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Hantek DSO5202B Unresponsive After Boot to Scope Grid Display

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dave_n_s:
Title says it all, just about.

Out of warranty Hantek scope that appears to boot nicely, then freezes as soon as grid displayed, with several buttons illuminated in a reasonable way, but completely unresponsive.

I shot Hantek support an email, they asked for a video of it doing and replied back "hardware fault"

I'd have suspected corrupt firmware, but of course it won't recognise a USB stick containing it, on boot.

We're competent EEs, well equipped with other high end scopes but prefer not to dive in without documentation.

Guidance would be most appreciated

Thanks!

//Matt//:
I think that a software issue is more likely than a hardware fault but you never know.  :-// :-BROKE It's a tricky situation since the USB can't get recognised. It may be helpful if you post the video that you sent to Hantek.

dave_n_s:
Good idea.

The video is here:

https://www.dropbox.com/s/ktgzd4rdkbaz2fu/VID_20190416_173302.mp4?dl=0

//Matt//:
To me that looks like a software issue. I don't believe that it could be caused by a hardware fault since it does boot. Did you update the firmware or attempt to hack it or something like that. I think that your suspicion of corrupted firmware seems likely.

dave_n_s:
No, my software days ended with Fortran IV and assembler in the early 80's :-)

It was an ebay purchase that worked properly and then stopped working for no obvious reason.

Didn't try an update and now can't

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