300 MB Limit on iPhone

Have you ever wondered why sometimes you get the message that you are running out of space even though you still have loads on your 16 GB or 8GB? Or sometimes, after installing an application, the icon isn't there or it doesn't work properly....most of this is due to the fact that one of your partitions on your iPhone is either nearly full or full.

The iPhone has two disk partitions. The smaller one is 300MB and is used for OS contents. The larger one is for media and others. Whenever you install applications, it is actually installing on the 300 MB OS partitions. Very soon....it gets filled up.

You either have to uninstall unused applications or you can move them to the bigger partitions. If you are good at UNIX, you can terminal into your iPhone and put some commands to do this. However, someone out there already has written a great tool to do just this.

BOSS TOOLS allows you to move ringtones, fonts and applications to the larger partitions.
It also allows you to see how much space you have left now. You can get this from the installer.

Here is also the tutorial link from the iClarified site I mentioned in the previous post :

How to Free Space on Your iPhone Root File System

P/S : Do it with care. test out with fonts and ringtones first before applications. If you have enough space, don't move the applications.