I initially had the problem where it says there is moisture in the charging port
and will not turn on. I took it to a repair shop and he replaced the charging
port board. Then it worked alright for a while but now it has stopped working
when I want to transfer files between the computer and tablet via USB cable.
Windows says the device attached is malfunctioning. The tablet still charges
properly though (and normal charge not slow). So could this be a problem with
the connection between the charging port board and the motherboard or the
USB connector on the tablet? In either case maybe I could just take it apart
and clean it up myself? I have a fairly good knowledge of electronics but not
much experience in maintenance. I would be most grateful for any advice
anyone can give me.