http://kb.netgear.com/app/answers/detail/a_id/24874
| Button to Hold | Time to Hold | LED flashes | Boot Menu Mode |
|---|---|---|---|
| Power | 5 seconds | 1 | Skip Volume Check |
| Power | 10 seconds | 2 | TFTP Boot |
| Power | 15 seconds | 3 | Tech Support Mode |
| Power | 20 seconds | 4 | USB Boot |
| Power | 25 seconds | 5 | Memory Test |
| Reset | 5 seconds | 1 | OS Re-install |
| Reset | 30 seconds | 2 | Factory Default |
Ref: http://kb.netgear.com/app/answers/detail/a_id/24874