Thanks to gamefreak054 & xnuthecaveman i was able to save alot of time in not returning a 64 gb micro sd card i thought was corrupted , i had no idea the dx100 would format it :)
But i still have a few un answered things happening .
1. Odd thing is when i shut down sometimes it reboots the device
2. The other night when i turned it on it booted into safe mode , never seen this on a android device , need i be concerned ?
3. i have an otg adapter in the micro sd slot , with a usb to micro sd adapter . i prefer to leave it inserted even when i shut down . But very early this am i charged my dx100 fully , and left it off for the day , now tonight , i guess 12-16 hrs later the dx100 wouldnt boot , i was socked , but was suspicious the otg etc had drained the battery . So i plugged it in to charge and seen the battery was indeed drained . My question is , does leaving the otg and card inserted use/drain the battery ?
4. Is it harmful/safe to play unit while plugged in and charging ?
Advice here will be appreciated