Sok San Road Siem Reap Cambodia

Siem Reap Cambodia Sok San Road Looking for case for Phone And making videos to discharge battery to near Zero after having Battery replaced. This video took battery down to 13% Not bad, recorded 8 videos total 21 Gig Started with battery at 60% Just got the phone, Was about 6 months No phone. Samsung A21S paid $57, no SD card , perfect screen. I made a big mistake having the battery replaced Now only the Main cameras work but selfie cam does not. Cambodia doesn't have good doctors or good techs. When I got the phone back NONE of the cams worked. I did some software re sets and got the Four Main cams working. Making a guess it's a software problem. Considering to install a new OS and see what that does. Lineage OS is what seems to be most recommended. I have it downloaded have to figure out how to install.