What should I do if my OPPO phone can t connect to the Internet after factory reset

The OPPO mobile phone can't connect to the data network, you can use the following methods to check it simply:

1. Confirm whether the SIM card standard is consistent with the network standard supported by the mobile phone;

2. Contact the operator to confirm that the SIM card of the mobile phone has opened the Internet function or whether there is any arrears;

3. Make sure the data network switch is turned on, restart the phone or switch on the airplane mode and try whether you can access the Internet;

4. Replace the SIM card to confirm whether it is a SIM card or has poor contact with the card slot;

5. Check whether the Net Net Master is installed, if so, please close the Net Net Master to see if it is normal;

6. It is recommended to restore the factory settings or flash the computer to see if it can be restored after backing up the data; If you still can't use the data network to access the Internet, please bring the purchase invoice, warranty card and mobile phone to the nearest OPPO customer service center for testing and processing.

This is available for all OPPO models.

The following approach is recommended:

1. Shut down and restart.

2. Wait for a while to see if there is an internet signal.

3. Try to connect to the network in a place with a strong signal.

4. Shut down and reinstall the SIM

5. None of the above methods work, it is recommended to reinstall the system.

6. It is recommended to go to the designated after-sales center of OPPO for inspection and maintenance.

If the mobile phone cannot access the Internet normally, you can troubleshoot according to the following conditions:

Situation 1] The contact between the SIM card and the metal contacts of the mobile phone is insufficient, and the SIM card can be reinserted.

Situation 2] If the SIM card is damaged or there is a problem with the mobile phone, you can change the phone to test whether it is the SIM card or the mobile phone is faulty.

Situation 3] The current location is a signal blind zone or suddenly no signal, you can change places to test and pay attention to whether the mobile phone signal of other users around you is normal.

Situation 4] If the mobile phone card is in arrears or is shut down, you can pay off the arrears and turn it on.

Situation 5] The service is suspended due to abnormal use of the number, such as the number being used for illegal or illegal activities.

Situation 6] Roaming in Taiwan, Hong Kong, Macao or abroad can only be used after enabling Taiwan, Hong Kong and Macao roaming and international roaming.

Situation 7] If the total traffic generated by the Internet reaches the ** traffic cap value in the current month, the system will automatically turn off the Internet access function, or limit the speed of the network, and the network will be automatically restored in the next month, which shall be subject to your ** traffic cap rules.

1. If the password is incorrect, please confirm whether the Wi-Fi password is entered correctly, distinguish between case and Chinese and English characters, and confirm whether the Wi-Fi name has changed.

2. If the network refuses to access: please confirm whether it is set for the router server.

Limitations, such as MAC addresses set.

or IP address filtering permissions, etc., in this case, you can contact the router administrator to deal with it.

If you can't connect, it may be the router's settings or hardware failure, it is recommended to check the router manual or contact the router customer service.

3. If there is no prompt or the network access is full, the message is deactivated, or the connection timeout prompts: It is recommended that you remove the phone case, restart the phone and router, and turn on Wi-Fi again to try to connect.

If the network connection is full, the number of Wi-Fi connections may have reached the upper limit.

If the message is disabled, it may be caused by the Wi-Fi network.

If the connection times out: The number of Wi-Fi connections may have reached the upper limit or the Wi-Fi device has been restricted.

1) It is recommended that you restart your router, turn on Wi-Fi again and try to connect or restart your phone.

2) Set a static IP

Try, go to Settings > Wi-Fi > find the corresponding Wi-Fi > and click on the right of the Wi-Fi name"i"icon > IP Settings > select Static .

3) Change to another Wi-Fi attempt.

4) Restore wireless settings only attempts.

coloros 12

and later versions of system phones: Go to Settings > System Settings Reset Phone > Reset Wireless Settings

ColorOS 11 version system phone: Go to Settings > Other Settings > Reset Phone > Reset Wireless Settings

If the above methods cannot solve your problem, it is recommended that you bring your mobile phone and relevant purchase vouchers to the nearest OPPO customer service center for processing.

This applies to all OPPO models.

Factory reset.

It will restore the phone to the state it was in when it first left the factory.

If you want to downgrade the system version of your mobile phone, you need to back up your mobile phone information (**number, SMS, **, etc.) and then bring your mobile phone, purchase invoice and warranty card to the nearest OPPO customer service center to be handled by the engineer.

How to backup and restore your phone.

Restore your phone. You can do this by following these steps:

1. Go to the phone Settings > Other settings > Restore the phone, you can choose the following options when restoring the phone, it is recommended that you choose according to your personal needs:

Reset System Settings Only (Reset System Settings): Only the settings for your phone are cleared, and your saved data will be retained, such as ** and **, etc.

Erase all data (erase all content and settings): Erase all data, including ** and **.

Erase phone contacts and call history (erase phone contacts and call history): SIM card contacts are retained.

Clear SMS & MMS (Erase SMS & MMS): SIM messages are retained.

2. In order to ensure the security of personal information, if the mobile phone has set a lock screen password or logged in to the mobile phone account, when selecting the above options to restore, you need to verify your lock screen account password (you need to keep the network connection when verifying the account password), enter the correct password, and follow the on-screen prompts to operate.

Note: If the phone is set with a lock screen password and logged in to the mobile phone account, some models need to verify your lock screen password first and then verify the account password when restoring the factory, which is subject to the prompts on the mobile phone page.

