Link Downlaod Firmware : https://yun.daxiaamu.com/OnePlus_Roms/

Link GAPro OnePlus Login Tool & MSM Tool For Auth : 

https://mega.nz/file/dq4TVAAA#_cbn7oqQSeCfxDgsSvmbRt96SREHpfJfV90s4ePwQm4

Instraction :

Delete MSM Tool From Firmware Folder & Extract Our Loader & MSM Tool On the Firware Folder

Run Loader & Paste The OTP Code

When MSM Tool Shows Login Screen Paste OTP On Username & Password Field (leave Auth Code Blank)

Select Region : Non-Europe 

Press Ok

Load Firmware in MSM Tool & Flash

OTP WILL EXPIRE IN 24HOUR