get the working version here : Flash K800 CID53 with K810 software CID53 (for begginers) - Top Sony Forums
start, far and press ALT+F1 to get to the plugin selection menu, select the jdflasher/just da flasher and whithin the script dropdown list, select pnx5230, port:DCU-60 and click on the "jump down into a large rabbit-hole"