If you need to use unbo, (9 1 is not recommended, 9 1 has too many loopholes. Friends who have used it know that most people at home and abroad choose iFunbox. ) The method is as follows:

Open iFunbox

Open iFunbox

Find cache folder

Open the path in if unbox:/system/library/fonts/cache.

Find the font file that needs to be changed.

In the Cashe folder, you can see that there are many files. Just find the following four files. STHeiti-Light and STHeiti-Medium correspond to the Chinese font HelveticaNeue (possibly _H_HelveticaNeue) and the English font LockClock, which correspond to the time display of the locked screen desktop.

Copy the downloaded font file

Copy the downloaded font to the Cashe folder of iFunbox, overwrite the original file, and then restart the iPhone, and the font can be replaced and changed.

Change the time display font of the lock screen desktop.

If you want to change the screen lock desktop time display font, the method is the same. Open the path: /System/Library/Fonts/ Cache in iFunbox in turn, and overwrite the downloaded screen lock time font with the LockClock file in the Cash folder, which is very convenient.

Delete useless fonts

Deleting all font files in cgfontCache.plist, cgfontCache.plist.orig and cache folders in /System/Library/Fonts/ can save 40.8MB of system space. You'd better make a backup before operation!