Develop Bugs

Help LG GW620 Stuck on Airplane mode (won't turn off) Android

Hey guys,
I have a big problem.
My phone Lg gw620 (French version, Rom V10B actually) stuck on Airplane mode and i have a X on my side bar..., plane mode won't turn off, i tried to turn off so many times but back always On... i can't do anything.
1- I already tried this (update, many different rom, remove battery, flash etc... didn't help, didn't fix the problem)
2- The cell radio doesn't work, also the wifi, BT etc...
3- I supose android 1.5 make this problem ! Kernel version 2.6.27..
What can i do to back a old kernel version ?... or what can i do to fix this problem?..
Thanks
LG GW620
Software version : GW620-V10b (i tried V10B, V10G, V10F didn't fix)
Firmware version : 1.5
Kernel version : 2.6.27 ([email protected] # 6)

nobody know this problem ?

i know this topic is too old
but the solution is to restore NV backup from a working phone "same radio image"
i was in your trouble before , but i fixed my EVE

reply plz
sad_but_cool1 said:
i know this topic is too old
but the solution is to restore NV backup from a working phone "same radio image"
i was in your trouble before , but i fixed my EVE
Click to expand...
Click to collapse
Hey sad_but_cool please reply...i have the same problem, my EVE doesn't read my sim anymore..i thought that the solution could have been restoring NV...but i have no backup of NV can you tell me how to find any NV file??? Please i want to restore my eve

nobody knows the answir for this problem

"No service"

Hello
I have LG G3 the international version with installed stock rom 5.0,
Before I install it, I backed up the previous kitkat rom.. When I installed the lollipop stock rom I decided to go back to my previous kitkat rom. After restoring it and booted it everything was ok but it says no service, emergency calls only. And the signal at the status bar was refreshing every second automatically. I tried to return to that lollipop rom to see whether the signal is ok or no but there was no problem with it. But I dont know whats the probkem in that kitkat rom.... Plzzzz helpppp mee!!

I have the same problem! I used a custom lollipop rom and messed with something so I had to restore the stock Kitkat.
Now it keeps searching for the signal and says "no service" It found the signal for a few times but lost it immidiately.. Wifi works fine.
i would be rly thankful if somebody can fix this.

Jatiska said:
I have the same problem! I used a custom lollipop rom and messed with something so I had to restore the stock Kitkat.
Now it keeps searching for the signal and says "no service" It found the signal for a few times but lost it immidiately.. Wifi works fine.
i would be rly thankful if somebody can fix this.
Click to expand...
Click to collapse
Flash suitable Kitkat modem for phone.

Im having the same issue i purchased a used G3 and it says " NO service" ive tried eveything and verified with sprint there is no block on the phone. got a new sim card from TING ... the phone will activate only over WIFI but i have never been able to get cell service Is this a hardware issue? im totally lost and TING is telling me to take it to a cell phone repair shop. ( i repair phones myself actually as part of my job but never run into this)
Ive flashed back to stock from via XDA instructions
Any help would be awesome!!
Thanks

I have found a lot of threads and people reporting this issue. Bought a D855 32Gb from China that has this problem...
Phone tries to get signal a couple of seconds and then a cross.. and so on..
I tried everything I think, I passed for all the bricks the phone can do: Automatic Reboot / Boot Loop / Fast Boot / Security Error / Factory Reset Status 2 / Dead (QHSUSB_DLOAD) - I can help anyone that has any of those problems : )
In one of the flashes my phone turned to D855RE, similar case to other people, also the message "Current version is not available for user. Can't find matched cust for NT-Code mcc/mnc".
Please if anyone was able to fix the problem report here, there is a lot of people waiting for the answer 20 threads in different networks, I will post the solution in each of those. Thanks!

Same happening with me,
I have LG G3 T-Mobile version, it keeps searching the service, sometimes it finds when there is very good signal, or when I am too close to the GSM antenna, I was thinking maiby there is problem with antenna contact, I have opened cleaned, but with no success. When is has service it does everything, calling, sms, 4G.
any help with this issue?

satrowii said:
Hello
I have LG G3 the international version with installed stock rom 5.0,
Before I install it, I backed up the previous kitkat rom.. When I installed the lollipop stock rom I decided to go back to my previous kitkat rom. After restoring it and booted it everything was ok but it says no service, emergency calls only. And the signal at the status bar was refreshing every second automatically. I tried to return to that lollipop rom to see whether the signal is ok or no but there was no problem with it. But I dont know whats the probkem in that kitkat rom.... Plzzzz helpppp mee!!
Click to expand...
Click to collapse
Get the modem from here for your firmware version (mine is 10M) and flash in custom recovery,i had the same problem after downgrading,all will be good
http://forum.xda-developers.com/lg-g3/general/radio-modem-lg-g3-t3110376

still no luck with modem/radio change
ludoke said:
Get the modem from here for your firmware version (mine is 10M) and flash in custom recovery,i had the same problem after downgrading,all will be good
http://forum.xda-developers.com/lg-g3/general/radio-modem-lg-g3-t3110376
Click to expand...
Click to collapse
HI. i tried to change to several radio but I still don't have a signal. I just can't find the thread from other site, that it could be a D850 not an D855 motherboard. He tried to change the ROM to D850 and finally got a signal.

