Develop Bugs

Help with GSM 3G/2G signal dropping

Well i have a big problem, i'm using the DINC2 over a GSM network with the 900Mhz freq for 3G.
I had the 2.3.4 then i downgraded the rom to 2.3.3 using the method posted in the development section.
Then installed CM7 and everything was perfect until the moment i made a nandroid backup, after that the handset went crazy, first dropping the 3G until the point that it drops the signal completely not even gsm.
I have tried several radio version and the problem persists, i'am willing to go back to official 2.3.4 if the problem is solved but again since i'm not in the US i cannot upgrade the device via OTA.
I need help i cannot use it without 3G.
EDIT: I managed to get it to work stable at 2G, but whenever it makes the handover to 3G it drops the signal completely and return back to 2G, it works stable if i leave it in GSM only.

Have you found anything out? This us exactly what my phone is doing. Installed touch pros beta 3 ICS and had a sporatic signal (like it'd be fine and for no reason I'd have no service). Yesterday I installed beta 6 and everythings fine until I got it set up and did a nandroid. I am using the 722 radio, but saw a little about a 1111 radio...have u tried that radio?

Touchpros ics rom does not officially support GSM, it works in general but there is no support for it. This means that you can use ics but there are multiple issues, like the radio dying when you restart your phone.
So you can use it but remember it is not finished

yurilebbie said:
Touchpros ics rom does not officially support GSM, it works in general but there is no support for it. This means that you can use ics but there are multiple issues, like the radio dying when you restart your phone.
So you can use it but remember it is not finished
Click to expand...
Click to collapse
I just read Touchpro won't be supporting this ROM any longer, do you know of this is true? Or will there be further development with it? I really like it so far but not sure I can deal with this radio issue...thanks for the input!
Sent from my Incredible 2 using XDA App

forgiven90 said:
Have you found anything out? This us exactly what my phone is doing. Installed touch pros beta 3 ICS and had a sporatic signal (like it'd be fine and for no reason I'd have no service). Yesterday I installed beta 6 and everythings fine until I got it set up and did a nandroid. I am using the 722 radio, but saw a little about a 1111 radio...have u tried that radio?
Click to expand...
Click to collapse
Tried that radio but is the same bro.
Sent from my U8800Pro using xda premium

GSM - GNEX Signal Drop Solution - Working ROM,Radio,Kernel combos. POST HERE...

***EDIT*** I believe that I have found the solution to this issue (at least for me) by flashing the FuGuMod Kernel as advised to do by 2 users (jetrii and slyydrr) who advised me of this in the following thread here http://forum.xda-developers.com/showthread.php?t=1487056 on pages 7 and 8 respectively.
This fix may NOT work for you but I can say that it has worked for me. Please see post #33 (and onward) in this thread.
I have painstakingly been trying to find a solution to this issue and it SEEMS as if I have FINALLY found one so if I have helped you in any way then I ask that you please press the "Thanks" button and please visit the thread above and say thanks to jetrii and slyydrr as well. I also recommend that if this works for you that you go to the FuGuMod thread here http://forum.xda-developers.com/showthread.php?t=1438417 and pay tribute to nikademus for his kernel!!! I know I sure have... Also... Make SURE that you flash the correct kernel version for your ROM ie: 4.0.3 ROM = 4.0.3 Kernel, etc...
Thanks...
Hi everyone,
I have decided to start a fresh thread here as I have seen (and replied to) many threads regarding people with the GSM version of the GNEX (like I have) that are suffering from random signal loss of both data and GSM services for apparently NO REASON.
If you are also experiencing these issues I ask that you please post them here so that they are easy to follow and I also ask for anyone with ANY answsers to please post them here as well. Also... Please post what firmware you are running and any steps you have tried to fix this issue be them a failure or a success. I have done the following...
I am currently on the FoxHound v1.0 AOSP 4.0.3 firmware and experience these random signal drops. I have flashed NUMEROUS radios / modems to try and fix this with no success. I had been told by someone that the issue MAY be a BUG in the 4.0.3 AOSP ROMS but I have a hard time believing this as some people do NOT experience these same issues while on 4.0.3 ROMS.
What did work was to flash to the Android Revolution 4.0.2 ROM and on this I do NOT experience these random drops which COULD mean that the problem DOES lie in the AOSP builds of 4.0.3 but again... I have a difficult time believing this but it could be true. Also... Stock firmware (4.0.1) for me here in Canada does not experience these random signal losses either.
This is very annoying as I want to run the 4.0.3 custom ROMS for their customization capabilities, etc but I cannot keep my device in a USABLE state when on 4.0.3 so I have to go back to my trusty SGSII.
Again, please post here to voice your concerns and opinions on this and perhaps SOMEONE will be able to find us a solution.
Thanks,

are you using your carrier supplied radio?

s2d4 said:
are you using your carrier supplied radio?
Click to expand...
Click to collapse
Yup. Im on UGKL1 which is the radio that shipped on my device. I have also tried other radios (XXKL1, UGKK7, XXKG6, etc) as I mentioned as well and I still experience the same issue and others have mentioned the same things as well with no successes.

