Database Develop

LGP990 IMEI problem

as my title says after doing a couple of installs of roms to see what i liked,my IMEI on my phone has changed and when ever i go back to original rom LG software will no longer update my phone to latest android.i have tried to use nvflash to try and restore phone and smartflash but the IMEI still stays the same and not the one that my phone should be.is there anything i can do,thankyou.
ok i solved problem with link in this forum on how to do it using hyperterminal in windows to get it back to its original IMEI and it worked.

[Q] My IMEI was deleted. Factory data reset doesn't help.

Hi All,
Something really strange just happen with my GT-I9295.
So I got the 4.2.2 version from the box. I recived an automatic upgrade which I have accepted and installed. But strangly after installation the version still 4.2.2. One week later the IMEI number just disapeard durring the night and cannot recover it anymore.
Network
Unknown
IMEI
Unknown
I didn't installed any custom ROMs, nothing.
I found that the IMEI number should be in EFS folder after factory data reset, but this file is missing there.
I have my IMEI under the back-cover, but how I can re-enter it in my phone ?
I heard the param.bin for gti9295 could help ? Could somone drop it here ?
I bought the phone 2 weeks ago
When I tried to repair it I have root it. How I can check my KNOX counter to see if I can send it back to Samsung ?
Thanks in advance and sorry for my english!

Unknown IMEI and locked network after trying to recover

Hi everyone,
Hope you can help me solve this, cuz I'm way out of my knowledge..
My phone broke the lcd and was out of action for a few months.. After I finally got a replacement screen, the phone wasn't working and said IMEI unknown, I've tried to flash a few roms via recovery but nothing. So I just went crazy and flashed it via kies. It worked, the imei appeared but the phone was locked again..
Back to the shelf a few weeks until I could afford to pay for unlock.. When I picked it up, it was unknown IMEI again and the guy at the shop basically told me he couldn't help.
Was he right? I refuse to believe I can't recover the phone.. Can you please help?
Thanks!

Anyone?

Are you sure is that phone imei is not blocked, because provider may block if it is stolen reported.
I had the same problem after changing display IMEI unknown
But somehow it was saved from 'unknown IMEI' I don't know how.
restored efs from previous backup (twrp & philz recovery)
- no imei
I flashed stock
- no IMEI
asop
- no imei
tried different modems
again stock
- suddenly its worked
(some users reported flashing different modems worked for them)

Yes I'm sure imei is not blocked by network. Have a friend that bought a phone which he discovered the hard way it was stolen, anyway, blocked imei by network behavior is completely different.
This is what happened to me first time only valid imei after kies rom update.

madz78 said:
Yes I'm sure imei is not blocked by network. Have a friend that bought a phone which he discovered the hard way it was stolen, anyway, blocked imei by network behavior is completely different.
This is what happened to me first time only valid imei after kies rom update.
Click to expand...
Click to collapse
If you see imei again, Make a backup using pc, there is a guide in development section. So, you can easily restore again.

not registered on network

Hey guys,
since i went to rome last week i got the "not registered on network" error. Here are some details about my phone:
model: SM-G800F
android: 6.0.1
rooted? yes! i rooted the phone yesterday to follow some guides to repair it. didn't work
baseband: g800FXXU1CPL1
kernel: 3.4.39-8954887
build: MMB29K.G800FXXU1CPL1
warranty? expired early 2017
It's my first android phone, so i got really low skills with repairing it.
What I already did:
test another sim in the S5 Mini
test the sim from the S5 Mini in another phone
facotry reset
Tried to do a manual OTA Update: I always get the error that there is a network or server error
smart switch emergency recovery: doesnt't recognize my phone
flash 6.0.1 without repart via ODIN
coincidentally i saw that the IMEI in the phone (*#06#) differs from the one behind the battery :/ I think this could be the error, but i don't know how to fix it.
Thanks in advance for your help

That wrong IMEI even remains after i deleted the EFS Folder oO

Not registered on network imei issue
Hi There,
Did you ever get a fix for this issue as I have exactly the same problem, my SM-G800F IMEI now also shows as - IMEI 350695200123951-01 which is for a blacklisted NOKIA 6310. If anyone can supply an absolute beginners guide for me as to how I can get my original Imei back that would be fantastic.
I am just a user of an android phone and have zilch experience of tinkering with them.
I have seen reference to things like Odin and flashing firmware and am quite happy to give it a go myself and learn
I will post this on a few other threads that list the same issue as I am desperate to get this fixed now as is a waste of a perfectly good phone !!
Cheers.

Baseband + IMEI Unknown

Hello
I recently lost my s10 and now got my hands on a new one (exact same model)
I thought i was smart and restored a TWRP backup from the lost phone on the new one
I guess the mistake was that there was also the efs partition included in the backup
The rom (newest beyond) works without problems but the sim card is not recognized and baseband and IMEI both show unknown
so i flashed the original samsung firmware with odin but even then i have baseband and IMEI unknown
Did i just screw my new s10 or does anyone have an idea?
any help much appreciated

Anyone has an idea what I could try?
Or did I really kill my phone for good

My guess is that you may have wiped out the new phone specifics, such as IMEI and other things. I'm not sure if you can recover that in some way, or if you need to just find a way to get your old IMEI back. I would probably try to restore my old IMEI if I can (see if you can identify the old one from your carrier's website or something, for example).

schwinn8 said:
My guess is that you may have wiped out the new phone specifics, such as IMEI and other things. I'm not sure if you can recover that in some way, or if you need to just find a way to get your old IMEI back. I would probably try to restore my old IMEI if I can (see if you can identify the old one from your carrier's website or something, for example).
Click to expand...
Click to collapse
I know the original imei, it's printed on the phone but how could i flash that to my phone? Seems to be impossible

There are ways, but they are not allowed to be discussed here on XDA. I've seen Youtube videos that cover it as well.