My iphone 4 is stuck in a messed up recovery loop, and I think I may have worsened the problem. Let me explain my situation in full context. Got my iphone 8 months ago -> 6 months ago I jailbroke it with sn0wbreeze on a Win7 laptop // tethered jailbreak on 6.0.1 and I use iBooty whenever the phone dies on me -> just last night I decided to try to add Siri to my phone via cydia and a youtube tutorial -> upon following one of the steps, I had to press to reboot my phone. did so, and it got stuck. only the apple will show on my screen **the laptop I had used to jailbreak my phone initially was just put into the shop to be repaired, so I have only access to a macbook running OS 10.7.5** First I tried downloading and using redsn0w. I tried to just boot the phone, and it would say - Missing Keys.plist for this build Second I tried to re-jailbreak it, using redsn0w. I downloaded the iPhone 4 firmware for GSM, and upon applying it to redsn0w's jailbreak (manually selected ipsw) it would say "failed to decrypt kernel" Third I downloaded the iPhone 4 firmware for CDMA (which I don't believe is correct.. I feel like I used the GSM firmware when I first jailbroke my phone). Tried to jailbreak it with redsn0w and this firmware, it seemed like it was working, until I got the "Exploit failed" message. Fourth I tried redsn0w's Recovery Fix option, and it failed to work as well. Fifth I downloaded evasi0n and it didn't recognize my iphone. Sixth I tried to restore and update my phone with iTunes. It was working for about 10 minutes, and then failed. Seventh After failing to restore with iTunes, I tried to jailbreak with redsn0w again, and this time my phone seemed to respond. I had this image on my phone screen depicting a hard drive with the words "downloading jailbreak data" on it. However, the redsn0w app crashed after "uploading first stage". Eighth I downloaded TinyUmbrella, tried to fix the recovery loop I'm stuck in. My iphone screen registered that TU was working, though it read only about 4 lines on it saying that there were items TU could not find. Nothing happened for 20 minutes after that, so I assumed it did not work. Now here I am. Through writing ^^ that, I considered the possibility that the GSM Firmware I initially downloaded and tried to use with redsn0w was faulty. I confirmed that my phone is a GSM phone, and am now in the process of downloading new firmware to try again. Is anyone able to shed some light as to what may have possibly gone wrong? Or if I'm overlooking an easier way to solve this? At this point, I don't care if my phone needs to be restored with iTunes. I hardly use the jailbreaking features, and just need my phone to work. Thanks, lpc.