I've downloaded the U8800_Android 2.3 V100R001C00B526G001(Normal) update to Gingerbread.
I've unzipped it, formatted my sd card and copied the 'dload' map to the root of the sd card.
I have put the card in my mobile and start update with power + volume up AND down.
After 5 seconds (first step) it said Update failed.
What do I wrong?