I found a Galaxy A5 (2016) with /e/OS-Q v1.5 and TWRP Recovery 3.6.2_9 and was still able to do an OTA update to /e/OS e-1.17-q-20231110351091-dev-a5xelte, although the download is no longer made available here
Next, I installed TWRP 3.7.0_9-0, but the system did not boot into TWRP Recovery, but stopped at the Samsung logo. I was also unable to start /e/OS-Q v.1.5. Strange, isn’t it?
Well, I thought to myself and flashed the e-Recovery e-1.19-r-20240110, which is available in @ronnz98’s e-1.19-r-20240110-UNOFFICIAL-a5xelte.zip. This still worked fine, but the installation via adb sideload failed with this message:
Error: 21
Install completed with status 2.
Installation aborted.
So, now 3rd attempt, and - this one was completely successful.
First I installed TWRP 3.6.2_9 again and booted into it;
wipe cache + Dalvik + System format Data adb push e-1.19-r-20240110-UNOFFICIAL-a5xelte.zip /sdcard INSTALL with TWRP Wipe Cache/Dalvik > Swipe to wipe Reboot system
Hip, hip, hooray! Everything is better than it was yesterday.
As you device is abandonned by Samsung, you don’t need (you can’t) upgrade the firmware.
simply install “e-1.19-r” over “e-1.17-q”
As you already have a custom recovery installed on your device (recovery-e or TWRP), you can go direct to step (8) or (9) but try without wiping or formating anything
I use this phone as a Daily driver on my Linux Mint machine.
I can watch TIKTOK and other Android Apps on my PC, it works perfect.
Pls tell me if you want to do the same, I can help you =).