I got it.
It was picky about the USB stick though.
#1 - find a USB stick it likes, plug them in until it recognizes one.
#2 - unplug it and copy GEL file to it.
#3 - turn dp832 off, turn it on, when seeing the rigol graphic press and hold HELP.
#4 - it will prompt to plug in stick, plug it in.
#5 - it will do the update. At the end it says to power cycle, but if you wait, it will reboot itself.
#6 - I had to set mine back to English language.
#6 - now you can press help help and do the power boards. first m4, m2, m1 and then m4, m2, m2.
#7 - reboot the whole thing.