The package also includes the MSMDownload tool, so you dont have to download it separately.
The third step is to install the appropriate USB drivers on your PC for the tool to detect your phone.Īnd the fourth and the final step is to flash the stock OxygenOS firmware using the tool. The second step is to launch the MSMDownload Tool and connect your phone to the PC while it is in EDL mode. His contribution is the reason why this unbrick method is possible. The tool will automatically unlock the phones bootloader before flashing the firmware and relock it later after the unbricking process finishes. So, even if your phones secondary bootloader (the one that is normally responsible for booting) is inaccessible, you can boot your OnePlus 66T into EDL mode, connect it to the PC, and use the MSMDownload tool to unbrick the phone.
This special boot-mode is a feature available only for devices equipped with Qualcomm SoCs and is controlled by the primary bootloader. However, the tool was leaked for every OnePlus device in the past and is now available for the OnePlus 6 and OnePlus 6T as well. It is a low-level flashing utility that is used by OnePlus (and its parent company Oppo) to carry out flashing on their devices internally. So how do you differentiate if your phone has been soft-bricked or hard-bricked Below are some of the signs that could help you figure this out.Īnd if you cannot boot into FastbootRecovery mode either, it means that you cannot install the stock firmware using Fastboot or Recovery Mode to unbrick it easily. However, the same is not the case when dealing with hard-bricks. Or, it could be something wrong with the file (Custom ROM, recovery, etc). This could either be caused by a user-error, for example, you might have missed an important step. While flashing your phone using these tools is mostly safe, there still are chances of bricking your OnePlus 66T.