Download: //naraeon.net/en/latest-naraeon-ssd-tools/
Firmware update
Select flash drive to use(Back up data in the flash drive before start).
And check data erasure agreement checkbox. Finally, press start button.
Boot with flash drive and follow next instruction.
For Crucial drives: //www.crucial.com/wcsstore/CrucialSAS/firmware/M500/MU05/crucial-m500-windows7-utility-tool-mu05-en.pdf
For Plextor/Liteon drives: http://plextorssd.com/main.html?tmp=self&pg=1&mode=view&cidx=136&pidx=748