Tutorial: How to Format / Hard Reset Nokia N97 or N97 Mini
Mobile Phone Nokia N97/N97 Mini is a smart phone from Nokia which was a hit some time ago. But if you use it with a very intense, the memory of this phone will become full and even phone to hang.
To fix it you do not have to go to a repair or to a Nokia Care Center because you can actually fix it yourself and the easiest step is to reformat your Nokia phone.
But wait, because this format process will erase all contacts and all the data contained in the mobile phone then you should backup the existing data to your computer. To further please follow the video tutorial below