Develop Bugs

[Q] Radio dead - no connection

Hey folks,
Something strange happened to my HTC One X. Everything has been working as expected. As I was getting on a plane, I put my phone in flight mode. Right up to the point where I put it in flight mode, it was working fine - calls, data, everything. When I got to the other side and took off flight mode, it showed NO SERVICE. It will no longer connect to any network. I've tried several SIMs with no luck. I'm running CM 10.2 nightly builds, but I've reinstalled several different ROMs with no luck. Is my radio broken? Admittedly, I have been installing different radios, but I can't see how that could be the problem. It had been days since I installed a new radio, and it was working fine up to this flight.
If I use a tool like Test Your Android and view the SIM card information, it shows the correct SIM country, Operator Code, but no phone number. If I got to Settings, the IMEI shows normally as does the baseband. It just refuses to connect. Any ideas?

A month ago, somewhere in Vietnam, i put my phone in airplane mode while inside the plane. on landing i tried to turn the airplane mode off but it stuck in "turning off" and no network i was using a Vietnamese sim-card, so i took it off and i put back my tmobile one sim but that didn't help. i got stressed and i kept changing sims, turning the phone on and off, pressing the airplane mode button while sim tray was in or out , was trying every possible combination that i could think. after 30 minutes it found a network somehow and it came out of the airplane mode that was stuck. i couldn't believe it. Tho dunno what really fixed it but keep trying...

Interesting, thanks for sharing that. I have the feeling that if I were to go back to Spain, it would connect to Movistar again. But the question is, what do I do for the next two weeks.... =/
I will keep trying for sure.
n1kos said:
A month ago, somewhere in Vietnam, i put my phone in airplane mode while inside the plane. on landing i tried to turn the airplane mode off but it stuck in "turning off" and no network i was using a Vietnamese sim-card, so i took it off and i put back my tmobile one sim but that didn't help. i got stressed and i kept changing sims, turning the phone on and off, pressing the airplane mode button while sim tray was in or out , was trying every possible combination that i could think. after 30 minutes it found a network somehow and it came out of the airplane mode that was stuck. i couldn't believe it. Tho dunno what really fixed it but keep trying...
Click to expand...
Click to collapse

I just noticed something else. My battery is being drained constantly by Phone. As long as the device is powered on, Phone is using the battery. It's like the radio is stuck in call mode. wtf???

I exactly have the same issue.. Been searching for solution everywhere.. an somebody pls help us?

mcoolit23 said:
I exactly have the same issue.. Been searching for solution everywhere.. an somebody pls help us?
Click to expand...
Click to collapse
I eventually figured out my problem. Bad SIMs all the way. My SIM went bad, and the other two I tested with happened to both have gone bad. Finally got a good SIM and everything was back to normal.

boughness said:
I eventually figured out my problem. Bad SIMs all the way. My SIM went bad, and the other two I tested with happened to both have gone bad. Finally got a good SIM and everything was back to normal.
Click to expand...
Click to collapse
BTW - I didn't find this out until after I ordered and received a brand new phone, after assuming my radio was completely broken. I tried all three SIMs in the new phone and none of them worked. You can imagine how pissed off I was. Thankfully - magically - the new phone had a broken vibration mechanism, so I was able to get a full refund, and I'm once again happy with my HOX. Also took the opportunity to flash a clean CM 10.1.3 for a fresh start. Super happy phone.

[Q] Yet another "No service" Issue

Hi everyone,
I'm running into what seems to be a common issue with this phone - getting a no service error. This started happening after I turned my phone on this morning, and I don't recall changing anything that could have caused this.
When I look at the testing menu, the network status flickers between no service and emergency calls only. The network mode defaults to "Unknown", and when I try to change it to anything else it will return back after a second. The radio status is set to off, and if I click the button to turn it on, it does not appear to do anything. I've tried rebooting my phone several times, pulling the battery, reseating the SIM card, clearing the cache, but nothing I've tried so far seems to work.
Is there anything I can do that minimizes destruction (clearing all data or doing a reflash) to get this working?
Thanks in advance.
EDIT: I'm not sure what I just changed, although my phone decided to connect to the network... Huh!

