EEVblog #978 - Keysight 1000X Hacking

[sprit]

YOU ARE MY HERO BUD. OMG i cant believe that i can do it. Dammmm. What a long story

[sprit]

The usercal fail, maybe i need to restore to original uboot

[sprit]

After restoring uboot to original, the UserCal error continues to fail. I'll try looking around to see if anyone else has this problem.

[Bud]

The thick trace is worrying me. You may have lost your factory calibration data. This could have happened when you were dicking around with Uboot that had wrong checksum, which caused incorrect ECC being used, which caused more NAND corruption. Factory calibration is different from User calibration.

Post a screensot of a sinewave signal. Frequency does not matter.

[sprit]

Exactly, im lost my calibration data. Now i cant click on the user Cal button any more, its crash.

[Bud]

Find my post in this thread where i attached a file that drops the scope into Windows shell. Get the file and practice using it. Do not change anything in Windows, just practice to browse. Let us know when you are comfortable using it.

This is a lesson for all you people out there with itchy fingers: Do Not fuck around with trying to boot your scope if you see ECC  or FPGA errors. They must be fixed first, or you end up with Much worse situation.

Information how to change Uboot so it allows you to interrupt boot was posted in this thread, it is stunning that even instructions were provided, people still screw up.

[sprit]

Thanks Bud, I hope you enjoyed your weekend

I found it on page 32. And I tried to play around with this Windows CE. I saw you uploaded the UserCal data file, can I use that to fix the usercal crash error? I am not sure how I should load it.

Sincerely,
Feng

[Bud]

Do you have a USB hub ? So you can connect a keyboard and USB stick at the same time to the scope's front USB port.