There was this one time that I had lost signal randomly (while on stock unmodified out of the box ICS) but I was able to get it back with a factory reset. After that it never happened to me again.

jonnyg1097 said:
There was this one time that I had lost signal randomly (while on stock unmodified out of the box ICS) but I was able to get it back with a factory reset. After that it never happened to me again.
Click to expand...
Click to collapse
Thanks for the comment. May I ask what Radio your device has on it? Are you running any sort of custom ROM now? If so, what are you running?

Right now the radio is KK6 (im on stock yakju 4.0.2 now) but at the time it was what came with the phone (shipped from Rogers)

jonnyg1097 said:
Right now the radio is KK6 (im on stock yakju 4.0.2 now) but at the time it was what came with the phone (shipped from Rogers)
Click to expand...
Click to collapse
Hmmmm... Interesting... You got an OTA update to 4.0.2? I have seen other posts that people here in Canada are complaining that they have not received ANY OTA updates at all... When did you get this?
Since I have been on a custom ROM I have not seen this update obviously...

I'm on GSM with Rogers as well. I haven't noticed any significant signal drops with the exception of my basement (no cell phones get signal there - its a fortress lol). I am on 4.0.3 as well. I have read that the 4.0.4 has improved radio... so it may be worth looking into. I saw a WIP 4.0.4 GSM Rom here.

I've been experiencing this as well. I'll have a great signal, then suddenly it totally disappears, and after a few seconds the signal comes back. It's even happened during voice calls as well. I experienced this on the stock device (4.0.1). I'm now using the GummyNex rom on 4.0.3 (w/ a stock radio), and I'm still experiencing these random signal loses. (T-mobile USA in NYC, btw).
It's not a constant problem, but it happens a few times a day. enough to be an mild annoyance.

grantith said:
I've been experiencing this as well. I'll have a great signal, then suddenly it totally disappears, and after a few seconds the signal comes back. It's even happened during voice calls as well. I experienced this on the stock device (4.0.1). I'm now using the GummyNex rom on 4.0.3 (w/ a stock radio), and I'm still experiencing these random signal loses. (T-mobile USA in NYC, btw).
It's not a constant problem, but it happens a few times a day. enough to be an mild annoyance.
Click to expand...
Click to collapse
Hmmmmm... I ONLY seem to get these signal drops on 4.0.3... Weird... You have a GSM device right? Not CDMA - LTE?

I found something new to try when I get home but if anyone may want to try it now and post your results it would be very helpful and appreciated.
This is a radio from the Japanese variant of the GNEX and most people who have tried it have had good success with it... See the link below...
http://forum.xda-developers.com/showthread.php?t=1478685

I THINK I am experiencing this. My phone keeps going from H+ to 3G non stop at the top. How can you tell if your signal is being dropped? (sorry new to this) I've seen posts with a network screen? showing connection but I can't seem to find this.

Haven't had any issues as far as that. There were times when I was using the browser and it said network error but everything still worked.
Sent from my Galaxy Nexus using XDA Premium App

mattymac said:
I THINK I am experiencing this. My phone keeps going from H+ to 3G non stop at the top. How can you tell if your signal is being dropped? (sorry new to this) I've seen posts with a network screen? showing connection but I can't seem to find this.
Click to expand...
Click to collapse
You will notice because the signal bars icon will go "completely blank" and for example... If you are on your lockscreen and you can see the name of your provider...It will disappear completely for a couple of seconds and then come back...

No I guess I am not experiencing this. I'm not exactly sure what the difference between H+ and 3G is but my phone seems to stay in 3G until it transfers data, when its transferring data, it goes into H+, then back into 3G. Maybe this is normal. I was just curious because I did flash Yakju and the radios when i bought it.

mattymac said:
No I guess I am not experiencing this. I'm not exactly sure what the difference between H+ and 3G is but my phone seems to stay in 3G until it transfers data, when its transferring data, it goes into H+, then back into 3G. Maybe this is normal. I was just curious because I did flash Yakju and the radios when i bought it.
Click to expand...
Click to collapse
Yes... That is normal...

