[F] Firmware • [How To] Get root access on F series

I have rooted ue40f5300 with donate mode with 2104 firm., But now hangs up slowed and some faults happening

Youtube didnt open or not
Smarthub totally crashed not opened
Shutdown with remote sometimes not working, only switch off from connector helps, the same with power on

Watchdog and OTN disabled, maybe this problem hardware or soft?

Or need updating the firm? Im afraid fir these..

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