So as a result of recent lightning storm several of my devices are either dead or in semi-working condition.
One of the devices is the RB2011UiAS-2HnD-IN - it boots, but WiFi signal is extremely weak and only usable if I'm standing right next to the RB. Other damage includes the LCD screen not working at all, and the tweeter is dead too (so no boot sound etc). Internal inspection doesn't show any visible damage.
What I tried so far is reset / restore and power adapter replacement neither of which helped.
I already ordered replacement RB but I really like this particular device so I'm looking for help to either try to repair it and restore the lost functionality, or, as a last resort - some suggestions for use cases in its current state (which is basically - a switch or a wired-only router).