[Elecraft] K3: Reloading firmware to resolve problems?

[Iain MacDonnell - N6ML]

I keep seeing references to reloading (the same version of) K3 firmware
to resolve problems. Are there actually any known issues that are
resolved by reloading firmware? Does the firmware contain any sort of
checksum that's verified before a new load is committed? It seems like
"bad" firmware loads should not be allowed to happen... is this problem
solution a myth?

     ~Iain / N6ML