Samsung GT-I9100G - usb boot repair
phone mustbe off
connect phone without battery and use
usb_drv_windows
this driver
than run this bat file
omap4430hs_espresso_1200MHZ
and wait 20 30 sec phone will aliwe again
than run this bat file
omap4430hs_espresso_1200MHZ
and wait 20 30 sec phone will aliwe again