If the wireless device of the mobile phone is turned off, it can be resolved by clearing all data in the mobile phone and restoring the mobile phone to the factory setting state, the specific steps are as follows:
1. Take the MIUI system as an example, open the MIUI system setting application interface and click \"More Settings\" option;
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2, click the \"backup and reset\" option in the page;
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3. Click the \"Clear all data\" option at the bottom to enter the system restore factory Settings page;
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4. Finally, click the \"Restore phone factory Settings\" button at the bottom, confirm the operation of restoring the phone factory Settings, and enter the phone verification password, which will automatically enter the process of restoring factory Settings.
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relevant content
Sometimes referred to as a personal \"hotspot\
main feature
Here are some basic features of MiFi:
① Storage capacity (need to insert SD card)
2 Host application capability
③ Support the mainstream frequency bands and 4G technology of the three major operators
④ The built-in battery supports 6 hours of effective use and 200 hours of standby
⑤ Automatically sync email Settings and virtual private network connections
⑥ Support APP management
⑦ Theoretical uplink\/downlink peak rate up to 50 Mbps\/300 Mbps
If the mobile phone cannot connect to the wireless network, please try the following common situations:
1. If you can connect before, now cannot connect: 1) Turn off the wireless network and try searching again; 2) Check whether the wireless network password entered is correct.
2. If you cannot connect to the public wireless network for the first time or cannot connect to the public wireless network: check whether other devices under the same wireless network are connected properly and whether the wireless network has set connection restrictions.
3. If the wireless network with Chinese name cannot be connected: Due to device compatibility problems, some wireless networks with Chinese name or special symbol may not be connected. It is recommended to change the wireless network name to English.
4. If the search fails, an error is reported, or the router times out: Check whether the router connection is normal (the cat cannot be connected), shut down and restart the mobile phone and router, and try again.
5. If the preceding operations fail, you are advised to back up important data (such as contacts, SMS messages, and photos) and restore factory Settings. If the problem persists, please bring the purchase invoice, repair card and machine to the service center for inspection.