Develop Bugs

Random Dropping mobile network connection...

I rooted my Evo a while back. No problems. After a few months I started getting these weird problems where I would get no 3g network at all. I was running Caulkins ROM and now MikFROYO ROM. Still the same problems, on both.
Flashed the bundle radio update pack (comb) from this link:
http://forum.xda-developers.com/showthread.php?t=715485
Still have this intermitten issue. Nothing regarding the internet or even calls would work. I can't make phone calls, get on the internet, facebook apps stop syncing everything. The bars on top become all empty. Not 1 bar at all.
I try restarting and even shutdown and turn the phone back on but none of this works... I even did my prl/profile etc. updates and still. The only way to get everything back up is to wait. After a while everything kicks back in and it's working again.
Can anyone help me with this? It's really frustrating and I've had this phone from release day. It only started this recently and it's intermittent and hard to pinpoint anything structured with why and when this would happen...

No one else has ever had this problem?

[Q] Evo CM7 won't call, won't do data (after several days of working)

I recently rooted my Evo and put CM7 nightly 12 on it. All was well, I even installed the Savaged Zen kernel. Even better. Just yesterday I updated to CM7 RC2 to give it a shot. Today I went to work and had to drive to a remote area where I don't get service, so I put my Evo in airplane mode to save battery life. (this was after having it overheat while charging, could be a hardware issue) At the end of the day I turned the 3G radio back on and nothing... It connects and disconnects to the tower. It will not send data and it will not place phone calls on the 3G connection (WiFi works). I did a restore back to nightly 12 to see if maybe it was a problem with the OS. Nothing. A few hours ago it began functioning again, but after checking it a few minutes ago I have discovered it is back to no connection. (the signal bars bounce between nothing and full, but never shows the X for no signal) Has anyone else had an issue like this? Should I restore back to sense and unroot to take advantage of my warranty? If this has already been posted before please direct me to the right thread.

I'm having the same problem. I installed Cyanogen RC 2 and had no problem since it came out. I went on vacation to a beach, and during my trip I switched it on to airplane mode since I was in a remote location. After turning it back on, I noticed I can't get the Data Connection to work. The 3g bar doesn't even show up, and after messing with the settings trying to fix the problem I managed to do nothing. I tried using a backup I made from a week past, and encountered the same problem. Then I flashed the newest nightly and still no Data whatsoever. Wifi works fine, and 4g is acting weird but I got it to work a few times. Does this have something to do with sprint?

I think it is the same as the 4G 3G hang. I typically get it while tethering and the phone is normaly quite warm.

So I managed to fix the problem. I ended up flashing Koni's Elite Rom
http://forum.xda-developers.com/showthread.php?t=941055
I got an error that said "Error 67 registration failure"
I updated my profile and it was automatically fixed. I'm not aware you can do this on cyanogen stock rom, but I think you can dial a number that will do this for you.
After getting the 3g to work again, I flashed back to the stock cyanogen, and it is still working. So for now im good to go.

I do think is sprint and not the rom because I did a restore to warm z and was still having the same problems. Also my brother's evo was doing the same thing and he doesnt have cm7 on it.

I figured it was something to do with the profile... I restored all the way back to sense and attempted to update profile, but it doesn't seem to be doing anything. I will try that ROM and see if it does anything. Why can't they just make this easy and allow updating of vital software that allows the radios to work on WiFi or from SDcard? This is dumb.

I tried that ROM and nothing works. Not really sure what to do. I might have to restore to Sense and unroot to take it back... I really want to avoid that if at all possible.

Unrooted my phone and getting a free replacement from Sprint. Still unsure of the problem, seems to work randomly.

jmoh said:
So I managed to fix the problem. I ended up flashing Koni's Elite Rom
http://forum.xda-developers.com/showthread.php?t=941055
I got an error that said "Error 67 registration failure"
I updated my profile and it was automatically fixed. I'm not aware you can do this on cyanogen stock rom, but I think you can dial a number that will do this for you.
After getting the 3g to work again, I flashed back to the stock cyanogen, and it is still working. So for now im good to go.
Click to expand...
Click to collapse
I also have the same problem. No 3g data, gps, and 4g is acting weird.
I also had the same registration error number 67. My question is, how do you update your profile?

