Battery status dates incorrect

In the battery status section it reads :

Production date : 1 January 1970

Date of first use: 1 january 1970

when i got the FP it said the date i started using the phone, 2 updates later its messed up

cycle count still on 6

Fp6, 3.73 A15

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Update:

Cycles is now on 13, so that works i guess.

Something is swapped : under the storage diagnose it says a full bar. Looks like this is the battery bar.