https://us.community.samsung.com/t5/A-Series-Other-Mobile/A53-restart-loop-after-OneUI-6-1-update/m-p/3008148/highlight/true
Solved: Re: A53 restart loop after OneUI 6.1 update - Page 2 - Samsung Community - 2890073
Sep 30, 2024 - Very delayed update but figured I'd post the solution we had tl;dr - motherboard issue, replaced under warranty Contacted Samsung - 2890073 - 2