Guide to Lock LTE Band in Qualcomm Snapdragon Android Phones

There are many bands available for the 4G LTE network, also Network provider and Android Phones brands provide multiple LTE bands, sometimes user faced slow speed network problem when phone switch the bands. MediaTek user can Lock LTE Band by MTK Engineer Mode also Samsung smartphone user can lock band via Service Code but Snapdragon Android Phones hard to change. Here we will guide you on how to Lock LTE Band in Qualcomm Snapdragon Android Phones with Network Signal Guru app.

Qualcomm innovated LTE 4G, CDMA, WCDMA, and other wireless devices. Ninety percents of Android phones using Qualcomm Snapdragon chipset because of their quality and innovation. Qualcomm Snapdragon, the only chipset provider 4G LTE, speed up to 1gbps and Qualcomm first devolved 4G LTE chipset for smartphones. After Qualcomm Huawei Kirin and Samsung Exynos developed 4G LTE chipset after that MediaTek also developed 4G chipset.

Snapdragon Android Phones users can lock the band via qpst but its to hard for beginners. But here is an app called Network Signal Guru for Snapdragon device Snapdragon Android Phones user can easily lock 4G LTE bands 2300 Band 40, 1800 band 10, 850 Band 5 to get better speed and network coverage. We will show you step by step guide how to Lock LTE Band in Qualcomm Snapdragon Android Phones.


  • First, you have to root the device you can find the root guide for our root section.
  • A Wifi connection to apply the setting.
  • 4G LTE sim card to change the bands.
  • Download Network Signal Guru app and read our guides.

Network Signal Guru
Network Signal Guru
Developer: QTRUN Technologies
Price: Free+

Guide to Lock LTE Band in Qualcomm:-

1. First Download and install Network Signal Guru app from play store on your android phone.

2. Turn on wifi and connect wifi network nearby you then Open Network Signal Guru app and wait for complete download the config file.

3. Now ‘tap‘ on Magic icon then tap band locking.


4. Now Select ‘LTE. Option to change the band.


5. Select a 4G band you like to lock I will suggest locking band 2300 and 850 for India LTE networks like Jio and Airtel and 1800 for Vodafone.

Lock LTE Band's in Qualcomm

6. After locking the band reboot your device to work it properly.

Here are my speed test result and coverage after I lock 850 bands in Jio 4G network.

My Settings For JIO 4G VOLTE Network:

I really get bad speeds on band 2300+ that’s because most of the smartphones lock their network bands mostly on 2300. So I kept the BAND 3 (B3) 1800 and BAND 5 (B5) ON and disabled the B40 (2300) band. Now I get the stable speeds. You can try changing settings based on your speeds you are getting!! Have a good day, comment below if you need any help!!

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