I bought and Note 3 and after change rom i did a lot of backups of IMEI, including, the own entire rom.
Well... After change the rom, phone stays with no network (imei null)
So... I tried to solve the problem, cause, off course, I had backups... What a **** of backups...
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Backup with the app called "EFS Backup", for example...
But when I tried to restaure the backup of IMEI with the app called "Partitions Backup"...
With the 4 highligths partitions: modem, mst1, mast2 and EFS...
DIDN'T WORK... Continues without network...
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I also used others apps like "Samsung Tool" that only did a backup called "efs.img"... So I tried to restaure this, and the same sh***, no network, no imei, baseband unknown etc...
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I also did the backup of entire rom with the app called "Online Nandroid Backup"...
I tried to restaure the backup of the rom with the app "Nandroid Manager"... O sh*... I don't know why the developers like to did 2 or 3 apps for the same thing! Wich is BACKUP AND RESTORE IMEI.
I had the file ".zip" inside the file "backup" inside the file "clockworkmod"... But the unique thing that this app Nandroid Manager do is to reboot the system... Seems like a joke of the developer of this app...
What a piece of sh*
So I tried to restaure the zip file with the rom with the app Nandroid Manager and like I said it didn't work... So I tried to restaure the rom with philz recovery, and after with CWM installed, the same thing...
So I entry in recovery and...
With Philz Recovery, appears an error like "error with M5 file sun"... Or something like that
With CWM appears: installation aborted
After I also installed the TWRP and I tried to install the zip file backup, and give an error too...
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What I learn with this???
These apps don't works properly... And when I need these... Nothing works... It's only a joke of us...
And Samsung never more!!! It also happened with my S4 octa...
Samsung is a sh* of enterprise that did a fragile system of IMEI, for us that like to change rooms, loose it with just an update...
Samsung uses metal rim, but a kind of paper of IMEI, that dissolves with a simple humidity... A fragile thing to do a joke with us... A phone that can't make calls...
Samsung uses a lot of partitions of IMEI, to made us crazy with that, and with their "functionally" phones... "Functionallys" but without calls!
Finally, before did all of this, I tried to reinstall the last rom installed on my phone, and I also tried at least five different modems...
Nothing works... And also the backups of IMEI or Rom...
Well guys, I think this problems of imeis occurs more with Samsung than the others enterprises like Motorola etc.
SAMSUNG NEVER MORE. And my confidence with this backups also never more...