How to make Nokia n900 hard?

Don't! Hard grid is to turn off the power first, and then press and hold the dial key, "*" key and "3" key when turning on the power, and turn on the power until the word "NOKIA" appears (no key can be released in this process). Wait a few seconds until "Formatting .../.../"appears (some phones don't display it, so wait until the setting time appears), and then you can release the button on it. After a few minutes, the system is formatted and the phone automatically restarts to enter the standby screen.

Attention should be paid to the above parallel machines: keep the power absolutely sufficient, and don't try to turn off the parallel machine and plug in the charger on the way. Prevent burning machine!

Lattice machine is to format the ROM of the mobile phone, rewrite the preset data, and repair all files modified or added by users without authorization, so that the mobile phone is in the preset state when it leaves the factory. 1. The lattice machine will not cause hardware damage to the mobile phone. The storage device of a mobile phone is different from the hard disk of a computer, and belongs to flash ROM. When in the grid, it simply writes superimposed data. There are no problems such as hard disk track partition. Some people say that the CPU is overloaded when the grid machine is running, which is even more harmonic. To put it bluntly, the grille machine is as simple as a switch. 2. The grid machine has little effect on saving the memory of drive C. Many articles say that the biggest drawback of Symbian's system is that it will gradually reduce the memory of drive C during use, and it needs a grid machine to restore it. I don't support this view. My experience tells me that the memory occupation of drive C is related to the number of installed software and usage. In the process of using the software, some necessary related files or some mobile phone operation records will be left on disk C.