Repair IMEI with SN Writer (for almost all UMI(DIGI) phones)

bencebacsi

Gd7104 replied at 2017-4-7 01:58
i don't have my original imei numbers
i bought phone at tomtop and imei is not seen on purchase oper ...

You can find them on the box label.

Gd7104

cds is not appearing
i found way to insert imei ... invalid
sn writer is not working ...no BPL....
no fail message...first green dots appear and process stops...after a while it shuts down
what can i do to get imei again in my phone?
really strange to have so many issues with upgrading

Gd7104

no box anymore
i could never image loosing imei!
thanks for your answer

bencebacsi

Gd7104 replied at 2017-4-9 01:11
no box anymore
i could never image loosing imei!
thanks for your answer

If you've lost everything that contained your IMEI numbers, you can use this site: https://dyrk.org/tools/imei/
Proper using of SPFT or updating your phone via FOTA never lead to lose your IMEI numbers.
When using SN Writer, sometimes you have to disconnect and reconnect your phone at the beginning of the flashing process, when it's switched into META mode. The tool itself can work with any UMi models with MTK processor.

Gd7104

ok
but can you please tell me which file i have to use as md1 and the other one in file of rom 20170308
i have new imei for this link already
bt and wifi numbers to put in the frame?
OR,
if you know somebody accepting to connect on my computer with remote access and manage these steps remotely i am even ready to pay for it.
thanks a lot for you assistance
Greg

bencebacsi

Gd7104 replied at 2017-4-9 06:16
ok
but can you please tell me which file i have to use as md1 and the other one in file of rom 20170 ...

Download the SPFT ROM file from here: http://community.umidigi.com/thread-6967-1-1.html
You can find the DB files in the .rar file
You can autogenerate the BT and wifi addresses.
Sorry but we have no capacity for such remote assistance.

Gd7104

great
i tried a las time
understood i must activate by selecting above in the frame bt and wifi auto generate
i also understood the db file is an EDB file
i repeated several times as you wrote process until phone connected properly
i invite you to slightly improve sn writer procedures regarding my above remarks:
EDB file
activate the bt and wifi in the frame opening when selecting autogenarate from menu identification: this frame is not showing in the sn writer how to do
indeed , it's needed to retry even if we get error message to get operation done
it works fine
thanks
Greg

Hexabit

Hi,
First, thanks for the great tutorial.
I tried rewritting IMEIs on my UMI eMax but as you mentionned:

At some devices (UMi eMAX for example) the NVRAM partition is write protected. In that case you have to format the NVRAM partition or the whole flash chip to be able to use this tool.

In the logs I found:

Internal_TranslateNVRAMErrCode(): 24 --> Cannot write OTP region twice.

Do you know how to "unlock" the nvram ? Is there any guide ?
Best regards

bencebacsi

Hexabit replied at 2017-4-15 20:39
Hi,
First, thanks for the great tutorial.
I tried rewritting IMEIs on my UMI eMax but as you mention ...

Sorry but you cannot do that. The easiest and most risk-free method is to format the whole flash chip (except the boot loader) with SP Flash Tool, then flash the stock ROM and after that, use the SN Writer Tool.

stajgrpavel

good work :-) Thank you