How to Setup & Use Nokia 3210 4G ( Complete Beginners User Guide / Manual) 

i tried every setting to get 4g but my phone gets stuck on 2g despite my sim having the correct band for 4g on that phone. i can even select the 4g network setting but it tells me it cant connect again and again. ( i use talkmobile) is there anything i can do to fix that?

Can you assign new function on right key which is camera by default

whats the call quality like on both ends?

It can add an apps? Or download the apps?