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BK2190E Oscilloscope Stay in the on screen.
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tautech:

--- Quote from: dtex on October 27, 2022, 05:48:20 pm ---Life got busy so it took me a while to get back to this. Trying several different USB sticks helped. After trying several USB stickss (all <8GB) I found an old 256MB stick and that finally worked... for one of my two frozen scopes. The other scope does not respond in any way to the recovery USB stick in that the USB stick shows no activity at all when plugged in. I'm going to try the USB-B on the rear of the oscilloscope once I receive a USB-A to USB-B adapter. Will report back after that's done.

Thanks for the suggestions!

--- End quote ---
Good, you got one working.  :-+

Is there any chance the other is older and was running on an older firmware version ?
We may need to use a different recovery process.
slbender:
Slightly off topic, but might be useful.  I have a B&K 2190 completely different earlier unit, but the soldering was so bad - one channel blew a dual mosfet at the input.  Also some of the board interconnector’s pins pulled right out of the board connectors - probably this set escaped being inspected before it was packed in the box.

Steven
dtex:
It is possible that one has older firmware than the other. I purchased two batches of these oscilloscopes, separated by about a year. I don't know which batch each of these oscilloscopes came from.

What would this different recovery process entail? Is there any harm to trying it?
tautech:

--- Quote from: dtex on November 04, 2022, 07:41:15 pm ---It is possible that one has older firmware than the other. I purchased two batches of these oscilloscopes, separated by about a year. I don't know which batch each of these oscilloscopes came from.

What would this different recovery process entail? Is there any harm to trying it?

--- End quote ---
Opening it. No harm at all but the process is more complex.

Continue with email.
dtex:
PM sent with contact info. Thanks!
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