vivopd1226t a 1 21 0 was upgraded by me to upgrade the system, and it came out with a robot and thos

Hello! The upgrade progress bar is halfway through and doesn't go.

The user has rooted the phone, deleted certain system applications, or changed system files.

After upgrading, it stays on the robot landing interface, but the upgrade is successful.

If there is a problem with recovery defects or system defects, and there is a problem with the non-upgrade package, you only need to select Reboot System Now to restart the phone or press and hold the power button to force a restart.

After upgrading, it has been stuck in the vivo interface and cannot be turned on.

It is possible that the upgrade caused a data error, and you need to re-enter the recovery mode to erase all the data, and select Wipe Data Factory Reset

BBK's smartphone currently does not have open root access.

There are two main reasons:

1. After the root is opened, it may cause problems such as abnormal use of the phone, crash and restart.

2. From the perspective of security, some illegal programs hijack the communication function and desktop of the mobile phone without your knowledge, which will cause the loss of users' personal privacy and fees. And it cannot support the mobile phone or vivo assistant for ** upgrade. Therefore, it is not recommended to operate this function, otherwise it is easy to bring serious consequences, and the hardware problems caused by root are not warranted after sale.

Hello! According to your description, you are caused by rooting your phone, you need to restore the system, you can go to the official website**firmware upgrade package to restore the system. Enter this link for the firmware upgrade address of each model, click "Service" - search for your mobile phone model in the search box, then select the model, and click on the resource ** - firmware upgrade for the **ROM package.

This is the tutorial, you can take a look. Instructions for firmware upgrades.

It should be that the mobile phone system has crashed, it is recommended to re-flash the phone, if you can't, please go to the regular after-sales maintenance point.

Hello. You can also try a line swipe or a card swipe

This is the Mi 3 Flashing Tutorial and Flashing Package, please flash according to the tutorial:

Flashing Tutorial: Flashing Package:

Where did you buy it, this kind of high-end can even be copied by the system, but it can't be upgraded.

Go to the latest upgrade package under the official website and update it manually.

I bought the Xiaomi Mi 3 in the summer Later, I found that my system can't be upgraded, every time I click on the upgrade system, it comes out with a transparent space, and there is no more, and it can't be upgraded at all, and everyone else has more than 30 systems, but I've always been 21 Ask God to help me.

The update failed, so flash it again.

Pull out the battery Press and hold the volume up button + power on button to enter engineering mode Use the volume up and down keys to select the option with userdate Press the power on button to make sure the phone will be deep formatted It should be fine.

If you want to flash the phone, turn off the automatic upgrade of the phone.,Because the official push of the mobile phone system authority is very low.,It is recommended to go to the machine to find the matching model and brush it yourself according to the tutorial.,It's very simple。

You can press and hold the power button for 10 seconds to force restart the phone. It is recommended to upgrade the firmware of the mobile phone to the firmware upgrade address of each model.

Enter this link next to it, click "Service" - search for your mobile phone model in the search box, then select the model, click on the resource ** - firmware upgrade for the full (ROM) package.

This is a tutorial that you can take a look at. Firmware UpgradeOperation InstructionsIt is recommended to back up your phone's data before the firmware upgrade to prevent data loss.

Dear Lenovo mobile phone users, hello!

We're sorry to be annoying you about using your phone. Lenovo S720 phones do not support upgrading the official system in RE mode. It is recommended that you can first select "reboot system now" or remove the battery and restart the phone, enter the phone's "System Settings - About the phone - System Update" below, **firmware - immediately upgrade to Qi Kai level - automatically restart the phone, and the upgrade can be completed after a few minutes and enter the system desktop.

There is no special risk in this step, you can upgrade with confidence, and ensure that the phone has enough power during the upgrade process.

If the upgrade still fails, it may be caused by a previous system abnormality, you can try to restore the factory settings of the phone first (pay attention to back up important data such as body contacts, text messages, etc.) before attempting to upgrade.

Due to the risk of flashing your phone by yourself, the failure to flash your phone will affect the warranty of your phone, we recommend that you can take the time to upgrade the system at your local Lenovo after-sales service center. You can log in to the official website to check the address.

If you have flashing experience, want to restore the system by yourself, and are willing to bear the possible risk of selling, I personally recommend that you can go to Lenovo's official Lewen bar firmware area**The latest official firmware and tutorial of your mobile phone, please operate carefully.

I used Master Zhuo's flashing tool to get it.,It's also when I choose to find that file disturbance.,Master Zhuo has a one-click flash.,Choose the best upgrade file to open the world.,You can directly search for trillions of files in the early land.,You can start after you choose.。

It's fine to flash the machine, and there is an error in the built-in.

It is recommended to try the following methods to solve the problem:

1. Press and hold the power button for 30 seconds to see if the phone can be restarted normally.

2. Press and hold the lock screen button and the volume plus key at the same time in the shutdown state, release the lock screen key when the vivo interface appears, continue to press and hold the volume plus key, enter recovery mode, press the volume down button to select wipe data factory reset Press the ON key to confirm, and wait for the interface to jump, then press the volume down key to select Reboot System Now and press the ON key to confirm.

If you still can't solve the problem after following the above methods, you can go to the local after-sales service center for testing and processing, and it is recommended to enter the vivo official website - service - service network query - query the nearest after-sales address.

Dear Samsung users:

If there is a failure after the mobile phone system upgrade fails, such as lagging and not being able to enter the system, it is recommended that you bring the purchase invoice, Tongna Tremor repair card and mobile phone to the local Samsung service center, and a professional engineer will help you check the file test.

It is recommended to take the mobile phone store and ask the professional to upgrade the mobile phone before I get the hot running of the mobile phone and consume power.