geoorg
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- Sep 28, 2020
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Restore a TWRP backup of the system and datasomeone knows how to go back to an older rom if you don't have to format data ?
Restore a TWRP backup of the system and datasomeone knows how to go back to an older rom if you don't have to format data ?
Restore a TWRP backup of the system and data
You have to format data.I explain:
when installing a previous rom 20.11.5 the phone returns to the recovery can not move forward without formatting the data so I asked the question
You have to format data.
You are doing a downgrade
Then you shouldn't be asking something you already know...right?Man, you're affirming something that I know myself and my question is not even answered
Then you shouldn't be asking something you already know...right?
But if you have a way to downgrade without format data, you can share with us. We are eager to learn
Downgrading weekly ROM version without format data should be possible if: No Android version downgrade -AND- No "security patch date" (in "/system/build.prop") downgrade.someone knows how to go back to an older rom if you don't have to format data ?
Hello,I tried installing this update from 20.10.30 from updater app but the phone rebooted to recovery
Then tried to install it again from recovery, wipe dalvik and cache and deleting the package_cache folder but also rebooted to recovery
Then tried to install it from the usb_otg and wipe dalvik and cache but also rebooted to recovery
My phone is Mi 9T
Any help please?
Yea, true.I asked the question:
1. because maybe someone smarter could find some way.
2.- if you don't have a solution ignore me and let others with a solution speak
3. that's what the question was for them
Downgrading weekly ROM version without format data should be possible if: No Android version downgrade -AND- No "security patch date" (in "/system/build.prop") downgrade.
Yes I used method for decryption and since that I haven't encrypted the storageHello,
How did you install 20.10.30? Did you remove ROM encryption (using "DFE" or something related to that)?
What's your current TWRP version?
I extracted "build.prop" file from 20.11.11 (for "raphael") and I see => ro.build.version.security_patch=2019-11-01interesting contribution: So if I'm in the last beta you should modify the build.prop and I can downgrade to version 20.11.5 That's what you mean?
So you have to install "DFE" again (after each ROM update) to be able to boot.Yes I used method for decryption and since that I haven't encrypted the storage
My current TWRP is 3.4.0-0
Can you tell me the detailed steps?I extracted "build.prop" file from 20.11.11 (for "raphael") and I see => ro.build.version.security_patch=2019-11-01
What's the current date for 20.11.18? If it's the same then I don't know why you can't downgrade ROM version.
So you have to install "DFE" again (after each ROM update) to be able to boot.
I don't know, I always keep ROM encryption.Can you tell me the detailed steps?
Thanks for your helpI don't know, I always keep ROM encryption.
I extracted "build.prop" file from 20.11.11 (for "raphael") and I see => ro.build.version.security_patch=2019-11-01
What's the current date for 20.11.18? If it's the same then I don't know why you can't downgrade ROM version.
So you have to install "DFE" again (after each ROM update) to be able to boot.
I know, but I know that the security patch date info is not updated since ages. ^^no its rom 20.11.5 not 20.11.11
Restore everything from TWRP except BOOT. BOOT must be from the last installed ROM. You don't need to format anything.
[/CITAR]
then the steps would be: ?
1: Restore everything from TWRP except BOOT.
2.install rom 20.11.5
3.Restore everything from TWRP except BOOT. again
4. reboot
1.Restore everything from TWRP except BOOT
2.Reboot
3.Everything
1.Restore everything from TWRP except BOOT
2.Reboot
3.Everything
If you need a more old ROM, then flash it, then flash BOOT from the last ROM that was installed.
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