[Work in Progress] Trying to Unlock Bands (Including B20)

Conclusion

Introduction

About the test

Test-Setup:

How did I test the NVRAM values:

Result:

Conclusion:

Original Bands

Related Articles:

Topic 1: How to unlock LTE frequency bands for the Mi Note Pro

Topic 2: Qualcomm NVRAM Settings & 2G/3G/4G LTE Band Config

Topic 3: Xiaomi Mi5 Qualcomm Diagnostic Drivers (Xiaomi Diag Drivers)

The Important Line

Code: ID Desc Original Value Modified Value 06828 lte_bc_config 2061584302149 2061719111903

What will happen next?

Why post this now and not wait a bit?

Changing the NVRAM values, may be the first step in the right direction, but it's not the end. It needs more than this to enable B20 and more.This topic is work in Progress; I edited some NVRAM values in hopes to unlock more bands for the Xiaomi Mi5. Have a look at the following topics.I've tested it and by the result is that the NVRAM values alone are not enough to enable more bands. In the next paragraph I will shortly explain the test setup and test results.Xiaomi Mi5, In Norway where carriers use Band: 3, 7, 20; Band 20 is for rural areas; Band 3 and 7 are for crowded placesAll but Band 20 were disabled, and I drove out to the countryside (rural area)No Band 20!The NVRAM values are a good start, but not enough to enable more LTE operating frequencies.Short Documentation: A short documentation of the performed test. 4G FDD-LTE bands 1 / 3 / 74G TDD-LTE bands 38 / 39 / 40 / 41Topic 1: How to unlock LTE frequency bands for the Mi Note Pro Topic 2: Qualcomm NVRAM Settings & 2G/3G/4G LTE Band Config Topic 3: Xiaomi Mi5 Qualcomm Diagnostic Drivers (Xiaomi Diag Drivers) Read this article; download the Qualcomm Tools; Get information on how to use these tools.This guide is based on information from this article. I highly suggest you read this. Values are copied from this topic.Windows 10 64Bit drivers for the Qualcomm diagnostic stuff.4G works on Band: 3, 7 and 20 in Norway. Usually, Band 20 is used in rural areas, and Band 3,7 are in use for more populated areas. As I live in Tromsø, I had 4G out of the box.So I will have to go out of the city, to test if Band 20 is active, after changing the NVRAM values, on my Xiaomi Mi 5.Maybe there's a mistake in here, and someone has the time to find it.