[Sprint LG Optimus G] engine95:
[SIZE=+3]Frequently Asked Questions[/SIZE]

[SIZE=+2]Sprint LG Optimus G[/SIZE]​

[SIZE=+1]This a list of frequently asked questions in this device forum and the answers often given as a response. It should serve as a starting point for gathering knowledge and finding solutions to many common problems. Please only post in this thread with feedback on how to improve this document. Do not post "Thank you" type responses. If you have additional questions or require more help, try to find an existing thread or create your own. Do not use this as a general help thread.[/SIZE]

[SIZE=+1]Q1: How to Root and Unlock bootloader.[/SIZE]

There is a Guide​

[SIZE=+1]Q2: FreeGee, Unlocking, Bootloader, Freezing, Stuck on LG/4GLTE screen problems?[/SIZE]

If FreeGee for some reason doesn't work, and/or softbricks, you have three options:

1. Use the "mako" unlock. This is now the preferred method. Mako unlock will show a "Google" logo on bootup. The other unlock shows the LG logo, but has potential to softbrick.

2. If you have LGNPST you can use teeny bins

Need info on LGNPST or need it? Here In "Additional Section".

Or in the irc. Here

3. LGFlashTool - Unbricking and Firmware flashing

This is a new option. (Repair Center Thorough) It seems to only work if your bootloader is locked. (It will show **971 which is not our model)

If you're stuck at the "4GLTE" screen: To get to stock recovery - Power off phone. You need to hold power button for about 20 sec to get it to turn off. Then press and hold vol down+power - The LG logo will come on, then the capacitive lights. Immediately let go when the capacitive lights turn on. It takes a few seconds to work. Data wipe/Factory reset. Reboot.

If you're stuck at the "LG" screen, Or the LG screen flashes, then goes black:

Make sure you are powering off the phone by pressing and holding the "Power" button for at least 20+ seconds, then release.

Press vol up+power should get you into Fastboot.

And if you happen to reboot into STOCK recovery and the power button will not select, use the "menu" button on the capacitive lights (far right when holding it) to get it to accept your commands.

LGNPST does not like USB 3.0 ports. Use USB 2.0 ports.

If you can get into download mode, use LGNPST. Use the ZVB/ZVC bin file.

If you can get into recovery, flash a ROM

You might have to do a battery pull

You will need a Torx T4 for the bottom screws, and a 00 Philips for the battery connector. Just be very delicate, especially when disconnecting the terminal.

If you get the Secure booting error. You have no recovery installed. Or you removed apps without being unlocked. You'll need to use LGNPST to fix it.

You can also go Here for more help. ie ADB Sideload

If all else fails, go to the IRC.

Join us on IRC #lg-optimus-g on Freenode!

Server: irc.freenode.net

Channel: #lg-optimus-g http://webchat.freenode.net[/SIZE]​

[SIZE=+1]Q3: If your battery is dead, stuck in a bootloop, and won't boot unless on a charger.

Plug your phone in for a couple hours with a wall charger. If it stays off, great. If not, press and hold the power button for 20+ sec. That will turn it off. Plugged or plugged in, not sure which. Try both.

After a couple hours take it off the charger and boot into recovery. Vol down+ power release when capacitive lights come on. This should get you into "Stock" recovery. Which is what you should have if unrooted.

Then use power button to go down, and "factory reset". Use the capacitive menu key, far right key, to activate the reset. It should boot up. If not, turn it off 20+sec and charge it a couple more hours. Unplug it, then turn it on.​

[SIZE=+1]Q4: Lack of memory/SD space?[/SIZE]

On stock based ROM's, delete "logcat" in internal SD.

On CM based ROM's, look in /mnt/shell/emulated/0 for "logcat" and delete.​

[Size=+1]Q5: "0" folder showing up on SD? "TWRP does not see files"[/Size]

If going between CM Roms and Stock roms, keep both. Copy root to "0" folder. Easiest way​

[Size=+1]Q6: Brightness won't increase? Or says too hot?[/Size]

Problem with LG. Deal with it. ;)

Here's some info on it.​

[Size=+1]Q7: Demigod crash/Kernel crash?[/Size]

Reboot, all is well. LG Problem.

Here's some info on it.​

[Size=+1]Q8: Stock Wifi tethering apps.[/Size]

With ZVB and ZVC Stock it'll only work 1 per reboot. Meaning either Wifi, OR Wifi tether per reboot. Sometimes it'll require 2 reboots as Wifi will turn itself on two times. Check this before using Wifi tether.

I use "Wireless Tether for Root Users".

Settings are: Generic ICS/JB (Wlan0), Wifi encryption checked. No other settings changed.

There is also a TrevEmod version in these forums. I don't know those setting for sure.​

[Size=+1]Q9: CM and AOSP issues.[/Size]

4.4 To install KK Roms, you will need the modded TWRP or CWM recoveries. Those can be found Here

To restore any nandroid ROM backups, you need to use the recovery the backup was made with. ( If you backed up using 2.5.0.0 then restore with it. If you're using the KK 2.6.3.0, it will not restore a 2.5.0.0 backup.

4.2 has Camera issues. Read in the thread you are using for the fix.

4.3 has the Camera fixed.​

[Size=+1]Q10: When using JB, Stockish or CM based ROM's, you MUST use the ZVB/ZVC radio/modem.[/Size]

In stock it's 1690. In CM its 10646

Here

Here​

[Size=+1]Q11: I've lost EFS/data/phone service[/Size]

Hopefully you'll be able to fix it by updating Profile/PRL. Settings>System Updates

To update profile/PRL you need to be on a stock ROM. So if you are running a CM based ROM, You will need to Flash/Restore a Stock based ROM, update profile/PRL, then go back to your CM ROM that you backed up in TWRP. Hopefully.

If you've lost your EFS, then you better hope you've backed it up in TWRP, Freegee, or autoprimes-Create flashable zip for EFS. Which is this file

If you didn't heed all the warnings posted all over, then you'll need to go Here for starters. This has all the information to help you, but be warned that it can be a complex fix.​

[Size=+1]Q12: Can't get GPS lock on CM based ROM's[/Size]

For this, you will need to go back to Stock Based ROM also

If you are running a CM based ROM: Flash/Restore a Stock based ROM, get a GPS lock, then restore, or flash back to CM ROM.

Another new option is to Flash/restore your EFS. Seems to be working well. Here​

[Size=+1]Q13: How to force getting ZVC update notice / Disable update nag screen. How to Manually update to ZVC[/Size]

Force Update - Go to Settings>Apps>All>Google services framework - clear data. Then go to Settings>System Updates - and update profile/Prl, Update LG Software.

Disable nag screen - Edit the build.prop - theres 3 or 4 references to ZVB. Change them to ZVC

To manually update to ZVC. Here

A new way to update. Uses Update.zip Here​

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