I have the same problem, any help is welcomed.

PacMaNNNN said:
I have the same problem, any help is welcomed.
Click to expand...
Click to collapse
If you can, return the phone. As previous post suggested, its a popular thing from some chinese sellers to change the model. You will see the original model in your motherboard (you have to disassemble the phone) and have to flash the proper stock image. First confirm that the model is the model you ordered.

juanmazake said:
If you can, return the phone. As previous post suggested, its a popular thing from some chinese sellers to change the model. You will see the original model in your motherboard (you have to disassemble the phone) and have to flash the proper stock image. First confirm that the model is the model you ordered.
Click to expand...
Click to collapse
The phone was okay, this started happening when I flashed stock Marshmallow, then I flashed MIUI KitKat rom to see if its the the marshmallow that does that only, but it was on MIUI as well, after that I flashed Fulmics, but still the same. Now I'm on stock Marshmallow and it's doing it as well. I found a little "thing", when you set the network type to WCDMA/GSM there is no more no service, everything works. But when you put LTE it goes down.

If you suspect this can be the case of model tempering by seller, open your phone and unscrew the upper plastic cover, at the right you will see the Motherboard factory code with the phone model in it. Youll have to flash an according complete stock with flash tool.

juanmazake said:
If you suspect this can be the case of model tempering by seller, open your phone and unscrew the upper plastic cover, at the right you will see the Motherboard factory code with the phone model in it. Youll have to flash an according complete stock with flash tool.
Click to expand...
Click to collapse
and from where i can find japanese version of lg g3 sock firmware?

lg g3 no service detected !

Hi everyone
i have an lg g3 d855 EU working just fine for 1 year and a half ,
And lately when i upgrade to Marshmallow and then i stated flashing a different custom roms and they all work fine!
But a week ago I got a strange problem! A sudden msg appear for few second and then phone keep rebooting:
“Mobile network will be unavailable until you restart with a valid sim card”
I’ve done a lot of research and tried them all but still the same probe:
-put a piece of paper on the top of the sim cad
-replace the sim card
- Factory reset
-flashed android 5 the original kdz file got from official lg firmware using my IMEI
-....
So I decided to get it to a technician!
-so he replaced the sim card reader with a new one! After that the phone went just fine for 4 days and then the problem come back, so I get it back to him, so he replaced the reader with second new one and he told me that the reader is not the problem and is 100% working so when I put the sim card and reboot it ask me for "pin code" but when I after put the pin code, the phone keep searching for signal for few second than it stay no service at all.
the technician sad that there is some file in lg g3 responsible for the service detection and stuff like that only be obtained from another working lg g3 and only solution is that he can get those fil from a working lg g3 and put it into my phone and he told me it will be working again for sure !
So please guys help me I’m stuck !! Is there anyone know something about these files or their names?? And if he can provide me them I’ll be so grateful. :good:

Haven't seen this problem before. A file issue? Perhaps do another complete factory reset then do a complete wipe flash of the global rom, using the LG flash tool. Get the rom here http://forum.xda-developers.com/lg-g3/general/lg-g3-android-marshmallow-discussions-t3216143
I use that rom so there shouldn't be any issues. Hope this helps

Stevo001457 said:
Haven't seen this problem before. A file issue? Perhaps do another complete factory reset then do a complete wipe flash of the global rom, using the LG flash tool. Get the rom here http://forum.xda-developers.com/lg-g3/general/lg-g3-android-marshmallow-discussions-t3216143
I use that rom so there shouldn't be any issues. Hope this helps
Click to expand...
Click to collapse
thx for your reply man but i already done that and i got the same issue no service.
please anyone can help me to solve this " no service " problem?

no helppp !!!!!!!!!!!!!!

