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How to perform “Restore all settings”?

How to change the status from "is_root=1" to "is_root=0" ?

Can I root my phone?

Can I install the system update on my rooted phone normally?

Where can I find RAM details on my phone?

How to perform Wipe data?

Will "Wipe data" damage my phone?

How to recover my rooted phone?

How to enter Engine mode?

How to check if my phone is rooted?

How can I know whether the system of my phone is 64-bit or 32-bit?

Why is the available RAM less than the fact RAM although I close all apps?

Why is it still "is root=1" although my phone has been recovered?

How to forcibly reboot my phone?

How to exit “工程模式”?

Why are there ads always popping up on my phone?

Why is the total amount of the RAM the apps use less than the Used RAM?

My phone shows Encryption failed. What should I do?