vivo

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Can I downgrade my phone to the lower Android version?

How to flash the firmware?

Where can I download ROM or firmware for my phone?

Is there an international firmware for the phones such as X21 sold in Chinese Mainland?

How to unlock Bootloader(BL)?

Can I install the firmware of other phones in my vivo phone?

How to access Recovery mode?

How to downgrade my phone?

How to exit the Fastboot mode?

It prompts "Decryption unsuccessful" while installing the firmware. What should I do?

Find my phone
Storage & File Manager
vivo & Google account
Music & Video
Lag & Stuck
Backup & vivoCloud
Purchase consulting
Personal Hotspot & Wi-Fi