Sony A7iii Overheating and freezing up issues

[Chrille]

Hyy everyone,

i own a Sony A7iii for approximately 4 month. I recently shot a live concert and used different modes: 4K, HD 100 fps etc. After approximately 1 hour on and off shooting the camera told me that it will shut down due to heat.

Since then the camera is acting strange. For example it is froze up in playback mode and would not even switch off when i flip the switch?

I have not installed the latest firmware yet and i am wondering wether i should do that or return it to the reseller right away? I have searched this forum but it seems that no one else has encountered this problem?

Edit: P.S. if this belongs into the Sony A7iii thread it would be great if one could let me know.