Is it possible to update the Android version 7.1.2 on my galaxi s7 edge to, for example, android 8? This is because of an application that should run on at least version Android 8 in a few months?
android 8 is already the base of the official Oreo dev build of /e/OS
you also can install unofficial Pie (android 9 based) or Q (android 10 based) Discussion
for the s7edge Downloads
.
as you already have TWRP installed, only point (8) is necessary for you.
Just to be clear. I now have E/OS 7 and would like to go to E/OS 8, this process is clear.
However, I absolutely do not want to lose my data. How can I secure a backup of my data and restore it after upgrading to E/OS 8?
Which tool should I use? Unfortunately, I have no knowledge of the Android system.