iQOO

Touch Your Heart

How to set the default messages delivery card?

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

Where can I find the SIM card Toolkit?

How to disable my SIM card?

Why is the SIM toolkit gray on my phone?

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

What should I do if I forget PUK?

What is PUK?

What is SIM PIN?

How to set the SIM card as the Data card?

How to change SIM PIN?

Can I change the name of SIM card?

How to transfer contacts from SIM card to my phone?

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