I can not restore from miniSD (HTC Tornado)

[RIPin@]

Sory my English.

I made backup to miniSD, before I update to new ROM.

After some time i decided to restore it.

I had three times error "Checksum error".
After that this option "Restrore from SD" is not available for me.
And when i powered it it always go to bootloader.

I update from my PC. And it begun to turn on. But "Restore From SD" not working at all.

I put my card in to the device, turn on, And it go to bootloader screen not to Restore.

Does any one now commands to restore from SD. Like sd2r all??

[Krinkiespijer]

...I'm sorry to tell you but restore backup won't work on new rom update because of other RAM and FAT settings. Maybe you can use 'customization restore' to save some data...

[RIPin@]

The thing is that i can early restore my ROM.

I have made new ROM backup to miniSD. Copy it to the PC. Restore old Backup. Try to restore - "Checksum error" (1 time). Then I write rew Backup to the miniSD. Plug it to the device. While Booting it found SD Backup and retore image from miniSD. After that i write two old backup to SD.
Plug miniSD turn on device - try to restore - "checksum error" (second time).
Then i try format many times my miniSD write old Backup and try to restore - "checksum error" (third time).
After that i try deferent things. I write to all sectors "00". Restore image from file in WinHEX editor. But when i insert it and load my device show only three-colored display.
I try to boot my device but it still show bootloader screen.

Then i Update my ROM again with i-mate_SP5m_RUS_2.6.332.1 from PC. And after that it load normaly.
But when i insert miniSD with backup old or new ROM it does not offer me to restore it. Device directly go to the bootloader mode.
Does any body know how to reset Checksum errors count ????

[RIPin@]

I return to i-mate SP5m 1.6.331.6
But restore from SD option is still unavaliable.

PLEASE whats the use of backup, when i can not restore it??