Huawei G535-L11 - How Do I Restore My Phone to Its Default Settings

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Method 2:
Press and hold the power key, and choose Airplane mode from the displayed option
menu.
2.21 How do I restore my phone to its default settings?
1. Go to Settings. Under PERSONAL, touch Backup & reset. On the displayed screen,
touch Factory data reset.
2. Then, touch Reset phone.