How to Solve Failed to Detect Location in Pokémon Go

First download Pokemon Go Apk from here and ready to start with this adventure. Or if you have already downloaded/installed this game and getting error "Failed to Detect Location" follow the steps below.

First make sure you have enabled GPS. This game is working fine with high speed internet (working smooth with 3G too) in my Iris X8 with MIUI 7 ROM . But some of you're might be getting error "Failed to detect location" in your phone. No need to worry its easy to fix.

Goto Settings > Developer Options > Scroll down to debugging > Allow mock locations and disable it.

This will fix the problem. In case if it dont. Restart your phone, indeed.

Open Pokemon Go, make sure GPS is enabled. You must need to connect with 3G in order to play this game. Its not gonna work with 2G at all remember.