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What is happening with 3G?
sajidalibaig's profile



1 Message

Mon, Oct 28, 2019 2:12 AM

Vivo V15 pro not picking up 4G for att but same phone picks up 4G for Airtel( indian carrier) on att

Hi, I have this phone from India. I am using prepaid att in dallas, texas. I am only getting 3G even though my phone is 4G capable..

Surprisingly, on the same phone on the other sim, my Airtel sim from India shows up with 4G signal on ATT . I wonder what is going on. If the bands are not supported then how come airtel shows up as 4G on ATT signal and ATT itself is on 3G?


Please help or else only option I have is to buy a new phone here.

Accepted Solution

Official Solution

ACE - Sage


90.5K Messages

2 y ago

The Vivo V15 pro is missing 1 3G band (850) and has only one LTE band for AT&T ( 5/850).  It’s lucky it works at all.  
AT&T HSPA/HSPA+ is equal to 3.5G and may show as either 3g or 4G.  

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