Windows key (on keyboard) + X, windows powershell (or normal prompt) administrator and write and enter: bcdedit /set testsigning on ( you will repeat the same process with "off" to stop the test mode after you will finish to do all the things). Now you have to go in Windows test mode to not let him install default drivers, so: MsmDownloadTool V4.0 International (Oxygen OS 5.1.5)įirst of all, you need to access to fastboot mode, if you can't, contact Oneplus support, then have a windows computer and download these file and drivers qualcomm ( ) and extract in one folder.Īfter you have all the file ready, plug in the phone to the computer, go in device manager and under port (COM) disinstall qualcomm one (oneplus 6) and then unplug.
MsmDownloadTool V4.0 International (Oxygen OS 5.1.5) - OnePlus 6 Guides, News, & Discussion You can use it to revive your op6, if you can boot in fastboot and have done the stuff with drivers (qualcomm)
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