If you happen to be on the mode most of times out of country, then having compatible high-speed Internet bands could be a problem on your G4. Not that it supports an less number of bands, but because some of the them might not be activated by default — but can be activated if you have root access. Use of root access is required to put the phone in DIAG mode, rest all is done using the DFS software from cdmatool.
The supported bands listed by LG include the ones given below but if you look into hidden settings menu, you could fine more, that could prove extremely useful to you when roaming around the world. By dialing 277634#*# in your phone app, you can reach the hidden settings menu. To know about all HSDPA bands do this: dial 277634#*#, then tap on Field test, Modem settings, Networks mode (choose LTE band selection for LTE bands info).
Bands supported by LG G4 by default:
- 2G Bands GSM – 850 / 900 / 1800 / 1900
- 3G bands HSDPA – 850 / 900 / 1900 / 2100,
- 4G bands LTE bands – 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 20(800), 28(700)
User duraaraa over at XDA has written a full how-to guide on this, that you can follow to enable the hidden HSDPA and LTE bands on your G4 — we recommend only the brave souls go for the kill, because it may also result in losing network bands. Not a big worry, as you can get them back by flashing an official firmware or even a custom ROM with modem file, but that’s not stuff for a newbie.
You will need to have root access, so here is a procedure to help you get start with hack to enable LTE and HSDPA bands.
Warning: Warranty may be void of your device if you follow the procedures given on this page. You only are responsible for your device. We won’t be liable if any damage occurs to your device and/or its components.
- Unlock bootloader of your LG G4.
- Install the TWRP recovery.
- Root LG G4.
- Now, head over to this detailed guide to enable LTE and HSDPA bands (from duraaraa!).