Ever since I updated to android 12 my S21 has been freezing up and then restarting AKA lock up and restart. It's also been being really slow is really slow and my battery has been dying way quicker and my phone has been heating up.. It locks up and restarts at least 4 to 5 times an hour and it's to the point where I wish I went back to android 11 But there is no way to downgrade.
Same issue....exactly. Tried the recovery and wipe. Uninstalled apps (games I've had for years). Still an issue. I hate this new phone. Wish I had never upgraded and kept my note 8.