@SanFable
I would say the answer to your question is
NO that is NOT the correct Hex byte to replace.
(But I am not an expert)
I have been experimenting with the latest 04.04 firmware as downloaded from Rigol
I opened the file in notepad++ and used the HEX plugin to view the hex file
I searched for "e50100a86108080510096089e67d0050"
which is found at 00019710
and replaced "e50100a86108080510
096089e67d0050"
with "01" and did a SaveAs to a compatable USB memory stick
Then I inserted into the 1052E and it asked if I wanted to replace the same firmware with new?
I said OK and it did complete the update
After restarting it now
And I now have a new sweep time of 2ns VS the old 5ns
I then did a SELF CAL
And now the scope SEEMS to be working correctly as a 100 MHz scope
It still shows 1052E in the system info screen
I am measuring a 3.9ns rise time with my 74AC14 fast edge pulse generator
Hope this helps you
cheers
Dwight
I have attached the MODDED 04.04 file I used for MY scope. (use at your own risk)