Lenovo A850 mobile phone after booting up freezes on the Wo interface is what s going on

It shouldn't just be root, you also deleted the wrong system software after rooting.

It is possible to restore the official system with a line brush.

You search for 'A850 Brick Repair'

The first lesson is that you just do it. It takes about 20 minutes to get it done.

Boot and fix the screen, it is recommended to detect after-sales problems, system or motherboard problems.

Restart the computer or unplug the lithium battery.

Dear Lenovo mobile phone users, hello!

According to the description, the phone can't be turned on and stuck on the boot page, and there are still two clear fuselage data. If the system abnormality caused by the deletion or modification of system-related programs or files after the phone is rooted, it cannot be solved by clearing and restoring the factory settings of the phone, and you need to re-flash the phone to restore the use of the system.

We recommend that you take the time to go to your local Lenovo after-sales service center and let the chain lead engineer help you flash the system and restore the system. You can log in to the official website to check the address.

Due to the fact that there is a certain risk in brushing the Jedi machine by yourself, if you have flashing experience and are willing to take the risk, and want to flash the machine by yourself, you can go to the Lenovo official Lewen bar firmware area**The official firmware of your mobile phone and specific tutorials, please try carefully.

Dear Lenovo users, Hello.

According to your description, it is recommended that you do a factory reset of your phone

When the phone is turned off, press the power button + volume button at the same time when the fibrillation is cracked; After entering the recovery, please select Wipe Date;

IDEA Forum.

Think Forum.

Lenovo Community.

We apologize for the inconvenience. If your device cannot enter the system with the fixed screen, we recommend that you perform a simple troubleshooting attempt by following the steps below:

1.It is recommended that you remove the back cover and battery with the battery in a good line, and try to restart, if you can enter normally, it is recommended that you back up the body data and try to restore the factory settings;

2.If the above operations cannot be improved, it may be caused by abnormal system files or data loss on the device motherboard, and you need to flash and check the device. Due to the risk of flashing the machine and may lead to non-insurance, it is not recommended that you deal with it yourself, please take the time to go to the repair station and the engineer will assist you in testing and processing.

Of course, if you are willing to bear your own risk, I personally recommend that you go to the Lenovo Lewen Bar firmware area to find out.

Lenovo authorized repair site inquiry.

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