I managed to do, a partial, dirty upgrade, so no need to reinstall all apps and date.
But, to keep it save, make a copy of all you data and pictures, contact messages, to you Pc or to the cloud, it’s always good to make a good backup.
You need a good/latest ADB and fastboot install.
Need good USB drivers, if you download and install, miflash_unlock_en_7.6.727.43, you wil have them.
On computer
Download the files.
e-2.6.3-u-20241219455571-community-renoir.zip
recovery-IMG-e-2.6.3-u-20241219455571-community-renoir.zip
Extract the files from, recovery-IMG-e-2.6.3-u-20241219455571-community-renoir.zip
For ease of use copy alle these extracted files,
dtbo-e-2.6.3-u-20241219455571-community-renoir.img,
vendor_boot-e-2.6.3-u-20241219455571-community-renoir.img
recovery-e-2.6.3-u-20241219455571-community-renoir.img
and, e-2.6.3-u-20241219455571-community-renoir.zip
to same directory where adb.exe is installed.
In my case that is C:\Program Files (x86)\Android\android-sdk\platform-tools
On device, enable USB debugging.
Connect USB
On computer
Windows Start
Type CMD → rightklick start as Administrator
In CMD
cd C:\Program Files (x86)\Android\android-sdk\platform-tools
adb devices
On device there will be a screen, asking for permission, accept.
adb reboot recovery
Device will reboot into recovery
With recovery 2.5 you don’t have to reboot to fastboot or download mode again
So no more hassel with buttons
On recovery screen
Advanced
Enter fastboot.
On pc
fastboot flash dtbo dtbo-e-2.6.3-u-20241219455571-community-renoir.img
fastboot flash vendor_boot vendor_boot-e-2.6.3-u-20241219455571-community-renoir.img
fastboot flash boot e-2.6.3-u-20241219455571-community-renoir.zip
Don’t reboot yet
On device
Choose
Enter recovery
Advanced
Reboot to recovery
After reboot you will see, recovery will be 2.6.3
Apply update
Apply from ADB
On pc
adb -d sideload e-2.6.3-u-20241219455571-community-renoir.zip
Then just wait, the screen is almost white , when ready you wil see a message in screen.
On Recovery
Reboot to system.
And all should be working now.
But, to be save, make a copy of all your files, before you start.
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