yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Nexus] yiannisthegreek:
***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://xdaforums.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://xdaforums.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,
[Samsung Galaxy Nexus] s2d4:
are you using your carrier supplied radio?
[Samsung Galaxy Nexus] yiannisthegreek:
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.
[Samsung Galaxy Nexus] jonnyg1097:
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.
[Samsung Galaxy Nexus] yiannisthegreek:
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?
[Samsung Galaxy Nexus] jonnyg1097:
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)
[Samsung Galaxy Nexus] yiannisthegreek:
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...
[Samsung Galaxy Nexus] ARchamps:
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.
[Samsung Galaxy Nexus] grantith:
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.
[Samsung Galaxy Nexus] yiannisthegreek:
Hmmmmm... I ONLY seem to get these signal drops on 4.0.3... Weird... You have a GSM device right? Not CDMA - LTE?
[Samsung Galaxy Nexus] yiannisthegreek:
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://xdaforums.com/showthread.php?t=1478685
[Samsung Galaxy Nexus] mattymac:
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.
[Samsung Galaxy Nexus] CB620:
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.
[Samsung Galaxy Nexus] yiannisthegreek:
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...
[Samsung Galaxy Nexus] mattymac:
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.
[Samsung Galaxy Nexus] yiannisthegreek:
Yes... That is normal...
[Samsung Galaxy Nexus] jonnyg1097:
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.
[Samsung Galaxy Nexus] yiannisthegreek:
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...
[Samsung Galaxy Nexus] finch8423:
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).
[Samsung Galaxy Nexus] yiannisthegreek:
What is the name of this network signal app? Developers name and what does it do exactly?
[Samsung Galaxy Nexus] yiannisthegreek:
So... I flashed the MoDaCo 4.0.4 ROM that you can find in the Development thread and is created by Paul Obrien (much thanks to Paul for his work). It has been made to work on our GSM GNEX devices as well... again THANKS PAUL.

Unfortunately... I am STILL experiencing these signal losses and again... It only seems that my device will keep signal on my original STOCK ROM (4.0.1 here in Canada) or if on Android Revolution HD (4.0.2).

I AM GOING NUTS!!! Lol... Please keep posting here and hopefully someone will find a solution to this seemingly SOFTWARE related issue...
[Samsung Galaxy Nexus] yiannisthegreek:
Hmmmmm... Just a thought... I have noticed that all of the ROMS that I seem to have these signal issues with all have one thing in common... They all have replacement launchers in them such as Nova Launcher or Launcher 2 and the one thing that my stock ROM and the Android Revolution HD ROMS have in common is that they have the STOCK launcher.

Its a shot in the dark but... is it possible that it is these non-stock launchers may be causing the issue?

It may sound dumb but I am trying to start a process of elimination.

Post your thoughts...
[Samsung Galaxy Nexus] RadevMartin:
I don't think the launcher is causing this problem..

By the way, +1 for the signal drop with 4.0.3+ roms..
[Samsung Galaxy Nexus] joshnichols189:
No.. it is not the launcher. This happens to me about once a day and it doesn't really bother me as it lasts literally three seconds. I'm using the Japanese radio on T-Mobile
[Samsung Galaxy Nexus] danielvc:
Do you have wifi enabled? That caused issues with my network connection.
[Samsung Galaxy Nexus] nayr1991:
Im experiencing this quite frequently on the aokp 4.0.3 rom with stock radio (parallel imported phone, unsure of origin) on the 2degrees network in NZ.

EDIT: This is XXKK1 radio
[Samsung Galaxy Nexus] yiannisthegreek:
Ok... So... I have something else new to try. Some nice people in the LTE and GSM 4.0.4 ROM thread by Paul Obrien from Modaco have advised that seemingly by using the FuGuMod Kernel that they have been able to eliminate these signal loss issues.

