come on guys, overclocking a desktop cpu is as hard as it is and you are trying to do it on something that only has passive cooling?
maybe +50-70MHz will work fine but more than 100MHz is just overkill as it will not improve the performance that much since the device only has 512mb of ram anyway. you are just wasting battery.
if you don't believe me, test it for your self with some benchmarks.
as i said before, for what i've tested, the best is to leave everything as it is, it runs the best, at least for me.
I did exactly what you did and wifi is still dead...
German official Recovery
German stock Rom
I´m not gonna see a working JB on mine for sure
i have the german recovery and it works fine. have you tried flashing the recovery (the original one) again? Might not work but it's worth a try.