[FatMama]

Hello and greetings to all members,
Today, a friend of mine brought in his C4 DoIP, which unexpectedly stopped working. It appears that the unit has lost its configuration and is currently in a "frozen" state, as evident from the attached photos of the LED screen.
In the past, with older C4 models facing a similar issue, I used to resolve it by inserting six batteries and performing a software update. However, with this newer C4, there has been a change in the board design, and there is no longer a battery connection to the board (as depicted in the attached photos).Upon attempting a software update through the Administration, the system only returns an ERROR 622. 
Has anyone encountered a similar issue with the newer C4 models, and if so, do you have any insights or solutions to
share?  
Also, I’ve noticed a loose wire hanging from I think WiFi antenna. I don’t know where on the board is connection point. Your collective knowledge would be greatly appreciated.
Thank you in advance for your assistance.
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