Develop Bugs

[Q] Dropped Signal

At first I thought it was the ROM, but I flashed 4 different roms and still the same problem. Every time someone calls me it drops my signal, all my bars go away and whoever called me cannot hear me. Idk how to fix this :/

Robdizz said:
At first I thought it was the ROM, but I flashed 4 different roms and still the same problem. Every time someone calls me it drops my signal, all my bars go away and whoever called me cannot hear me. Idk how to fix this :/
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4.4 seems to require at least the 4.3 modem baseband, you need to flash it via Odin. Be careful on the version, note the one already installed and chek which one is the normal upgrade. My m919v only worked with it's specific modem.
There's a few topic about this. Can't post link but look for this one: [ONLY FOR MDL BOOTLOADER] How to use 4.3 MK2 Modem and Retain Sound

Okay so I just returned to stock because I couldn't fix the problem .. so now i'm running android 4.2 and my wifi wont connect. Keeps giving me this when I try to turn on Wifi

"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!!
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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
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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.
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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.
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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.
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Click to collapse
and from where i can find japanese version of lg g3 sock firmware?

Slimkat bricked my modem. How do I get it working again?

Slimkat has bricked my modem. When I installed it wifi would not connect to my router, so I did some searching and found a thread on another forum where someone had a similar problem (wifi not reconnecting when going out of range and then back in range). He flashed a modem update, so I found the thread with the modem updates and installed the one for my baseband: I747UCUEMJB. After doing this, I reinstalled slimkat fully (wiping everything) and now the wifi connects, but it does not work, neither does the LTE (even though it says it has a strong signal). the signals are strong on both, but data transfer seems non existent. So, I tried flashing the modem prior to that, still did not work. I tried reflashing dirty unicorns and it still does not work (with the I747UCUEMJB modem or prior). So now my phone is basically useless and I don't know what to do. Anyone have any ideas?

countercharge said:
Slimkat has bricked my modem. When I installed it wifi would not connect to my router, so I did some searching and found a thread on another forum where someone had a similar problem (wifi not reconnecting when going out of range and then back in range). He flashed a modem update, so I found the thread with the modem updates and installed the one for my baseband: I747UCUEMJB. After doing this, I reinstalled slimkat fully (wiping everything) and now the wifi connects, but it does not work, neither does the LTE (even though it says it has a strong signal). the signals are strong on both, but data transfer seems non existent. So, I tried flashing the modem prior to that, still did not work. I tried reflashing dirty unicorns and it still does not work (with the I747UCUEMJB modem or prior). So now my phone is basically useless and I don't know what to do. Anyone have any ideas?
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Click to collapse
1). slimkat did not brick your modem.
2). what modem and bootloader version is currently on your phone?
3). can you post a link to the slimkat thread please.?
"all i can really do , is stay out of my own way and let the will of heaven be done"

mrrocketdog said:
1). slimkat did not brick your modem.
2). what modem and bootloader version is currently on your phone?
3). can you post a link to the slimkat thread please.?
"all i can really do , is stay out of my own way and let the will of heaven be done"
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Click to collapse
I managed to figure out how to get back to NE4, so my LTE and wifi work now, I just gotta remember how to re-root and reinstall CWM 6.0.4.7. I'm going to try towelroot. If you happen to have a link to CWM 6.0.4.7 bookmarked I'd appreciate if you could post it.. although I am searching right now for it. (edit: nevermind, rom manager installed it.. that was easy(TM))
http://forum.xda-developers.com/showthread.php?t=2758209 <- slimkat thread

check here for latest.
http://www.clockworkmod.com/rommanager.
"all i can really do , is stay out of my own way and let the will of heaven be done"

Use Odin to flash the latest Philz d2lte from here: https://goo.im/devs/philz_touch/CWM_Advanced_Edition/d2lte/
Copy supersu to your SD card.
Flash recovery, boot to recovery, flash supersu, and you are not rooted.

My phone gets really bad reception everywhere with 3rd party ROM.

I've got the T-Mobile M919 S4 and I have a 4.4.4 ROM on it (Insane Hybrid).
I've got the latest NK2 Baseband and I also don't want to upgrade to Lollipop since I did before and it was lag lag lag lag lag after a week or so.
I've noticed recently that it is getting very poor reception.
My buddy's S3 will have two bars and mine will show no service. Or it'll have bars but no data service. Or I won't be able to call out.
There also seems to be an unusual amount of spots where I have no service.
When I do have service, the data can get really really slow.
My GPS lock also frequently gets lost during navigation.
Any ideas? Do I need to flash a kernal, modem, or radio or something? Which ones?

fuzzybabybunny said:
I've got the T-Mobile M919 S4 and I have a 4.4.4 ROM on it (Insane Hybrid).
I've got the latest NK2 Baseband and I also don't want to upgrade to Lollipop since I did before and it was lag lag lag lag lag after a week or so.
I've noticed recently that it is getting very poor reception.
My buddy's S3 will have two bars and mine will show no service. Or it'll have bars but no data service. Or I won't be able to call out.
There also seems to be an unusual amount of spots where I have no service.
When I do have service, the data can get really really slow.
My GPS lock also frequently gets lost during navigation.
Any ideas? Do I need to flash a kernal, modem, or radio or something? Which ones?
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Click to collapse
Try updating your baseband. That sometimes solves it. Here's the link:
http://forum.xda-developers.com/galaxy-s4-tmobile/general/firmwares-official-mdl-mk2-nb4-t2816508

