Lost IMEI after flash firmware.

fede451

Please, I need help. I flash last firmaware in my Umidigi S2, and I lost the IMEI. Now the phone don't work.
How can I repair it?
Thank.

Myxa7303

hello, I was able to solve this problem, and compiled the instruction. only it is in Russian http://4pda.ru/forum/index.php?s ... findpost&p=71549124

MarcinP

fede451 replied at 2018-1-1 04:25
Thanks. I'm going to try this.
Format whole flash OR Format whole flash except Bootloader?

Format whole flash.

fede451

The problem was that I choose the 'Format All + Download' when I flash the rom.
I couldn't repair the phone with SN Writer.
What can I do?

MarcinP

fede451 replied at 2017-12-28 09:46
The problem was that I choose the 'Format All + Download' when I flash the rom.
I couldn't repair th ...

Hi
Please follow this SN writer instruction and restore Wi-Fi and IMEI numbers
http://community.umidigi.com/thread-1375-1-1.html

fede451

I could repair the IMEIs with the SN tool. Now have the corrects IMEI in SIM1 and SIM2 but no signal 2G/3G/4G in neither of the SIMs.
How can I solve this problem?

MarcinP

fede451 replied at 2017-12-30 19:28
I could repair the IMEIs with the SN tool. Now have the corrects IMEI in SIM1 and SIM2 but no signal ...

Did you use correct files and IMEI numbers from label?
Did you check IMEI numbers in settings - about phone - status - IMEI informations??

capitanbelico

i got a S2 a week ago and is beautiful and works very well and smoth.
so, i wonder if there are any rom (android 7 or 8) that works in it,
the discurse about P20 not allow android 7 is not true for me, because i bought for my wife an Umidigi G 4 months ago, it is base model or low profile and inmediately update to android 7 , then why an Umidigi S2 could not do that.

MarcinP

capitanbelico replied at 2017-12-31 02:47
i got a S2 a week ago and is beautiful and works very well and smoth.
so, i wonder if there are any ...

Umidigi G not contain P20 mt6757 but mt6737 which is completely different SoC.
http://www.umidigi.com/page-umidigi_g_specification.html
Umidigi S2 will not get upgrade to next android version.

TheUnderDroid

I believe there is an engineering mode that enables one to write back the IMEI in the MTK Engineering mode

fede451

MarcinP replied at 2017-12-31 01:57
Did you use correct files and IMEI numbers from label?
Did you check IMEI numbers in settings - ab ...

Yes, I check both IMEI and there are exactly the same of the box label.
There are others numbers in Information:
IMEI SV (Slot1): 78
MIN (Slot2): unknown
PRL (Slot2): unknown
MEID (Slot2): 000000000000
ICCID (Slot2): unknown

And in SIM STATUS (the SIM works perfectly in other phone, and in the S2 before the flash):
Network: Unknown
Signal strength: 0

When I try to search netwoks didn't find any available

MarcinP

fede451 replied at 2017-12-31 05:03
Yes, I check both IMEI and there are exactly the same of the box label.
There are others numbers i ...

Be honesty to you I don't know what have you done.
Phone was working correctly before.
You performed format + download with SPFT.
Since this your signal is gone.
I hoping that you didn't try root or use different ROM (from different device) because you could brick your device.
Please use SPFT again, perform format.
Then download but only preloader.
Then download rest of partitions.
After putting only one sim card signal should be working but could be unstable.
If signal comeback please use SN writer and write IMEI numbers with WiFi (manually)
If still doesn't work i can only recommend to open phone and disconnect and reconnect battery after some time.