I am in the unfortunate situation that my N9 no longer seems to recognize wall chargers (no pulsing battery charging light in standby, no notifications or charging indications otherwise).

It probably discharged completely and at first I thought it was a hardware issue (micro USB socket failure).

If I unplug the USB cable from the wall charger and plug it into a notebook or desktop, the cable *does* get recognized (at least sometimes, this seems to have gotten worse than before) and charges (very slowly).

Any advice on whether this is likely a software or hardware issue? Would flashing possibly help? Anybody else having had the same issue?