The corruption is software, I might be able to fix it ? I'll try changing the battery but it might be baseband corruption causing the phone to reboot.
Noticed that it will also reboot by itself in recovery mode too but not during restoresĪDDITIONNAL INFO : No matter if it's plugged or not, the reboot problem occurĭidn't notice but the baseband seems corrupted 06.15 failed, wifi greyd, bluetooth too. The advice in your article about how to downgrade to 3.1.3 no longer works for 3GS because a few days ago Apple stopped signing that firmware.' If you're a 3GS user experiencing this problem. I think it's an hardware issue, what do you suggest me to do ? (I already took it apart, visually seems OK, all connectors are there. No matter the firmware (tried many versions + jailbroken/non jailbroken. The following iOS downgrade instructions work on most A4 devices, including the iPod touch 4G. Mac: open a terminal an type sudo /Applications/TextEdit.app/Contents/MacOS/TextEdit /etc/hosts. Whether you upgraded by mistake, or you're just looking to bring back the older firmware, now you can downgrade your iPhone 4 or iPhone 3GS to iOS 5.1.1. find a file called hosts that manages connections to the servers: Windows: go to C:\Windows\System32\drivers\etc\ and use a text editor to open the file hosts. Hi, I just bought a used 3GS from Ebay, it was stuck on Recovery Loop, I fixed it.īut then when I started to use the phone, after 3min of use, it will restart by itself. How To Downgrade iPhone 3Gs from Firmware 3.1.3 to 3.1.2. █►► IMPORTANT : ◄◄█ = After replacing the battery you'll need to flash the BB to 06.15 again or if you had stock BB then do a simple restore Device/Version is the firmware you want to downgrade to (ie iPhone3GS 3.1. Details : The battery was at the end of its life, it couldn't bring enough power to the baseband chip.