Some users reported that they have problems updating vvdi mini obd tool firmware and sync device.
If the version is lower than 1.5.0, try several times, change PC or network, if all failed, device information is missing. Need to send back for repair.
If the version is 2.1.50, disassemble the device, replace a new battery, update firmware and sync device again.
Sync device again after replacing battery. Then update firmware via Upgrade kit again.
Follow steps below to replace battery.
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Failed to Update Xhorse VVDI Mini OBD Tool to V1.5.0 Solution