Lenovo A390t mobile phone Android system how to upgrade to 4 2 2 version

The method of upgrading the Android system of Lenovo A390T mobile phone to the version is as follows:

You can upgrade through OTA**, find the mobile phone information option in the settings of the mobile phone, there is an option to upgrade the mobile phone system, click on the **upgrade inside, you can**check the update and upgrade;

You can also copy the official upgrade package from the official website to the root directory of the memory card of the phone, and then click the local upgrade in the system upgrade, and the upgrade package can be automatically installed;

If you don't want to go through the official upgrade, you can also flash the phone, find a suitable third-party ROM and REC, and then flash the REC and ROM successively.

Hello. I'm sorry, the official system of this model is Android, due to the hardware configuration and product characteristics, the official version of the higher system of the model is not currently available, please understand;

However, please rest assured, please believe that we have never stopped the research and development of relevant system versions, and it is recommended that you continue to pay attention to Lenovo's official channels (including the official website and Lewen, etc.), thank you for your support and understanding!

The latest firmware version of Lenovo A390T: A390T S125 130821, support OTA upgrade mode, because you can't know your current system version, it is recommended that you try it through Settings - About Phone - System Software Update operation path.

If the upgrade cannot be completed by the preceding methods, you need to flash the upgrade. Due to the risks associated with flashing your own device, failure to flash your device may affect your device's warranty, for your sake, we recommend that you take the time to go to your local Lenovo after-sales service center to have an engineer assist in the upgrade.

The address of the repair station.

If you have strong hands-on ability and are willing to bear your own risk, I personally recommend that you pass.

The latest flash firmware within as well as the method to try to complete the upgrade.

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

Consult to find out.

Android phone system upgrade method:

1. OTA upgrade: ensure that the mobile phone is connected to the Internet, enter the settings of the mobile phone - about this machine - system update, click on the ** upgrade package to complete the upgrade operation, or you can find the system update icon through the mobile phone menu and click to upgrade directly;

3. PC kit upgrade: The computer installs the official PC kit of the mobile phone brand or flashes the tool, connects the data cable to the mobile phone, and selects the best upgrade package or the direct upgrade package to complete the upgrade through the computer.

Hope it helps you and have a great day!

You go directly to the mobile phone store, and as soon as you ask, they will understand, and it doesn't cost much, only thirty or forty.

This phone should not have the firmware yet, so there is no way to flash it.

Hello. According to your description, there is no system version of Lenovo A936 mobile phone, only system firmware package, so if you want to upgrade the mobile phone system here, you can go to System Settings - System Settings - System Settings - About Mobile Phone - System Update in the corresponding system check and update when you are connected.

Lenovo authorized maintenance site query maintenance site business hours are usually Monday to Sunday 9:00-18:00, except holidays, the local site will be slightly adjusted according to their own operations, it is recommended to call for detailed consultation when you go, please refer to it.

If you have other questions in the follow-up use process, you are welcome to contact us at any time or visit Lenovo Lewen (for consultation.

Find and click [About Phone], click [System Upgrade], if the above methods cannot complete the upgrade operation, you can contact the nearest Lenovo site for further processing.