My xhorse dolphin xp005 did not connect with computer when i tried to update machine via Upgrade kit.
Reinstall Xhorse dolphin xp005 driver, then replug device to try again.
Make sure you have disabled all anti-virus programs before installing driver.
If still not working, change another laptop and run upgrade.
If update ok on Win7, but failed on Win10, you also need to disable Driver Signature Enforcement.