Make file backup of mini2440
Toggle S2 into NOR side
Connect USB, comport from board to PC, open DNW tool and Hyper Terminal
In Hyper Terminal, press 'u' key to make file back up. After that, click on DNW: USB Port> Backup NAND Flash to File, write the name file and wait (about 8 minutes)
Restore system into mini2440
On Hyper Terminal, press 'r' key, then change to DNW, choose USB Port> Transmit/Restore, find the backup file. It takes around 8 minutes to restore system.
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