Hard to say for sure. If you have the option, return it for the seller and get a new one in exchange. If that is not an option, then send an e-mail to Hantek's support and wait a few days for a response.
And finally I would open up the device and check the power supply rails, luckily it will be just a busted voltage regulator that can be easily replaced.
Post time 2019-8-1 11:58:12