# Restore factory settings ASA5505 aka reset

Connect console cable.

Switch off the device.

While turning it on, press ESC to access ROMMON.

Execute command to skip startup-condif
```cisco
confreg 0x41
boot
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/scaled-1680-/MzmdCxDBF6QZQYkk-image-1785906299456.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/MzmdCxDBF6QZQYkk-image-1785906299456.png)

booting

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/scaled-1680-/z9bQ9UNoWiMKCFQA-image-1785906345559.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/z9bQ9UNoWiMKCFQA-image-1785906345559.png)


Once loaded, elevate privileges and return register
```cisco
enable
configure terminal
congigure factory-defaults
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/scaled-1680-/eZmA3CalTA1NLsEe-image-1785906567787.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/eZmA3CalTA1NLsEe-image-1785906567787.png)


```cisco
config-register 0x01
write memory
```

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/scaled-1680-/eRc2x4ru5pFMfUTV-image-1785906606546.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/eRc2x4ru5pFMfUTV-image-1785906606546.png)

reboot

```cisco
reload
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/scaled-1680-/B9Sf4fAyD1Lz4UQy-image-1785906705834.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/B9Sf4fAyD1Lz4UQy-image-1785906705834.png)

Next boot
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/scaled-1680-/j8DjtfYOyKDaumpd-image-1785907757616.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-08/j8DjtfYOyKDaumpd-image-1785907757616.png)