Joke Collection Website - Public benefit messages - OPPOr 1 1 How to restore the original system version of the mobile phone?
OPPOr 1 1 How to restore the original system version of the mobile phone?
OPPO mobile phone system supports updating the old system version, but the underlying system may be modified in the process of updating the mobile phone. If you want to downgrade the mobile phone system version, it is recommended that you back up your mobile phone data (phone number, SMS, photos, etc.). ) and bring your mobile phone, purchase invoice and warranty card to the nearest OPPO customer service center for engineers to handle. Thank you for your cooperation.
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