yiannisthegreek said:
Hmmmm... Interesting... You got an OTA update to 4.0.2? I have seen other posts that people here in Canada are complaining that they have not received ANY OTA updates at all... When did you get this?
Since I have been on a custom ROM I have not seen this update obviously...
Click to expand...
Click to collapse
Well, when I first flashed 4.0.1 yakju I got notifications of being able to upgrade it OTA. However, at the time I must of messed something up when I flashed it because the updates werent successful when I went to update it. So I got fed up with it and I flashed 4.0.2 manually via fastboot.

yiannisthegreek said:
I found something new to try when I get home but if anyone may want to try it now and post your results it would be very helpful and appreciated.
This is a radio from the Japanese variant of the GNEX and most people who have tried it have had good success with it... See the link below...
http://forum.xda-developers.com/showthread.php?t=1478685
Click to expand...
Click to collapse
So I flashed this radio and I get SOMEWHAT better stability but it only accesses the EDGE network and NO 3G/H... Guess this is a no go too...

HD Rom, Latest build.
Radio - XXKK6
Had the stock radio with the HD Rom, and thought that my random lost connections on market were due to my not flashing the recommended radio. Flashed the recommended radio (current), and still experienced them. Signal is better, and oddly enough voice doesn't get lost. Phone doesn't show that there is no signal, in fact it is at 3 bars on H.
Edit: I use a regional carrier, that doesn't list APN settings. By leaving APN type blank, I seemed to have solved the problem. Also dramatically increased the signal strength (Using Network Signal app).

finch8423 said:
HD Rom, Latest build.
Radio - XXKK6
Had the stock radio with the HD Rom, and thought that my random lost connections on market were due to my not flashing the recommended radio. Flashed the recommended radio (current), and still experienced them. Signal is better, and oddly enough voice doesn't get lost. Phone doesn't show that there is no signal, in fact it is at 3 bars on H.
Edit: I use a regional carrier, that doesn't list APN settings. By leaving APN type blank, I seemed to have solved the problem. Also dramatically increased the signal strength (Using Network Signal app).
Click to expand...
Click to collapse
What is the name of this network signal app? Developers name and what does it do exactly?

[Q] after update wifi doesn't seem to work the same

I searched and didnt find anything that seemed to be the same topic.
I updated to 4.0.4, MoDaCo custom lr11 (lMM30B) from the factory ota 4.0.2 because it sucked. Now everything seems to work great but the wifi distance seems to have dropped. In places where my iphone and this phone on .2 had 3 to 4 bars on wifi the .4 now struggles to hold 1 bar. In my room with the router about 8 feet away I get 1 or 2 bars and only get all 4 when its within 2 feet. Any free wifi spot that I have saved and used to use perfectly is pretty much gone now. I wouldn't make a big deal of it but the area I am usually in most of the day is extended for me so I don't have 3 or 4g access.
Anyone know of a fix.
ty in advance

What baseband are you using? Most if not all custom roms exclude the baseband so you will need to update that manually.
Sent from my Galaxy Nexus using Tapatalk

same problem here! my radio signal, too, sucks a lot more compared to when i was on stock.
all started happening after rooting and flashing to aokp.

salivaman said:
same problem here! my radio signal, too, sucks a lot more compared to when i was on stock.
all started happening after rooting and flashing to aokp.
Click to expand...
Click to collapse
You need to change your baseband to a later version. There are issues if you have the old one while running a rom based on 4.0.3 or above.
Sent from my Galaxy Nexus using Tapatalk

yeah i have flashed to the latest one but the problem still persists on my aokp.
strangely i decided to flash a new rom which the bugless beast and so far it's working good.

Sorry, Baseband is
l515.09 V.EK05 / L515.EK02

I see the rom update Ir12 out there so I think I will update to it. I see a change log for a previous patch that addressed the signal stregth. Will post back if any changes. Hopefully will fix it.

salivaman said:
yeah i have flashed to the latest one but the problem still persists on my aokp.
strangely i decided to flash a new rom which the bugless beast and so far it's working good.
Click to expand...
Click to collapse
next time try flashing a different Kernel if your having issues and have tried flashing a different baseband. Faux or trinity seem to be best for me using AOKP

Nothing worked...
Tried several things from roms to just the radios and I couldnt get anything to upgrade. Guess I'll wait until .5 or something.

