Serial Number 00000 and no service after updating G7102 Duos - Galaxy Grand 2 Q&A, Help & Troubleshooting

Hi,
I recently got the OTA update and updated my grand 2. After the update my serial number shows "0000000" and I can't connect to the network on both Sims.
Things I have tried and failed
1. Flashed a stock firmware from different regions through ODIN
2. Rooted and flashed custom Roms
I would really appreciate your help
Thanks

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hello guys thank's for reading my Thread
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the imei was lost and when i tap on *#06# it just tell me NULL\NULL so i tried to restore it to the original UAE firmware but with no luck
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That's a modem problem.

[Q] hey xdadev users

Hello guys i have a galaxy s4 i9505 i rooted my device and installed costum rom phoenix rom v10.0 on my GS4 and than after 2 months i reinstalled stock rom 4.4.2
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Please post the following information:
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note 3 baseband unknown after lollipop official update

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I've just also had problems flashing firmwares,
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http://forum.xda-developers.com/showthread.php?t=2740676
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n910f network not registered & imei changed but > not registered also :(

hi all
I make change the serial and network also did not work
What is the solution
I am now on kitkat 4.4.4 rooted
any help ?

			
				
Same Issue but a N910U with a Lollipop 5.1.1 STOCK Rom from New Zeland (NZC) and without "Don't" Image, only Emergency Calls and Network not Registered.

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