Develop Bugs

[Q] GSM Nexus poor signal performance since volume fix

Hi all
I've seen a few threads relating to LTE Nexus signal issues but none on the GSM.
I got annoyed with waiting for the OTA for the volume fix and 4.0.2 update so I flashed both of them manually.
Since the volume fix update I have noticed that my signal drops quite frequently during calls at my home and at my GF's house regularly dropping the call. Signal is normally 2-3 bars of edge. During a call this will drop to 1 bar with choppy audio and will drop the call almost everytime. Once the call has terminated the signal will then jump back to 3 bars allowing my to call again straight away.
My carrier is Vodafone UK, i'm wondering if anyone else is experinencing something similar? This only seemed to have happened after the volume fix update and 4.0.2 hasn't improved the situation. Before the fix was released my signal never dropped in my home but obviously the volumegate issue was apparent since i can only get GPRS/EDGE in my home.

+1
I have the same problem with my h3G galaxy nexus and it's pretty annoying.

What baseband do you have? Setting/about phone/baseband version... im on vodafone uk and had problems after a flash so flashed the KK6 version and now its fine.

Lol there are plenty of GSM poor signal threads on here. Including mine
Sent from my Galaxy Nexus using xda premium

dumb donkey said:
What baseband do you have? Setting/about phone/baseband version... im on vodafone uk and had problems after a flash so flashed the KK6 version and now its fine.
Click to expand...
Click to collapse
I have the KK1. Is there a way to flash the baseband without wiping the device?

I thought the signal problem was also lte. Anyone else expierecing the problem for the gsm unlocked and running on tmobile?

My signal keeps dropping every 30 minutes or so. Loosing the complete mobile network for about 10 seconds. It is really annoying.
Noone replied to my thread on the biggest German Android board. Started to think that I'm the only one until I found this thread.
Having tmobile.
Sent from my Galaxy Nexus using XDA App

I am on ARHD 2.1.2. With XXKK6 base and, when I make call the person on the other end can only hear me very faintly sometimes not at all. This from is 4.0.2. I had the same problem on custom 4.0.3. I don't know what to do next. I have tried going back to XXKK1, which didn't work so I went back to XXKK6. Anyone else with this issue?or suggestions on how to fix would be greatly appreciated!
Sent from my Galaxy Nexus using xda premium

AT&T
Having same problem with ATT. Switch of SIM did not help. About ready to send phone back! Any fix or help in future? Back to N1 now!

I'm on the XXK6 baseband.
I muxst of been searching wrong as I have found a couple of other threads with similar issues. I'm going to try a SIM swap next.

I am Italian too and use H3G network as Riku101.
When buy SGN with radio KK1 had little problems in signal, specially during a coversation without a strong signal.
All these problems was fixed with KK6, now SGN work really good, and the develop of software and radio versions are only at the begin...

I flashed KK6 radio through fastboot and now everything's fine
Sent from my Galaxy Nexus using XDA Premium App

Is anyone else having signal issues? Possible baseband update?

I recently purchased a samsung captivate glide and I have noticed very spotty coverage and dropped cell connections. Whenever I am indoors I cannot get a signal. The cell reception is very sensitive and constantly shows no connection. I was unsure if anyone else was having this problem?
I found another thread that had a loose sim card issue and attempted the fix but this did not work. I've also tried my sim in another phone in which i had no problem with cell reception. I've relashed the ROM and Kernal multiple times, rooted, unrooted, nothing seems to fix my reception issue... I was not sure i there was a baseband update or I just have faulty hardware. I'm eager to get this phone working at full capacity. How can I get it working properly?
Pertinent Info:
Android Version 2.3.5
Basband Version I927UCKI3
Kernal Version 2.6.36.3
Build Number GINGERBREAD.UCKI3
Carrier AT&T
Thanks in advance.

CommanderXander said:
spotty coverage and dropped cell connections
Click to expand...
Click to collapse
Sounds like status quo for AT&T
On a serious note; I am not having any such issues here in southern Louisiana where I usually don't get anything but Extended; rarely ever see 3G.

