[G3 General] jgray3493:
Ok people, after scrolling from forum to forum looking for a way to edit my build.prop for better data performance I've come to a couple of conclusions........The main one is that the majority of people end up bricking their phones. Either from being noobs or even a developer simply forgetting to change permissions. The other is that pretty much ALL of the lines people say to edit or even add just simply do not work. I'm posting a method I found in a forum,I can't remember which one but it's the one I use and have found to be the most helpful in getting a better signal.

You must be rooted!!!

First download an app from the play store called #SHORTCUT MASTER#

https://play.google.com/store/apps/details?id=org.vndnguyen.shortcutmaster.lite

This app let's you access the G3's hidden hidden menu. You can scroll into numerous hidden folders and files. Some I wouldn't mess with!!! Open the app and go to the settings within the app. Click on "Secret Code Explorer". Scroll down until you see this folder below..........

""""33233323 com.lge.hiddenmenu .ErrFatalErrFatalBroadcastReciever""""" CLICK ON THIS!!!!

Scroll down until you pass a couple "Rat_Selection" folders. I believe you want the third but incase I have placed some screenshots below to help out. Rat_Selection let's you instantly switch from 2G, 3G, 4G, LTE depending on your coverage area. Not sure about which coverage area you are in? Here's another useful app that allows you to check ALL CARRIERS COVERAGE AND ALL NETWORK SPEEDS to help you get some Info about what speed you should switch to if any.

Download "Open Signal" from the play store.

https://play.google.com/store/apps/details?id=com.staircase3.opensignal

Again check the screenshots if you don't believe me. This app is extremely useful!!! Ok so go ahead and finaggle with these two apps and see if it helps any of you and post some feedback. Good or Bad. Last but not least if you just want to edit your build.prop for whatever reasons here are a few lines I have added to mine just to see if they would help and as of right now I'm not sure if they helped but adding these lines did not brick my phone. Changed permissions rebooted and everything seems fine. As I said I'm not sure if they work but obviously doesn't hurt anything. As of now

ro.ril.gprsclass=34 ---- gprs (edge) speed settings

ro.ril.hsdpa.category=28 ---- HSPA+ Download speed settings by category. Cat 28 is the highest

ro.ril.hsupa.category=7 ---- HSPA+ Upload speed settings by category. Cat 9 is highest, 7 seems to work just fine tho

ro.ril.hsxpa=5 ---- setting to enable hspa+ for the upload and download

#Better signal.

persist.cust.tel.eons=1

PS........

I know I said that changing or adding certain lines don't seem to work but I think "hypothetically" that if you switch to say,3G that maybe adding these lines could help with the DN and UP SPEEDS?? Not sure but just saying

FYI I'm not taking credit for anything just sharing what I've learned. These are not my own edits but found on different forums. If this is a repeat post just go ahead and delete. If this helps anyone please hit the thanks button, if not then please feel free to leave constructive criticism or just plain out bash me......