OTG charging without losing SMS?
Is there a way to add the USB OTG charging feature, without losing the SMS support added by this mod, and preferably without losing all my settings?
I bought an OTG cable with an extra micro USB socket on it to plug the charger into, thinking I'd be able to charge while using a USB MIDI interface. Sadly, no. It does power the MIDI Interface though - at least that stays powered without plugging the micro USB plug into the Nexus - so that should save a bit of battery life instead of powering the MIDI interface from the Nexus's own battery.
I can charge my HTC ChaCha Android phone via that cable too, so it seems to work - it's just that the stock Nexus 7 2012 firmware doesn't let you do that.
I've read of a couple of options for adding charging via the OTG cable, but it's a case of wipe it and start again, as I understand it, and with a kernel or ROM that probably doesn't support SMS.
In general, is that the only way to add a feature that the current ROM doesn't have - i.e. wipe it and install a different ROM or kernel? That seems like a poor solution to the problem, assuming I can find one with all the features I want.