Been looking around for more information. I'm going to try and get a new sim and see what happens. Looks like i'm stuck for the time being :/

CommanderXander said:
I recently purchased a samsung captivate glide and I have noticed very spotty coverage and dropped cell connections. Whenever I am indoors I cannot get a signal. The cell reception is very sensitive and constantly shows no connection. I was unsure if anyone else was having this problem?
I found another thread that had a loose sim card issue and attempted the fix but this did not work. I've also tried my sim in another phone in which i had no problem with cell reception. I've relashed the ROM and Kernal multiple times, rooted, unrooted, nothing seems to fix my reception issue... I was not sure i there was a baseband update or I just have faulty hardware. I'm eager to get this phone working at full capacity. How can I get it working properly?
Pertinent Info:
Android Version 2.3.5
Basband Version I927UCKI3
Kernal Version 2.6.36.3
Build Number GINGERBREAD.UCKI3
Carrier AT&T
Thanks in advance.
Click to expand...
Click to collapse
Try pulling the battery cover and see if your SIM card is loose? I've advised for a couple different folks having signal issues the same thing, nobody else seems to have the same problem I did - using a smartphone SIM, it looked like the metal cage for the SIM card was a millimeter too large in width and height, I used some strong clear tape to hold the SIM in place and havent had any issues since...
HTH!
L4T
//Edit - I need to read the _ENTIRE_ post before replying - sorry, I'm fresh out of ideas if the loose SIM card wasn't the problem :\ -tidE\\

Ok I take no credit for this, but felt bad about the useless post above, crawled a couple more posts this morning, and it looks like mariol66 may have found another solution -
mariol66 said:
I kept losing data recently running osimood, went to network settings and changed carrier option from gsm/hspa to hspa only, I haven't disconnected yet
Sent from my SAMSUNG-SGH-I927R using xda premium
Click to expand...
Click to collapse
If that works for you, thank _him_, I'm just trying to get the word out
L4T

hi similar problem .have you got solved?
CommanderXander said:
I recently purchased a samsung captivate glide and I have noticed very spotty coverage and dropped cell connections. Whenever I am indoors I cannot get a signal. The cell reception is very sensitive and constantly shows no connection. I was unsure if anyone else was having this problem?
I found another thread that had a loose sim card issue and attempted the fix but this did not work. I've also tried my sim in another phone in which i had no problem with cell reception. I've relashed the ROM and Kernal multiple times, rooted, unrooted, nothing seems to fix my reception issue... I was not sure i there was a baseband update or I just have faulty hardware. I'm eager to get this phone working at full capacity. How can I get it working properly?
Pertinent Info:
Android Version 2.3.5
Basband Version I927UCKI3
Kernal Version 2.6.36.3
Build Number GINGERBREAD.UCKI3
Carrier AT&T
Thanks in advance. [/QUOTE
Recently i purchased from ebay imported to India.I got similar problem.Signal is consistently not good,even near the tower.Have anyone got similar problem solved?Please help me.
Click to expand...
Click to collapse

be more specific on your problem,is it like the person you quoted,your on 2.3.5 ect?

[Q] Upload speeds at 0.00

My download speeds are fine but my upload speeds are constantly stuck at 0. So I barely get use of any data, anyone know whats going on or how I can fix that? I'm on UGLA4 right now in Hawaii, before this I was on xxkk or something and had the same problem.

If you were to put your sim into another device and do a speed test what would your upload be?
Sent from my Galaxy Nexus using Tapatalk

I came from an sgs2 and sometimes had the same problem. Could it just be tmobile?

vibrant808 said:
I came from an sgs2 and sometimes had the same problem. Could it just be tmobile?
Click to expand...
Click to collapse
Ask for a new SIM or ask T-Mo if there are tower problems in your area. Considering you experienced it on both the old phone and this phone, you know its not a hardware problem.

martonikaj said:
Ask for a new SIM or ask T-Mo if there are tower problems in your area. Considering you experienced it on both the old phone and this phone, you know its not a hardware problem.
Click to expand...
Click to collapse
+1
Definitely a carrier issue in your area and not phone related in any way.

