So, once again a Samsung S3 which refuses to work after the new update (4.3). Battery usually lasts a couple of hours (shuts down at 40%, which it reaches in record speed as well), won't connect to home network (others are ok), lots of other tiny stuff like the phone being slow when I want to get it out of sleep mode. I've done my research, I think, and have done the following: -Factory reset (3x I think) -unchecked: scanning always available, auto network & Wifi power save mode (within the *#0011# mode). This has helped to at least stay connected to the backup network, but no luck for my own yet. I'm stealing the backup one from a neighbour, as does everybody else, so it's definitely not preferable. The battery life seems to have improved, however. I have been trying to install a Android 4.4 ROM through this website. I have done everything as stated in this video. Unfortunately, at the step on 2:20 in the video, my phone downloads the file then says: An error occurred while flashing your recovery. I'm a complete and utter noob, so please bear with me!