Database Users

[Q] GT I9500 Null IMEI/Unknown baseband

Am having this issue from quite a day.I installed lollipop offical firmware provided by blackcat..
i wanted to revert back to kitkat so i flashed stock firmware from sammobile everything is working great except for imei baseband issue please help me.I already tried flashing modems.

Are u have a Backup from your imei and efs?

No brother i do'nt have anything

No solutions yet for those who wish to revert to kitkat.
But a workaround is to use the Lollipop official leaked modem with any kitkat rom.
Heres a link http://forum.xda-developers.com/showpost.php?p=58296174&postcount=2746

ss
But i have reverted back to kitkat :/ problem is imei only :/

TYTY
Ty buddy that modem from lollipop works..

[Q] Null Imei and Unknown baseband after downgraded to Kit Kat

Hi Community,
Phone is GT i9500 - I am in the UK, the phone is unlocked
can you help please. I have just downgraded from Lollipop to Kit Kat via Odin.
All appeared well except that it no longer works as an actual phone!! The Imei is now showing a NULL and Baseband appears as UNKNOWN.
Thanks In Advance
AJ

Here iS the Fix
http://forum.xda-developers.com/galaxy-s4/general/gt-i9500-fix-null-imei-signal-downgrade-t3168137

ajcm.whitfield said:
Hi Community,
Phone is GT i9500 - I am in the UK, the phone is unlocked
can you help please. I have just downgraded from Lollipop to Kit Kat via Odin.
All appeared well except that it no longer works as an actual phone!! The Imei is now showing a NULL and Baseband appears as UNKNOWN.
Thanks In Advance
AJ
Click to expand...
Click to collapse
You need to flash a Lollipop modem. Or you could reflash the Lollipop firmware.
I wouldn't flash the link above you. He has no description at all of the file.

Lennyz1988 said:
You need to flash a Lollipop modem. Or you could reflash the Lollipop firmware.
I wouldn't flash the link above you. He has no description at all of the file.
Click to expand...
Click to collapse
Just as OP, I downgraded to kitkat, in my case because of the terrible battery life S4 gets in lollipop. I have spend days trying to fix this, I have tried all kinds of wipes and ROMs, until I got a decent lollipop ROM and flashed just the modem image, and the problem was fixed!
I thought I had wiped my IMEI, because of the IMEI null and Baseband UNKNOWN issue, but as soon as I flashed the corresponding modem, I "got it back". I do recomend you however, to backup your EFS partition, because apparently you *can* wipe your IMEI when you flash ROMs.

[N910F] Downgrade from POF2 to ANK5?

Is it possible to downgrade the N910F from Lollipop (POF2) to KitKat (ANK5)?
YES, IT IS POSSIBLE.
Before yesterday I've never used KitKat on my Note4.. When I bought the phone I had no time to try it (KitKat) because I've straight rooted it and flashed a Lollipop based ROM.
Then yesterday I wanted to try a KitKat based ROM and I've lost about 30/40min looking in the forum for the answer to the question Is it possible to downgrade the N910F from Lollipop (POF2 or whatever) to KitKat (ANK5)?
I could not find a proper answer.. there was this BOF5 bootloader can not be downgraded but it was always in a "strange contest" and it did not convinced me.. after 30/40min I said ***k *t and I just performed a full wipe from TWRP, flashed ANK5 modem and bootloader via ODIN, and installed the KitKat ROM from TWRP.
Sorry for the Question/Answer but this thread may will help someone to save time.
P.S.: My KitKat adventure lasted only 10min... It looked ugly to my eyes! Went back on POF2 and now trying out AICP

_mone said:
Is it possible to downgrade the N910F from Lollipop (POF2) to KitKat (ANK5)?
YES, IT IS POSSIBLE.
Before yesterday I've never used KitKat on my Note4.. When I bought the phone I had no time to try it (KitKat) because I've straight rooted it and flashed a Lollipop based ROM.
Then yesterday I wanted to try a KitKat based ROM and I've lost about 30/40min looking in the forum for the answer to the question Is it possible to downgrade the N910F from Lollipop (POF2 or whatever) to KitKat (ANK5)?
I could not find a proper answer.. there was this BOF5 bootloader can not be downgraded but it was always in a "strange contest" and it did not convinced me.. after 30/40min I said ***k *t and I just performed a full wipe from TWRP, flashed ANK5 modem and bootloader via ODIN, and installed the KitKat ROM from TWRP.
Sorry for the Question/Answer but this thread may will help someone to save time.
P.S.: My KitKat adventure lasted only 10min... It looked ugly to my eyes! Went back on POF2 and now trying out AICP
Click to expand...
Click to collapse
When you flashed that lollipop-based rom, that was a custom rom I assume? Did it contain a bootloader? Maybe you were still on the KitKat bootloader.

