UMI PLUS wont downgrade from Nougat.. Help needed..

ozaziz

Hello,

I have a problem with my brand new Umi Plus. My phone came with rom M 20161010. I successfully flashed to N 20161228. Now i want downgrade to either M 20161009 or M 20161019. I use SP Flash.

1st. Download only says success. Phone boots up well, the screen blinks up BUT with a total black screen.

2nd. Firmware upgrage says success. Phone boots up well, the screen blinks up BUT with a total black screen.

3rd. Format all + Download says success. Phone boots up well, the screen blinks up BUT with a total black screen.

Before my each attempt , i upgrade to N 20161228 again to make sure that phone is in a normal state.

I need get back to Marshmallow. Please help.

MarcinP

Please follow this instruction but please skip step 6 as you need check all partitions boxes.
Before flash you can perform factory reset (settings - backup and reset - factory data reset) if phone is starting of course.
If this not help you need firstly flash only preloader and then all rest. Sometimes could happen that you need upload one by one partition.

ozaziz

MarcinP replied at 2017-1-7 17:22
Please follow this instruction but please skip step 6 as you need check all partitions boxes.
Befor ...

Sorry but is your message supposed to contain additional information because you ask me to follow instruction and skip step 6 but there is no step 1, or 2, either 3..

MarcinP

ozaziz replied at 2017-1-7 20:18
Sorry but is your message supposed to contain additional information because you ask me to follow  ...

Sorry I didn't add link for SPFT updating procedure
http://community.umidigi.com/forum.php?mod=viewthread&tid=11
And here you have SPFT, ROM and driver
http://community.umidigi.com/thread-5069-1-1.html

Persizi

\n\n

MarcinP replied at 2017-1-7 17:22

Please follow this instruction but please skip step 6 as you need check all partitions boxes. Before flash you can perform factory reset (settings - backup and reset - factory data reset) if phone is starting of course.

I've tried those thing, but nothings changed. Still got the black screen with the Marshmallow ROMs.

vh_karting

There's somebody who gas ported another ROM to Umi Plus? I mean Cyanogen, Flyme or some other Mediatek based Rom

MarcinP

Persizi replied at 2017-1-23 21:14
Edited by Persizi at 2017-1-23 21:17 \n\n
I've tried those thing, but nothings changed. Still got t ...

You can change from firmware upgrade to format + download on SPFT. Then probably  you need restore your IMEI numbers. To do this follow this link
http://community.umidigi.com/thread-1375-1-1.html

Persizi

I already tried that too and it doesn't help, but yes, I had to restore the IMEIs on my phone after that.

fakherbadareen

??????????????????

M4sterguru

Persizi replied at 2017-1-24 07:22
I already tried that too and it doesn't help, but yes, I had to restore the IMEIs on my phone after  ...

I done too, and my imeis are 1111111111 and slot 2 is 2222222222222, how did you restore the imei's?