Hello, thanks all for share your experiences and information about our Rigol oscilloscopes.
My case takes about a DS1052D wich I bought less than a year ago, finally I decided to upgrade to DS1102D and got an expensive brick.
This is DS1052D, HW version 58, FW version 00.04.02 SP1, and the serial number is DS1EU175000xxx
Obviously serial commands to change serial and model didn't work.
I tried downgrade directly using "DS1000DUpdate.RGL", the oscilloscope detected pendrive but didn't perform any flashing process.
I tried to modify the header of the FW file to identify the same version as my unit and later, but nothing happens.
Finally I decided to desolder the flash for myself, made a backup with an external programmer, and changes the serial letters (to DS1EA) and model name (DS1102D) at the binary image, but when solder again, the oscilloscope was dead
I retried with many images extracted from official FW upgrade files, removing the header and concatenating the 4MB image of this file with the last 4MB of my original backup wich contains serial, model name and suposed calibration data, but the oscilloscope remained dead.
Finally, I got scared and restores exactly the original backup and the oscilloscope breathed again, got back to live, but when enable any channel (analog or logic analyzer) it shows random garbage waveforms, does not matter if I connect the probes to an stable 5V, GND or test waveform pin
I performed many times the autocalibration procedure, this makes many tick-tick sounds, complete the progress bars, but when finished, it shows the same behaviour.
I think the factory calibration data is on flash, and I restored the original backup, so it must have this data intact.
Anyone knows how is happening inside my oscilloscope?
Thanks and greetings.
Daniel