How to set up the mobile phone with oppo r7 card?

The mobile phone cannot recognize the SIM card, so I suggest you:

1, turn off the mobile phone flight mode and then turn on the observation;

2. Reinsert the SIM card to ensure good contact between the SIM card and the mobile phone;

3. If you use a dual card, please turn on the closed SIM card switch in the SIM card management of the mobile phone;

3. If conditions permit, please replace the SIM card of the mobile phone supporting this standard or compare it with the SIM card with normal function and no damage;

4. Back up mobile phone data (phone numbers, text messages and photos, etc.). ) and restore the factory settings (Settings-System "More"-Restore the factory settings, please do not check "Completely Clear") or brush it.

None of the above methods can solve it. Please back up your mobile phone data, and bring your mobile phone invoice, warranty card and mobile phone to the nearest OPPO customer service center for testing and solving.