I recently encountered a serious issue with my Galaxy S21 Ultra after i updated to One UI 6.1 on June 22, 2024. Since the update, the automatically restarting randomly upto 10 times a day. I can't interact with my device at all. Sometime it reboots in the middle of important tasks, phone calls inclusive.
To troubleshoot, I have tried wiping the cache partition and even performed a factory reset 4 times, downgrading back to One UI 6. Despite these efforts, the phones still restarts randomly most times with reboots and poor network connection. To make matters worse the moment I get invalid network notification phone is unresponsive and restarts automatically.
The phone is only 5 days old and it's very annoying to have to encounter such when the device is new.
I'm at a loss and would greatly appreciate any advice or solutions from the community. Has anyone else experienced this issue? Are there any additional steps I can take to resolve this?
If possible is there a way of downgrading to one UI Version i had when i first bought the phone?