Ok well thats comforting, hopefully they'll fix it. I'll try for a new sim

Verizon Gnex - signal dropping

okay so i've had my verizon gnex for over a month now, and i have tried almost every set of radios on this thing and i cannot for the life of me get a reliable signal.
whenever i reset the phone, it comes up with good signal and 4G every time. but after a while of watching the signal icon, i notice that it stops downloading and will only try uploading. after about 10-20 seconds of that, it flat out drops all signal and goes to no bars with no data. now depending on what radio im trying, it will take between 1 and 10 minutes to regain signal and data again.
I've spend hours and hours searching the web for a fix for this... i've tried different roms, kernels, radios, setting my minimum CPU to 700mhz, etc and have not found a way to get this thing to hold signal 100% of the time. my girlfriend has the rezound and she gets very good signal everywhere we go, and so do i, until it randomly drops then regains it.
It seems like the signal falls asleep then has to reboot or something.
I've read that people with similar issues have exchanged their devices for another gnex through verizon and will get one that works great, while others say they've had 3 or 4 and all of them act the same.
I would exchange this in a heartbeat if i knew the next one i got actually worked, but if it didnt i would hate the fact that i was now stuck with a refurb when i did have a virgin device that worked just as good.
any help would be greatly appreciated.
Thanks in advance!!
P.S. Radios I've Tried:
4.0.1 EK02-LTE EK01-CDMA
4.0.2 EK02-LTE EK05-CDMA
4.0.3 EK04-LTE EK06-CDMA
4.0.4 FA02-LTE FA02-CDMA
4.0.4 FC05-LTE FC04-CDMA

Your running Verizon correct???
There are official 4.0.4 radios that I have been using and hand offs and signals are better and faster and more efficient on the battery because it uses the stronger 4G for larger task and would drop to a low 4G speed for energy saving and then shoot up when needed most.
Would you like the radio file???
---------- Post added at 08:24 AM ---------- Previous post was at 08:10 AM ----------
Also it's not the phone or your coverage. It's your sim card. Verizon have just started their sim card program and they admit that it is flawed and should improve as the years go by.
So your sim card is always looking for a 4g signal. But for some reason it is flawed. There I'd a comment about it (read em) that talks about it.

Official 4.0.4 radio?
Which radios do you have? I thought the FC04 / FC05 were the newest and supposed to be the official? If you have newer could you send them to me please.

DLD511 said:
Your running Verizon yes???
There are official 4.0.4 radios from that I have used and hand offs and signals are better and faster and more efficient on the battery because it uses the higher for larger task and would drop to a low 4g speed for energy saving and then shoot up when needed most.
Would you like the radio file???
---------- Post added at 08:24 AM ---------- Previous post was at 08:10 AM ----------
Also it's not the phone or your coverage. It's your sim card. Verizon have just started their sum card program and they admit that it is flawed and should improve as the years go by.
So your sin card is always looking for a 4g signal. But for some reason it is flawed. There I'd a comment about it (read em) that talks about it.
Click to expand...
Click to collapse
I would like the radios as well, if possible. I'm currently running 4.0.4 (I was under the impression it was the 'official' Verizon release) which is on I515.10 V.FC04/I515.FC05. Are your radios different? I've heard the 4.0.4 that was released in February has better radios than the one that was released recently, but I haven't checked it out myself.

http://androidcommunity.com/verizon-galaxy-nexus-4-0-4-radios-improve-3g4g-download-20120502/The ones I'm are i515.09 VFC04/ i515.FC05. I think they have different codings or something. Because the one im using gives me 32mbps on maxed 4g bars after I flashed the radios in the link. the one I would get stock from AOKP on Maxed 4G bars 23mbps.
So yeah the ones in the link are better for me. You just gotta do speed tests and experiment for a week or two. I'm satisfied with the radios in the link.
Here's the link:
http://androidcommunity.com/verizon-galaxy-nexus-4-0-4-radios-improve-3g4g-download-20120502/
Remember, they will exactly the same in about phone. They are just coded slightly different I guess of the official Verizon Radios. But I'm pretty sure Verizon will have the radios a little bit different once the OTA is finally released.
(It's a galaxy nexus with a Sense 4 theme. So ignore the sense status bar!)
Here's the picture of my average result.

Get a replacement phone. That type of drop shouldn't be happening.

