It is quite simple.
Step 1. You need Sony Reader with sw 1.0.00.21081 (not upgraded)
Step 2. Download file with new sw:
http://rapidshare.com/files/27838275/opt-clock.zip.html
Step 3. Download sw loader:
http://projects.mobileread.com/reade.../eBook_041.zip
Step 4. Unzip everything to C:/ebook/
Step 5. Execute upgrade:
C:\>cd ebook
C:\eBook>ebook ls /proc
Sony Reader utility 0.41 (c) 2006 Igor Skochinsky
/proc/:
drwxrwxr-x 0 Aug 14 2004 13:49 1
drwxrwxr-x 0 Aug 14 2004 13:49 121
drwxrwxr-x 0 Aug 14 2004 13:49 123
drwxrwxr-x 0 Aug 14 2004 13:49 125
drwxrwxr-x 0 Aug 14 2004 13:49 126
drwxrwxr-x 0 Aug 14 2004 13:49 127
drwxrwxr-x 0 Aug 14 2004 13:49 128
drwxrwxr-x 0 Aug 14 2004 13:49 130
drwxrwxr-x 0 Aug 14 2004 13:49 131
drwxrwxr-x 0 Aug 14 2004 13:49 133
drwxrwxr-x 0 Aug 14 2004 13:49 134
drwxrwxr-x 0 Aug 14 2004 13:49 2
drwxrwxr-x 0 Aug 14 2004 13:49 29
drwxrwxr-x 0 Aug 14 2004 13:49 3
drwxrwxr-x 0 Aug 14 2004 13:49 31
drwxrwxr-x 0 Aug 14 2004 13:49 4
drwxrwxr-x 0 Aug 14 2004 13:49 47
drwxrwxr-x 0 Aug 14 2004 13:49 49
drwxrwxr-x 0 Aug 14 2004 13:49 5
drwxrwxr-x 0 Aug 14 2004 13:49 6
drwxrwxr-x 0 Aug 14 2004 13:49 7
drwxrwxr-x 0 Aug 14 2004 13:49 bus
-rw-rw-r-- 0 Aug 14 2004 13:49 cmdline
drwxrwxr-x 0 Aug 14 2004 13:49 cpu
-rw-rw-r-- 0 Aug 14 2004 13:49 cpuinfo
-rw-rw-r-- 0 Aug 14 2004 13:49 devices
drwxrwxr-x 0 Aug 14 2004 13:49 dragonball_mx1
drwxrwxr-x 0 Aug 14 2004 13:49 driver
-rw-rw-r-- 0 Aug 14 2004 13:49 e-ink
-rw-rw-r-- 0 Aug 14 2004 13:49 execdomains
-rw-rw-r-- 0 Aug 14 2004 13:49 fb
-rw-rw-r-- 0 Aug 14 2004 13:49 filesystems
drwxrwxr-x 0 Aug 14 2004 13:49 fs
-rw-rw-r-- 0 Aug 14 2004 13:49 interrupts
-rw-rw-r-- 0 Aug 14 2004 13:49 iomem
-rw-rw-r-- 0 Aug 14 2004 13:49 ioports
-rw-rw-r-- 67112960 Aug 14 2004 13:49 kcore
-rw-rw-r-- 0 Aug 14 2004 13:49 kmsg
-rw-rw-r-- 0 Aug 14 2004 13:49 ksyms
-rw-rw-r-- 0 Aug 14 2004 13:49 loadavg
-rw-rw-r-- 0 Aug 14 2004 13:49 locks
-rw-rw-r-- 0 Aug 14 2004 13:49 meminfo
-rw-rw-r-- 0 Aug 14 2004 13:49 misc
-rw-rw-r-- 0 Aug 14 2004 13:49 modules
-rw-rw-r-- 0 Aug 14 2004 13:49 mounts
-rw-rw-r-- 0 Aug 14 2004 13:49 mtd
drwxrwxr-x 0 Aug 14 2004 13:49 net
-rw-rw-r-- 0 Aug 14 2004 13:49 nlver
-rw-rw-r-- 0 Aug 14 2004 13:49 partitions
drwxrwxr-x 0 Aug 14 2004 13:49 self
-rw-rw-r-- 0 Aug 14 2004 13:49 slabinfo
-rw-rw-r-- 0 Aug 14 2004 13:49 stat
-rw-rw-r-- 0 Aug 14 2004 13:49 swaps
drwxrwxr-x 0 Aug 14 2004 13:49 sys
drwxrwxr-x 0 Aug 14 2004 13:49 sysvipc
drwxrwxr-x 0 Aug 14 2004 13:49 tty
-rw-rw-r-- 0 Aug 14 2004 13:49 uptime
drwxrwxr-x 0 Jan 01 2006 00:00 usbtg
-rw-rw-r-- 0 Aug 14 2004 13:49 version
C:\eBook>ebook um recovery
Sony Reader utility 0.41 (c) 2006 Igor Skochinsky
C:\eBook>ebook pwrite "Fsk" opt.fs
Sony Reader utility 0.41 (c) 2006 Igor Skochinsky
UsbOnlyReqProc() Sequence Error [errorNo=-1, command=0x106, state=1]
Info for partition Fsk
Device: 1, start sector: 0x9e, image size: 0x700000
Ready to write 4415488 bytes to partition Fsk. Are you SURE you want to proceed?
[N]y
C:\eBook>ebook um normal
Sony Reader utility 0.41 (c) 2006 Igor Skochinsky
UsbOnlyReqProc() Sequence Error [errorNo=-1, command=0x106, state=1]
C:\eBook>
Done.