mobile

I have succesfully modded my systemui.apk removing the Sfinder and quick connect, but when I try to modify framework-res.apk and I throw it back on the phone I get bootloops. I don't know how to actually put it on the phone. Root explorer is not working. I don't know if I compiled it correctly or not, etc...
Is editing the framework-res that difficult or am I a just stupid?

Thanks