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Lag & Stuck
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How to set the SIM card as the Data card?

What is SIM PIN?

How to distinguish SIM1 from SIM2?

How to insert the SIM card into my phone?

SIM Toolkit is always showing error. What should I do?

How to disable my SIM card?

How to set the default messages delivery card?

What is PUK?

What should I do if I forget PUK?

How many SIM & SD cards can be inserted into my phone?

How to change SIM PIN?

How to transfer contacts from SIM card to my phone?

Where can I find the SIM card Toolkit?

Can I answer or make calls if the SIM card is disabled?

How to check the SIM card storage details?

Why is the SIM toolkit gray on my phone?

Can I change the name of SIM card?

Where can I find SIM messages?

Is there any limit to the contacts number saved on SIM card?

Can I transfer the messages stored on the phone to the SIM card?

Can I remove or insert SIM and SD card when my phone is on?

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