Got this phone https://www.ebay.ca/itm/332297469860 12MP camera good price —- to know : power+home+volume up = recovery mode power+home+volume down = odin mode/download mode —- Charge Cellphone —- Install Odin (Need windows) http://www.stechguide.com/install-twrp-recovery-samsung-galaxy-s5/ download TWRP https://dl.twrp.me/klte —- Back to Linux Have to be in developper mode first or adb won't work. https://wiki.lineageos.org/devices/klte/install#installing-lineageos-from-recovery-1 —- After successfull install, Install Fdroid apk from original website (for open source apps) And Yalp store, for the play store apps

Got another one, this time spending too many hours without any luck.

I am trying a high success rate way :

Root via https://www.wondershare.com/android-root.html using windows machine. then TWRP via the app https://twrp.me/app/ (no computer needed).

once TWRP is installed you can pretty much do anything without hassle (install custom rom, format, restore, backup, etc).