we need the ff:
DM
BBSAK
firmware

upon arrival "app error 523"

open bbsak to wipe.click wipe device....wipe completed

after wiping, you will see reload software 507

in bbsak click load OS to open the loader,loader appeared

next



i selected replace and press next

select language and apps as you wish

click finish

wait and see


installing all COD files (flashing)

during flashing, you can see this on BB display

flashing completed

Done