Although iPhone has the function of Google Map, it is not availiable without network (wirless or GPRS). Certainly we couldn't waste this function. Thus someone created a method which can use google map without network. That is to store the map in your iphone in advance.

　　At the same time we can exchange different maps of various cities by programme. Now let us show how to do that.

Preparations：

　　First we need to download map exchange programme--iLM and map. Here we use maps of Beijing and Shanghai as an illustration.

　　After download, install PXL files of iLM with iBus, and then install Map, dicompress it and you will find three files in it.下

　　Copy these three files to \var\root\Media\Maps\***\ with iBus, you need to set up your own contents of Maps. “ *** ”is the name of your city. It is easy to tell. For example: three maps of  Shanghai is \var\root\Media\Maps\sh\。

Clue: We can use other software to copy maps, such as Total Commander.

　　Here we has installed the maps of Beijing and Shanghai

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