HowTo perform a dirty upgrade to “/e/OS-T” from a previous /e/ version ?
→ it is as simple as a dirty update…
DO NOT WIPE ANYTHING !
there are multiple ways :
download the file, go to " → settings → system updater" and use the called “locale update” feature if you have it in the “3 dot menu”.
OR
download the file, boot the phone to the recovery mode and use “apply update” then “from internal storage” if your “recovery mode” have the feature.
OR
download the file on a SDcard, boot the phone to the recovery mode and use “apply update” then “from External SDcard” if your “recovery mode” have the feature.
OR
download the file on a computer, boot the phone to the recovery mode and use “apply update” then “from ADB” :
download the latest /e/OS-T build for your device e-2.5-t-20241108446629-official-FP4.zip
not IMG-e-2.5-t-20241108446629-official-FP4.zip
(put it into the platform-tools folder)
.
the phone screen will be mostly blank with just the output at the bottom showing progress.
(Do not pay attention to the wipe related things on this photo that came from the full install from stock instructions !)
On the computer the sideloading shows progress as a percentage figure that will stop at 47%. The phone will still be installing though (even though it might feel like nothing is happening sometimes!) and you can expect to see the following screens (excepting the wipe related things)