I purchased my Rigol DHO914 oscilloscope from an authorized distributor in Poland, NDN-Zbigniew Daniluk. It was part of a Black Friday promotional offer, and I paid only $540 for a brand-new DHO914. However, as you know, the buttons do not work.
I reported this issue to the supplier. After a brief phone conversation, they advised me to return the device. I did so, and now I’m waiting for their response.
After waiting for a month, I finally received my Rigol DHO914 oscilloscope back. The distributor sent the device to the official service center in Germany, where the entire mainboard was replaced.
I’m currently testing the oscilloscope, and so far, everything is working as expected.