You can search for the same query on the Google where you can get the list of link which are having the download for the same as you are looking for. As per your query i have search and got a nice tools which is known as the Advanced Phonebook which is freeware and can be downloaded easily. So of if you can then download the same from the Google Search.
That is a normal problem which is experienced with your china model phones or types of clones and therefore I suggest you to contact the manufacturer or the distributor to fix the issue or alas replace your china phone. Basically China mobile phones are cheap phones and die soon if some R and D are done on this cheap phones.
First install the pc suite for china mobile phone and then connect your mobile phone to your pc. By the way how are you connecting your mobile phone to pc, by usb or by bluetooth? However, if you try to connect your mobile phone without the pc suite then your computer should recognize the mobile as flash drive, is there any memory card present in the phone?
I think that you will have to buy flash-downloading cable from eBay and find Spiderman 2.55 and then save flash and format phone memory. Another option is just remove the battery & remove both SIM, wait for 2 minutes and the again insert SIM, place battery & switch on or else you will have to go to mobile repair shop and Tell them to Flash your mobile phone. It comes back to normal mode. In other words, they copy the cell data on their PC, then change the settings to dual simcard.
Connect your china mobile DX901 to your computer and then go to control panel and click on add or remove hardware. From there try to take the option to automatically search for new device connected to your pc and when it is recognized, install the drivers automatically for it. Other solution is to go and check in Device Manager, whether any device is listed with yellow exclamation mark, if it is, then again install drivers for it by clicking update drivers.
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