Why won't my phone connect to the Internet?

i had this same problem with my Alcatel OneTouch Pop Star, what i notice is that it accepts onlu USIM, not ordinary SIM, if it doesnt connect to internet with a particular SIM, try another.

I rang Vaya and they told me that my Alcatel phone only works on the 3 G network (which I confirmed on the specifications) and therefore I cannot have both phone calls and internet access as it is a single band phone. I can have either phone calls or I can access the internet but I cannot have both at once.

So, my coworker just had this issue with her Alcatel phone. I went into the section of her settings that covers her cellular data. The switch for cellular network was off (4gLte), therefore it was not allowing her access to the internet via metro/tmobile. I switched it back on and gave it a restart. It works fine now.

"My daughter deleted whatts app by mistake on her alcatel mob.

How does she retrieve it back pl ty."