No don't get a replacement. Had the same data dropping problems.
After I flashed the new radio files in the link, I stopped getting data drops.
It's just the Sim card that could be doing that if it continues after flashing the radios in the link I provided. So get a new sim card. Not the phone.
Sent from my Galaxy Nexus using XDA

xm0nkey said:
Get a replacement phone. That type of drop shouldn't be happening.
Click to expand...
Click to collapse
+1
I went through 4 GN's. The first 3 dropped signal to varying degrees. Radios or a new SIM card didn't fix it. The fourth was finally a keeper and *never* drops. Get a replacement.

I have a new gnex headed my way after going through the same rigamarole as the OP with the radios. The lady at the Verizon store wanted to switch my sim card, I said I wanted a new phone. She has one headed my way, but said to call for a new phone if that one didn't work and to complain to google for making bad software and not releasing the updates (as if google didn't want to push 4.0.4 down). I asked her, "So you're telling me I bought a $ 600 brick?" "Yep."
My phone would drop signal randomly for random periods of time throughout the day since the beginning. I loved my HTC Incredible 2, now I'm kinda sad I broke it.
My issue was signal DROP, not quality, which should not be happening and seems to be a hardware issue.

No. It's all Nexus phones are fine. It's just the radio files. And I haven't suffered any drops since I've flashed the radios.
Sent from my Galaxy Nexus using XDA

So i ended up sending it in (reluctantly) and got a new one mailed.
I've had my replacement for about a week now and not 1 dropped call, no data problems, nothing!!
I unlocked, rooted, and flashed AOKP M5, and ugraded to the latest official radios FC04 and FC05.
I am one damn happy customer with my VZW GNEX, its by far the greatest device that I've ever owned.
and as for the people looking for radios, feel free to directly download fully flashable zips of every Radio i own. these are not updates, but the full radio. so feel free to download to your SD card, and flash it in your custom recovery.
here are the links! (dont forget to hit the thanks button )
4.0.1 Radios EK02, EK01
4.0.2 Radios EK02, EK05
4.0.3 Radios EK04, EK06
4.0.4 Radios FA02, FA02 (old)
4.0.4 Radios FC05, FC04 (new)

Hello I have kind of just been lurking on this post and I suffer from the same problem. My first gnex was perfect I never knew anything about data drops until someone stole my original and I got a replacement. Now I'm finding myself flashing a new radio every week. I really hope these 4.0.4. Radios work.
Sent from my Galaxy Nexus using xda premium

Grandadd said:
Hello I have kind of just been lurking on this post and I suffer from the same problem. My first gnex was perfect I never knew anything about data drops until someone stole my original and I got a replacement. Now I'm finding myself flashing a new radio every week. I really hope these 4.0.4. Radios work.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
If your phone is like my original, the new radios will not help at all.
I recommend talking to verizon and demand that you have a new phone sent.
Verizon told me that they had no records of this phone having data drop issues, which is a complete load of bullcrap. Just make sure you tell them that you have tried multiple hard resets and that it doesnt do a thing. also, if they bring up the upcoming 4.0.4 update, tell them you just want a new device, as this update will not fix your problem.
Also, make sure to revert to complete stock before you send in your current one.
Good luck.

This was my biggest fear....leaving the iPhone on Sprint and coming to the Galaxy Nexus on Verizon and getting worse signal then Sprint (never thought that possible...lol).
However, I got the GNex on VZW and the signal was 'decent' for Cocoa Beach....but when I rooted and upgraded to 4.04 with the new radios that came along with it, my signal get a lot better. Not had one dropped call or signal since purchase.
Even got decent 4G in Orlando....and 4G is coming to Cocoa this year

I'm on my 4th replacement...not getting 20 drops a day but around 5...should I still exchange?
Sent from my Galaxy Nexus using Tapatalk 2

subsoniic said:
I'm on my 4th replacement...not getting 20 drops a day but around 5...should I still exchange?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
i would see what kind of signal other verizon phones are getting in your area. if you both have equally bad signal, i would say its probably just your area. but if you have 1 bar when they have 5, i would get another one.
something to consider is switching to a different phone. i believe (someone correct me if im wrong), that you can switch to a different handset after receiving 3 faulty devices.

subsoniic said:
I'm on my 4th replacement...not getting 20 drops a day but around 5...should I still exchange?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I would exchange it still. I got my new phone and it is the way it should be. Went back to AOKP b37 w/ 4.0.4 radios and I couldn't ask for a better phone. No amount of flashing will correct the phone. I told the clerk I had factory reset with the same issues, I think that was what got me the new phone.

