WS1081 Memory corruption problem

[ace2]

My fineoffset clone (Maxkon WS1081) has developed a memory issue, it's like there is 2 separate home screens, 1st one is getting data from the transmitter and If you push the memory button, there is another with a weird, sometimes garbled time/date(changes every time you remove the batteries) that doesn't update data at all.
Tried to clear memory, change batteries a million times, even leave batteries out for 2-3 hours, but it still remains, Cumulus is only reading the corrupted details, not a fault with Cumulus of course, I tried a different PC to make sure.
After sometimes, Cumulus complains the station is not responding and requires resetting(remove batteries).
Any ideas with the station before I replace it?!