Author Topic: DSOX2000 and 3000 series - licence , have anyone tried to hack that scope ?  (Read 774156 times)

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Offline Bud

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Not sure i understand the turning the thing off and on and resetting  but glad it worked in the end!
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Offline oaba

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I was just reading about it. If you turn it OFF and ON a couple times the scope can boot suddenly.
That did not work for me.
But with the serial connection. I was using the r command to keep reseting it. And it was booting up. That was enough for me to do a firmware upgrade from the usb stick.
 

Offline Bud

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I see. Did you monitor the first "good" startup log? I've seen something that may be interpreted as sort of "self healing" of the flash, when during boot if the scope cant read flash it pulls the second image and if successful, marks failed flash sectors on the first image.
Facebook-free life and Rigol-free shack.
 

Offline Pinkus

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I was just reading about it.
He probably read my comments somewhere about when my DSOX4000 had flash problems. My scope often started 1 times out of 10 when switched on, the other 9 times it hung after a while. Though it got worse and finally, sometimes it needed 100 tries. Sending a Reset through UBOOT will do the same but is quicker and healthier for the electronics than 100x switch-off / switch-on.

@oaba: do not feel too lucky and be prepared: rewriting/updating the firmware did help for a few weeks at the beginning but my scope quickly failed again. Later, even this flash-rewrite did not help anymore (neither USB or UART or ethernet).
 

Offline oaba

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Pinkus.
What was at the end? Because I contacted Keysight they not interested.
Only if I pay for the diagnostic, post, and at the end the new board.  (thousands)

I am thinking to replace the flash. Is there anyone did that before?
 

Offline oaba

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I celebrate with a flash cake. To keep the boys cool :popcorn:.
 

Offline oaba

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« Last Edit: June 21, 2021, 07:20:12 pm by oaba »
 


Online TK

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I am not sure you can replace the flash without loosing calibration and serial number information...
 

Offline Pinkus

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Pinkus.
What was at the end? Because I contacted Keysight they not interested.
Only if I pay for the diagnostic, post, and at the end the new board.  (thousands)
I asked Keysight about the repair and of course I also was afraid, that the examination alone would cost a fortune. But no, it was not. This is what they answered:
Within approx. 4 working days after receiving your device , we will perform a technical examination and send you an offer for repair and calibration.  There are no costs for the examination.

Fortunately, they identified the flash as the cause and applied the service note regarding corrupted flash. Result: free repair  :phew:
To be honest: I knew the problem was caused by the flash chip. If they would have tried to sneak out, I would be a Keysight hater by now. Now I am the opposite as I honor companies that take responsibility for such problems. Win-Win  :D
 

Offline oaba

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TK
You have to dump the content first.
1: with a programmer. (Elnec can program and read this flash.)
2:If you good enough. You can write your own code to make your micro to read the flash  and send it to the JTAG. Trough the JTAG you can have a full controll of you controller. First you have to put it on halt. And after you can run your own software on it. Example read the flash memory and send it to the JTAG.
We should  find someone who has tis programmer with the bga63  adapter.
So you always have a safety net. Even when your scope going to be 20 years old.  You can recover it.
 

Offline Howardlong

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I just realised that in 7.40 Keysight have added USB trigger/decoding, including HS for >=1GHz scopes.

On my MSOX3104T, which already has a kosher factory installed bundle, upgrading to 7.40 didn't enable USB trigger/decode.

I enabled it using the patched 7.40 .ksx with the following infiniivision.lnk:

Code: [Select]
69#"\Program Files\infiniiVision\infiniivisionLauncher.exe" -l D3000USBB

Note that this only applies if you already have the original bundle installed on a >=1GHz scope. The original 1GHz bandwidth and bundle options remain installed.

If you have a different starting point such as bandwidths and/or pre-installed options, different settings may apply.

Note that HS requires a high speed differential probe, whereas FS and LS work on all analogue & digital channels.

Hmm... that feature was pretty much the only reason I have a Tek MDO4000 on the bench, and an expensive Tek differential probe.
« Last Edit: July 04, 2021, 08:06:52 pm by Howardlong »
 
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Offline Electrojunky

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A big thank you to all of the people that have made this possible! You guys are truly amazing.

Does anyone know if this method will work on Keysight's S series oscilloscope? I've searched the forums but wasn't able to find any mention of it.
 

Offline Howardlong

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Has anyone had any luck doing USB HS triggers or decode on the 3104T?

I can get full- and low-speed to work no problem.

I'm using an 1130A calibrated 1.5GHz probe with E2675A differential browser with 01131-62102 91 ohm tips. Scope's calibrated and passes self test. The same happens with an 1131A 3.5GHz probe with differential browser.

An MDO4104C with P6330 3.5GHz differential probe & TPA-BNC adapter decodes just fine.

Screenshots attached...
« Last Edit: July 18, 2021, 04:52:11 pm by Howardlong »
 


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