G8 Rio-l01 no service after flash

[xpertsgsm]

hi team i have around 10 pcs with the same problem after flashing its showing no service.
i repaired imei every thing on hcu
flashed factory frimware after imei is null
again repaired on hcu
but still the same
i cannot find nv backup for this model

if i have 1 working phone can u help me take nv backup for this model

thanks and best regards

[Valdemaras]

http://forum.gsmhosting.com/vbb/f1004/g8-rio-l01-no-service-after-flash-2251528/