Have u tried flashing the modem ??? Thats the file u need for ur model u can flash it via twrp recovery... Also try flashing any custom modems of ur model since MM doesnt work

Lg g3 service disable after MM update

I used to have signal normally but then i flashed marshmallow rom which screwed my phone in many ways one of them is the signal .. well as for now I have flashed back to stock kitkat d855 TWN and i tried flashing many modems to no avail ... i still have no signal what so ever other than that my phone functions normally - my IMIE matches the one on the box so I can't figure our how to fix it ? any tips?
*additional info* - at settings the mobile networks option is greyed out and the data icon at top(where u open or close 3g) is unuseable it got smth like that "/" on it and cant be turned on. .. my IMIE is correct and it shows .. currently I'm setting on kitkat 4.4.2 rooter with kingroot and have latest twrp ... I tried almost all the solutions on the website so any idea what shall I do ?

patrs63 said:
I used to have signal normally but then i flashed marshmallow rom which screwed my phone in many ways one of them is the signal .. well as for now I have flashed back to stock kitkat d855 TWN and i tried flashing many modems to no avail ... i still have no signal what so ever other than that my phone functions normally - my IMIE matches the one on the box so I can't figure our how to fix it ? any tips?
*additional info* - at settings the mobile networks option is greyed out and the data icon at top(where u open or close 3g) is unuseable it got smth like that "/" on it and cant be turned on. .. my IMIE is correct and it shows .. currently I'm setting on kitkat 4.4.2 rooter with kingroot and have latest twrp ... I tried almost all the solutions on the website so any idea what shall I do ?
Click to expand...
Click to collapse
When you installed Marshmallow.. Did you even factory reset?

Sotiris02 said:
When you installed Marshmallow.. Did you even factory reset?
Click to expand...
Click to collapse
Well ofcourse .. but marshmallow seems to have screwed something with my phone the problem is that I flashed a wrong marshmallow rom I didn't flash the global one , I flashed one for lg d858 HK and that screwed my phone that I hardly repaired it (it was almost hard bricked) but now im back to stock still with no service though ...

patrs63 said:
I used to have signal normally but then i flashed marshmallow rom which screwed my phone in many ways one of them is the signal .. well as for now I have flashed back to stock kitkat d855 TWN and i tried flashing many modems to no avail ... i still have no signal what so ever other than that my phone functions normally - my IMIE matches the one on the box so I can't figure our how to fix it ? any tips?
*additional info* - at settings the mobile networks option is greyed out and the data icon at top(where u open or close 3g) is unuseable it got smth like that "/" on it and cant be turned on. .. my IMIE is correct and it shows .. currently I'm setting on kitkat 4.4.2 rooter with kingroot and have latest twrp ... I tried almost all the solutions on the website so any idea what shall I do ?
Click to expand...
Click to collapse
see this thread, READ CAREFULLY!
https://forum.xda-developers.com/lg-g3/help/4g-lte-capability-imei-repair-t3007524
This will explain what really happen to your phone.

No signal, no wifi, no gps

Hello you guys!
I just received my lg g7 g710ulm. And when i turned on the phone i understood that im not lucky.. I need your helps! Please! Because i cant do it myself.
1. No signal. Don't search networks. Immediately getting error when trying to do it myself. "Preferred network mode" can't change due error and it showed "null". After reflashing it's now showing "22".
2. Don't see any wifi networks. But access point is working and other devices can see me.
2.1 I found that wifi going to work then i tried to use gps. After few seconds phone starting see wifi networks and connecting. If turn off wifi and turn on again phone don't see networks and you need to repeat procedure.
3. Looks like gps not working too.. But tried only in indoor.
I can't understand is it software or hardware issue. Maybe seller changed imei number and model by firmware and did it wrong? Antutu showing strange imei.
Can i to know somehow real model of phone? I can try to make logs and attached it here. Or maybe somebode can check imei, bands with octopus box? I dont know what to do
P.S. Bluetooth is working. Tried to send file and it was fine.
I can't return phone to shop because im living in different country But phone is amazing! And I loved lg. I had lg optimus one (was lost and back by good people), then lg optimus black(was burned in bonfire), lg g2(left in taxi), lg g6 (was lost) and finally lg g7. Yeah, looks like something wrong with me or these lg.. But i love it

Did you put in your SIM card first before you started...
I read you need to insert sim first but could be wrong.

sas007 said:
Did you put in your SIM card first before you started...
I read you need to insert sim first but could be wrong.
Click to expand...
Click to collapse
Sure, i did it. Anyway don't search networks. But what carrier of sim card and numbers into sim card, phone can recognise.
Maybe i wrote not understandable? My english not first language. So asking. I will try to explain.
Thanks for your reply.
I uploaded a log file with errors but cant to write here link, because i need 10 messages

My G710ULM's GPS stopped working 2 days ago, still trying to find out what's the cause of it. Tried apps like GPS Status, GPS Locker, no avail that it isn't picking any satellites at all. Just searching for GPS location. Restarting the device haven't helped either. In settings I even excluded all apps in Power Saving Exclusions. In GPS Status app, resetted and downloaded the A-GPS, this should surely make the GPS work. No success.