[Q] Shutdown issue (but not the overnight one!)

Hi,
I've been reading the other shutdown issue with interest from the start but I think that my particular issue is different and I'd like to know whether anyone else has my exact problem.
I'm using the o2 UK 16GB version 10A/234 and this is the problem:
When I reboot the phone and it gets to the lockscreen, if the network status is "disabled" on the lockscreen and I swipe to open, the phone shutsdown and can't be started again until I remove the battery.
If I wait for a couple of seconds when the lockscreen comes up, there is a little lag but the phone works as normal.
I can replicate this issue over and over again, so it is not a random occurrence AND this is the second handset that I have had where this exact problem is present.
Does anyone else have this issue?

constantG said:
Hi,
I've been reading the other shutdown issue with interest from the start but I think that my particular issue is different and I'd like to know whether anyone else has my exact problem.
I'm using the o2 UK 16GB version 10A/234 and this is the problem:
When I reboot the phone and it gets to the lockscreen, if the network status is "disabled" on the lockscreen and I swipe to open, the phone shutsdown and can't be started again until I remove the battery.
If I wait for a couple of seconds when the lockscreen comes up, there is a little lag but the phone works as normal.
I can replicate this issue over and over again, so it is not a random occurrence AND this is the second handset that I have had where this exact problem is present.
Does anyone else have this issue?
Click to expand...
Click to collapse
I'm facing the same issue. Is your device rooted?
At first every (re)boot without being connected via usb to a charger or a computer would result in a shutdown shortly after I enter my pin. After a day of usage I cannot reproduce it anymore, although it still happens from time to time, for example yesterday when I tried to send a text while having very bad to no reception. When it happens I also have to remove the battery or hook it up to a charger, otherwise the buttons/screen would not respond..
I'm thinking there is a (firmware) problem with the chipset since it always happens when my phone is trying/strugling to connect to the mobile network. I installed an app which constantly writes logs to my sd, hopefully that will give me more information about what's causing the problem..
Are you also having bad reception when the device shuts down? My previous device (iPhone 5s) had normal reception in my house, incl. a stable 3G connection, always 2-3 bars of 5. The LG G3 is constantly strugling with the connection to the network and often switches to "emergency calls only"..

NtotheO said:
...
I'm thinking there is a (firmware) problem with the chipset since it always happens when my phone is trying/strugling to connect to the mobile network. I installed an app which constantly writes logs to my sd, hopefully that will give me more information about what's causing the problem..
Are you also having bad reception when the device shuts down? My previous device (iPhone 5s) had normal reception in my house, incl. a stable 3G connection, always 2-3 bars of 5. The LG G3 is constantly strugling with the connection to the network and often switches to "emergency calls only"..
Click to expand...
Click to collapse
Interesting...I had a shutdown last night when I was home,at home I have very poor reception and almost always "emergency calls only"

NtotheO said:
I'm facing the same issue. Is your device rooted?
At first every (re)boot without being connected via usb to a charger or a computer would result in a shutdown shortly after I enter my pin. After a day of usage I cannot reproduce it anymore, although it still happens from time to time, for example yesterday when I tried to send a text while having very bad to no reception. When it happens I also have to remove the battery or hook it up to a charger, otherwise the buttons/screen would not respond..
I'm thinking there is a (firmware) problem with the chipset since it always happens when my phone is trying/strugling to connect to the mobile network. I installed an app which constantly writes logs to my sd, hopefully that will give me more information about what's causing the problem..
Are you also having bad reception when the device shuts down? My previous device (iPhone 5s) had normal reception in my house, incl. a stable 3G connection, always 2-3 bars of 5. The LG G3 is constantly strugling with the connection to the network and often switches to "emergency calls only"..
Click to expand...
Click to collapse
This happens rooted non-rooted, stock (no added apps) and always whilst connecting to phone network. Are you on same variant as me and if you leave it for a moment before putting in your pin does it then work ok?. I'm trying to get o2 to change my handset for another model (m8) but they just want to fix my one.
Sent from my LG-D855 using XDA Free mobile app

constantG said:
This happens rooted non-rooted, stock (no added apps) and always whilst connecting to phone network. Are you on same variant as me and if you leave it for a moment before putting in your pin does it then work ok?. I'm trying to get o2 to change my handset for another model (m8) but they just want to fix my one.
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
Yes I'm on the same variant. Still running the 10A firmware.
Sometimes it works, but I will do some more test this evening after work and see if I can reproduce it every time and hopefully get some usable logging too.

