It supports estar second stage loader #74, #75 and #76. 1. Install estar-gp2flashbackup_1.4.6.ipk to the box with DCC_E2 -> Tools -> IPKG Packages. 2. Restart the box. 3. Make sure the HDD or USB medium has been mounted to the box, and the box is doing nothing except preparing to backup the FLASH. 4. Backup the FLASH with Setup -> GP2FlashBackup menu.