INSTRUCTION TO DOWNGRADE TO 6.0 =>FOR ALL PEOPLE WITH ISSUES ON LAST 7.1.1

speedycvc

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For all people with loop reboot or any others issues:


Step 1
Install TWRP  +   ROOT YOUR PHONE

http://community.umidigi.com/thread-2962-1-1.html

Step 2
Do a bakup with titanium backup for all apz => don't forget to set good directory ( external SD card) + save only personnal apz+ apz data
Do a backup of your personnal data ( music , docs, photo/pictures ) and SMS MMS backup

Step 3
Go to TWRP
ADVANCED FORMAT => CACHE DALVIK + CACHE + DATA + USER ( you loose your data ) + SYSTEM

Step 4
AFTER THAT YOU CAN FLASH YOUR PHONE ON ANDROID 6 or 7.1.1.
For me 7.1.1 still have issue so I recommend you to reinstall old stable android 6.0

Last good release on 6.0 => http://community.umidigi.com/thread-7333-1-1.html

Step 5
Restore all your apz data with Titanium Backup + SMS/MMS backup + personnal data

speedycvc

I hope that we'll get a better update.
Thx to benbacsi to report all issues to engineers.

I hope that my post will help people who have issues on 7.1.1 to go back on 6.0 stable release.

prakasam

thanks for info ..

speedycvc

You're welcome ;)

bencebacsi

Sorry but only flashing an Android 6 ROM in Firmware Upgrade mode is quite enough. You don't need to install TWRP or wipe anything. The flasher app will wipe each partition before flashing the new ones. Obviously, you can't keep your user data when downgrading to Marshmallow but the userdata partition also will be wiped, then overwritten by the empty stock partition.

speedycvc

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bencebacsi replied at 2017-6-14 09:36
Sorry but only flashing an Android 6 ROM in Firmware Upgrade mode is quite enough. You don't need to ...

Thx for your help @bencebacsi , I already know that it do it autoamaticly when using flahstool but I allways prefer to wipe partition by myself.
It's an old habit !
Do you have feedback from devs for update for all issues listed => GPS - camera - battery drain
Thx

bencebacsi

speedycvc replied at 2017-6-16 05:35
Edited by speedycvc at 2017-6-16 05:37 \n\n
Thx for your help @bencebacsi , I already know that it  ...

Usually the only feedback comes from them is a released update. ;)

Tapete

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bencebacsi replied at 2017-6-14 09:36
Sorry but only flashing an Android 6 ROM in Firmware Upgrade mode is quite enough. You don't need to ...

Could I also use manual OTA method? Thx in advance for info.

And thx to speedycvc for starting the thread.

MarcinP

Tapete replied at 2017-9-1 20:53
Edited by Tapete at 2017-9-1 20:55 \n\n
Could I also use manual OTA method? Thx in advance for info ...

You can use OTA only for upgrading not for downgrading!
Here is SPFT instruction
http://community.umidigi.com/thread-11-1-1.html
And here all available ROMs
http://community.umidigi.com/forum-150-1.html

Tomastec

the network problem that has umidigi zpro, when it will be solved ?, I still have to restart when I leave a wifi network, please look for a solution