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Maybe this one from UNI-T is similar
https://instruments.uni-trend.com/EU-EN/digitaloscilloscopes/upo2000e.html
Maybe this one from UNI-T is similar
https://instruments.uni-trend.com/EU-EN/digitaloscilloscopes/upo2000e.html
Correct.. This oscilloscope is a rebadged unit from UNI-T. Unfortunately there is no firmware upgrade nor factory hard reset that could deal with this problem. I have seen similar issue (stuck on boot loading screen on other brands before) and the only resolution is to sent back for warranty repair. I believe Francois maybe very unfortunately to have owned this unit and he should seek Farnell customer service for return for warranty claim for such units if it is still under warranty