Develop Bugs

[Q] No Service, No Data, WiFi Slow...

So, i rooted my phone today, bricked it a couple times, then fixed it(this doesnt matter)
Ok, so i was really excited to get this rom:
http://forum.xda-developers.com/showthread.php?t=864445
(I got the trinity, NOTthe Frozen one)
Long story:
So, I install the rom on my phone, no problems...but it seems I'm missing something and I've looked everywhere because i can't sign into Gmail, even with WiFi...Then again, I have no service...3g, or 4g, or for calling. Absolutely no bars in one of the strongest areas of my house. I'm thinking I'm missing some type of modem... I cant find it, I think i found it previously but from a different website, and they didn't even give instructions. Please help me because this is an awesome rom and I don't want to go back to stock rom.
Short story:
-no service, or data service, either.
-Missing some type of "modem" to enable data
-Airplane mode wont turn off. When clicked, it keeps going on and off. Please help!
Thanks in advance.

Not sure if this helps but I was getting major signal drop on 4g. Come to think of it 3g too. I don't think you are missing anything if it boots up and opens. Sometimes devs make tweaks internally that may not be known to us. I know when signal is constantly searching you get major battery drain
UFE (Unidentified Flying Epic)

Well, at least it's not just me.
For me the only way I've found that reliable works is to Odin back to DI18 and start from scratch.
Unfortunately, I basically can't touch CWM afterwards, because doing anything in it seems to bring the bug back.
Hopefully there's a fix out there for those of us that are continually plagued by this rather bizarre issue.
Seems rather strange that reflashing the modem with Odin doesn't even do the trick.

Just to.let u know you said you bricked your phone a few times. If you brick a phone it doesn't come back. You can't brick a phone a couple times. To answer your question sounds lime you need to reflash the.modem. go into.settings and about phone and see what your baseband version is. It should the same as the software you are on. If you are on dk28 then it should be dk28. Also I would upgrade to eb13 since dk28 is ikd school now and to many bugs that were not fixed. Just my 2 cents. Good luck
Sent From My Evo Killer!

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?

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

LG G3 back to JellyBean

This may have been posted, If so, sorry, I could not find it.
Now that that I have installed the T-mo Lollipoop update, my phone is a paperweight. As I don't suppose T-mo will replace it....
Is there anyway to roll the LG-G3 back to KitKat or whatever version it was on WHEN IT WORKED PERFECTLY?
Any help would be appreciated, it is useless as it is.

Gdraft1 said:
This may have been posted, If so, sorry, I could not find it.
Now that that I have installed the T-mo Lollipoop update, my phone is a paperweight. As I don't suppose T-mo will replace it....
Is there anyway to roll the LG-G3 back to KitKat or whatever version it was on WHEN IT WORKED PERFECTLY?
Any help would be appreciated, it is useless as it is.
Click to expand...
Click to collapse
I ask this when fixing computers, why is it a paper weight lol.. whats wrong with the phone ? we need moar nfo ...

Paperweight
No or Spotty Wi/Fi
Cell signal has almost vanished (it I stand next to a T-mo tower I can get 5 bars for a minute)
Cell signal keeps dropping so the phone is constantly searching for a signal
Due to constantly searching for signals, the battery drain is actually watchable on the notification screen, about 1% a minute.
Phone will not stay connected long enough to complete a call.
All of these Issues happened after Lollipoop.
Hence, is there a way do "Upgrade" it back to Kit Kat.
I could not find anything on her about it. I did find a video on Youtube, but it was for a Verizon unit, not sure if it would be the same or not
I have two phones, same issue on both phones.

