Lenovo S890 mistakenly deleted the system can not be turned on to ask the master to flash the machin

Strong brush. If there is a problem with flashing the machine, it can't start normally, blue screen, white screen and other situations can not even enter the recovery can be brushed with this method, or there is a problem with the phone, you need to go to after-sales, the first thing is to use this method to flash back to the official system first, otherwise you won't give a warranty. Preparation:

1.A TG card with a capacity of at least 1G, 2More than half of the battery (the time is slightly longer, and it is troublesome not enough electricity) 3

Copy the installation package to the TF card to extract the official upgrade package to get the dload folder, and then copy the folder to the TF card root directory. (It's best to format the TF card before copying, it's best not to use quick format) Third: Press and hold the "+" button of the volume adjustment key at the same time, and then press and hold the power button to keep it loose, until the screen appears red upgrade progress bar.

The next thing is to wait, and the progress bar will automatically restart 2 times after it is finished, and then the rescue machine will be successfully brushed. Oh.

Under normal circumstances, if you just delete the system software by mistake after obtaining the root super permission, which causes the computer to fail to boot, you can solve it by flashing the machine. If it is still not repaired for more than ten days, it may be caused by the busy business of the site, and it is recommended that you can call the **** of the site to consult the specific maintenance situation.

Official website authorized maintenance site** query:

The detailed steps of factory reset are as follows:

1. Turn off the phone completely;

2. When the phone is turned off, press the power button first, and then immediately press the volume down button + volume up button at the same time and don't let go, it will enter recovery after a while, note: press the volume up and down keys in recovery mode to select, and press the power button and home button to indicate OK;

3. After entering the recovery mode, you can choose to restore factory settings, no matter whether the phone is a recovery that comes with the system or a third-party recovery, as long as there is [wipe data factory reset];

4. Select [Wipe Data Factory Reset], then press the boot button to confirm, and then select [yes - delete all data].

5. Then re-select [Reboot System Now], press the power button to confirm, and then start the phone.

Dear Lenovo mobile phone users, hello!

The flashing process is risky, and for your sake, we recommend that you take the time to go to a workshop.

Official website authorized maintenance site** query:

Dear Lenovo users, hello!

Lenovo Community:

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 after-sales site inquiry.

You are welcome to contact us at any time or visit Lenovo Lewen (for consultation.

Do a factory reset. Or flash it, otherwise there's really no way.

Hello dear users:

Sorry for the inconvenience!

If your device fails to perform OTA update (System Settings > About Phone > System Update), perform the following steps:

3. If your device system settings can switch --- default storage location in storage, please switch it to a built-in memory card before upgrading.

4. If the above operations are invalid, it is recommended that you back up your data for factory reset operation and then upgrade again, to rule out whether it is caused by system abnormality, if it still cannot be improved, please go to the Lenovo maintenance site in time for testing, and it can be solved by flashing and upgrading;

5. It is recommended that you recall whether the device has been rooted or modified system file operations, if similar operations have been carried out, it may affect the ** upgrade function, it is recommended that you go to the maintenance station to upgrade by flashing the machine to solve the problem.

Official website authorized maintenance site** query: