Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

 

the "clean" command is enough ( and it takes few seconds) . I think I know what happens :  every SD card and every cf-express  card , come formatted by the factory. Reformatting them is not enough : the partition table is kept. Most probably the partition table (the first sectors of a disk or Usb card) are prepared by the factory  in a way not always accepted by windows. The diskpart "clean" command simply remove all partition information, so that when you format the card again, a new partition table is created, compatible with windows.

I found out how to defeat that, now to see if I get better results.

I thought it might be something like that. I think something else MAY be going on as well. Am going to experiment.

I upgraded to 4.3.0 and bluetooth broke, downloaded 4.3.1 and upgraded via SD card and bluetooth continued to be broken.