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Sniffing the Rigol's internal I2C bus

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alank2:

--- Quote from: stuartk on January 17, 2014, 06:25:47 pm ---7.  Connect using scpi and issue :SYSTem:OPTion:UNINSTall command which will
      uninstall all keys and save to flash

--- End quote ---

When you did this, did your scope respond with a message on the screen, something like:

Options of official version have deleted.

I mention this because for a long time I thought I was issuing the ":SYSTem:OPTion:UNINSTall" command, but I was doing it wrong and nothing was happening...

stuartk:
Yep it did.

AndersAnd:
What happens if you follow the last 3 steps and use DSEZ as option? Does the model name change to 2202?

alank2:

--- Quote from: stuartk on January 17, 2014, 06:25:47 pm ---I stopped there as the serial number and model number were not correct.
True got model # 2202, I have 2022

--- End quote ---

Odd.  I sure don't get the 2022 thing.  Did the serial stay the common mangled 14 digit 0001 type one?

On my unit when I tried this step 5 fixed the serial, but the model was still wrong until I did a restart and then they were both right in the basic system info menu...

I have a theory that it gets corrupted (maybe this is how the s/n gets mangled in the first place) when you try to do more than one key operation without power cycling.  In other words, to keep a s/n from getting messed up, I would always power cycle after doing a key uninstall, or installing a key.  One operation per reboot.

AndersAnd:

--- Quote from: alank2 on January 17, 2014, 06:50:33 pm ---Odd.  I sure don't get the 2022 thing.  Did the serial stay the common mangled 14 digit 0001 type one?
--- End quote ---
What model# did you select for the custom FW? 2072, 2102, 2202 or 2302? Maybe there's a bug in the FW modification tool that only occurs when selecting 2102?

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