failed to boot...

[Lusen]

Hello I need some help with a TGS 200 it will not boot.

The first time a start the BOX this was on the screen "failed to boot... going into debug mode..
[u-boot@TGS200 boot]$

I can flash it whit a uboot.img
but when i flash it whit a update.img I get ERROR (update.img is 2.0.6) the uboot is (Uboot.img is 2.0.6)
"
erase 0xff000000 - 0xff66ffff
Error: start and/or end address not on sector boundary
erase error.
WARNING!!! The STB may not boot in next power up.
The error is unrecoverable.
Capture this screen and contact to vendor.

ERROR

My hardware model : 20323030
My hardware version: 56312e30
Select another file.
or press power to reboot.
"

When i flash whit a nonboot.img I get (ds 3.2 tgs200 nooboot I don’t have another nooboot.)
The U-BOOT is 2.0.6
"
erase 0xff000000 - 0xff9cffff
Error: cannot span across banks when they are mapped in reverse order
erase error.
WARNING!!! The STB may not boot in next power up.
The error is unrecoverable.
Capture this screen and contact to vendor.

ERROR

My hardware model : 20323030
My hardware version : 56312e30

Select another file.
or press power to reboot.
"

I use ITGATE Serial Flashing Tool v1.0 in Control Center 2.2

I have another TGS200 that I don’t have a problem with

plz help