4. If your router has the Adam2 bootloader, and you are running your
manufacturer's firmware, your router's environment will almost certainly be
FRAGMENTED. At best, this would make it difficult to upgrade the firmware. At
worst, trying to upgrade the firmware would lead to the router being bricked.
Therefore, those with Adam2-based routers must tread VERY CAREFULLY when
considering a firmware upgrade. You are most likely to need to DEFRAGMENT your
router's ennvironment (best done with a serial console cable).
[f] If your router has an Adam2 bootloader, the router's environment will almost
certainly be FRAGMENTED. This can cause serious problems with firmware upgrades.
In such cases, you are well advised to get a serial console cable to use for
defragmenting the environment BEFORE attempting any firmware upgrade.