Major lost of signal that I can't fix

Hey guys,
I know about the 4.0.4 signal issue but mine is a little bit serious i think....
Since updated to 4.0.4 I'm loosing signal about 1 to 2 time per minutes. Even the new update to fix it didn't. I then installed AOKP+Latest baseband+Franco Kernel milestone 2 AND I STILL EXPERIENCE THAT ISSUE. My friend is set up the same way and don't have that problem.
Thing is, one I get the signal, if i place a call I can talk for hours without loosing the signal so if it was hardware related I think it would happen even on the line....(maybe i'm wrong on this one)
I'm on Rogers Wireless in canada.
I've tried also going into the *#*#4636#*#* menu and trying different prl WCDMA, GSM auto PRL, GSM Only, etc... still no difference.....
I'm attaching a screenshot of the nosignal app log....
Anyone have an idea?
Btw i also tried oc to 700mhz+ and issue is still hapening. Next step is a wall and some velocity....
Sent from my Galaxy Nexus using XDA

Also, I don't know if it could be related but I'm suscribed to Rogers One Number. (I can use a PC to place calls using my phone number. Network can also transfer call to my pc if phone is off and things like that). It is.similar to google voice i think
Sent from my Galaxy Nexus using XDA

What radio?
I had problems with my data not registering/holding a connection so I'd have to recycle the radio by airplane off/on just to initiate it, and when it did, the rates/latency was all over the place, reverted back to a kk6 radio and it resolved the issue.

My radio/baseband is I9250UGLC1 and I use it in Canada with Rogers.
I tried already to remove battery, remove and put back the sim card, clear cache, clear dalvjc, flash rom few times......nothing is working
Sent from my Galaxy Nexus using XDA

Give the UGLA4 radio a try, personally I found it to be the best of the bunch. The xx series of radios were awful for me.

Try to revert to a stock rom... I don't mean unroot just flash a stock rom. This made my problem go away

Already revert to canadian stock rom but the problem remain.....
Any rom or radio I flash do the same problem.....also tried the simcard of my friend to see if it was the sim but the bug mas also happening with his sim....
Sent from my Galaxy Nexus using XDA

I don't know if it could me that but the first time i flashed 4.0.4 stock rom from google code website i tried to flash by mistake the version for nexus s. G tool abirted because it was not the same thing. Then i flashed the right one.
Could it has caused the bug? If so, any idea to solve?
Btw is someone know hot to try to sent it for repair?
Sent from my Galaxy Nexus using XDA

Anyone still have drop signal and drop data with 4.0.4 ?

Anyone still have drop signal and drop data with 4.0.4 ?
I have use following components more then 48hrs, and don't have drop signal and drop data any more.
Radio/Baseband：
cwm-radio-i9250-xxla2 (latest radio from Google)
Kernel：
franco.Kernel-r158 (best kernel on market)
ROM：
aokp_maguro_build-35 (latest aokp rom)

I was getting lots of drops after the update from 76D to 76I which I wasn't getting before the update I had to turn the phone of and on again to get the signal back. I was also getting reboots almost daily.
I downloaded the 76I full ROM from Google here, flashed it and now all is fine No re-boots, no signal drops.
oh - all stock except rooted and unlocked

It only drops Wi-Fi signal and sometimes HSPA as well when I'm using Bluetooth. Otherwise IMM76I has been rock solid. Love the new camera!
Sent from my Galaxy Nexus using XDA

Have you folks checked out the radio dump thread here on XDA.
http://forum.XDA-developers.com/showthread.php?t=1405345
I was having problem with my radio until I flashed UGLC1

diggmc said:
Have you folks checked out the radio dump thread here on XDA.
http://forum.XDA-developers.com/showthread.php?t=1405345
I was having problem with my radio until I flashed UGLC1
Click to expand...
Click to collapse
Same for me. I had the odd data drop on UGKL1. After the radio upgrade to UGLC1, i'm all good.

I've had one so with XXLA2 but then didn't have one with UGLC1. I flashed back to the first radio and so far has been going strong.
Sent from my Galaxy Nexus using XDA

hki_peter said:
Anyone still have drop signal and drop data with 4.0.4 ?
I have use following components more then 48hrs, and don't have drop signal and drop data any more.
Radio/Baseband：
cwm-radio-i9250-xxla2 (latest radio from Google)
Kernel：
franco.Kernel-r158 (best kernel on market)
ROM：
aokp_maguro_build-35 (latest aokp rom)
Click to expand...
Click to collapse
Updated :
After using above components for week, still have drop data problem and battery running very fast, e.g. battery fully charge 100% and then standby 8 hrs, after that battery going down to 80%, used 20% for 8 hrs standby
now rollback to Android 4.0.3 aokp-maguro-milestone-4 !

I was using aokp 35 and milestone 5 with several different kernels and modems and having data drop issues. I also tried Gummy with different kernels and modems and still had data drops.
I have since switched to CM9 nightlies in the thread by imfloflo and using the kernel and modem that comes with it and all is fine now.
I miss some of the features in aokp but at least i can send an MMS without having to reboot now.