If you forget the lock screen password or mobile phone password, you can bring the relevant ID documents and purchase vouchers to the local official Paimingwu customer service center to ask a professional engineer to flash the machine Note: The data may be lost during the flashing process.

Tips: 1. For mobile phones with colorOS system, go to Settings > Other Settings > Restore Phone, you can only choose to restore all system settings, erase all content and settings, erase hand dust or phone contacts and call logs, erase SMS and MMS items;

2. For the phone with ColorOS system, go to Settings > Other Settings > Backup & Reset (Restore and Restore Phone), you can choose to erase all application data and uninstallable programs, erase all content and settings, erase contacts and call logs of the mobile phone, erase SMS and MMS items on the mobile phone;

3. For mobile phones with coloros and below systems, go to Settings > General > More > Factory reset > Reset phone to reset, the default initial password of factory reset is 0000, if the lock screen password is set, the factory reset password is the lock screen password.

Note: This applies to all OPPO models.

Want to know how to factory reset your phone.

The following is to introduce you to the operation method, I hope it can help you

You can go to your phone's Settings > System Settings (Other Settings) > reset your phone (Reset your phone) and clear the corresponding content according to the prompts on your phone.

If the phone has a lock screen password, you need to enter the lock screen password to verify before clearing the phone data. ）

Reset Wireless Settings: Reset only WLAN, Bluetooth and mobile data.

Reset All Settings Reset System Settings Only: Reset all settings, including wireless settings.

Wipe all data completely: Erase all data from your phone, including ** and **) and reset system settings.

Clear phone contacts and call logs: Only clear phone contacts and call logs, the SIM card will be retained.

Contact. Clear SMS and MMS: Only clear SMS and MMS will keep the SIM card SMS.

If you have previously backed up your data through the Settings system settings (other settings).

After backing up the data with the Migration (Backup & Restore) function, it is recommended that you copy the data to external storage or a computer for saving.

Since Android 12

The system has strengthened the protection mechanism of app data and user privacy, and all Android 12 phones have removed the function of resetting the phone by "clearing** apps and app data".

If you need to clear the data of an app, you can do so in the following ways: Settings > Apps) >App Management > App List) >upper-right corner":" or "Show System Programs> Select an app > Storage Usage > Clear Data or Press and hold the desktop app icon > App Info (Details) > Storage Usage > Clear Data .

OPPO can restore factory settings, take OPPO R9S mobile phone as an example, the specific method is as follows:

1. Turn on your phone, find the icon of "Settings" on the desktop of your phone, and then click to enter.

2. After entering the phone settings, find the "Other Settings" column in the drop-down menu and click to enter.

3. After entering other settings, find the "Restore Phone" column and click to enter.

4. After entering the restore phone, click "Erase All Content and Settings" to restore the collection to factory settings.

If you are using an OPPO mobile phone (ColorOS system) and cannot access the macro scrambler network or surf the Internet slowly when connected to Wi-Fi, it is usually caused by Wi-Fi signal or Wi-Fi network problems, you can try the following methods:

1. Metal or electroplating.

The case has a certain shielding effect, so it is recommended that you remove the phone case and try it.

2. Compare whether this problem will occur with other mobile phones, or use other routers to go online to compare and confirm; If you can't get internet on your other phones, it's a good idea to check your wireless router.

and whether the broadband network is functional; If the broadband subscription is in arrears or expires, you need to pay or renew it in time.

3. Please confirm whether you have installed third-party VPN software, which may cause abnormal connection, you can uninstall it;

4. If the mobile phone is connected to all Wi-Fi and cannot access the Internet or the Internet is slow:

1) It is recommended that you turn on and off the airplane mode.

Or restart your phone.

2) Reset your phone and turn Wi-Fi back on.

a. coloros 12

For the system phone and above, tap Crash Settings > System Settings > Reset Phone to Reset Wireless Settings.

b.ColorOS system phone, tap Settings > Other settings Reset phone Reset system settings only.

5. If the mobile phone is connected to some Wi-Fi and cannot access the Internet or the Internet is slow:

1) It is recommended that you keep within the effective distance of the Wi-Fi hotspot, a long distance will cause the network signal to be weak and disconnected. You can also restart your router or change your Wi-Fi attempt with a stronger signal.

2) If you can't access the Internet when you connect to Wi-Fi in a public place, you need to open a browser for authentication information before you can access the Internet.

3) If you can't connect to the Wi-Fi at home, you can go to Settings > Connect & Share > Private DNS to turn this switch on or off.

6. If an application cannot use the Wi-Fi network, you can view it according to the following path: (Mobile network.

SIM Card & Traffic Management > Traffic Management > Application Network Management, click the corresponding application to view the network permission settings.

There are 4 options in this setting:

Wi-Fi & Mobile Data]: The app can use both mobile data and Wi-Fi networks;

Wi-Fi]: The app can use Wi-Fi networks, but not mobile data;

Mobile data]: The app can use mobile data, but not Wi-Fi.

Disable Network: The app can't use mobile data and Wi-Fi networks.

If none of the above methods can solve your problem, it is recommended that you back up your mobile phone information, and then send your mobile phone invoice, warranty card and mobile phone to the OPPO official service center for testing, or choose a round trip.

Free postage repair service to send your mobile phone to a designated service centre for processing.