I was thinking you wanted ldr.bin to run SD commands but had replaced the 1fichier link for V6.40 as well in initial post here in case you needed it to make full cure too. But if Loly couldn't help it's probably a goner . Did you also try modified boot.bin as *.rgn file flashed remotely with Updater.exe for text cmd execution [erase rgn48 etc]? Open a thread if you haven't given up [if the original fw cure flash doesn't work that is] ....