From Lineage OS 20 to Android 12 (or 13) - OnePlus 7 Pro Questions & Answers

Hello,
I've installed Lineage OS 20 in january this year. I would like to sell my phone but before that I would like to go back to android 12 (or 13 if possible).
Can someone link me a tuto ? I don't find any and if I look outside of XDA, tutorials seem to have some inaccuracies and as I don't understand all the steps, if something is missing I may be lost and being block in bootloop ...
Best regards,
_Bilu

I find this guide : https://community.oneplus.com/thread/1541327
Is there someone who have used MSM tool and can relate of his reliability and ease of use ?

Related

Rooted Honor Note 10 : install GSI ROM ?

Hi guys,
Well, title says it almos all...
After reading several posts here, I decided to go for a code to unlock my bootloader and I was successful at that.
I also install TWRP as a custom recovery and I was successful at that too.
I tried then to root the phone, and I could do it.
So I was wondering : as Huawei does not release any source code, would it be possible to install a GSI ROM on that device to get rid of EMUI ?
Anyone tried that ?
Would love to hear an answer, especially if it is "Yes, I did it and it works like a charm"
Regards.
First you need someone with the ability to create said rom.
Hi,
I am taking about a GSI ROM.
GSI stand for "Generic System Image".
It means that it is a ROM that is, in theory, installable on EVERY device that supports Treble project.
And, according to Google policies, for a device released with Oreo as a main system, it is MANDATORY to support Treble...
But of course, manufacturers always do it their way... and can't care less about Google's guidelines.
So the question is : is Honor Note 10 Treble compatible ?
Regards.
Hi,
Well, I am investigating this a little further...
I just checked if the device is (in theory) Treble enabled...
And guess what ?
"adb shell getprop ro.treble.enabled
true"
So, this is encouraging...
I will try to install a GSI ROM on this device. I assume that I will still be able to reflash the other original ROM in case this goes wrong.
At least I hope to be able to do so !!!
Regards.
I managed to install the AOSP project treble but with something that did not work, for example the fingerprint or the 4G network was poor
SmartPhonesFan said:
knew it it will be crap .. this won't work dat won't work ..
Click to expand...
Click to collapse
I do not recommend installing the GSI for the time being
I had also installed a Resurrection Remix without success, blocking the unlock code of the phone and did not make me go on

Vivo Y70 Bootloader/TWRP/Custom ROM ?

Hello everyone !
I just got a Vivo Y70 and I wanted to try to install other OS on it.
But I don't seem to find anything for this model.
Isn't there really not much thing for this device ?
Thanks in advance.
unfortunaltey this is the phone no one wants to develop for
not even a single custom rom found although i found it a good mid ranger budget phone with quite good camera and processing ability .
If only there was a bootstrap to begin with, I have this phone and I'm sick of all that boilerplate iManager and app killer...
As a dev guy, I will be happy to at least provide some tips and improve my life and your if you find the firsts steps of how to root a phone (some endpoint to enter the bootloader code, and root safely a phone)
I am also waiting if someone can figure out the steps to go back to android 10 for Y70 phone it was working pretty fast but as i updated to android 11 its almost dead slow now .. and guess what there is no option to revert back to stock android 10 firmware as well.
Well I have just received an OTA official security update (March 2023), so the device is still supported by the manufaturer: I do not see yet an urgent need for a custom ROM. I'll be waiting at the door when the phone will start aging more.

Manually install android 12 on note 20 ultra live demo unit running android 10

Hi, so I have a Note 20 ultra Live demo unit N985F/DS. I make calls, everything is working. However it's on android 10 and not getting any prompts for updates. I want to manually install android 12 and would like to know how to go about it and if it being an LDU has any complications to it. Thanks in advance for any contributions
Technically seen moving from Android 10 to Android 12 is an UPGRADE, not an update.
Updates ( read: patches to existing Android OS ) get rolled out by OEM if they deem it necessary.
If you find both a Custom Recovery and a Custom ROM - based on Android 12 - what is sutitable to mentioned device you can start to upgrade at your own.

So, a little update

Tried my luck repartitioning the tablet, increasing the system partition and reducing the userdata partition. afterwards i flashed a/b gsi's using makemesar zip in order to get them working. that did not work, had to go back to stock.
Lately, i have discovered that our tablet shares some specs with its cousin, the Mediapad T5. and T4 has an active community, more developers, more custom recovery and even a way to rebrand their tablet to their chinese counterparts. how is this rebranding important ?
well, the chinese counterparts have access to updates. huawei didnt drop support for them as it did for us. so, they got update to android 9 and then Harmony OS (which is Android 10).
So i will see if i can rebrand my tablet into a chinese counterpart and get update to android 10. afterwards i will make a guide here.
If it works it would be fantastic. Is it possible flashing the Chinese iso image
directly to the European device?
yes, thats the intended output. the chinese device has even updates to harmony os 2.0 (android 10). so far these been a few success stories and a lot of hard-breaks. so dont jump into other threads and flash stuff.
Fytdyh said:
yes, thats the intended output. the chinese device has even updates to harmony os 2.0 (android 10). so far these been a few success stories and a lot of hard-breaks. so dont jump into other threads and flash stuff.
Click to expand...
Click to collapse
Yes, I've read the t5 thread. I hope you can find a way to rebrand this model too. If you need some help you can send me a p.m.
Thanks God! I hope you have success in your way, good luck! It would be fabulous update to android 10 this tablet.. oh my god.. still at 8. So sad
Is there a way to rebrand this model to chinese?

Question Downgrade from Android 13 to Android 12 ?

Do not disturb, receive calls from anyone was removed for android 13:
Feedback from Oneplus
This particular feature was discontinued with the OS 13 update as very few people were making use of it. Your response is invaluable to us, and we wanted to let you know how important your thoughts are to the team at OnePlus. We will make sure to forward your feedback to the development team.
How can I downgrade my phone to Android 12 (I don't want to get disturbed by apps when I'm on call) ? (this is distroying my night rest).
Can I do this without losing all my data ? Phone is rooted stock.
Easiest way is to simply backup your data and then use MSM Tool to roll back to Android 11 and then update to the version you want.
There is a number of guides if you search Google. Here is one of the many listed.
Downgrade OnePlus 9/Pro/9R from Android 13 to Android 12
In this comprehensive tutorial, we will show you the steps to downgrade your OnePlus 9/Pro/9R from Android 13 to Android 12.
droidwin.com

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