Now Im not sure how a kernel plays a roll in this but there are a couple of people there who say that by using this kernel with any 4.0.3+ ROM that they no longer experience the problem. See this link and the related threads are on pages 7 and 8 of the topic as answers to my questions.

http://xdaforums.com/showthread.php?t=1487056&page=7

Unfortunately, I am at work and my GNEX is at home and I wont be able to try this until I get home but if someone here would like to give it a go and report your results it would be very appreciated...
[Samsung Galaxy Nexus] yiannisthegreek:
I thought about this as well but my signal is dropping off whether I have wifi on or not...
[Samsung Galaxy Nexus] aimetti:
when you get the signal drop , does yours have a small x on it?
[Samsung Galaxy Nexus] yiannisthegreek:
It depends on what ROM I have on my device at the time. For example... When I am on the FoxHound 4.0.3 ROM there is no x but when I flashed the 4.0.4 ROM (GSM varient) then there was a small x. Either way... My signal is lost for 5 - 6 seconds then randomly comes back...
[Samsung Galaxy Nexus] yiannisthegreek:
Has anyone had the chance to test the FuGuMod kernel I mentioned a few posts ago as of yet? Im still at work for 4 more hours so I wont get a chance to test till I get home...
[Samsung Galaxy Nexus] yiannisthegreek:
I guess thats a no?... Lol. Well If no one posts here on trying the FuGuMod Kernel by the time I get home then stay tuned as I will be trying it and I will post my findings here...

If you do try it then I wish you luck and if not then... WISH ME LUCK!!! :)
[Samsung Galaxy Nexus] yiannisthegreek:
Im about to flash FuGuMod Kernel... I will immediately post results... Wish me luck!!!

***EDIT*** I have been running the combo of FoxHound ROM v1 AOSP 4.0.3, FuGuMod Kernel 4.0.3 version and UGKL1 radio now for almost half an hour and believe it or not... I have NOT lost signal once as of yet!!! I will continue to monitor and will post again in a bit...

***EDIT 2*** So I have been continuing to monitor the device and I have had the bars go grey BUT it still has not actually DROPPED the signal as of yet. I live in a basement suite apartment so my reception down here is not the greatest and that could attest as to why I lose bars (even though my SGSII has between 2 and 3 bars on it) but again... it still has NOT lost signal completely since flashing FuGuMod Kernel!!! Im getting excited!!! I will continue to monitor as I play with it more and will post again soon...

***EDIT 3*** Ladies and Gentlemen... I believe we have a WINNER!!! I do not want to say that it is solved just yet but its been over an hour now and NO DROPPED SIGNAL!!! I recommend that you give this a try and post your results as they may vary but so far for me the FuGuMod Kernel has fixed my issue!!! I will continue to post my findings here for all of you.

***EDIT 4*** Well... It has now been over 3 hours and I have still NOT had my signal drop off!!! I would like to know other peoples findings on this as well so please post them but I am gonna go out on a limb (at least for now) and say that with this kernel the issue is SOLVED!!!

Everyone... I have been painstakingly searching for an answer to this problem so please be kind and if I have helped you solve your issue with any of the info posted here then please press the "Thanks" button... :-)
[Samsung Galaxy Nexus] melloyellowkc:
I'm experiencing issues with connecting to my data/net not really losing signal?

My HSPA signal can detect but cannot receive any data.

Going back to stock - my data network works fine.

when i flash any roms = data does not work..

Roms i've tried; APEX, Gummynex and stock 4.0.2? (stock works with data)

Been trying to figure this out for the past 3 hours now...

nothing works but going back to stock.

Tried a few radios and none work.

two radios i've tried; radio_i9250_UGKL1 & radio-maguro-i9250xxkk6.img

im on 4.0.3 bought the nexus from Virgin mobile but using rogers wireless sim card (not sure if this matters) I never got an OTA update either.

Virgin mobile in Canada is GSM right? and not CDMA? :(

Here is a picture. my H/HSPA/3G signal is ALWAYS GREYED out.
[Samsung Galaxy Nexus] yiannisthegreek:
Hi.

My bars grey out like that every once in a while too but sooner or later they come back blue. When you are trying to transmit data, do you see the little arrows blinking both up and down?

This is a bit different then the issue I and others are having but may be somewhat related... Try flashing the FuGuMod Kernel and MAKE SURE its the right kernel for your ROM ie: 4.0.2 ROM = 4.0.2 Kernel, etc...

You are more than welcome to post back here your findings and any other questions you may have... GOOD LUCK and let me know if it works for you.
[Samsung Galaxy Nexus] melloyellowkc:
I only get the UP arrow. never ever the down arrow. its so frustrating.

also when flashing a kernel, do i need to do it at the same time when i flash a rom + GAPPS + Kernel or can i just flash a kernal after the rom has been flashed?

just tried flashing the kernel...doesnt work. still greyed out.

This is retarded!
[Samsung Galaxy Nexus] yiannisthegreek:
The link is in post #1 of the thread in the edit at the top. Also... I recommend that you do the following as well and test it...

