Howto/20161028 Enable LTE for Nexus 4 running 5.1.1

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Motivation

  1. To enable LTE speeds on my Nexus 4 running 5.1.1 which is deactivated by default

Source material

My setup

  • A Nexus 4 running 5.1.1 with a default (locked) bootloader
  • Using a computer running Ubuntu 14.04

The Steps

1) Obtain necessary files (note local copies may be outdated).
2) Prepare computer
sudo apt-get update && sudo apt-get install android-tools-fsutils android-tools-adbd android-tools-adb android-tools-fastboot
3) In fastboot mode (reached by powering off then holding vol down and power button)
  • unlock bootloader
  • optional: flash latest firmware
  • flash custom recovery e.g. twrp
4) In custom recovery e.g. twrp
  • flash SuperSu to get root
  • flash LTE modem
5) Boot phone, install Nexus 4 LTE Modem Flasher app in Play Store
6) In Nexus 4 LTE Modem Flasher app
  • go to build.prop tab, enable LTE and apply
  • go to phone information in menu, Set preferred network type to LTE/GSM auto (PRL)
7) Add new lte apn, if needed
  • For fido LTE: