Permanent reboot on Fairphone 5

Hello forum!

Since last Wednesday, I have had the problem that my Fairphone 5 (iodéOS 5.5) constantly (about every two minutes) and for no apparent reason reboots.

I have not changed anything in the installed software or the operating system and the Fairphone 5 is neither connected to a WLAN nor has a SIM or SD card been inserted.

It was just permanently connected to the charger. And to rule out the possibility that a defective battery could be the cause of this behaviour, I have already inserted my new replacement battery. But the Fairphone 5 still restarts about every 2 minutes.

Has anyone ever had a similar problem? And if so, how did they solve it?

Kind regards

‘Klaus’