On the dialer enter *#*#4636#*#* to enter service menu,

Press phone information

About half way down the page you will see something that says GSM/CDMA auto (PRL). Press it and from the drop down menu choose GSM auto (PRL) and see if that helps anything. I personally am using the WCDMA ONLY option. Then just exit out by pressing the home soft key.

Our phones are GSM only and NOT CDMA so this change may help your situation but I again recommend trying the FuGuMod Kernel. Note CDMA and WCDMA are NOT the same thing and WCDMA is related to GSM services such as our devices are.

And you CAN flash a ROM followed by the Kernel right after in recovery or flash one then reboot and then go back to recovery and flash the other although that would take some time...

Hope that helps...
[Samsung Galaxy Nexus] yiannisthegreek:
Are you in Ontario by chance? I was told that Ontario is currently experiencing an issue with the 3G/HSPA network. If you are in Ontario then this may be why you have this issue.
[Samsung Galaxy Nexus] yiannisthegreek:
Bump... Come on peoples... Post your results here so I can see if this has also helped you as well with this issue.

I am at work today with my GNEX and for the FIRST time, I have 4 solid blue bars of signal with 3G/H as well and am on the FoxHound v1. 4.0.3 AOSP ROM!!!

Let me know if this is working for you guys as well!!!
[Samsung Galaxy Nexus] slydog43:
I have been having random signal drops since I unlocked my GSM Nexus and flashing a custom ROM and kernel. I have even tried the latest FuGuMod Kernel, but my signal was grey when I woke up this morning. I'm now trying a MoDaCo 4.0.4 rom along with the latest BootLoader. So far so good, but that always seems to start out good. Only time will tell, just plain sucks loosing signal everyday at seemingly random times. Going back to stock if this does not work.
[Samsung Galaxy Nexus] yiannisthegreek:
Hi... Thanks for your input.

When you say that your signal was grey was it completely LOST or were the bars just greyed out and you still had the little 3G or H above them?

My signal since flashing FuGuMod will do that still too when I am at home (in a basement suite) but it will no longer actually DROP the signal. I am now at work and I have between 3 and 4 bars of BLUE signal both GSM and DATA and am on a custom 4.0.3 ROM and this is the first time my device has been usable since running any ROM higher than 4.0.2.

I have also set my network signal to WCDMA ONLY by going into the service menu and changing it. You can find the instructions I posted on it a few messages back. Try that as well.

I hope it works for you!!!
[Samsung Galaxy Nexus] slydog43:
I dont think there was an H above the grey bars (I'm on GSM t-Mobile) So far so good on the MoDaCo 4.0.4 ROM. I briefly see it grey when I turn it on, but it goes blue very quickly after that. Losing signal is very strange since I have lost signal (wifi and GSM bars were grey) and checked that mobile data was turned off, and I was able to turn it back on and everything was good to go. I have also seen grey bars and I checked Mobile data and it was checked on, so I tried to toggle it, but no go.

Keeping my fingers crossed with 4.0.4 (IMM30B), newest bootloader, Franciso 16.2 kernel, and XXKL1 radio.
[Samsung Galaxy Nexus] firstsearchblue:
No go for MoDaCo

Just tried your kernel recommendation with the Beta 1 of MoDaCo 4.0.4 but i was bouncing between 3 bars of H and all bars grey (along with an x)

Going to give FoxHound a shot now.
[Samsung Galaxy Nexus] yiannisthegreek:
I know the MoDaCo ROM says that it is working with ALL 4.0.3 kernels but I wonder if because the FuGuMod does not have a 4.0.4 kernel if thats why you are still having the issue on that ROM? Again... My experience with the FuGuMod Kernel and the FoxHound 4.0.3 ROM has been fantastic to say the least...

Also... maybe it has something to do with the sequence you flash the items as well?... For example...

I already had the ROM on my SD Card, then...

I D/L the Kernel and put it on my SD Card, then...

I entered recovery using Rom Manager, then...

I flashed the ROM and when it said it was done I IMMEDIATELY flashed the kernel and voila... My GNEX has been working like a champ ever since...
[Samsung Galaxy Nexus] Kukussi:
Only had that problem on FoxHound 1.0. So I'm back on a 4.0.2 ROM. And It didn't matter what radio I was using either, calls would drop once in a while.
[Samsung Galaxy Nexus] yiannisthegreek:
Try and flash the FuGuMod 4.0.3 Kernel with the FoxHound ROM. AS I said... Since I flashed FuGuMod Kernel my GNEX has been running like a CHAMP on FoxHound v1.0.

