Hi, i have rockchip player rk27sdk version 2.2 type 080722 2.5 years old, last year when i connect him to PC he appears on a couple of seconds (1 - 4 sec) in a safety remove device :
RockChip USBDISK UserUSB Device
RockChip USBDISK SD USB Device
and turned off and begin charging the battery.
He connect normally to PC only if i put windows in save mode

, others functions works fine

.
I dont do anything with firmware, only change manually icons and backgrounds but it was in the first month after purchase.
I thought that something with cable or player slot for cable, but why then he connect hormally when windows in save mod ????