Develop Bugs

[Q] 3g connection will not stay up

So for the past 2 weeks I am having issues that basically render my phone unusable for 99% of the reasons I bought it. Posted a thread before but I think it got lost when the forums were having some instability around that time...
My 3g connection will NOT stay up. I did nothing to provoke this. No system changes. The sequence of events:
-Went out of the country with my phone on airplane mode the whole time
-Got back, a day or two later had an incorrect timestamp on my incoming SMS (they were showing up +3 hours)
-Called customer service, she activated a tester phone and confirmed that it was a system-side issue on the incoming SMS (somehow they were getting a timestamp from the system where my number is located, in Eastern time, while I am actually located in Pacific nowadays).
-Put in a trouble ticket after 2 hours trying to solve the SMS issue over the phone.
-Next day, my 3g connection begins dropping CONSTANTLY. As it stands, it won't stay connected more than 30 seconds. It will cycle to 1x sometimes, and then drop to a basic-service-only.
-Tried reinstalling my ROM several times to no effect.
-Started experiencing some very strange noises in SOME calls, such as it sounding like a chainsaw when the other person is talking. Happens very sporadically.
-Just today I found some instructions here for correcting my NAM settings, which were actually messed up as it turns out, but didn't fix anything.
At this point I actually have the phone unrooted and back to factory default everything, with no change. I've got a warranty replacement phone coming in shortly, but I'd still rather keep this one if I'm able to.
Is there anything I haven't tried that might be the case on my end? Has anyone seen this problem before? Has my phone antenna simply gone belly-up, or is this something that might still be fixed at some deep system-setting level, or with further calls to tech support?

So... I guess that's a no?

Gornul said:
So... I guess that's a no?
Click to expand...
Click to collapse
Had the same problem with my phone before I rooted my phone and starting to apply ROM's. I havent had a problem since. But when I had that problem, I would just keep turning on and off the 3g and it would stay for a while. It was just a quick fix but it worked. Off subject how did you unroot your phone and put it back top stock?

My phone just started doing this this yesterday. Whenever I reboot it, it'll come up, switch to 1x mode. After a while it'll try to switch to 3g mode, fail, switch to no service, and then either go to just basic voice with no data or back into 1x mode. I've tried updating the radio, switching roms, dialing *228, nothing seems to help.

Jager, instructions on a full reset are right here under section 6. I'm not sure why it's struck out. Definitely suggest poking around more first.
New phone's in and still having major connectivity issues. The SMS timestamp remains as it was, and I can't get (steadily) more than like 35kbps. I'll occasionally bump to 500kbps for a quick spurt, and then my connection will drop entirely and struggle to get back up to 35kbps. My wife's Incredible works perfectly fine in the exact same locations, too, so this is something that absolutely has to be on Verizon's side, specific to my line.

Me too
My phone has also been experiencing the loss of 3G service as well. I checked my wife's Moto Droid 1 and it was also having difficulty connecting as well. I called Verizon and they were absolutely no help whatsoever. I am either getting nothing or 1X in places where I have always had 3G. This is very frustrating. I have flashed 3 different ROMs (all of which have worked fine in the past), but the result always seems to be the same. Anyone else out there with this issue?

khukman said:
My phone has also been experiencing the loss of 3G service as well. I checked my wife's Moto Droid 1 and it was also having difficulty connecting as well. I called Verizon and they were absolutely no help whatsoever. I am either getting nothing or 1X in places where I have always had 3G. This is very frustrating. I have flashed 3 different ROMs (all of which have worked fine in the past), but the result always seems to be the same. Anyone else out there with this issue?
Click to expand...
Click to collapse
Someone help! Same issue! I can no longer get data....PERIOD. I have to stay connected to wifi, or I don't get my emails, internet, etc.
Need to fix this!

