I am refering to post #147
PROBLEM IS SOLVED
it turned out, I needed to do it a few times, and also reboot a few times, then suttently it report back correct upgraded type number
AND it also let me load it 300W
like shown here,
The is no feed back in the SCPI screen, i did the exactly same thing, copy and pasted,
so i could not have spelled wrong,
anyways i am happy, but a little bit worried if I need to use the scpi modes one day, seems like it is not too much alive or responding like my other siglent devices,
this one dont even say hi, when connected, i need to type *IDN? to get an answer,
none of the 4 upgrade commends returned anything.
I also did the trick mentionened in #149, but again, my unit did not repport the correct type number, then a few tried and reboots later,
it seems to work.
thanks to you all again, for sharing this, and supporting it.