[General Topics] mabry:
When I first got this phone back in March I bricked it the next day playing around with it. [MENTION=1132315]petermg[/MENTION] posted the firmwares for this device on July 24th. Luckily I kept it. Big thanks to him for sharing them.

This method also works on the Boost Mobile LG G Stylo LS770 which I have tested on AT&T, also.

Downloaded the files from the Sprint LG G3 SIM Unlock guide.

You will need:

a rooted device

Shortcut Master lite (in the Play Store)

Root Browser (in the Play Store)

files in attachment

1. Go to Settings/About Phone/Software Info and hit build number 7 times to enable Developer Options

2. Go to Developer Options and make sure Enable OEM Unlock and USB Debugging is checked.

3. Root with Kingroot

4. Download Root Browser from the Play Store

5. Open Root Browser, go to /carrier/apps and delete everything in it.

6. Copy the files from the attachment below to the same folder /carrier/apps. Make sure the permissions are set correctly. 'node.db' needs to be set at rw-rw 0660, 'node.db-journal' needs to be set at rw 0600. You can use Root Browser. I had no issues.

7. Now to go /data/data/com.android.providers.telephony/databases and delete everything in it.

Now would be a good time to go to Settings/Mobile Networks/Network Mode/ and put it on GSM/UMTS

8. Power Down phone, put in your GSM SIM card, and boot on up.

9. Open up Shortcut Master lite and do a search for 'apn' without the quotes. We are looking for one that says Hidden Menu com.lge.hiddenmenu.ModemProtocol.ApnSettings. I attached a pic. Once you select it, you will need to hold down the recent windows button and choose New APN, or just select the one already there from Sprint/Boost and edit it. Your choice...

Once you are done adding/editing APN, don't forget to hit the recent window button again to save APN. If you just hit the back button, you will have to redo it. Once saved, then make sure it is selected. Your data should show up.

Things to keep in mind:

You might not get LTE. Sprint has different bands/frequencies than GSM.

You will get HSPA & HSPA+. I did a speed test on AT&T Go Phone SIM and was getting 12mbps easily.

I did a ##72786# BEFORE I did these steps. Every reboot it tries to do a Hands Free Activation. It doesn't mess nothing up, but just annoying. Also I get a message saying 'can't complete init setup due to GSM network' You can ignore that also. Also, since my device wasn't activated first, my hotspot options disappeared. I haven't found a way to put it back yet.

Signal Meter only shows 3G, but Settings/Status shows HSPA or HSPAP (+) (see screenshots)

I think the SIM card you are going to use has to be active? I tried a T-mobile SIM and didn't get no signal. My AT&T SIM was. Let us know, please.

To undo what we just did, just dial ##72786# in dialer. My Tribute 5 is bad ESN for Boost Mobile, so I can't activate it to get rid of the HFA or get the hotspot feature back. I'm sure someone here will figure it out. :)

I did do an extra step with Shortcut Master, but I don't think it is required. Its just another way to set the Network Mode to GSM/WCDMA/ when Boost Mobile actually gives us the option without leaving it out. Since it is a 'Global' Phone

Post your screenshots of some Speed Tests. Lets see what this phone is capable of.