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Lag & Stuck
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Backup & vivoCloud
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Personal Hotspot & Wi-Fi

Why does the signal switch to 3G or 2G when a message comes? 3. Why does the signal switch to 3G or 2G when a message comes?

What can I do if the phone cannot send messages successfully?

Why can my phone not receive messages?

Why does my phone delay in receiving the messages?

What should I do if the messages sometimes fail to be sent?

Why can I not successfully send MMS?

Find My Phone
Lag & Stuck
Storage & File Manager
Purchase Consulting
Backup & vivoCloud
vivo & Google Account
Music & Video
Personal Hotspot & Wi-Fi