Firmware for KAON 230

[mayo]

Anyone know latest/best firmware for KAON 230?
Thanks

[mayo]

Using:
Upgrade tool V2.30 22 Mar 2004
Current Firmware: KSF-230S S/W V13.05.04 H/W V16.CO.04
New Firmware: R_AT-7010DZ_HW-16.C0.A1_Fech-030121_SW-02.00.06.bin
File downloads but get Fail with following message:
>> Wait a moment..., target un-compressing...
D.Cod block size :1024
Flash Write Start
:>> flash not ok.TargetInfo:> ERR: FLASH WRITE
Anyone know how to fix this?

[mayo]

Correction
Current Firmware: KSF-230S S/W V13.05.04 H/W V16.CO.91