Learn how to PUK unlock the OnePlus 6T. If you enter a PIN code incorrectly several times in a row, the device blocks you from attempting again and may also permanently damage your SIM card.
Confirm one of the following or similar error messages are on the device:
- "PIN code blocked. Enter PUK code."
- "Enter PUK code"
- "SIM card locked. Emergency calls only. Please contact Customer Care."
- Contact Customer Care to request your PUK unlock code.
- Provide them with the SIM card number.
- On the screen of SIM PIN it will ask for PUK code.
- Enter PUK code.
- Your Phone will start and SIM will be Unlocked.
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