Oppo many phone network & 16 digit lock many country.
oppo phone many models not support box.then create problem.
Then you used qcn file for network unlock qualcomm chipset.
This Method Support models.
1# Oppo A37.
2# Oppo A37F.
3# Oppo A37FW.
4# Oppo R9 PLUS.
5# Oppo A57.
6# Oppo F3 PLUS.
HOW TO NETWORK UNLOCK OPPO PHONE METHOD.
1# Download qcn file.
2# You need z3x or octoplus box.
3# Open your phone devloper option.
4# Go to dial & Types " *#801#".
5# Now show all option.
6# All options enable.
7# Open z3x box.
8# Select SM-G530H Model.
9# Go to backup tab.
10# Write Qcn file.
11# Select Download qcn file.
12# Few Min Waiting.
13# Now qcn write complite.
14# Now your phone rebot 1 or 2 time.
15# Now your oppo phone network unlock done.
I have oppo all model unlock file but file not free if you buy join my facebook best price.
https://www.facebook.com/timalsina58
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This tutorial should and any other on our site should be helpful to any novice to expert users.
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