Lenovo S658T system can t turn on after upgrading

Dear users, hello!

Your problem is special, you can consult Lenovo background engineer, Lenovo has a special engineer to solve the problem for you, WeChat service consultation. If you have any questions, please consult Lenovo 24 hours** service.

If the boot is abnormal and enters the engineering mode, it may be that you accidentally pressed the combination of the power button and the volume button before, you can try to remove the battery first and force it to shut down, and restart it. Note: You can't press the phone's volume keys at the same time.

If there are many times when the machine is turned on, it will automatically enter the engineering mode, and now it can be entered normally, and you can back up the important data of the fuselage, and then restore the factory settings to see if it can be improved (ps: remember to back up the data before operation to avoid personal data loss).

If the problem is still there and you can't enter the system now, it is not excluded that the key is abnormal or the system is abnormal, and you need to send it to the repair station for detection and resolution.

Lenovo S658T mobile phone system upgrade failed, unable to boot into the system, it is recommended to use the following spikes and steps for a simple troubleshooting attempt:

1.Remove the back cover and battery, and try to boot the device after installation, if it can enter normally, it is recommended to back up the fuselage to try to restore the factory settings (to avoid the loss of important data);

2.If the above operation can not be improved, that is, it may be caused by abnormal system files or data loss of the device motherboard, and it is necessary to flash the machine to reinstall or upgrade the system.

Hello! It's a pity! If your phone fails to upgrade, it cannot be restarted and turned on. It is recommended that you try to re-flash the machine (flashing the machine is risky), or contact the Lenovo mobile phone after-sales inspection and redo system.

Officially authorized repair site inquiry.

You are welcome to contact us or visit Lenovo Lewen (for consultation) when the judgment is dismissed.

Here are a few things to try:

1. Unplug the data cable.

2. Remove the battery.

3. Wait for 10-15 minutes.

4. Install the battery.

5. Generally, it can be turned on.

6. Not yet, try to use the universal charger to charge the battery.

7. Don't use a data cable to connect to the computer anymore.

Under normal circumstances, when pressing the boot button, the trigger terminal voltage of the boot button should have obvious changes, if there is no change, it is generally the first bad contact of the machine key or the boot line is broken, the component is soldered, damaged, the damage caused by the parts, we have no way to repair, can only go to the after-sales service, they have professional tools and parts Yanqin Yan, if within the warranty period, the thick silver does not need money!!

Dear Lenovo users, hello!

Hello Lenovo users!

If you can't reboot your computer, please try to send out the factory settings (backup important files in advance, such as contacts, etc.) The method is as follows: select Wipe Date in Recovery mode, and press the home button and the AFK button at the same time to enter recovery mode.

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If you just get stuck on the boot, you can restore the system through flash mode.

Hello! We apologize for affecting your use. If the installation and restart of your device repeatedly occurs during the upgrade of the group car system, please check the following methods:

1.It is recommended that you remove the back cover and battery to try to restart, and if you can enter normally, you can try the following:

c.If your device system settings --- switch the default storage location in the storage of ruler socks, please switch it to a built-in memory card before upgrading.

d.It is recommended that you back up the fuselage data for factory reset, and after the restoration, re-enter the main menu -- System Settings Collapse - All Settings -- About the Phone -- System Update for Upgrade;

2.If the above operations cannot be improved, it is ruled out whether it is caused by system abnormalities, 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.

Official website authorized maintenance site inquiry:

You are welcome to contact us or visit Lenovo at any time

Consult to find out.

Hello! Before flashing the mobile phone, it must be turned off first, and then carry out relevant follow-up operations (card swiping should also be turned off first, and then turned on to enter recovery), please understand.

At the same time, due to the risk of flashing the machine by yourself, the failure of flashing the machine may affect the normal warranty of your equipment, so we do not recommend that you flash the machine by yourself, you can choose to go to the local after-sales site to let the engineer assist in processing.

You can access:

Find the nearest site. 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.

You are welcome to contact us or visit Lenovo at any time

Consult to find out.

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

The device is powered on and the screen is fixed, and the front wheel is recommended to reinsert and remove the battery for a restart attempt

1.It can be improved after restarting, and it is recommended to optimize and adjust the equipment system, such as using software such as Le'an Zhengxin and 360 mobile phone security guard to adjust and improve the stability of the equipment system regularly; If the operation cannot be significantly repented, it is recommended to back up the fuselage data for factory reset.

2.If it cannot be improved after restarting, it may be caused by abnormal system files or data loss on the motherboard of the device, and it is recommended to send it to the repair site for processing.