Problem with flashed GRBL (EKitsZone UNO R3 (ATMEGA 328 / ATMEGA 16U))

Tried to load grbl it's flashing original chip by Xloader, but all I can see is

"Grbl 0.8a '$' to dump current settings"

I have no responce to any '$' commands :(... I've tried many grbl firmwires. Results are the same. is it possible that I have problem because of ATMEGA 16U or NXP OPAMP?

my board is "The EKitsZone UNO is 100% compatible with Arduino Uno R3 with some enhancement. It replaced the LM358D with a fast response NXP OPAMP. The new OPAMP is 10 times faster than LM358D in term of dv/dt. The UNO is using the Atmega16U2 as a USB-to-serial converter."

my upload code is: -F -v -pm328p -cstk500v1 -P\.\COM4 -b115200 -D -Uflash:w:"C:\Users\Yurij\Downloads\grbl-latest.hex":i

is it possible to change anything in this code to fix the problem. I know 0 in this topic. thanx