tested fiirmware na ginamit ko credit to sir sairex26: https://www.4shared.com/archive/JwttW0g1ba/LENOVO_A850_by_sairex26.html
atfter flash heto na siya invalid imei
procedure :
debug ang phone
no need to root kasi rooted yung firmware
install cdc/ android driver
open sigmakey software
goto adb tab select port
paste the imei na nsa likod ng phone at dahil isa lang ang nakita kung imei sa likod
kaya same imei yung sim 1 at sim 2
after that click imei repair at wait lang mag reboot ang phone
imei rebuild done
imei check :dial *#06# and the imei appear tapos pera na
lagyan ng sim para maceck kung may signal parehas
atfter flash heto na siya invalid imei
procedure :
debug ang phone
no need to root kasi rooted yung firmware
install cdc/ android driver
open sigmakey software
goto adb tab select port
paste the imei na nsa likod ng phone at dahil isa lang ang nakita kung imei sa likod
kaya same imei yung sim 1 at sim 2
after that click imei repair at wait lang mag reboot ang phone
imei rebuild done
imei check :dial *#06# and the imei appear tapos pera na
lagyan ng sim para maceck kung may signal parehas