Pre-export HS code verification steps

List of the table of contents of this article:

• 1,Pre-export HS code verification steps How to downgrade Huawei mobile phone
• 2
  、How to downgrade the system of Huawei mobile phones?
• 4, How to downgrade Huawei mobile phone system

How to downgrade Huawei mobile phone

You can view the current version in Settings-System-System Update, and restore the factory version of the mobile phone in the reset.

Step 1: Turn on the HDB switch of the mobile phone. In setting security and privacy for more security settings, turn on "Allow HiSuiteConnect the device through HDB", (If you want to revoke the authorization after use, you can click "Cancel HiSuite's HDB connection device") Step 2: Connect the mobile phone to the computer USB and authorize the computer to manage the mobile phone.

Connect the mobile phone to the computer USB, authorize the computer to manage the mobile phone, and click to agree in the pop-up box. 2: Click the "red dot" in the lower left corner, click Upgrade in the pop-up box, and upgrade Huawei Mobile Assistant to the latest 0.300 version. 3: Click System Update and click to switch to other versions in the pop-up interface. 4: Click Restore.

You can use Hisuite mobile phone assistant to reverse the system version. You need to follow the steps: connect the mobile phone to the computer USB, authorize the computer to manage the mobile phone, click the "Agree" button in the pop-up box, and click to agree to the Huawei agreement on the mobile phone.

If you need to connect to the mobile phone assistant, you can choose wireless connection or USB connection. It is recommended to use USB to connect. After the mobile phone assistant is successfully connected, click the system update.

How to return the version of Huawei mobile phone?

1. After unlocking the Huawei mobile phone and entering the system, select the setting icon of the mobile phone to enter. After entering the settings, in the search box, enter HDB and select the option below to allow HIsuite to connect devices through HDB. After clicking, in the more security settings of the mobile phone, the option switch that allows HIsuite to connect the device through HDB will be turned on.

2. Before returning, download the computer version of HiSuite Huawei's official mobile assistant on your computer.Please manually upgrade Huawei Mobile Assistant to the latest 0.300 version first. Connect the mobile phone Step 1: Connect the mobile phone to the computer USB, and authorize the computer to manage the mobile phone to agree to the upgrade Step 2: Click the following consent button in the pop-up box.

3. First, we turn on the mobile phone and click "System" in the mobile phone settings. Then we click to open "Reset" in the pop-up window. Then we can return to the original version by clicking "Restore Factory Settings" in the pop-up window.

4. First, open the main page of Huawei mobile phone and select [Settings]. Slide down the page and select [System and Update]. Then on the displayed page, select the [Reset] menu. Next, select [Restore Factory Settings] and continue to the next step.

5. At present, only the SD card version is supported.2) If you have rooted, please unroot first. And back up your own things. 2) The regression version must pass the transit package, and only this version is allowed to be regressed to the stable version.

How to downgrade the system of Huawei mobile phones?

Step 1: Connect the mobile phone to the computer USB and authorize the computer to manage the mobile phone.Step 2: Click the agree button below in the pop-up box, and click to agree to the Huawei agreement on your mobile phone. Step 3: Click "Red Dot" in the lower left corner (red box part), click Upgrade in the pop-up box, and upgrade Huawei Mobile Assistant to the latest version 0.300.

Connect the mobile phone to the computer USB, authorize the computer to manage the mobile phone, click the "Agree" button in the pop-up box, and click to agree to the Huawei agreement on the mobile phone. Click the word "Huawei Mobile Assistant" in the lower left corner of the assistant interface, click "Upgrade" in the pop-up box, and upgrade the Huawei Mobile Assistant to the latest version.

After unlocking the Huawei mobile phone and entering the system, select the setting icon of the mobile phone to enter. After entering the settings, in the search box, enter HDB and select the option below to allow HIsuite to connect devices through HDB.After clicking, in the more security settings of the mobile phone, the option switch that allows HIsuite to connect the device through HDB will be turned on.

The first step is to click and open the settings app. The second step, after coming to the setting page, click the system option pointed by the arrow. Step three, in the system page shown in the figure below, click the arrow on the right to reset.

If you need to reset the system of Huawei mobile phone, you can restore the mobile phone system to factory settings, open the Huawei mobile phone and click the option of settings to enter. After entering the mobile phone settings list, slide to the bottom and select the system to enter. In the system settings interface, click the reset option.

How to downgrade Huawei mobile phone system

1. Step 1: HandConnect the computer to the computer USB and authorize the computer to manage the mobile phone. Step 2: Click the following consent button in the pop-up box, and click to agree to the Huawei agreement on the mobile phone. Step 3: Click the "red dot" (red box part) in the lower left corner, click Upgrade in the pop-up box, and upgrade Huawei Mobile Assistant to the latest version.

2. You can try to use the mobile phone assistant and the return package to return. Before returning, pay attention to ensure that the current system is the official version of Huawei. If you have flashed the unofficial system package or have unlocked and Root operations, there may be a risk of return failure, resulting in other problems. It is recommended to go to the after-sales outlet after backing up the data. Restore the system.

3. OK. Specific operation steps: Step 1, open Huawei Mobile Assistant on the computer, click the red box in the lower left corner ("Huawei Mobile Assistant" + version number), click Upgrade in the pop-up box, and upgrade Huawei Mobile Assistant to the latest version.

4. The way to solve the downgrade of Huawei mate9 is as follows: First, open the Huawei mate9 mobile phone and select the "Advanced Settings" option in the mobile phone settings. Then on the advanced settings page, find the "Backup and Reset" option down and click to open it. Then on the page, select to open the "Restore Factory Settings" option.

5,.. First, follow the prompts on the computer to authorize the computer to manage the mobile phone, click the consent button in the pop-up box, and click to agree to the Huawei agreement on the mobile phone. Under normal circumstances, Huawei Mobile Assistant will automatically pop up the upgrade. If it does not pop up automatically, please click the red box in the lower left corner,... Click the system update. Pop up the system update interface.