I purchased my S21 5G at the end of March from Verizon. Ever since April, multiple times each day, it locks up while I'm using it and automatically reboots, even during phone calls. It will also restart itself while sitting on the table next to me. I've sent Samsung an error report each time this happens and they give me an automated response each time that it's the 3rd part apps that are causing this, I should run my phone in "safe mode," or send it to them to be checked. Had I known there were going to be this many issues with this phone I never would have upgraded. After reading reviews on their member board, it's a known issue with them, yet they haven't fixed it yet.
I am very open to suggestions, if anyone can help.
One of our main goals is to provide you with reliable service and devices. You have one of the latest and greatest devices we offer. Based on the suggestions by Samsung, we suggest you to run a Device Diagnosis by following the steps in the link below, it will give you recommendations to fix the issues and find apps that might be causing the issues: