User manual

Manual optimization items. Click the green button on the right side of each item,
respectively, then do as the phone prompts.
7.7.2. Clean Storage
Use Clean Storage to quickly detect and remove hidden temp (temporary folders
or files), cookie and cache files generated by inner calculations and data exchanges
to free up more storage space. You can also quickly browse and delete unnecessary
user files.
Delete junk files. Click Phone Manager, then click Clean storage. Click End all to
delete all kinds of junk files. You can also choose files to be deleted.