4.3 data drop and Airave blocking texts

Hi.
I'm sure this has been a topic that has come up before, but I've exhausted my Google searches. I just received a new (refurb) Gnex three days ago due to dropping mine on the cement. Everything seems fine with it except for two things.
1) It came with 4.3 on it. Great, that was nice. However, I have noticed that coming from 4g to 3g I will lose data completely unless I toggle the mobile data. It LOOKS like I am still connected...blue bars etc. But I'm not. Makes this phone useless. I had this problem on my old Gnex when testing Kit Kat roms. I thought it was cause the KK roms were still a wip. Any help?
2) While connected to my Airave at home I can't send one single text. I have tried everything. PRL updates, profile updates, resetting Airave, turning on and off. Everything I could think of. My old phone NEVER had this issue.
Did I get a lemon?

I have been having the same issues with my phone recently. I just started slowly, texts not going through here and then.. but then it started snowballing to the point that I cannot currently make/receive phone calls or texts. I get 3g/4g data.. and sometimes, just sometimes, I can get texts when I'm outside. I've tried to flash a ton of different radios and I have even opened up my phone to see if anything was disconnected.. Nothing appears to be wrong at the moment.

[Q] Voice issues

Is anyone have issues with voice calling. As of lately while trying to call out, it will take upwards of 9-16 seconds for the phone to start ringing with 3 bars. Also with 3 bars the connection has been broken, choppy or flat out disconnects after a few seconds. I did the ##72786#, and updated the PRL, but that didnt do much to help. I have also noticed that my 4G isnt a good as it use to be since i took ND8. My wifes phone isnt having those issues because i test called on here phone and here connection was fine. Sprint said it was my Radio, but ive read that the ND8 radio wasnt very good.
I am thinking about doing a full restore to stock 4.4.2 to see if that helps, but id like to know if anyone else has any other suggestions before i do that. It will be a long process and i am hoping to avoid a full restore.

[Q] Network dropping randomly

Hi there, this is my first post here.
I recently got a SGH-i747 phone, I believe it's AT&T from the US, I am in New Zealand and using it here with Spark NZ(Telecom), when I first boot the phone, I have full reception, the internet works fine, I can text, make calls, browse the web, but about 30 seconds to a minute later the connection drops to 0 and doesn't load anything.
When I do have signal, it looks as it should and has a 4G symbol.
Running stock 4.4.2, no custom recovery either. It was doing it with 4.3 too, so that's when I decided to update.
I'm at the point where I'll just list this thing for sale and buy a different phone, it's frustrating me a whole lot.
Thanks,
Sam
Edit: The home-screen image is when the internet works

DrowsySam said:
Hi there, this is my first post here.
I recently got a SGH-i747 phone, I believe it's AT&T from the US, I am in New Zealand and using it here with Spark NZ(Telecom), when I first boot the phone, I have full reception, the internet works fine, I can text, make calls, browse the web, but about 30 seconds to a minute later the connection drops to 0 and doesn't load anything.
When I do have signal, it looks as it should and has a 4G symbol.
Running stock 4.4.2, no custom recovery either. It was doing it with 4.3 too, so that's when I decided to update.
I'm at the point where I'll just list this thing for sale and buy a different phone, it's frustrating me a whole lot.
Thanks,
Sam
Edit: The home-screen image is when the internet works
Click to expand...
Click to collapse
I am in same boat. When I get signal, everything is fine. Every 15-20minutes or so, for about 30 seconds, it is absolutely no signal (black triangle). And from battery screen, it appears, exactly at same interval. Did you get ur problem resolved? IF so, how

It's a known but not so known issue. It has to do with the radio interface layer, and our device maintainer at CM is looking into it.
What works for me is switching to 3G for a while (a few hours and a few reboots or so) then switching back to LTE. The problem should be fixed until you wipe /system for a new ROM.
I have a thread on the Q&A board detailing my frustrations.