How to Enable Unknown Sources in Redmi Note 4 running MIUI version 9.5 ?
Step 1: Open 'Settings' app on your phone.
Step 2: Scroll down and find 'Additional Settings', and then Tap on it.
Step 3: Tap on 'Privacy'.
Step 4: Tap on 'unknown Sources' to enable it.
Step 5: you will see a message at the bottom, read it, and then Tap on 'Ok'.
Step 6: That's it.
It's Done
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