From the start, i must apologize for my weak english.
All i wanted, is to have a backup copy of my firmware.
Just didn`t reach even first step - discover hidden partition.
First no rkusb.tag or teclast.sys or FRK.TAG or wisky.sys worked for me.
Then i saw something saying about RK27DM.exe. and RockUSB.
Trough device manager installed rockusb files. But hidden partition didnt apear.
The i tried RK27DM.exe and pushed the restore button... No hidden partition, and unformated main prtition.
Now i even dont know what firmware to searh. Yet on RK27DM.exe it said [ rk27 sdk version 2.2 loader 4.14 ].
I dont know what player i have. I bought it here -
EBAY
Can anybody direct me where to start?