sir plz let me know what is the main use of micro usb charger slot in my asus memo pad me172v ? Actually few time when i connected my pen drive thru o2g cable my asus memo pad me172v geting power off with shown a message "battery power low" and tablet powerd off automatically... pls help sir is it device problem or it not way that i conect extarnal pen drive thru this slot! help help sir plz let me know what is the main use of micro usb charger slot? Actually few time when i connected my pen drive thru o2g cable my asus memo pad me172v geting power off with sbown a message "battery power low"