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

How to insert the SIM card into my phone?

How to check the SIM card storage details?

Where can I find the SIM card Toolkit?

How to disable my SIM card?

How to distinguish SIM1 from SIM2?

How to set the default messages delivery card?

What is SIM PIN?

How to set the SIM card as the Data card?

How to transfer contacts from SIM card to my phone?

Why is the SIM toolkit gray on my phone?

What should I do if I forget PUK?

What is PUK?

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

How to change SIM PIN?

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

Can I change the name of SIM card?

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

Where can I find SIM messages?

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

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

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