What do you mean? It is disabled and need to connect to iTunes? If so, you just don't need to do that. You can put your iPhone into recovery mode then exit to fix this. Try the tool ReiBoot to enter and exit iOS recovery mode. Tenorshare ReiBoot
This is actually a myth that closing apps on the iPhone increase speed and save battery life. For software updates go to the settings app and click general.
You can if it is a simple password- only four numeric digits. If the complex pass code was enabled in your settings then you will have to restore it through iTunes and lose all of your saved info. If you aren't worried about that just turn the phone off, hold the home button down while you plug it into your computer and keep holding the home button down until iTunes recognizes your phone in recovery mode. Then follow the prompts on your screen until it is restored. If you are trying to save the info on your phone just go to iPasswordhelp com and follow the instructions. I'll link the video below.
Hi don't do it yourself to unlock your iphone3gs. Because some times error may occur. So better you can use remote unlock method. It is the best and safe method to unlock your iphone3gs. If you need remote unlocking service you can visit this site Unlock-Zone.com here you can get the service and unlock your iphone3gs easily.
Unlock-Zone.com