Pulling my Hair!!! (whats left of it)

HI guys , i came across a very frustrating issue while testing my one week old M6 pro 2K 8+128Gb.
The unit defaults its time and date to
01-02-2023 03:11 every time i REBOOT regardless of time settings set, being manual set or "network provided time"
The only way the unit gives me the right time is when connected to the internet and set to "network provided time"
i also notice that a couple of times when the clock is set manually the unit rebooted with the right time but gets changed straight away to the above time and date.
Does anyone has this issue?
unit has been factory reset several times.
wiring is correct, and confirmed by my old px5 unit .