How to return the old version of the LETV mobile phone system?

Unless an official version is available, it is not possible. Flashing is risky, and you need to be cautious. The ROM used for flashing is not universal, otherwise Google wouldn't have to have a headache for Android fragmentation.

The hardware environment of different mobile phones (SoC, baseband, memory, etc.) is very different, and mobile phone manufacturers have official ROM packages for each model according to Google's source code, and there are CM and other folk ROM teams unofficially, so there will be "ask CM gods to adapt", even so, many packaging parties will be called gods.

Most of the visible "gods" are actually beautified by the official ROM unpacking and adding points** or applications, or by the MIUI package (MIUI seems to be based on CM native, so it is more convenient to be compatible), and these require the hardware model to be the same as possible. Moreover, none of this affects the Android version. So unless the official has upgraded the major version of Android (which is the reverse is a downgrade), you can do it through the official upgrade and downgrade tutorial, otherwise don't fool around.

2. The following is the introduction of the latest version of the mobile phone, as shown in the figure below.

5. After restarting, the homepage of the mobile phone will remind you to successfully upgrade to the latest version.

1.Open "System Update" and enter.

2.Click Latest version.

6.Restart the upgrade as prompted.

7.When your phone restarts successfully, you will be prompted that the upgrade is complete.

LeEco launched a smartphone after the impressive performance of the smart TV business. LETV Mobile hopes to reduce people's attention to LETV mobile phones through covert research and development, and continue to increase the ecosystem. At the same time, through the introduction of experienced management and grassroots R&D personnel, we strive to avoid detours and improve their success chances.

2.The following is the introduction of the latest version of the phone, as shown in the figure below.

5.After restarting, the homepage of the phone will remind you to successfully upgrade to the latest version.

Extended information: LeEco launched a smartphone after the impressive performance of the smart TV business. On February 28, 2015, China Quality Certification Center** shows, LETV mobile phone has passed 3C certification, the model is LETVX600, divided into LTE and TD-LTE two products, the applicant is LETV Mobile Intelligent Information Technology (Beijing)****.

On April 14, 2015, LETV released three flagship products of the dual flagship series of mobile phones in Beijing, namely LE1 series: LETV super mobile phone 1, LETV super mobile phone 1pro, and LEMAX series: LETV super mobile phone MAX.

LETV mobile phones are either pushing high, medium and low-end three, respectively for different user groups, or based on different configurations, to make several mobile phones with different screen sizes.

LETV mobile encyclopedia.

The steps to update the LETV mobile phone system are as follows:

Turn on your phone and make sure it's connected. Then find the software with the words "System Update" to enter.

3.Once you click Enter, an update will appear, and then click Back.

4.If you confirm it, you can click the button shown in the image.

7.When your phone restarts successfully, you will be prompted that the upgrade is complete.

Take the LETV 2 mobile phone upgrade system as an example.

1、Open the LETV 2 mobile phone,Find the system update icon on the desktop of the LETV 2 mobile phone,Click to enter。

2、Enter the LETV 2 mobile phone system update interface,Select the system version that needs to be updated。

5. After the final update is completed, open the phone and it will prompt that it has been upgraded to the new version, and the system will be upgraded.

Tap "System Update" on your phone

Click Latest version.

Restart your phone and you'll see that it's updated to the latest version.

The specific steps are as follows:

The following is the introduction of the latest version of the phone, as shown in the figure below.

After restarting, the homepage of the phone will remind you to successfully upgrade to the latest version.

The method of reverting the old mobile phone system version of the LETV mobile phone can be restored through the mobile phone settings, and the specific operation is as follows:

Open your phone's "Settings" and find "Storage & Backup".

After entering the interface of "Storage & Backup", select "Factory Reset".

Then check the restore system,You can restore the old system version of the LETV mobile phone,Or bring the mobile phone and the purchase invoice to the designated LETV repair point and ask the staff to help restore it。

Find an old version of the flashing bag Flash.

It depends on whether there is a flashing package for the old system.

Directly restore the phone to factory settings, it should be possible to return to the original system. The flagship version is now easy to find online, runs smoothly, and can be used for a long time.

If you haven't installed it yet, it is recommended that you do it:

1. Install a ghost tool on your computer, and use ghost to back up the current system into a file.

2. Install a new system.

3. If you want to restore the old system one day, run the ghost software, and you can restore it back.

If you want to restore the factory settings, you can go to the phone assistant to find it, such as the pea pod. Here's a quick rundown of how to factory reset a pea pod

1.Find the [Mobile Phone Toolbox] on the homepage of the pea pod.

2.Then find [One-click Flash] - [Other] - [Flash Assist], and you can see the function of restoring factory settings.

3.Click and follow the prompts.

The steps to update the LETV mobile phone system are as follows:

Turn on your phone and make sure it's connected. Then find the software with the words "System Update" to enter.

<>3.Once you click Enter, an update will appear, and then click Back.

<>4.If you confirm it, you can click the button shown in the image.

<>7.When your phone restarts successfully, you will be prompted that the upgrade is complete.

2. The following is the introduction of the latest version of the mobile phone, as shown in the figure below.

5. After restarting, the homepage of the mobile phone will remind you to successfully upgrade to the latest version.

Hello, according to your description, our recommendation is:

1. Due to the large range of system upgrades and updates, in order to ensure your normal use, it is not recommended that you return the previous version operation. 2. Reverting the previous version may cause data exceptions.

3. Good luck.

Can't downgrade There are many bugs in downgrading, anyway, the next system update will be fast.

LETV forced upgrade solution。