deonin said:
Hello you guys!
I just received my lg g7 g710ulm. And when i turned on the phone i understood that im not lucky.. I need your helps! Please! Because i cant do it myself.
1. No signal. Don't search networks. Immediately getting error when trying to do it myself. "Preferred network mode" can't change due error and it showed "null". After reflashing it's now showing "22".
2. Don't see any wifi networks. But access point is working and other devices can see me.
2.1 I found that wifi going to work then i tried to use gps. After few seconds phone starting see wifi networks and connecting. If turn off wifi and turn on again phone don't see networks and you need to repeat procedure.
3. Looks like gps not working too.. But tried only in indoor.
I can't understand is it software or hardware issue. Maybe seller changed imei number and model by firmware and did it wrong? Antutu showing strange imei.
Can i to know somehow real model of phone? I can try to make logs and attached it here. Or maybe somebode can check imei, bands with octopus box? I dont know what to do
P.S. Bluetooth is working. Tried to send file and it was fine.
I can't return phone to shop because im living in different country But phone is amazing! And I loved lg. I had lg optimus one (was lost and back by good people), then lg optimus black(was burned in bonfire), lg g2(left in taxi), lg g6 (was lost) and finally lg g7. Yeah, looks like something wrong with me or these lg.. But i love it
Click to expand...
Click to collapse
I can fix it. Send me a PM.

Resolution?
Hi in having the same issues with my G7 thinq... I was wondering if you guys found a resolution for this issue?

5centr5 said:
I can fix it. Send me a PM.
Click to expand...
Click to collapse
Hello expert. I have an LG G7 ThinQ ULM phone. The problem of this phone is no phone waves signal, 3G, 4G. (a week ago that is good). I think that because the SIM and insert this SIM into other phones, this SIM still works very well. So can you show me how to fix it? Thank you very much!
Note: I was try as below but not success
Go to the Home screen;
Tap on the Phone app;
Switch to the Dial pad;
Type in (*#*#4636#*#*) and just wait – the phone should automatically redirect you to the Service mode;
Once you’ve entered this new mode, tap on Phone Information or Device Information;
Tap on Run Ping test;
Look for the button labeled as Turn Radio Off and select it;
Wait for the phone to restart;
Tap on reboot.

Problem on LG G710ULM OF WIFI, GPRS, SIM CARD READING
Hello i have the same problem on my LG G7 i buyed this motherboard but just problem again . please if you find a way to fix this. someone tell me how to do it :highfive:

hello i have the same problem. no wifi, no network.. enable radio in service menu not resolved problem... any solution??

Solution? I have the same problem

I can fix it with TV for little bucks.

got the same problem after trying to update

I've got the same problem after flashing the android 10 update. Tried android pie and oreo but nothing helped. I will really appreciate any help as this is my daily driver.

my imei wifi mac still exist and working but the problem still persist
update:
finally got my network working all you need is an original qcn backup or flash original modem_a,b partition with QFIL if imei shows null use this tutorial to change ur origin imei/MEID, im not gonna give full tutor or the file since no one answered me, good luck.

kunarbale said:
my imei wifi mac still exist and working but the problem still persist
update:
finally got my network working all you need is an original qcn backup or flash original modem_a,b partition with QFIL if imei shows null use this tutorial to change ur origin imei/MEID, im not gonna give full tutor or the file since no one answered me, good luck.
Click to expand...
Click to collapse
hi, i need help, same mistake, i dont get a solution

Hi guys, I bring a solution to this problem, I found this topic: https://forum.xda-developers.com/t/no-signal-after-crossflashing.4089281/, you understood better by reading yourselves, but basically I flashed the rom with lg up chip erase mode and my wifi/data started working again, I know this is not recommended under any circumstances but it worked for me.

However, be aware that ChipErase mode not only erases IMEI numbers, but also erases MAC addresses, EFS partition and others. In many countries if your device does not have an IMEI number or other identifiers, SIM networks cannot allow (my case in Brazil it worked) for you to register with them, i.e. in most cases your sim will not work on the phone and you will not have cell service. You may still have issues with WiFi networks as without MAC addresses your WiFi will be grayed out or the network may not allow you to connect. Also, be aware that in many countries around the world knowingly tampering with or changing your phone's IMEI numbers is against the law. IMEI number is how networks and ultimately law enforcement identify the device and its owner

kunarbale said:
my imei wifi mac still exist and working but the problem still persist
update:
finally got my network working all you need is an original qcn backup or flash original modem_a,b partition with QFIL if imei shows null use this tutorial to change ur origin imei/MEID, im not gonna give full tutor or the file since no one answered me, good luck.
Click to expand...
Click to collapse
hi can i use this method to fix my wifi problem? my wifi cant be turn on at all after so many change of roms, it does work on every firmware i used. i need a help