G502 flashing problem
 

i am using A2 1.09 flasher with 07
phone can communicate and start flashing but when i release 2+5 keys process always stops

what is problem?

Its Hold C Mate not 2+5 as you said.

holding C won't work mate since
thats Power key ;)
Niether holding only 2 or 5 work as already tested
only 2+5 works but its hard to hold all the time during flash process :-(

Sorry! Hold on 5 only Mate.