I think this is fixed in the 10f firmware update that I installed yesterday. I haven't had a shutdown since :victory:

constantG said:
I think this is fixed in the 10f firmware update that I installed yesterday. I haven't had a shutdown since :victory:
Click to expand...
Click to collapse
i was facing almost same issue except my phone crashed and don't want to boot up, haven't edited anything just started bluetooth. sometimes it start sometimes it doesn't
now it doesn't want to boot at all even charge screen gets stuck

LG-H815 - "service disabled," no signal received.

I have an LG-H815 running the v10c-EUR software. It's been running fine up until today. Today when I turned off the phone and turned it back on, I got a notice of "service disabled" and the phone was showing the search symbol above antennae reception bars for a minute or so and then it would change to a small red "X". I have taken the battery out, removed the Sim card and put everything back to no avail. I tried the sim card in my old phone and it works fine. I did a complete wipe and factory reset and the problem persists. The phone will report "no sim card" if I start it up without the sim. When I put the sim in, it just says "service disabled" and then "no service. " I even tried going back to default apn and then re-entering my straight talk apn and rebooting - still nothing. I have not added any programs lately and I have been using a Qi charger with an aftermarket sticker with no problems whatsoever for the past 45 days. I haven't had so much as a hiccup with the phone until today!
Has anyone else experienced such a crazy and sudden loss of service? Is my radio fried, or is there a software solution to this? Any help would be greatly appreciated.

I sure hope I can get some ideas on how to fix this. I have square trade coverage on this and my only option is to send it to their repair center. That seems like it would be a total waste of time.

Try your sim card in another phone and another sim card in your phone to determine if your sim card is faulty or maybe your sim card reader. I get the "service disabled" message until I enter my pin code.

I tried the sim swap out and nothing. I also was getting a weird phenomenon where very briefly I would get one bar of signal and the no signal warning would shut off, then in a matter of seconds, the signal would fade and then shut completely off again. This looks like it is almost certainly a hardware issue that has nothing to do with the sim card or sim card reader. I sent if off to the SquareTrade service center to see if they can fix it (doubtful). I'm hoping I get a good result from them as I have not LG warranty and bought the Squaretrade coverage at the time of phone purchase.

I'm getting this occasionally. Occurs randomly.
According to posts around here, the G4's stock ROM and stuffs are bad. Only thing to do is wait for them to fix it. Maybe it's related.
Sent from my LG-H812 using Tapatalk

Have you been asked for your sim card pin? Maybe we face the same issue?
http://forum.xda-developers.com/g4/general/reboot-sim-pin-unfortunately-process-t3192485

fpsq said:
Have you been asked for your sim card pin? Maybe we face the same issue?
http://forum.xda-developers.com/g4/general/reboot-sim-pin-unfortunately-process-t3192485
Click to expand...
Click to collapse
No, I haven't been asked for the SIM card pin. My problem was definitely a hardware failure. I filed a claim with Squaretrade and shipped it off to their California service center. I just got the phone back today after a week's wait. At first, the service guys were saying it was a software problem and I wasn't covered. Then I called the claims department and read them the riot act and insisted they update my information to the service department about not having changed the software at all when the problem arose and all the steps I had taken to establish rather conclusively that it was indeed a hardware malfunction. Well....lo and behold, I get an update the next day that they had replaced the motherboard and it was now working fine. If anyone else has this same problem and you happen to have squaretrade insurance, the precedent has been established that it is a hardware issue and you are covered.:good:

This happened today and the phone kept shutting off as well after freezing and now won't turn on. It may have hard bricked itself. Going to try another g4 battery at the t-mobile store or maybe get a replacement. Hopefully certain un-backed up things can be recovered.

