Hey thanks for downloading. I did manage to also get and invite code to bbs.mydigit.cn.
The aforementioned file is a firmware mass production utility for JMicron JMF602 based Solid State drives. The version 090928 is supposed to support drives where there are 8 memory banks. The reason you may want to update your firmware is that the drives suffer from a problem commonly referred to as "stuttering" where very small IO operations can tend to take rather lengthy amounts of time to complete. Other forums reference the "XP_ISP" flasher, but it does not support these drives. I have not yet tried this firmware, so use at your own risk. From the OCZ forums, someone has managed to try it, but never posted the file due to OCZ policies.
Original file was found here . . .
SSD JMF602 090928量产工具 | SSD存储技术 - 数码之家 - 专业数字产品爱好者社区
A reference to the file was found on OCZ forum here . . .
Support Question Unofficial firmware for 250GB Solid
and
General Discussion Firmware update for Core V2?
Enjoy!!