On this page, you will find the official link to Download OnePlus 3T Stock Firmware ROM (flash file) on your Computer. Firmware comes in a zip package containing Flash File, Flash Tool, USB Driver, and How-to Flash Manual.
OnePlus 3T Stock Firmware (Flash File)
The Flash File will help you Upgrade, Downgrade, or re-install the Stock Firmware (OS) on your Mobile Device. In addition, the Flash File (ROM) also enables you to repair the Mobile device if facing any Software Issue, Bootloop Issue, IMEI Issue, or Dead Issue.
|File Name: OnePlus_3T_161027.zip
File Size: 1.42 GB Download Now 1.42 GB
|File Name: OnePlus_3T_28_A.85_190731.zip
File Size: 1.64 GB Download Now 1.64 GB
|File Name: OnePlus_3T_28_A.86_191104.zip
File Size: 1.56 GB
How to Flash or Install Firmware (ROM)
1 . Download and extract the OnePlus 3T stock firmware package on the computer.
2 . After extracting the package, you will be able to get the Firmware File, Flash Tool, Driver, and How-to Flash Guide.
3 . Install the provided USB Driver on the Computer (if the USB Driver is already installed, then SKIP this step).
4 . Follow the How-to Flash Manual to Flash or install the Firmware on your OnePlus 3T device.
[*] Take a Backup: If you are going to flash or install the above Firmware on the OnePlus 3T device, then take a backup of everything because your data will be deleted or removed post flashing or installing the Firmware.