I reset the phone adding some press in SIM CARD slot and signal was recoverd, seems like hardware issue.

I had the same thing, only after going back to factory settings the phone works fine again...

bartbla said:
I had the same thing, only after going back to factory settings the phone works fine again...
Click to expand...
Click to collapse
It happened again and now after going back to factory settings, the problem stays...

Happened to me as well. Removed SIM, mem card and battery and left the phone to cool down. Putting back everything after an hour fixed it.

happened to me just now.
when i press the power button nothing happened, so i decided to remove the battery and restart it.
after restarting service disabled is displayed on my lockscreen. i checked the imei and "unknown" is written.
does anyone here know a fix on this? doesn't have a warranty so i don't know how much LG service center will charge me if i take it to them directly.

It just started to happen to me yesterday after 18 months of use.
Its the very same problems. Im rolling with a LG G3 thoug.
It even did persist after several ROMs clean flashing and even a stock FW flashing.
All of sudden, its working again for an hour or so!

U all need to flash modems of H815 MM or custom via TWRP Or flashfire...usually its a zip file search here on xda

It's the battery!
I had the same "service disabled" nightmare, then I realized the problem started when I swapped in a freshly charged battery. My batteries have been misbehaving recently, and they've probably cycled to their max. When I changed back to a different battery the issue disappeared. I've had this a couple of times now, where "service disabled" would come up, restarting wouldn't help, but switching back to the previous battery did. My suggestion: test your phone with a different battery.

asprei said:
I had the same "service disabled" nightmare, then I realized the problem started when I swapped in a freshly charged battery. My batteries have been misbehaving recently, and they've probably cycled to their max. When I changed back to a different battery the issue disappeared. I've had this a couple of times now, where "service disabled" would come up, restarting wouldn't help, but switching back to the previous battery did. My suggestion: test your phone with a different battery.
Click to expand...
Click to collapse
I bought a new battery and, first start with the new battery was ok, but the second restart the problem returned...
With a lot of times trying different methods, I found out that restarting the phone while connected to a charger or computer always works for me (tried this at least 20 times and it always works).
Turning on the pin-code of the sim also seems to do the trick, the phone first displays service disabled and then asks for the pin, after entering the pin, the sim becomes active (I only rebooted like this a few times, but it worked every time).

Had this problem. Done a hard reset which seems to have fixed the problem at least for now ( only been one day! Keep waiting for it to start doing it again but so far so good)

I found out that restarting the phone while connected to a charger works for me too

SiM problem (Not recognised)

Hello everyone.
Since a couple of days my phone is getting a strange problem.
Sometimes when I turn it on, it doesn't recognise the SIM.
Sometimes it turns on with no problems, but, randomly, a pop up message appear, saying something like "Mobile data won't be available until you mount a proper SIM" with a progression line under the text, and then the phone, most of the times, reboots. Other times the SIM stops working with no warning.
I have tried the SIM on another phone and seems to work ok. I have tried to reseat the SIM as well, several times.
I was running Fulmics 5.0. I experienced this problem so I upgraded to Fulmics 5.2, full wipe, but the error kept presenting.
I even tried to add a layer of paper over the SIM so it couldn't move, but nothing.
I don't think it's an overheating problem because the error presented even when I just restarted with the phone still cold.
I wonder if it is an hardware problem, because I was running Fulmics 5.0 for several months and I never experienced this problem.
It shouldn't be related to some Xposed module, since I deactivated all of them.
Can anyone please give some advices? I'd like to try everything before taking it in assistance...I have never dropped it, if it is related to the hardware it would be strange for it to come out of the blue at random...
Update:
I tried to flash the last CM13. The phone doesn't reboot, but the SIM stops working as well.
The SIM stops working even when the mobile phone is still somewhere, so I guess it's not like that I move the phone and the SIM loses contact on the SIM reader I guess...
Update:
I sent it to repair it, on warranty. They changed a piece, and now it works.