DLD511 said:
No don't get a replacement. Had the same data dropping problems.
After I flashed the new radio files in the link, I stopped getting data drops.
It's just the Sim card that could be doing that if it continues after flashing the radios in the link I provided. So get a new sim card. Not the phone.
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Sorry but this is wrong.
My first phone had a faulty radio/antenna. A hardware defect. The replacements I've gotten since have all worked fine on 4G. Same location, same SIM card. Unfortunately the screens are all terrible compared to my first one.
I have tried the new radios on my first phone and it didn't fix a damn thing. Changing SIM cards won't do anything, although Verizon might make you go through that step.
If someone is having the exact problem described in the OP, they need to get a replacement.

xm0nkey said:
Sorry but this is wrong.
My first phone had a faulty radio/antenna. A hardware defect. The replacements I've gotten since have all worked fine on 4G. Same location, same SIM card. Unfortunately the screens are all terrible compared to my first one.
I have tried the new radios on my first phone and it didn't fix a damn thing. Changing SIM cards won't do anything, although Verizon might make you go through that step.
If someone is having the exact problem described in the OP, they need to get a replacement.
Click to expand...
Click to collapse
I had the exact same problem as the OP and all I did was a complete wipe from my recovery (including dalvik) and flashed the newest CM9 Nightly (06/03/2012). I haven't had a dropped signal since that, and it's been over 12 hours now and I've been on my phone almost non-stop.
Please try a full wipe and re-flash before you get a Verizon Refurbished phone. It worked in my case and it has to work in others.

Verizon Wireless GNex here...
Zero signal issues in Brevard County, Florida.
Brilliant 4G in Orlando as well

[Baseband/Radio] DVLF1 (Telstra GSM)

Attached below are fastboot and CWM images for a new radio that I just extracted from the Telstra 4.01 -> 4.04 OTA that was released yesterday.
The radio is DVLF1 (I9250TDVLF1) and has not been seen before.
This radio is best suited to 850mhz 3G networks.
cwm-radio-i9250t-dvlf1.zip MD5:4F1EEE9C598D554EBD1F23CDB510BB72
radio-maguro-i9250t-dvlf1.img.zip MD5: 8CC3D43867076EE028BF758BD7B37F94
Only been running it for an hour so far and seems OK, but will post further feedback after a few days.

But why? Just go Yakju... Telstra suck at updates

t.saddington said:
But why? Just go Yakju... Telstra suck at updates
Click to expand...
Click to collapse
It's a Telstra radio, not the Telstra ROM. I've been yakju since day 1.. I flashed Telstra's ROM just to grab the new radio. DVKK6 has been awesome on Telstra, and the JB XXLF1 radio was terrible. Telstra users looking for the best radio may wish to try it, that is why.

Thanks for doing this!

So, just to confirm.. you're using this just fine with Jelly Bean?

Friends .. My baseband is i9250XXKK6 ... If I install this radio... is that worth... sorry... till today I dint flash any radio... is there any way to get my current radio backed up ?
sent from jElly Belly NeXus PrimE

sam razzy said:
Friends .. My baseband is i9250XXKK6 ... If I install this radio... is that worth... sorry... till today I dint flash any radio... is there any way to get my current radio backed up ?
Click to expand...
Click to collapse
You can find a backup here. Keep in mind that unless your carrier uses the 850MHz frequency, the stock JB radio might be better for you.
http://forum.xda-developers.com/showthread.php?t=1405345

Jimmy Flip said:
You can find a backup here. Keep in mind that unless your carrier uses the 850MHz frequency, the stock JB radio might be better for you.
http://forum.xda-developers.com/showthread.php?t=1405345
Click to expand...
Click to collapse
And you seem to be right, I'm on T-mobile here in the U.S. using AWS 1700/2100Mhz and this radio just plain sucks for me, it refuses to pick up 3G for me in my room where I get a good 3G signal, so I flashed back the stock Jelly Bean Radio XXFL1

