After flashing & restoring several time knock on & network signal crushed - General Questions and Answers

I have rooted my LG G2 LS980 kitkat 4.4.2. I make a TWRP backup (AutoRec) & than wipe & flashed CM12 lollipop on it. but I can't like This CM12 lollipop so I restore my backup (kitkat 4.4.2), after that my knock on function not working. Than I tried to flash custom rom of lg g2 ZVG but my phone failed to rebot with ZVG. Than I again restore the backup (kitkat 4.4.2). Now my network signal become unstable. network singnal showing cross sign frequently after few seconds. Please help.

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[Q] Lost signal after flashing Kitkat custom ROM

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nightmare trying to get CM12 to boot on 4g XT1039 - no calls but data works on stock

Hello all
I recently got a Moto G 4G XT1039 in the UK which was on the o2 network, which I've unlocked.
I want to use my Three network simcard, which works fine on stock firmware, BUT the baseband is o2's one, so with my three sim card the data works, but calls doesn't "mobile data not available" so...
Can I flash a stock standard baseband?
I've tried unlocked bootloader and installed CM12 but it get stuck in bootloop at the cm animation, so i've restored to stock... I'm oblivious what to do next?!?
Any help would be appreciated...
I just want calls to work!
Thanks in advance.
Ok i've read I need to intall cm11 first to get it to boot as cm12 just stuck in boot animation but for the life of me cant find any cm11 download links, anyone know any?
Thanks
Hi, please help, moto g xt1039 works fine on 2g calling.. but when select 3g or lte,
it doesn't connect call, always call ended automatically.. any solution please..??
Did you ever update the phone to 5.1 stock ?, if so it should work fine. If however you went straight from KitKat to CM12, that's your problem, the radio firmware needs to be updated. Links to it are in the stock image threads on this board.

Weird Logic Board Issue??

I am 100% sure the phone is a D800 (per the logic board )
If I try to flash D800 or D801 STOCK .tot firmware....they both will show null/unknown baseband, imei, etc. AND constantly reboots
If I flash LS980 STOCK .tot.....the phone shows the information (not null/unknown/blank) AND doesn't have the rebooting issue
(FYI: after booting into the stock ls980 zvc rom to get uninterrupted adb access to the phone, I changed the imei using QPST tool, to the imei numer that is on the inside of the backcover, because it was showing a wierd imei like 35030526000000.....Now everytime I flash the stock ls980 rom, the imei seems to reads correctly...so im guessing that stuck)
I also tried to flash custom LP based roms......I flashed the LP bootstack, then Blisspop.......and It bootloops right at the blisspop logo starts to appear (this is from stock .tot fresh installs....cleaned wipe) then keeps looping to LG logo then partial blisspop boot animation.
So, the common denominator seems as if the phone/logic board refuses to let any D800 or D801 baseband be flashed properly to it......So far ZVC (stock sprint kit kat) is the only baseband that sticks and lets it run any roms without rebooting.
I've never seem this issue before.......is this phone banned, blacklisted or something?

My LG G3 D851 is not detected on the PC

my cellphone lg g3 d851 after the custom rom the twrp is gone and can't be reinstalled the twrp. I want to go back to stock ROM because in this os lineage my cellphone is missing sinyl 4g and 2g. after I tried to flash into stock ROM, a problem occurred that was not detected on the PC even though it was according to instructions in many forums. someone please help me.

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