The condition of not rebooting inside this asian firmware is the following:
(region34.hwid == 0x4EB AND region43.hwid == 0x4EB ) OR region34.hwid == 0xFFFF
So it's enough to copy both region34 and region43 from asian device, but you'd better don't do it, because region43 is x-loader, so you can brick your device in the most reliable way :)
The better solution is to set region34.hwid = 0xFFFF. region34.hwid is placed in two bytes at offset 0x10.
Also turboccc's 3750 works fine because is has region34.hwid == 0xFFFF.