Installation
------------
Simply flash it like any regular update.  You should not need to
reset to factory defaults (see note below for exceptions).
You can revert back to an original Asus firmware at any time just
by flashing a firmware downloaded from Asus's website.

If the firmware upgrade fails, try rebooting your router to free
up sufficient memory, without any USB disk plugged in,
then try flashing it again.

NOTE: resetting to factory default after flashing is
strongly recommended for the following cases:

- Updating from a firmware version that is more than 3 releases older
- Switching from a Tomato/DD-WRT/OpenWRT firmware

If you run into any issue after an upgrade and you haven't done so,
try doing a factory default reset as well.

Always read the changelog, as mandatory resets will be mentionned
there when they are necessary.

In all of these cases, do NOT load a saved copy of your settings!
This would be the same thing as NOT resetting at all, as you will
simply re-enter any invalid setting you wanted to get rid of.  Make
sure to create a new backup of your settings after reconfiguring.