Oppo F5 F7 F9 Imei null Solutions

Brand: Oppo
Type: F5, F7 & F9
Problem: imei null

Tutorial:
write imei oppo f5,f7 n f9
masuk pengembang,
open oem
aktifkan usb debug
*#800# atau *#*#364663#*#*
✓masuk ATCI
✓klik enable ATCI once sampe ada logo sukses
✓geser kekanan masuk others
✓klik USB ACM
✓open GS1 port sampe ada logo sukses
✓close port
lalu colok pc sampai driver usb mtk port com terbaca
buka ufi android tool versi 1155
lalu ceklis kolom ATCI mode
ketik imei
masukan modem n apdb
write done...