Before place order must check by dialing this code *#3988691# device is asking for code or not

Be sure your counter is not 0 Blocked or unlimited

Support:

• Oppo ONLY JPAN PHONE
• Single SIM
• Phone must ask 16-digit unlock code

Not Support:

• Phone not asking code
• Phone unlock app
•  WITHOUT JPAN PHONE NOT support 
• NO REFUND WRONG carrier 

How to Unlock instruction;

Type this code *#3988691#

And see your phone screen

Phone asking unlock code

then put unlock code

Make restart phone

Now see your phone has been unlocked :)