there will be a small hole on the side of the phone.
trick is to cut sharp end off a pin and push it into hole to catch the mechanism/ hole to release the tray. Then slide the nano sized sim in the tray cassette back in phone
I suggest you can approach Simpleunlocking.com and specify the country,locked network of Alcatel One Touch Mini .Based on the availability you can get the permanent unlock service along with free instructions.
FRP is full reset protection. Normally this is done with gmail account. Even Samsung and apple iPhone has their own way for frp lock. Now if you want to reset it it ask for gmail log in details then only you can do it. Or other word you need to ulock alcatel a30 tablet by other means. And turn off frp lock from setting.
http://mobile-cellphones.blogspot.com/
When you're not making a call the volume up button made the ringer get louder. When you ARE making a call, that same button raises the volume of the phone in your ear.