[GUIDE] Downgrade from OFFICIAL Oreo to Nougat

7th February 2018 07:57 AM 5 Thanks
wolfyapl Member
-Just download any zip OTA from December and before that, in my case I used this: https://yadi.sk/d/jfyLmpFH3Qomg8
-Put in on top of your sdcard and reboot to recovery
Quote:

Turn off your phone. Charge it. Hold Vol up and Power for about 10 seconds. At No command screen briefly press Vol Up and Power again

-Flash that zip file you just downloaded. At some points it will say "Installation aborted"
-Congratulations! Now you are ready to reflash your phone with any Nougat nb0 rom as your sbl1 and aboot is downgraded
-Power off your phone and plug out. Open OST LA 6.0.4, load your rom and then proceed to flash it
-Links go here: https://mega.nz/#F!1ENgnThL!FyL9uYCC3Dq-16elThKAPg
-Open OST LA after patching with coressponding OnlineUpdateTool.exe, Next, select your nb0 rom, plug in your now turned off phone, Next
-Go have some coffee as it takes you for about 5 minutes
-As your phone boots up, wipe data then remove FRP the way you want
Quote:

DO NOT USE 6.1.2 AS IT NEED AUTHENTICATON! PATCH THE OLD VERSION WITH NEWER EXE WON'T WORK!

Special thanks to @SimGa, @heineken78 and @the_laser for their discussion which made it available to downgrade this phone!
Attachments:
D1C-0-3320-emmc_appsboot_service.mbn.zip 902.07 kB / 6510 downloads
7th February 2018 01:14 PM 0 Thanks
AvgPhoneUser Senior Member
i get the error: BATTERY_VOLTAGE_TOO_LOW_FAIL (0xA24B)


EDIT ITS WORKING D
7th February 2018 01:25 PM 0 Thanks
Jitender Baloda Member
Bro I can't enter to recovery.

please tell me step by step how to enter recovery after 'no command'
7th February 2018 01:38 PM 0 Thanks
AvgPhoneUser Senior Member
Quote:
Originally Posted by Jitender Baloda

Bro I can't enter to recovery.

please tell me step by step how to enter recovery after 'no command'

when it says no command press and hold power and press vol up
7th February 2018 02:35 PM 0 Thanks
addymcp1 Junior Member
I was looking for the ROM to downgrade to?

Does someone have a link for this?
Thanks
9th February 2018 09:30 AM 1 Thanks
cristi.blidariu Senior Member
I have unbrick my phone(nokia 5 ta-1053) using this method,but with out ost,so thank you very much
14th February 2018 06:36 AM 0 Thanks
hikari_calyx Senior Member
Thanks a lot!
Since I've already grabbed packages from August 2017 to January 2018, I'll ask Chinese users who want to downgrade Nokia 6 TA-1000 to Nougat to give it a try
14th February 2018 10:03 PM 0 Thanks
Red2503 Junior Member
..
15th February 2018 01:12 PM 0 Thanks
owaiss007 Junior Member
So confused, which one is the ROM for Nokia 5 Ta-1053? please help
16th February 2018 10:29 AM 1 Thanks
contrahelix Junior Member
I have try again and again. But i can't roll back to Android 7.
I get "no command" screen, press and hold power, press the voice up. But it turn on instead of go to the recovery.
Nokia 5 with Android O.
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