Homeflash-file Oppo A57 Baseband Unknown and imei null Fix With Umt 100%Tested byAbdul Rehman -March 08, 2023 0 Oppo A57 Baseband Unknown and imei null UmtOppo A57 Baseband Unknown Fix With Umt 100%TestedFile Information Device Name: A57 Model Number: CPH1701 Brand: OPPO Android: Any Country: USA/All File Cost: FREE Chip Type: Qualcomm MSM8940 Snapdragon 435 (28 nm) Password: www.abbhai.comCPH1701EX_11_A.36_umt firmware Tags flash-file oppo-flash-file Facebook Twitter