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Update a not well-known 8.1 (treble) android Chinese smartphone to 9.0

Hey there!
My name is Thomas and I'm new to this forum. I have a cheap Chinese phone: the UMIDIGI One Pro. It's a really good smartphone provided with stock Android 8.1.
It's been a few weeks since Android 9 came out and I think it's a very good version. I currently use Pear Launcher and Power Shade to have a close interface (I'm a fan of Pie one).
I like hacking and I had a little fun yesterday by rooting my phone with Magisk and installing the God's favorite language with Termux (RUBY <3). Just looking at examples of what I could do with Termux I saw that I could see if my phone supported Treble, and contrary to what I thought ... it is!
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I am a newbie so correct me if I say nonsense but I think it would allow me to update to android 9, right? I watched some tutorials but they use TWRP (and I have not found a version compatible with my phone because it is really little known and recent).
I am currently able to use:
- ADB & Fastboot
- Termux
- Magisk
- SP Flash Tools (I used it in order to install Magisk)
- The ROM folder downloaded from the website of my phone: [link blocked as I'm a new user]
But I'm not able to:
- Unlock bootloader (when I restart on fastboot and perform the command "fastboot oem unlock", it asks me to press volume up to confirm because it could void the warranty and then it says "unlock failed"
- Install TWRP (as I don't found any supported version)
Do you think I can update it to android 9? If yes, how?
Thank you very much for taking the time to read me. Sorry if my English is not very good (I'm french).
Thomas!

I found a compatible TWRP version here : [Link blocked because I don't have 10 posts]
So I installed it with SP Flash Tools. :good:

I also found a TWRP for the ONE PRO, but I have the ONE, you think it will work ?
And from what source did you get the boot.img to install Magisk ?

I have the One Pro it's the same phone except you have a bigger battery and I have wireless charging capabilities...... keep me posted because I might want to do the same

Anyone got the F.13 update on their OnePlus nord

Hi all, I'm running a OnePlus Nord with OOS 12.1 (F.12 update) and the F.13 update is meant to be out but I don't see the update, can anyone help me, I have the Indian model

mattwhite7102 said:
Hi all, I'm running a OnePlus Nord with OOS 12.1 (F.12 update) and the F.13 update is meant to be out but I don't see the update, can anyone help me, I have the Indian model
Click to expand...
Click to collapse
Just install Oxygen Updater app and all will be ok )

This is the problem I'm facing, the link is dead too
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Bro, I downloaded this file half an hour ago and everything was ok. You must try again or find a problem on your side

gorro8 said:
View attachment 5686145
Click to expand...
Click to collapse
Yours is the Indian model right?

Yes, ac2001

gorro8 said:
Yes, ac2001
Click to expand...
Click to collapse
Can you send me the zip file? This is what I see if I try to download manually,

OK. but you should keep in mind that this file is not installed in a standard way. you must do what is written in the screenshot to install this update

gorro8 said:
OK. but you should keep in mind that this file is not installed in a standard way. you must do what is written in the screenshot to install this update
View attachment 5686157
Click to expand...
Click to collapse
I'm aware of this because I had to do this when I updated my phone to oxygenOS 12, I just need the file, If you have it uploaded to Google drive, that would be wonderful

Will it suit you if I upload it to the mega.nz?

gorro8 said:
Will it suit you if I upload it to the mega.nz?
Click to expand...
Click to collapse
That works too

3.96 GB file on MEGA
mega.nz

How does the F.13 perform in comparison to OOS11 or F.12?
I was very unpleased with F12, very slow and laggy, battery eater... sticking with OOS11 until they fix it, which means, possibly forever ...
Edit:
I tested it. Seems faster and snappier than F.12, but the battery still drains pretty fast and sites with video/images are a lot choppier than in OOS11.
Did anyone got the F.14 update file before Oneplus removed it?

How to roll back from OxygenOS 12 to 11!

