Experimenting with a Mintek MDP-5860

Does this player use an MT1389 compatible chipset? It certainly looks like it.
Just like the other verified MT1389 players (sunstech X505 - Star Cluster 3201), menus and procedure to get to them are alike.
I tried this:
 
SETUP - GENERAL SETUP - 1379 - ENTER (play)
 
Version 03.01.06.02
SUB-VER 00.00.00.02
8032 03.01.06.02
Servo 80.76.00.03
RISC 02.01.06.02
DSP 02.00.01.57
Region Code 1
 
SETUP - PREFERENCE SETUP - 1379 - ENTER
 

 Region Code 1
 
But I cannot change region. Dammit!!!
 
These are pictures of the inside of the MDP5860, that show some D2881 chip that I suspect it is an MT1389 clone.