Free download Xhorse upgrade kit 1.5.3:
Step 1: Download the mega link and unzip it
Step 2: Double click “Upgrade kit.exe”
Step 3: Select the optional interface to update to the newest version, shown as below
Note: Run as Administrator Firmware upgrade MUST be preformed via UpGrade Kit Icon within the Software after installing it as shown in detailed steps below, don’t try to upgrade Firmware the old way ! It will not work as it remains on v4.8.0 as shown on the last screen shot.
It’s neccessay to have the upgrade kit 1.5.3 for vvdi key tool 3.2.3 update:
VVDI Keytool 3.2.3 ME/EU/US/CN: Super Chip XT27 + Toyota H Chip