Jimmy Flip said:
You can find a backup here. Keep in mind that unless your carrier uses the 850MHz frequency, the stock JB radio might be better for you.
Click to expand...
Click to collapse
Telstra's network uses 850mhz so should be fine on that band. Personally I'd only recommend this radio for Australian Telstra users.
Edit: just realized i misread your post and you said the same thing.
Sent from my Galaxy Nexus using Tapatalk 2

Jimmy Flip said:
You can find a backup here. Keep in mind that unless your carrier uses the 850MHz frequency, the stock JB radio might be better for you.
http://forum.xda-developers.com/showthread.php?t=1405345
Click to expand...
Click to collapse
I never flashed a stock Jb other then custom... it came with 4.0.2 ... I didn't try to flash any baseband... is that stock ICS baseband or stock Jb..? I donno custom Jb whether updates baseband radio....
sent from jElly Belly NeXus PrimE

Works well on Rogers.
Sent from my Galaxy Nexus using Tapatalk 2

Can you please also pull and post the RIL, it makes sense to have them matched..you can find it in
system\vendor\lib\libsec-ril.so
Much appreciated.

ghosty7 said:
Can you please also pull and post the RIL, it makes sense to have them matched..you can find it in
system\vendor\lib\libsec-ril.so
Much appreciated.
Click to expand...
Click to collapse
Yeah no worries. I had already ripped it but hadn't gotten around to posting it yet. Here's the RIL zipped, and also a flashable CWM zip.
MD5 for libsec-ril.so: C5F26C3D9AEB859CB7F8B17F1DFA45B2
MD5 for the CWM zip: 652F2DACB2D755840ADE251C32321C81
Based on that MD5, it looks like it's the same RIL as XXLA2.

xyzulu said:
So, just to confirm.. you're using this just fine with Jelly Bean?
Click to expand...
Click to collapse
Works fine with ICS and JB.

I'm using a Galaxy Nexus GSM, with Telstra in Australia and I get fantastic signal, will this just improve it? I don't really feel it neccesary to flash, any more info?

MatMew said:
I'm using a Galaxy Nexus GSM, with Telstra in Australia and I get fantastic signal, will this just improve it? I don't really feel it neccesary to flash, any more info?
Click to expand...
Click to collapse
The original Telstra radio DVKK6 is awesome on 850mhz and the jury is still out on whether this new radio is any better, so if you're happy with that.. I don't see any reason to change.
From 24 hours use, this new radio seems very similar to DVKK6 and is performing well.. but it's not like there is a massive performance difference.

living in Panama on Cable and Wireless (850),this radio is a big jump. Going from -85db to -53db, after flashing and reboot.
Thank you very much

I just installed this radio and now I can't send SMS .....but I'm not 100% sure I didn't mess with a setting with 4636....can someone help with setting etc? Telstra in Melbourne, if that makes a difference.

Back to XXLF1 for me...
Gave this a try on 4.1.1 (Bigxie) but the reception on 3G was at least 10dBm lower (97+ vs 80-) throughout my tests, and it never left "3G" mode. Never switched to "H." Transfer rates were much slower, too - barely 1Mbps down, 100K up. Minutes later, 1.8Mbps down and 1M up on XXLF1.
It DID boot in the correct mode though - WCDMA Preferred.
The "International" JB radio/RIL works better for me; never had an issue with it, so I'm back on it.
Note: I did change the RIL to match the radio, so maybe if someone else tries this radio on JB they should keep the JB RIL and see if it makes a difference. I am in a congested cell, btw.
YMMV.

aircon2000 said:
I just installed this radio and now I can't send SMS .....but I'm not 100% sure I didn't mess with a setting with 4636....can someone help with setting etc? Telstra in Melbourne, if that makes a difference.
Click to expand...
Click to collapse
I suspect you've changed something in the service menu. Your SMSC might be incorrect. Try the fix below.
Telstra's SMSC is+61418706700 which must be entered in PDU format:07911614786007F0
- Open dialer
- Type *#*#4636#*#* then click on 'phone information', then scroll down to 'SMSC'
- click 'refresh'. If it is not 07911614786007F0, type it in and click on 'update'.
- Reboot.
Source: http://forum.cyanogenmod.com