Hi, I'm new to the mac rumors forum so bear with me. I bought a iPhone 4 online that I new was broken but I thought was just in a recovery loop. I fix iPhone's quite often but have never seen one like this. So I got the phone restored it to iOS 6.0.1 and everything was working fine but then it started randomly rebooting and wouldn't find a network signal or allow me to turn on WIFI. So I tried resetting network settings and that is when it bricked. Now it won't turn on unless plugged in and and whenever I try and restore I get error 21 and when I try and restore from a custom IPSW I get error 3194 so I've put it in recovery mode and DFU mode but neither are working. I'm thinking it is possible that the battery is bad or has a loose connection because of the random reboot when it was working and the the battery percentage went from like being 20% and then restarted and was at 80%. Let me know what you guys think.