem like they're last on the list to get any form of infrastructure updates.
EtherealRemnant said:
Xfinity Mobile's 3G is not GSM/WCDMA but CDMA/EvDo because they're using the Verizon network. That's probably why it's not working. Try using that setting.
Click to expand...
Click to collapse
Still no luck. I suspect Verizon has started disabling their 3G network in my area, or uses a frequency not supported by this device.

Face_Plant said:
I still need to contact my carrier and ask if/where they've started disabling 3G. I would not be shocked if they've started shutting it down near my house, but I would be surprised if the towers near the ski resorts were not still doing 3G. Driving through the small rural towns on the way to the resort is like going back in time 50-100 years. These areas seem like they're last on the list to get any form of infrastructure updates.
Still no luck. I suspect Verizon has started disabling their 3G network in my area, or uses a frequency not supported by this device.
Click to expand...
Click to collapse
Yeah it should definitely be supported by the modem from the specs I've seen but it's probably being activated as CDMAless now that I think about it because there was an issue early on where chat functions didn't work right unless it was activated that way. There was a whole big uproar on reddit about it with the 5a and then it happened again with the 6/6 Pro.

Question 5g speed the same as 4g speeds

Hi folks. I have been using the device for a few months, but have not had great speeds on 5g. In fact, the 5g speed is the same as the 4g speed when I test.
I then took the SIM out and put it in the Poco F3 and 5g speed went from 10 to 130 (down).
Has anyone had similar experience with 5g connection? I am not sure if might be the Poco gets a stronger signal strength, or whether there are other issues. Both devices are compatible (and sold by) my carrier.

5G is very dependent on near direct line of sight to the tower, distant and available bandwidth. 5G may not be fully integrated where you are, but it will probably improve over time.
Many websites limit their bandwidth and they end up being the bottleneck even with 4G.
5G requires more energy so disable it if it gives you no speed benefit and boosts your battery life.
5G works well if you have a good signal and are transfering large amounts of data. Otherwise it's wasteful and not needed.

Yes, but Samsung and F3 tested in same location within 5 minutes of each other. Samsung got 10 down. F3 got 130 down. Same network. Same sim

Magic-design said:
Yes, but Samsung and F3 tested in same location within 5 minutes of each other. Samsung got 10 down. F3 got 130 down. Same network. Same sim
Click to expand...
Click to collapse
It's probably the local network...
4G works well for me so I deliberately blew off 5G. Lots of problems with 5G, still.
Plus my unlimited data 4G plan is grandfathered.