3G connection issues
I just got off the phone with Verizon Tech support. They are CONVINCED that it is an issue with my phone (and my wife's). Gee, how can 2 different phones, from different manufacturers have the SAME issue at the SAME time? Hmm, doesn't sound very promising to me.
They are sending out a replacement for my wife's Moto Droid to see if it is a phone issue (she has been having other issues with it anyway...). If hers improves, I may send mine back, but I don't want to have to unroot, etc. Plus I like the Super-Amoled screen . When did trouble-shooting turn to "replace the hardware first" ???
Regards!

This happened to me recently as well and was fixed with a factory reset.
I am rooted with S-off, so a normal factory reset via Menu->Settings->SD & Phone Storage-> Factory Data Reset didn't go well for me. Not sure of the exact reason, but I just followed the instructions in this post to restore: http://forum.xda-developers.com/showthread.php?t=786436
Programming your phone by dialing *228 is necessary afterwards as well, as khukman states below. Thanks for pointing that out.
After I completed this, I redid root, restored my nandroid backup and didn't lose a thing, plus my 3G is working again!
*A fair warning: Doing this formats the internal storage (emmc). I'd recommend backing up any photos, music, etc that you have stored on emmc before doing this!
Sent from my Droid Incredible

So I tried the above suggestion about going back to completely stock 2.2 and I have the same results. On one hand, I am now back to S-ON and stock Froyo, so if I want to send it back to Verizon, they are none the wiser that I was rooted, but on the other hand I STILL HAVE CRAPPY 3G SERVICE!!! Man, I feel like I'm on AT&T or something LOL! I'll keep an eye on it for the rest of the day and see how it does and report back.

Back in 3G!!!!!
After getting back to stock Froyo, as described in the previous post, I was still unable to get a good 3G lock. I read in another thread where someone did a 'Factory Data Reset' and it took care of it. When you do this, you have to dial #228 and let it program your phone as it did the first time when you got it. Once I did this, I had (and still have) a solid lock on 3G like I used to. I think that it was one of the Sprint ROMs that screwed this up in the first place (the OP states that you have to backup your PRLs, etc. before installing, then re-install them afterwards). I can't remember if I did this or not, so it may be my fault after all, but regardless, I am thrilled that once again I have a connected smartphone thanks to the resources contained on XDA!
Regards!

I myself am now rocking a refurb that has no trouble at all... A complete revert to stock did absolutely nothing to resolve my trouble.
Though I didn't try doing a factory reset AFTER reinstalling the stock ROM. Hmm. Maybe there was something in the cache still. I suppose in my case I'll never really know, but I'm glad you guys were able to resolve the situation with your original hardware.

Gornul said:
I myself am now rocking a refurb that has no trouble at all... A complete revert to stock did absolutely nothing to resolve my trouble.
Though I didn't try doing a factory reset AFTER reinstalling the stock ROM. Hmm. Maybe there was something in the cache still. I suppose in my case I'll never really know, but I'm glad you guys were able to resolve the situation with your original hardware.
Click to expand...
Click to collapse
Did you follow the steps in the thread I posted above? Doing that should completely format and re-image your phone. Much more than just installing a stock ROM. I myself tried so many different variations of ROMs, radios, etc and nothing did the trick until I followed that thread.
Sent from my Droid Incredible

