SIM unlock code of all OnePlus is available, which means OnePlus One can be unlocked easily with an unlock code. It is a fast and secure way to unlock the phone by IMEI. You can unlock all OnePlus One devices from any network. Once the restriction is removed, you can use all GSM SIM cards on your phone.
To unlock your phone, we need only 15-digits IMEI. You can find the 15-digit correct IMEI by dialing *#06# on the phone.
The unlocking of the OnePlus One by code does not avoid warranty—the recommended method by the manufacturer of OnePlus to unlock the phone by code.
The unlock code of OnePlus One comes from the database of manufacturer or network provider, means it will work 100%.