Again... Results may vary but for me it worked / is working AWESOME.

I really do wish everyone else good luck as well as I want to see this issue get cleared up.
[Samsung Galaxy Nexus] melloyellowkc:
i tried flashing your kernel. didnt work.

however i am in ontario canada but my stock root, + unlock bootloader ICS works with data. just not with roms.. strange.
[Samsung Galaxy Nexus] yiannisthegreek:
Can you tell me what steps you took when flashing? What sequence did you flash the ROM and Kernel in?
[Samsung Galaxy Nexus] CB620:
Using the kk6 radio now. Seems to be giving me the best performance and I have flashed almost every radio and have also fell victim to random signal lost. Flashed the radio about 5 hours ago and it is performing well.
[Samsung Galaxy Nexus] slydog43:
After flashing so many kernels and roms, I tried a 4.0.4 Rom from MoDaCo (thanks PaulOBrien ) and it actually has worked perfectly (In radio terms). I have not lost signal once since I have flashed it (Only been about 36 hours though). I have 700Min 1350 Max Franco 16.2 kernel (Turtle Scaling with SetCPU), xxkl1 Radio, and Apex .2 beta launcher. I did a complete erase (twice) and flashed rom, then kernel, reboot, install all my programs, than all is great. This is such a strange bug in that not all phones are acting alike.
[Samsung Galaxy Nexus] yiannisthegreek:
I agree... very strange indeed but I'm glad to see that you seem to have found a fix...
[Samsung Galaxy Nexus] reNeglect:
Been experiencing signal problems since friday out of the blue.. after doing the change the GSM Auto in the service menu and flashing fugumod kernel signal seems better going to monitor it now for a few days..

Update: Signal still strong but... the *#*#4636#*#* GSM AUTO (PRL) doesnt seem to stick... when i check it, its back on GSM/CDMA auto (PRL)
[Samsung Galaxy Nexus] yiannisthegreek:
Mine was like that too but i did it a couple times in a row and finally it seemed to stick. I use WCDMA only option which is a GSM option (seems confusing I know) and it seems to be the best for me. I am using UGKL1 radio.

If this works for you in the long run, please click thanks... :-)
[Samsung Galaxy Nexus] reNeglect:
Nope same as before now... and the gsm auto wont stick no matter how many times
[Samsung Galaxy Nexus] CompletelyNumb:
Mine did this until I flashed the XXKK6 radio. Worked first try after that.
[Samsung Galaxy Nexus] firstsearchblue:
Foxhound 1 + FuguMod + UGKL1 + Rogers = Flawless

I've been running yiannisthegreek's recommendation for a couple days now and it's working perfectly. I don't think my phone has ever run this smoothly and yesterday was the first time (had the device for about a month) that I went over 24 hours on one charge (pretty heavy usage)

Here are my steps (no surprises here, but just to make sure we all get the same results)

Put foxhoud 1 rom zip + FuguMod kernel zip+ UGKL1 radio zip onto my phone's internal sd

Rebooted to Recovery - CWM (did all of the following steps from CWM)

Took a backup of my current rom (came from revolution hd)

Wiped data/factory reset

Wiped Cache

Wiped Dalvik

Flashed Foxhound Rom

Flashed FuguMod Kernel

Flashed UGKL1 Radio

Restarted
[Samsung Galaxy Nexus] yiannisthegreek:
I'm glad to see and hear that you are having good results.

Those are EXACTLY the steps I used as well. As you said... no surprise but I agree about getting the same results.
[Samsung Galaxy Nexus] yiannisthegreek:
Do you mean that you have started to have your signal drop again or those settings just won't stick?
[Samsung Galaxy Nexus] reNeglect:
Settings wont stick and signal drops all over again... =/ Dont want to use Foxhound cause im using AOKP with density hack...madly in love with AOKP might give foxhound a try...
[Samsung Galaxy Nexus] cingkrab:
I believe it's certain combinations of ROMs/kernels that behave this way. For example, I am using AOKP milestone 3 with KL1 radio, and with franco kernel 16.1 or 16.2 I would randomly lose signal. However, I have never lost signal with leankernel, versions 1.09 and 1.10.
[Samsung Galaxy Nexus] reNeglect:
Weird since i have flash each kernel and then flash kk6,kk7,kl1,the japanese one, and a few other ones and still the same results... might try leankernel again, ive got nothing to lose anyways...