How to restore Lephone to factory state

There are two methods: first, the system settings--- security and location settings in the phone interface--- factory reset. Second, you can put the flashing bag into the memory card, and then turn it off, press and hold the magic mirror and the shutdown button at the same time, light up the screen and release the power off button, and release the magic mirror button two seconds after seeing the English letters appear in the upper left corner, and it will automatically flash the machine.

Locate "Settings" on your iPhone screen

Find the "General" option in the settings list and click to enter.

Find the "Restore" option at the very bottom of the general list and click to enter.

Tap "Erase All Content and Settings" in the restore list, and you'll be prompted that the action will delete all data and settings. Click on the red "Erase."

iphone" button.

We apologize for any inconvenience this may cause.

1. Back up your mobile phone information first, and then go to System Settings - Security & Location Settings - Factory Reset.

2. Or go to Settings - Privacy - Personal Data - Factory Reset, before that, we recommend that you back up your mobile phone information before performing related operations.

If your device is not applicable to the above operations, it is recommended that you can ask for a specific description of your mobile phone model, so that we can better help you, please understand.

If you have other questions in the follow-up use process, you are welcome to contact us at any time or visit Lenovo Lewen (

Upgrading is to upgrade the system, and factory reset is to restore the default system settings and will not change the system version, so there is no need to upgrade again.

Hello. Lenovo Authorized Repair Site Query:

If you have other questions in the follow-up use process, you are welcome to contact us at any time or visit Lenovo Lewen (

Consult to find out.

Insert the SIM memory card from the new one once in the battery state, press the power button to power it down, and then turn it on again, and then if it doesn't work, it will be restored to the factory settings once and sent for repair.

Hello. 1. It is recommended that you shut down and restart your device again and try again.

2. Replug your SIM card and try to use it.

3. Compare the use of your SIM card after replacing it;

4. Back up your device data and try to restore the factory settings again;

If none of the above can improve your problem, it is recommended that you take the time to go to your local Lenovo authorized repair site for inspection and repair.

Lenovo Authorized Repair Site Query:

If you have other questions in the follow-up use process, you are welcome to contact us at any time or visit Lenovo Lewen (for consultation.

Hello. Sorry to hear that. The situation you are talking about may be caused by the loss or deletion of provisioned resources on the memory card.

If yes, then the latest firmware version of the S1 model: S1-37AH0 0 T S 1 001 6112 111207. You can check whether you are this version in "Menu" - "System Information" - "Version Information" - "Firmware Version Number".

**After presetting resources, you first unzip the compressed file, put the folders inside (put the small folders in the large folder under the root directory of the SD card) into the root directory of the SD card (directly put it in the SD card, do not put it in other folders), and then back up the data to restore the factory settings.

If you are not the latest version mentioned above, you don't have to worry, you can take the time to contact the after-sales site to help you upgrade the system and copy the preset resources. We recommend that you take the time to visit.

You can find the repair site information.

The mobile phone is used for a long time, there are many user programs, there are more junk files and temporary files, which will directly affect the compatibility and stability of the system and user software.

As a mobile phone system, it is normal for this situation to occur, and it is recommended to develop good backup habits, otherwise it will be more troublesome if something goes wrong.

We recommend that you use disks to back up frequently used data. For example, 360 cloud disks, cloud disks, and so on.

Hello. We apologize for the inconvenience.

If you want to recall whether the automatic restart occurs under a specific operation or software, we recommend that you perform the following simple troubleshooting:

a.Reboot is now present when specific third-party software appears:

1.It is not excluded that it will automatically restart due to compatibility issues, and it is recommended to uninstall and reinstall or replace other software of the same type.

2.This can usually be improved, but it is recommended that you back up your personal data and try a factory reset after attempting.

b.Occurs without a specific pattern:

1.It is recommended that you remove the SIM card or SD card and turn on the observation, it can be improved after removal, it is recommended to replace the SIM card or SD card, if so, it is not ruled out that the card slot is abnormal, it is recommended to send it to the Lenovo site for repair;

2.If you have other batteries, it is recommended that you replace them, and it is not excluded that the battery is abnormal or too short;

3.If there is no significant improvement after the above operations, please back up the fuselage data for factory reset.

If the problem still cannot be effectively solved and affects your normal use, it is recommended that you take the time to go to the maintenance station for specific testing and treatment.

Lenovo Authorized Repair Site Query:

The business hours of the maintenance site are usually from 9:00 to 18:00 from Monday to Sunday, except for holidays, and the stations will be slightly adjusted according to their own operations.

If you have other questions in the follow-up use process, you are welcome to contact us at any time or visit Lenovo Lewen (

Consult to find out.

There is a problem with the system BIOS. I can't help it, let's change it.

My friend's one had this problem even after he fell.

Oh Reboot can't all be attributed to the system version or flash, oh, is yours a Unicom custom machine Judging from the parameters of Unicom custom machine and the bare metal of the National Bank on the market, Lefeng runs high-quality 3D games and other software that eats hardware, etc. It is easy to cause fake death or automatic restart This is a kind of system protection -. Have a nice time If you have any other questions, you can ask them directly.

Another:Game、Entertainment、Running has been optimized a lot But your mobile phone hardware may not be fully supported,The original music version should also be optimized (especially Unicom custom machine) Then your love machine should do what you can It is possible that you run a browser + **** and other front-end and background software It will cause the system to restart。