I music program was deleted by mistake after ROOT of VivoX2 mobile phone, and I music program can be restored only after firmware upgrade.

how to upgrade the firmware of vivo X2: Go to vivo official website-Services-Mobile Phone Upgrade-Find the "X2" model, click Resource Download and download the upgrade package of vivo X2. After downloading, put the upgrade package in the root directory of the mobile phone USB flash drive or SD card (meaning don't put it in any folder).

note: the screen can't be operated in recovery mode, and the up and down volume keys can move the cursor, and the power key can determine the options.

Specific operation steps:

1. Search for "vivo official website" with a computer browser

2. Service

3. Mobile phone upgrade

4. Find the "X2" model

5. Click Resources Download

6. Download the upgrade package of vivo X2 at the firmware upgrade place

7. The mobile phone automatically enters the recovery mode

8. Select "Install Upgrade Software", and the interface will jump, and there will be a choice of upgrading from the built-in storage or the external SD card. For example, the downloaded installation package will be placed in the root directory of the mobile phone USB flash drive, and you can select the mobile phone storage

9. Then you will jump to the interface of selecting the upgrade package, and select the upgrade package downloaded in advance

1. The upgrade interface has a progress bar, and the upgrade is completed after reading the progress bar.