The memory of mobile phone typing is stored in the lexicon of mobile phone input method, and it can be deleted only by emptying the personal lexicon. Let's use the mobile phone sogou input method to demonstrate the deletion method:

First, turn on the phone, find the icon of sogou input method (other input methods are similar), and click to open sogou input method.

2. After opening the input method setting interface, find and click to open thesaurus settings.

Third, find the function of synchronizing personal thesaurus, and click Open.

Fourth, as shown below, finally click on the lower right corner to clear the thesaurus. After erasing, the memory of typing on the mobile phone is completely erased.