downgrading firmware - Oppo Find 7 and 7a

Hello guys
I have flashed lollipop in my oppo find 7 but I want to go back to the official stock firmware v1.2.3i so can any one tell how can I do it I have the official stock rom but while flashing it says installation failed please tell.

Have you enabled unified storage on lollipop, because it has to be disabled before to downgrade 1.2.3i.
Beware that will wipe your data.

Related

Does installing a TWRP Backup also affect phone Firmware?

Hello guys,
following situation:
Long time I had a 4.4.something Rom installed. Before I flashed a custom Lollipop rom, I followed the advice to just go back to stock and let it update to Lollipop so that the firmware will be updated accordingly and I won't run into problems when flashing a Lollipop Custom Rom. Everything worked fine. Now I had to send my phone to HTC for display repair and just to make sure they won't nag about the custom Rom I reflashed some older stock rom via TWRP backup I found here, I think it was a 4.0 or so. The question is, does this also affect my phones firmware or is it still on the current newest level? So when I get it back, would I need to update to stock Lollipop again before flashing a custom rom or can I go for it straight away?
fBx said:
Hello guys,
following situation:
Long time I had a 4.4.something Rom installed. Before I flashed a custom Lollipop rom, I followed the advice to just go back to stock and let it update to Lollipop so that the firmware will be updated accordingly and I won't run into problems when flashing a Lollipop Custom Rom. Everything worked fine. Now I had to send my phone to HTC for display repair and just to make sure they won't nag about the custom Rom I reflashed some older stock rom via TWRP backup I found here, I think it was a 4.0 or so. The question is, does this also affect my phones firmware or is it still on the current newest level? So when I get it back, would I need to update to stock Lollipop again before flashing a custom rom or can I go for it straight away?
Click to expand...
Click to collapse
It won't affect your firmware.
Okay thanks, so Firmware should still be up to date and I can flash a Lollipop Custom Rom. I don't know what they do at HTC repair, if they only reset it or if they also update it, well I'll see.

AT&T GPad F 8.0 (V495) Marshmallow 6 OTA Upgrade Fail

Hi my friends, I am looking for a STOCK RECOVERY for my LG G Pad F 8.0 AT&T (V495). I was trying to do an OTA upgrade to 6 but after the Download and restart the installation is giving me an error because i am ROOTED. I need to flash stock recovery to be able to install new OTA upgrade to Marshmallow 6. Is someone have a 5.0.2 STOCK Recovery or maybe another idea on how can I do and upgrade to Marshmallow 6 I will appreciate any help. Thanks
Is there a KDZ or TOT available for your variant?
I am in the same boat. I can not find the stock rom anywhere. I would like to upgrade to to 6.0. I am rooted with king root. If the stock rom is not found is there a way to unroot and delete all root files so the update does not detect the root so we can update?
slideattack said:
I am in the same boat. I can not find the stock rom anywhere. I would like to upgrade to to 6.0. I am rooted with king root. If the stock rom is not found is there a way to unroot and delete all root files so the update does not detect the root so we can update?
Click to expand...
Click to collapse
In order to take OTAs (starting with Lollipop) you have to never have been rooted (since the most recent time you've flashed a KDZ or TOT).
Unrooting isn't enough.

[SMP600] on 4.4.2 custom - want to upgrade, I'm on ND1 do I need to upgrade firmware?

The title almost says it all.
I am on a custom 4.4.2 ROM (using ND1 firmware) and want to look into upgrading to 5.1.1 or higher. Obviously rooted with TWRP recovery.
I know I'll need to upgrade my TWRP from 2.6.0.3 or whatever it is on right now to 3 or better - but I need to know if I will have to flash official stock 5.1 to upgrade to the newest firmware, if there is a newest firmware, to get the install clean with minimal errors or can I just flash a custom TW ROM and hope that upgrades the firmware, if there is new firmware, or is there a thread I can be directed to so I can read up on what I need to do to upgrade?
Or since I am already rooted with TWRP, can I just upgrade or flash my twrp to a known good version and flash a rom then be on my way?
Thanks in advance!
Dear Friend , It's all clear that if if you want to install any TW Lollipop ROMs, you need to first install a Lollipop firmware ( Using Odin ) to install a Lollipop bootloader ( do not even think of ticking the update bootloader in Odin because then you wouldn't be able to revert into KK firmware and then you can't run any KK ROM on Lollipop bootloader ) and then install a TWRP ( I recommend ShevT's one which is less glitchie and faster than the official ones because of the F2FS support !! ) and then you're free to go the way you like
... Hope it helps ... With Best Wishes - Hitman1376

Downgrade from Oreo to Nougat - no root - stock recovery

Hello ,
i have upgraded using OTA to Oreo but some of the critical apps related to my work are not compatible with Oreo yet so i want to downgrade to Nougat,
I have non rooted phone with stock recovery,
i have also searched for this but couldn't find a answer for stock recovery.
Kindly please help.
Go to the below link and download the special build they have provided there and flash it via recovery. You'll be booted back to nougat though you'll loose partial data. You can find more info there.
Link : https://forums.oneplus.net/threads/...e-oneplus-3-and-19-for-the-oneplus-3t.700432/

Going back to Oreo - Downgrade

Hi there, I have my reasons, but I want to return back to a custom Oreo rom, I'm currently on a custom ROM with the latest firmware 9.0.7, so is it a case of downloading a earlier stock firmware, flashing in recovery? Also as I want to stay decrypted too, do I still use the v4 no Verity file on Oreo?
Thanks everyone
I am also thinking of going back to Oreo and have my reasons also. I think the best way would be to use the Aroma installer by brad which has oreo stock too.
https://androidfilehost.com/?fid=11410963190603897704
would also be very interested if downgrade is possible. bought a used 5t with pie but need xposed and a few modules. anybody out there who tried downgrade?
Hi..I successfully downgraded my 5t to Oreo ob19 using flashable zip from below link
https://forum.xda-developers.com/oneplus-5t/how-to/oneplus-5t-mirrors-official-oxygen-os-t3708099
Copy the rom zip to internal storage. Reboot into stock/twrp
Wipe data/cache reset system settings
Flash zip and wipe cache then restart
We are back into the good old Oreo...

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