I have received my DS1052E today from DealExtreme. Looks like no hack for me at the moment. Details of my version below:
DS1ED125xxxxxx
Software: 00.02.05.02.00
DSP: 00.00
FPGA: 02.00
HardVersion: 58
Greetings to all my 02.05.02.00 brothers.
I have spent quite an eternity googling for hack. Seems there is just one method used - downgrade the scope to 02.02 SP2 version, then change scope ID and update back to the latest (or any you like) version.
Till version 02.05.01 the downgrading was possible using patched 02.02 SP2 firmware, which fooled the installed version. To understand how, compare DS1000EUpdate.RGL files (actually just first 32 bytes are involved). You need the original (or even patched) 02.02 SP2 version, and the update file to (at least) ONE LEVEL HIGHER version than you have installed in the scope (in our case, something like 02.05.03). Then rewrite the few bytes at the very beginning of the 02.02 SP2 file by corresponding bytes from the update and voila - downgrading file is here. So we have to wait until Rigol guys release new version and then we will see. Or the same method will work (pray for that), or not.
But even if they definitely succeed to stop hacking the DS1052E scopes this way, there is allways another way. Unfortunately not so easy, as it requires chip unsoldering. Look at
https://www.eevblog.com/forum/index.php?topic=1379.0 for details. AFAIK the procedure working for completely bricked scope will work for unbricked as well.
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IMPORTANT EDIT
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Thanks to 'maze' and 'A Hellene' the header secrets disclosed. Congratulation!
For 2.05 SP2 to 2.02 downgrade header see
A successful attempt to create an update.header file for the unhackable 2.05 SP2