GidiK said:
When you flashed that lollipop-based rom, that was a custom rom I assume? Did it contain a bootloader? Maybe you were still on the KitKat bootloader.
Click to expand...
Click to collapse
Yes, it was a custom ROM. No, it didn't contain bootloader. No, I wasn't on the KitKat bootloader, for sure my bootloader was POF2. Trust me if I tell you that before the KitKat ROM I've flashed too many Lollipop ROMs with many Lollipop bootloaders.

I'm trying to do this but i fail in every action at odin with this SW rev. check fail. device 2 binary 1 in my SM-N910C and in odin its fail... ( i gets this after recovering my phone at kies after a bootloop )

i have a note 4 n910c with L.P 5.1.1 how a can downgrade to K.K or 5.01 L.P always fail when i try with odin. help please

Upgrading lp to mm, now I can't install custom roms

Don't Know what I am doing wrong. This is my forth phone I've rooted and installed custom roms. I just upgraded from lollypop to Marshmellow, I was running moar rom on lollypop, no problems.
After I upgraded I lost root access so I re-rooted. But now I can not seem to have success on installing a new rom, I've tried two different roms. I follow the instructions and it begins to load and just sits there, even after a good 20 minutes or so. I'm figuring I'm missing something here, please help. My stasts: ,Sprint carreir, model sm-G900P, build MMB29M.G900PVPU3CPCA

macmovr said:
Don't Know what I am doing wrong. This is my forth phone I've rooted and installed custom roms. I just upgraded from lollypop to Marshmellow, I was running moar rom on lollypop, no problems.
After I upgraded I lost root access so I re-rooted. But now I can not seem to have success on installing a new rom, I've tried two different roms. I follow the instructions and it begins to load and just sits there, even after a good 20 minutes or so. I'm figuring I'm missing something here, please help. My stasts: ,Sprint carreir, model sm-G900P, build MMB29M.G900PVPU3CPCA
Click to expand...
Click to collapse
You can't flash lp roms anymore since you have mm bootloader and modem

Hbk6699 said:
You can't flash lp roms anymore since you have mm bootloader and modem
Click to expand...
Click to collapse
Yes he can .. he just need to flash the lollipop modem and bootloader

Supernatural77 said:
Yes he can .. he just need to flash the lollipop modem and bootloader
Click to expand...
Click to collapse
Duh! That's why i said he can't flash lp rom with mm bootloader and modem.

Ok, sorry for being such a dumb ass, but can someone walk me through this. I only know enough to be a total danger to myself and don't want to really f something up that I can't fix.

Sm g 530 h imei damaged please help!!!

Hi dear all
Please help me about my phone's imei
I flashed the s7 style system mui. Then my phone was stuck on Samsung logo. Then I flashed TWRP and tried again but not successful. Then I wiped cache , system and other things. Then my phone stuck on galaxy grand prime logo.
Then I flashed stock ROM 5.0.2. So my phone lost imei. And both the sim cards slots are not working.
And now I installed MAXICM ROM but still sim cards are not working. So please guide mW that how it will be repaired or I bricked my phone?
Screenshop Of My PHone's IMEI is Below......

maamiradina said:
Hi dear all
Please help me about my phone's imei
I flashed the s7 style system mui. Then my phone was stuck on Samsung logo. Then I flashed TWRP and tried again but not successful. Then I wiped cache , system and other things. Then my phone stuck on galaxy grand prime logo.
Then I flashed stock ROM 5.0.2. So my phone lost imei. And both the sim cards slots are not working.
And now I installed MAXICM ROM but still sim cards are not working. So please guide mW that how it will be repaired or I bricked my phone?
Screenshop Of My PHone's IMEI is Below......
Click to expand...
Click to collapse
How come you did this? Which was your older baseband nd which firmware did you flash?
Install the stock rom but before that show the baseband version.

how i will find baseband version

Has.007 said:
How come you did this? Which was your older baseband nd which firmware did you flash?
Install the stock rom but before that show the baseband version.
Click to expand...
Click to collapse
i have no information about my old firmware and i flashed the stock 5.0.2 lollipop Rom of Russia.
And where i will find baseband Version???
How I install STOCK ROM i downloaded this STOCK ROM but not installing
Click Here for the ROM I downloaded From SAMMOBILE
but in ODIN it fails, that's WHY?

maamiradina said:
i have no information about my old firmware and i flashed the stock 5.0.2 lollipop Rom of Russia.
And where i will find baseband Version???
How I install STOCK ROM i downloaded this STOCK ROM but not installing
Click Here for the ROM I downloaded From SAMMOBILE
but in ODIN it fails, that's WHY?
Click to expand...
Click to collapse
Go To Your Phone Nd Take The Screenshots nd then post over here. If you've corrupted your IMEI then you're in a deep problem! Give me the link of 5.0.2 Russian Stock rom which you flashed.