I tried what you said and after fiddling for a while the phone managed to get detected by the SP Flash Tool then it got flashed by the SP Flash Tool for some reason a yellow circle came up and the USB seemed like it got disconnected automatically
i just left the machine and the phone+SP Flash tool as they are hoping to get that green circle.. bu nothing happen !!! phone is black screen just like dead... after fiddling again multiple times with key cobinations .. i managed to get it boot with the below procedure
pressed the small reset button, press both volume up and down + power button altogether then released the small red button for after maybe around 10 seconds and while the others are pressed !! then the phone booted !!
and ontop of that it booted with the lenovo logo and the slogan i believe "for thos who do" stayed for a while kinda flashing itself i think.. but no progress bar.. I almost thought i was on some boot loop maybe or soft brick but luckily it booted into the russian Life ROM I flashed after that phone went to homes screen and just died again !!!!!!!!!!!
im thinking maybe it may be a hardware issue?? or ??