Upgrade jailbreak 4.1 to 4.2 or 4.3
I have jailbreak my iPhone 3GS iOS 4.1 (8B117) and i would like to upgrade to jailbreak iOS 4.2 or 4.3. Is there anyway or possible for me to keep the current settings and apps that i have downloaded in jailbreak 4.1? If yes, can you guys advice how should i do it?
Thanks in advance...!!!