Sprint Galaxy Nexus - Modem Stability Issues

So, I figured I'd share since I couldn't find much information on the forums about this.
I recently, within last few weeks, started having issues with the modem on my GNex.
I had been running a ROM derived from AOSP Jelly Bean without issue, except the modem seemed to get poor signal quality.
I tried to upgrade the modem once the official Sprint JB release of FH05 started spreading.
At some point afterwards it seemed the modem would inexplicably start to die periodically... (By die I mean the status would change to searching and/or not connected and the status icon would change to no service icon). I could sometimes trigger life back in at times by toggling CDMA/LTE or CDMA Only options or the data enabled options or rebooting...
I went through a period of continually trying to reflash the various radios FD02, FC12, FH05... all in an attempt to get stability.
I had persistent issues even trying to flash the radios. The LTE radio would always flash fine, but the CDMA radio would often hang in flashboot forcing me to sever connection and restart.
This never seemed to fix the issue and I began to think I might either have bad flash memory on the radio partition or there was a problem with the radio hardware causing this issue.
I then remembered I had dropped the phone on concrete and it landed on the modem side of the phone... phone seemed fine besides a few new dings, but operated ok. I considered maybe this had something to do with the state of things.
Last night I took my phone back off using these instructions: http://www.ifixit.com/Teardown/Samsung-Galaxy-Nexus-Teardown/7182/1
I basically just jostled the internals a bit hoping to fix maybe a simple misalignment...
It has been a solid 12 hours and everything seems to be running strong.
This is purely speculation, but given that I haven't been able to consistently replicate any scenario other than it not working... I am hoping this is the fix.
I hope it might help someone else, or someone else with a similar problem can confirm or provide alternate conclusion.
I am currently running:
ROM:
http://forum.xda-developers.com/showthread.php?t=1801942
LTE and CDMA FH05:
http://forum.xda-developers.com/showthread.php?t=1620036#2
TWRP 2.2:
http://teamw.in/project/twrp2/92

shadowspires said:
So, I figured I'd share since I couldn't find much information on the forums about this.
I recently, within last few weeks, started having issues with the modem on my GNex.
I had been running a ROM derived from AOSP Jelly Bean without issue, except the modem seemed to get poor signal quality.
I tried to upgrade the modem once the official Sprint JB release of FH05 started spreading.
At some point afterwards it seemed the modem would inexplicably start to die periodically... (By die I mean the status would change to searching and/or not connected and the status icon would change to no service icon). I could sometimes trigger life back in at times by toggling CDMA/LTE or CDMA Only options or the data enabled options or rebooting...
I went through a period of continually trying to reflash the various radios FD02, FC12, FH05... all in an attempt to get stability.
I had persistent issues even trying to flash the radios. The LTE radio would always flash fine, but the CDMA radio would often hang in flashboot forcing me to sever connection and restart.
This never seemed to fix the issue and I began to think I might either have bad flash memory on the radio partition or there was a problem with the radio hardware causing this issue.
I then remembered I had dropped the phone on concrete and it landed on the modem side of the phone... phone seemed fine besides a few new dings, but operated ok. I considered maybe this had something to do with the state of things.
Last night I took my phone back off using these instructions: http://www.ifixit.com/Teardown/Samsung-Galaxy-Nexus-Teardown/7182/1
I basically just jostled the internals a bit hoping to fix maybe a simple misalignment...
It has been a solid 12 hours and everything seems to be running strong.
This is purely speculation, but given that I haven't been able to consistently replicate any scenario other than it not working... I am hoping this is the fix.
I hope it might help someone else, or someone else with a similar problem can confirm or provide alternate conclusion.
I am currently running:
ROM:
http://forum.xda-developers.com/showthread.php?t=1801942
LTE and CDMA FH05:
http://forum.xda-developers.com/showthread.php?t=1620036#2
TWRP 2.2:
http://teamw.in/project/twrp2/92
Click to expand...
Click to collapse
So you just took apart and reassembled and that got it working?

Maybe
xvanwilderx said:
So you just took apart and reassembled and that got it working?
Click to expand...
Click to collapse
Tried to sell phone on ebay because the wifi adapter was showing issues with range... I bought another and it was clear that the range of the older phone was having issues...
Tried to sell on ebay and buyer couldn't activate... just sent back and I can't get it to accept a flash at all... maybe trying the taking apart trick again...
Crazy

