A little bit modification for FlashPorgrammer/
2.83 do not allows to downgrade, but this "cracked" version can update older flash version.
If you don't want change all folder/files flash names (to *000*), or use older version of FlashProgrammer, You might use this version.
If you want do patch yourself You must do this modification (in only 2.83):
Offset: 4A189 (hex)
replace: [0F 84] to [90 E9]
In other version (ex. 2.78) it's probably in other place (0x000443B4), but i didn't dissasemble this version, and I don't know this in 100%
(Just unpack, copy this file to your orginal program directory, and run!!! This is patched executable file of 2.83)