The hard disk on the mobile phone motherboard is generally BGA package, the surface can not see the pin, at the same time look at the screen print on the chip, there is an English description, you can see how big the hard disk is.
Mobile phone storage space has the following parts:
1, mobile phone running memory RAM, like the computer running memory, mobile phone system and all applications are running on RAM;
2, the flash memory space in the mobile phone ROM, which is similar to the hard disk on the computer.
3. The storage space of the memory card inserted on the mobile phone is also the storage space of the mobile phone. 2. Built-in storage space: refers to the total storage space of the phone's running memory RAM and the phone's flash memory ROM.