Saturny said:
Try updating your baseband. That sometimes solves it. Here's the link:
http://forum.xda-developers.com/galaxy-s4-tmobile/general/firmwares-official-mdl-mk2-nb4-t2816508
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Click to collapse
Thanks, I'll give those a shot. I'm going to flash this and see what happens:
http://forum.xda-developers.com/gal...stock-base-4-4-4-nk2-rooted-deodexed-t2990478
I'm still a bit confused on some of the terminology and what's bundled with what.
- The "modem" is the same as the "radio", right? It's a driver that controls how the device deals with cellular voice and data signals. I can find the version of my modem/radio by looking at the last letters in my "baseband."
- The modem/radio driver is usually bundled with a ROM, right? So the ROM that I flashed above will also update/replace my current modem/radio driver?
- Modem/radio drivers can be separate from the ROM itself. If I use a 4.4.4 rom that has NK2 bundled, I can still flash just a NH4 radio using ODIN onto the old ROM and be ok, right?
- Where does the kernal come in? I'm assuming the kernel is bundled with the ROM and the kernal is only in charge of the switching between cellular and WiFi data, right?

That's the price you pay with custom roms, sometimes your lucky and everything works the way it's supposed to sometimes it doesn't.
Run phone for a day and make sure everything works properly after flashing back to stock before attempting custom again.
If you need your device to function as a reliable phone, making and receiving calls and messages you may have to rely on stock roms.
Pp.

fuzzybabybunny said:
Thanks, I'll give those a shot. I'm going to flash this and see what happens:
http://forum.xda-developers.com/gal...stock-base-4-4-4-nk2-rooted-deodexed-t2990478
I'm still a bit confused on some of the terminology and what's bundled with what.
- The "modem" is the same as the "radio", right? It's a driver that controls how the device deals with cellular voice and data signals. I can find the version of my modem/radio by looking at the last letters in my "baseband."
- The modem/radio driver is usually bundled with a ROM, right? So the ROM that I flashed above will also update/replace my current modem/radio driver?
- Modem/radio drivers can be separate from the ROM itself. If I use a 4.4.4 rom that has NK2 bundled, I can still flash just a NH4 radio using ODIN onto the old ROM and be ok, right?
- Where does the kernal come in? I'm assuming the kernel is bundled with the ROM and the kernal is only in charge of the switching between cellular and WiFi data, right?
Click to expand...
Click to collapse
This. Would anyone please answer the above questions above as I am also looking for some answers to the questions above?

Elephone p8000. I think i messed up bad.

Ok so i got the phone is stock form with android 5.1 and a few bugs common to this phone( screen flicker and poor wifi speed). I read more than a few forum posts that said flashing the rom to various other roms would fix it and this wasn't my first modded phone so i did. I am not too sure these flashes took as android looked and acted the same as well as had some of the elephone software. It did however screw up the phones imei. after a google search i reset the imei. I no longer have the invalid imei message but now i have a big NO SERVICE message. This is the us market phone. I really hope you cant somehow change the frequncy bands by flashing the rom. any help would be awesome.
Ps. the screen still flashes.
edit: ok tookjfer671's advice and flashed the us rom. it killed the imei (again) so i reset the imei. now somehow the imei numbers got on the wrong sim cards. They are backwards. will this affect anything ? they wont reset at all.
Edit 2 I guess you can mark this one as solved. The reflash with the us ROM worked but the backlight still flickers. Not a launcher issue the entire screen goes dark and its random.

http://forum.xda-developers.com/ele.../rom-p8000-version-b-baseband-l1-mp3-t3322615
Yup, I believe the US version B doesn't have any other alternative custom roms to flash...although you can root. Version A (Asia/Europe) regions have a whole lot of roms to choose from...it would've been nice if we could flash those as well and keep the baseband out of it so we don't lose network connections.
Anyways...I flashed as well a version A rom and found myself with a no connection to my network (everything else worked fine), flashed the link above and got device back to full working order. Hope it helps you out.

jfer671 said:
http://forum.xda-developers.com/ele.../rom-p8000-version-b-baseband-l1-mp3-t3322615
Yup, I believe the US version B doesn't have any other alternative custom roms to flash...although you can root. Version A (Asia/Europe) regions have a whole lot of roms to choose from...it would've been nice if we could flash those as well and keep the baseband out of it so we don't lose network connections.
Anyways...I flashed as well a version A rom and found myself with a no connection to my network (everything else worked fine), flashed the link above and got device back to full working order. Hope it helps you out.
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Click to collapse
i'll give it one more shot. btw did you use flashtools or recovery?

Sorry for late reply...I was rooted with the A version and on TWRP recovery, flashed stock recovery then flashed B version and now on CWM recovery. All using flashtools.