Xhorse Key Tool Plus DB15 Self-Test Failed Solution
If your Xhorse VVDI Key Tool Plus Pad DB15 self-test is failing, the hardware’s internal VCI module or communication port has likely malfunctioned. A few specific checks can help determine if it is a user error or requires repair.
Step 1: Correct the Test Setup
Disconnect All Cables: Ensure no OBD cables, adapters, or programming cables are connected to the DB15 port while running the self-test.
Run the Test: Navigate to the self-test function on the tablet without anything plugged into the bottom of the device.
Step 2: Check for Pin Damage
Visually inspect the pins inside the DB15 port.
Check for bent, pushed-in, or corroded pins that might be preventing proper contact or causing an internal short.
Step 3: Perform a Hardware/VCI Reset
Go to the update section of your device and ensure your VCI firmware is completely up-to-date.
Restart the tablet entirely and run the self-test one more time.
If the test still fails after removing all cables and restarting the device, your Key Tool Plus is experiencing an internal hardware fault. You will need to contact your original distributor or Xhorse to arrange a device repair.
Tech support:
Whatsapp/Wechat (Lucy): +86 15387077565
Email: sales@xhorseshop.co.uk
Skype: xhorseshop.co.uk
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