[Q] LTE Trouble with ATT after root/flash

Let me begin by saying that I've looked far and wide for answers, and solutions, but haven't found any that work yet. So I'd like to go through the process of what happened, and what my fix is really going to be.
- ATT GSIII Stock 4.1.2, was rooted using the CF Auto-Root Method.
- We installed CWM Touch recovery, and flashed the rooted stock image.
- This is immediately where we started seeing issues with LTE, etc. in a known-good LTE area. We were getting "G" and "E" from that point on.
- From here, I noticed that we had lost the IMEI (was set to 0), so I followed the process to get that restored using QPST.
- After the IMEI was back to normal, nothing got better. LTE wouldn't show up, etc.
- I checked into the APNs, and there were several, so I removed the ones not needed, and kept only the one that was correct. STILL no LTE.
- At this point, since we were going to AOSP anyway, we decided to flash Slim 4.2.2 Build 8. Had the same issues, so I verified APN, Network Modes, IMEI, etc. Everything is there that needs to be.
- Once in a WHILE, we get LTE in a known-good area for a few minutes, but most of the time it's "G" or "E". Calls drop, sound is bad, etc. We tried several of the baseband modems with no desired results.
What part of this process causes this to happen to the ATT GSIII? Is it the root method? Because we had this issues so early in the rooting/flashing process, I would think whatever happened there is still an issue with the phone.
The IMEI is correct, so I don't think that can be it.. or can it? Would calls, texts, data work with an IMEI that isn't correct?
Network Mode is correct: LTE/GSM/WCDMA
CDMA Subscription is set for NV (I know this is RUIM/SIM in VZW GSIIIs). Is NV Correct? I've seen some posts about fixing NV Data.. might this be the issue?
I really have nothing else I can think of. I've been a rooted-flasher for a few years now, and root a lot of phones. I had issues with my d2vzw along the lines of the issue I'm having with the d2att phone, but I was able to fix those fairly easily.
Now I've been reading an I know these issues occur when you flash a 4.2 AOSP build.. so maybe that's when it got really bad for us? But agian, I've gone through all of the check points, and it looks as if everything is in order.
I'm flat out of ideas..
Help? I'm willing to donate, compensate, etc. And if you happen to be in NYC, could even pay someone to help fix.
Many many thanks and internets ahead of time.

I am having the same problem as yours. Been a flashaholic since the beginning of this year. Tried various custom ROMs (CM, AOKP, PA, Rootbox, Revolt, PACman, JellyBAM, Carbon, Slimbean, LiquidSmooth; you name it). Currently I'm using (and happy with) Dirty Unicorn, however earlier last month I noticed that I have not been receiving LTE. Even worse, I can't get a better data speed than EDGE. I have to mention though that I have unlocked my phone and switched to T-Mobile. I'm not sure when I started experiencing this problem since I am very sure that I had LTE on my phone two months earlier. Like you, I also had to restore my IMEI after it turned to 0. I've tried going back to stock and unrooted but that also did not help. I really hope we can find what's wrong with our phones.

[Q] Data Connetion

Hello all!
I am having constant data issues all day where I go to use an app that needs it, it says that no data connection can be found or something. I turn the radio off, turn it back on and then it works. It's a good work-around but it does get very annoying. I've tried multiple 4.4.2 roms but no avail. I tried a different kernel but I couldn't even use the phone. Any ideas?

Same for me; I'm rooted now but it happened before root and after the JB ota updates. Annoying but otherwise I love this phone
I think this has been a known issue since ICS (I could be wrong though).
If anyone knows a fix that would be cool (I have GSM google play gnex)

My issues started late last night, lost data connection and it didn't come back. On my way home, it connected then lost again at home. Went to Verizon today and they couldn't figure it out, said possibly the radio is taking a crap.
On my way to work, it connects then gone. I tried flashing the radio, pulled battery, booted without sim, formatted cache and delvic. I have tried everything and think it's the end of the line for it
I've been rooted since the day I got it and had the issue once a while back but it straightened out and has been great since.

Certain CyanogenMod ROMs have trouble with the Network Modes sticking. Which carrier are you using? For my carrier, I had to have the correct APNs set to get 4G and MMS working. It might be that this is the problem in most cases, especially when the phone switches between 4G and 3G in spotty areas.

