My C drive is only 2.5M now, which will not affect the operation. The main reason is that the running memory can't be less than 7M, and when you need to run large-scale games or run multiple programs at the same time, the memory on the C drive can only run smoothly if it is not less than 7.8M Let me introduce my experience in slimming the C drive.
1, open your theme mode, copy all the themes stored in your mobile phone and transfer them to the card-type memory, that is, transfer the theme of disk C to disk E, and a theme will cost several hundred K, which will save a lot of memory space for disk C, but the default theme of the system cannot be removed. Please note;
2. Restore the font to the default font, or download the font of E disk version or install the input method on E disk to reduce the space occupied by C disk;
3. Download cleaning software to clean up the junk files on disk C. ..
Reference: Saipan 6600 Smartphone Forum, there is always what you want!