NB! It did not install the Sony driver as specified by Jolla.

Zadig installed the driver and then it worked. I chose WinUSB.sys in the automatic driver list. Zadig recognizes that the connection to the phone is broken. I installed Zadig and started it up with the phone connected in fastboot mode (fastboot mode is reached on an Xperia XA2 Ultra if you turn it on while gently pressing volume down as it is connected with USB to the computer - this information is in the installation 'manual' that you read when installing Sailfish X). I cannot be sure that it will work for you, but I did this: I was able to use Zadig to install a USB-driver that made it possible for me to subsequently install Sailfish X on my XA2 Ultra. If this tool helped you, Please donate to me or at least share this tool with friends, so they do not have to waste time.Disclaimer: I do not take any responsibility if you follow what I write below. Just Paste your files (twrp etc, if any) at Desktop, type 'cd desktop' (without quotes) in command prompt and press Enter and Now enter your ADB and Fastboot commands in there

After the installation, Open Command Prompt( Go to Start Menu -> Type command Prompt -> Press Enter) and you can type adb and fastboot commands there. Press OK in confirmation dialog shown in phone during Installation.Ĥ. Double click on Latest-ADB-Installer.bat to start the installation process.ģ. Connect the phone in USB Debugging mode with MTP or File Transfer Option Selected, for Proper USB Drivers Installation Ģ. To update the adb fastboot and usb drivers again, just rerun the tool.ġ. ADB Fastboot and USB Driver installer tool for Windows, which will always install the latest version.

Windows 10 htc fastboot driver