Gdraft1 said:
No or Spotty Wi/Fi
Cell signal has almost vanished (it I stand next to a T-mo tower I can get 5 bars for a minute)
Cell signal keeps dropping so the phone is constantly searching for a signal
Due to constantly searching for signals, the battery drain is actually watchable on the notification screen, about 1% a minute.
Phone will not stay connected long enough to complete a call.
All of these Issues happened after Lollipoop.
Hence, is there a way do "Upgrade" it back to Kit Kat.
I could not find anything on her about it. I did find a video on Youtube, but it was for a Verizon unit, not sure if it would be the same or not
I have two phones, same issue on both phones.
Click to expand...
Click to collapse
Unfortunately from my experiences and other people's experiences downgrading to Kitkat after Lollipop with data issues, you will still have those data issues when you go back to Kitkat. It seems going back to Kitkat via KDZ or TOT does not restore the modem or it does but the modem still does not function correctly. The only way to fix LTE and data issues was to flash Blisspop 2.3 and determining that data sticks on that rom. If it does, your data and modem issues should be resolved and you can use stock lollipop again. If you want to try this route here is my thread on how to fix it. Make sure you are rooted with twrp
http://forum.xda-developers.com/tmobile-lg-g3/help/lte-lollipop-issue-fix-t3075637

vel0city said:
Unfortunately from my experiences and other people's experiences downgrading to Kitkat after Lollipop with data issues, you will still have those data issues when you go back to Kitkat. It seems going back to Kitkat via KDZ or TOT does not restore the modem or it does but the modem still does not function correctly. The only way to fix LTE and data issues was to flash Blisspop 2.3 and determining that data sticks on that rom. If it does, your data and modem issues should be resolved and you can use stock lollipop again. If you want to try this route here is my thread on how to fix it. Make sure you are rooted with twrp
http://forum.xda-developers.com/tmobile-lg-g3/help/lte-lollipop-issue-fix-t3075637
Click to expand...
Click to collapse
Once I do that I will lose WiFi calling won't I?
It is my understanding once you over write T-mo's Rom you lose that.

Gdraft1 said:
Once I do that I will lose WiFi calling won't I?
It is my understanding once you over write T-mo's Rom you lose that.
Click to expand...
Click to collapse
Yes and No flashing blisspop rom will just fixed your data and LTE issues, I'm not telling you to keep the rom, that is entirely up to you. Yes keeping custom roms that are not stock will lose wifi calling and all the tmobile stuff. After you can confirm that LTE and data works you can then flash back to stock or restore to stock. That way you can still have Wifi calling and have a stock rom.

[Q] Stock LP Wifi connection

So I have a rather strange problem, and have found no help in other threads, so I'll start on here. I have the white G3 on T-mo (obviously) and have been trying to upgrade it to LP. I have tried both Autoprime's stock ROM as well as the stock ROM posted today extracted from the KDZ. Both were flashed through TWRP and have the exact same problem. Any time the wifi gets shut off for any reason, whether to send an MMS or because I leave the house, when it turns back on, it will not route to the internet. I can access anything on the local network, but somehow the route to the modem and the world at large is just gone, and will not come back with anything short of a reboot. I have also noticed that after a few hours of relative stability, the wifi will just randomly stop working. One other aside that may or may not be related, people have been complaining of text messages being sent 10 to 15 times when using the wifi calling since upgrading. Honestly, I'm pretty tech savvy and have followed all the flashing instructions, but am at a complete loss here. I am sure the problem is with my phone, since the identical symptoms have occurred with 2 ROMs now, both were clean flashes. Does anyone have any insight to this issue at all?

My girl has this same issue on her G3 but hers was updated through the OTA. Its running stock ROM, rooted & stock recovery and after updating to lollipop, she's having WiFi issues and battery issues and other stuff like freezing & stuff.
Zen'd N6

So, obviously there is no idea among the community regarding what is causing these wifi issues. However, T-Mo has pulled the 20b update for unannounced reasons, but stating that they seek to provide the best software experience. There are obviously multiple issues with the update, from battery to wifi calling, etc. I'm just going to assume that the wifi issues I am experiencing are part of the issues that got the update pulled. Short version: if you are wanting to use wifi calling and keep the phone as stock as possible, stay on KK for a while.