[Q]Please Serious tech help! cellular data radio unresponsive

Look i normally dont ask for to much help ive been around a bit know more then the average bear. I also fix hardware.
My problem is my data radio will not switch on from any attempt:
Attempted solutions:
Dialed
*#*#4636#*#*
Will not switch on from that screen
Did the obvious and switched on and off airplane mode
Replaced the entire build.prop file with a very stock build.prop after flashing stock jelly bean
Repeated steps for all stock firmware
Newest attempt wiped the entire system partition through recovery forcefully bricking the phone. I have now flashed the original stock e980 stock 10p tot file still no luck
My phone is completely unlocked fully rooted.
I've replaced the data permission files.
And I know its not the SIM card because the SIM card is in the phone I'm using right now which is an LG g2 unlocked which is for sale by the way.
And if it is a hardware problem I have not found any related video or thread to help me find an exchange where the radio is on this thing
Help me please if anybody has any idea?

Cool no help, hey moderator can u move this to thread that may get more help that would be awesome

i came looking around here because my g pros radio stopped working sometime last night while i was asleep and was about to make a thread asking for help, but seeing as how you haven't got much i doubt i would either. but ill give you a little info on mine, will it help you out at all? not sure. but i know it might make me feel a little better.
I flashed Vanir 4.4.4 last week coming from Beanstalk 4.4.4 cause beanstalk was getting buggy from all the ugly mods i subjected it to. so all was well with Vanir till i woke up this morning and had no service, no calls, no network, AND even if i connected to a wifi network it seemed that i couldn't get any data from it. I tried flashing madmacks modem cause who knows, maybe thatll help, but it diddnt. So then i flashed a different kernel and changed TCP protocols cause who ****ing knows, but it did nothing. THEN i restored my older Beanstalk 4.4.4 backup sure that it would work flawlessly but guess what, same problem. Now that im back on Beanstalk i went to the "Network Operators" option under "Mobile network settings" and selected ATT, which is my service provider, i can now make calls and texts but still no data, when i did this on Vanir it did not help. So i started messing with my "preferred network type" and realized i have data on 2G, but not 3G or LTE. Im gonna take a wild guess and say that maybe if you flash your phone back to 100% stock your radio should start working again, as much as i dont want to, i might end up doing that as well.
tl:dr
similar problem, i dont really know ****, easiest option = go back to stock, hope it works.

@Fant0m3 @alb-o
Have you guys checked if your rom shows your imei?
I have had this problem twice. My IMEI disappeared and I don't know how.
Your symptoms match.
If that's the case you could take it to a repair shop and they'll fix it in a minute or two. Or, you can check around xda.

thats a good point, when i was looking around XDA earlier i saw a few mentions of it but diddnt see anything very specific and was late for class so diddnt have time to look for too long. strangely enough mine actually started working normally again after i kept switching from 2G to 3G to LTE, which is great. but if i would've known that info earlier i could have checked if my IMEI disappeared while my radio still wasn't working, i assume it probably did.
after searching around more i found this thread that talks about it and how to prevent it:
http://forum.xda-developers.com/showthread.php?t=1857054
thanks for the help g0at1, hopefully this helps out the OP if he hasn't already fixed the problem, or anyone else that comes across this.

nope
I've flashed back stock numerous times even flashed other versions such as e988 and back again if u dint know how to do that just change your build number in your build prop file...I've tried everything I am downt to antenna cable SIM reader or cell radio.. If radio I might as well just give up cause I can't find one for sell anywhere...I'm not so pressed as I'm using the LG g2 and it's so fast stable and a bit slimmer I think I'm gonna keep it but I would like to fix it and sell it though...... My symptoms are mentioned and all tried fixes are there. Imei is read carrier is not WiFi is received but there is an X above the data bars phone is fully unlocked as well

This may help also but it does not read my imei when the SIM is not in hmm maybe I will rework the imei code and get back if that works. I will keep updated when fixed and with solution