Victron multiplus 2 gx display

Dear member, I have read several explanation about the gx, I can say still I fail to find the solution 'specially the issue of wifi bluetooth and how to make gx function again please help me how to revive the bricked gx? In detailed way.

Is the info in the old community of any help

Old community article

Or the info in the manual

Manual, recovering Cerbo

Thank you.