Ok you will get a prompt just yes/ok to everything Now locate the file you downlaoded the 3.1.3.ipsw file Plug your iphone into pc then click restore while holding shift Step 2 add this line to bottom 74.208.10.249 gs. # localhost name resolution is handled within DNS itself. # lines or following the machine name denoted by a '#' symbol. # Additionally, comments (such as these) may be inserted on individual
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# The IP address and the host name should be separated by at least one # be placed in the first column followed by the corresponding host name. # entry should be kept on an individual line. # This file contains the mappings of IP addresses to host names. # This is a sample HOSTS file used by Microsoft TCP/IP for Windows. Step 1 goto c:\windows\system32\drivers\etc\hosts use notepad to open (PLEASE NOTE THIS IS FOR WINDOWS USERS ONLY I CAN DO MAC BUT THIS TUTORIAL IS FOR WINDOWS USERS ONLY) Ok now we are going to hash cydia really easy just follow these step very carefully Now this will be a zip file you must rename from. Ok first of all download felixbrun./iPod/firmware/ 3gs 3.1.3 (7E18)
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I can't jailbreak new bootrom iphone 3gs 4.0(AFTER THIS YOU CAN UPGRADE USING SN0WBREEZE FROM DEV TEAM TO 4.0)īut i can and will provide you the tools to downgrade from 4.0 new bootrom to 3.1.3 Ok let me start by saying that this was no mean task THIS TUTORIAL WAS DONE ON THE BASIS FOR PEOPLE WHO HAVE UPGRADED TO 4.0 AND IT WONT LET THEM DOWNGRADEĪS THEY WILL GET 3194 ERROR SO THIS TUTORIAL WAS DONE AS THERE IS NOTHING ANYWHWERE SAYING HOW TODO THIS
#DOWNGRADE FIRMWARE 3GS HOW TO#
HOW TO DOWNGRADE FROM 4.0 NEW BOOT TO 3.1.3 (IPHONE 3GS)