Unable to roll back from 12 to 11.
Tried various methods. The local upgrade method doesn't work at all. Gives the following message:
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My OP7Pro is GM1913.
And current build version is: GM1913_11_H.31
And I really want to avoid the MSM tool option as it's a bit complicated.
Any suggestions?
Thanks.

alisiddiqui said:
Unable to roll back from 12 to 11.
Tried various methods. The local upgrade method doesn't work at all. Gives the following message:
View attachment 5751039
My OP7Pro is GM1913.
And current build version is: GM1913_11_H.31
And I really want to avoid the MSM tool option as it's a bit complicated.
Any suggestions?
Thanks.
Click to expand...
Click to collapse
Hello,
All informations for rollback are here bellow :
OnePlus Community
Introducing our new OnePlus Community experience, with a completely revamped structure, built from the ground-up.
community.oneplus.com

khalisz said:
Hello,
All informations for rollback are here bellow :
OnePlus Community
Introducing our new OnePlus Community experience, with a completely revamped structure, built from the ground-up.
community.oneplus.com
Click to expand...
Click to collapse
Yeah this method isn't working.
That's what the whole post is about.

Try to use msm tool to roolback

alisiddiqui said:
Unable to roll back from 12 to 11.
Tried various methods. The local upgrade method doesn't work at all. Gives the following message:
View attachment 5751039
My OP7Pro is GM1913.
And current build version is: GM1913_11_H.31
And I really want to avoid the MSM tool option as it's a bit complicated.
Any suggestions?
Thanks.
Click to expand...
Click to collapse
Hello sir, may i ask if you still have the zip file for this global update? the last update is a disaster. thank you

Question Alternative to google wallets on unlocked mi 13?

Since I'm using global ROM on cn model, Google wallet refused to work on unlocked device. Is there anyway that it can be used or an alternative to it?
Thanks
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Root+Magisk+module safety or Xiaomi EU rom

Xiaomi EU rom is so great! you should try it!

Gankadin said:
Xiaomi EU rom is so great! you should try it!
Click to expand...
Click to collapse
You can use it even without rooting?
Only concern if I root is OTA update...

NOSS8 said:
Root+Magisk+module safety or Xiaomi EU rom
Click to expand...
Click to collapse
Would OTA work?

rockmaster said:
You can use it even without rooting?
Only concern if I root is OTA update...
Click to expand...
Click to collapse
Yes' you don't need to root, the OTA is bit different. you getting the pop-up that ther is update avaible and the phone download it but it won't install it like in "normal" rom, all you need to do is to copy the .zip file file to your computer, put your phone to fastboot mode and run one file that will install the update and restart the phone.
read the "how to" guide here on forum.

rockmaster said:
Would OTA work?
Click to expand...
Click to collapse
No need to root with Xiaomi Eu rom
Xiaomi EU rom=Hybrid = can be installed and and update with either Twrp(OTA) or Fastboot

Gankadin said:
Yes' you don't need to root, the OTA is bit different. you getting the pop-up that ther is update avaible and the phone download it but it won't install it like in "normal" rom, all you need to do is to copy the .zip file file to your computer, put your phone to fastboot mode and run one file that will install the update and restart the phone.
read the "how to" guide here on forum.
Click to expand...
Click to collapse
Thanks. I just flashed EU .21 ROM and wallet added successfully. Much love

Update LG Wine Smart from Android 4 to 5 or 6?

Apologies for posting here but there is no forum for the LG Wine Smart (D486). Mine currently has stock 4.4.2 KitKat. Aw remember that? LG update app no longer functions correctly as it was shut down in 2020.
Is there any way to update this to 5 or preferably 6? There is an app I need that isn't compatible with Android 4.

You have to find
1. A Custom ROM suitable to phone ( specs: 1 GB RAM, 4 GB max storage )
2. If found, a Custom Recovery suitable to phone to flash the Custom ROM found

Many thanks. Sorry for the questions but if you were me, where would you look first?
Alternatively I wanted to make it clear that this phone officially shipped with Android 5.1 later in its life. I just happen to have an earlier 4.4.2 version. Where might I find the official 5.1 ROM and flash it?
Edit: I have found some options that I will try at http://lg-roms.com/lg-firmware/lg-h410/h41010d/2879

I'm not having any luck @jwoegerbauer . It turns out 4.4.2 was the latest official ROM for this phone.
Would you be able to assist a little? If you were me, where would you look first (as in URLs) to get a custom Android 6 ROM and recovery?
I'd like to update to Android 6 or higher. All the apps I want to install require Android 6+.
I'd just need to make sure it can recognise input from the LG Wine Smart D486 keypad.
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Thanks in advance!
P.S. Cute baby!

Aww, that's cute

XanderXDA said:
Aww, that's cute
Click to expand...
Click to collapse
The LG flip or the baby?

CJSnet said:
The LG flip or the baby?
Click to expand...
Click to collapse
Can I say both?