[T-Mobile LG G2x] justjackyl:
Well, It seems we are having a rash of new users obtaining used and refurbed G2x(s). A lot of these guys are jumping into rooting and flashing and as the XDA G2x community shrinks, the remaining "senior G2x members" are trying to help as much as possible. I have decided to write up this tips and install help guide so the new users have updated information. You may ask how I may be qualified to write this guide? I can say I've been on XDA shorter than the time I've owned and modded this phone. I think I've had this phone 15 months now. These are the procedures I follow to a T every time and always produce a solid and stable setup. I have flashed everything for this phone, literally, and find CM7 is the only stable choice for custom ROMs.

POST 1: INSTALLING CM7 via ClockWorkMod

POST 2: <reserved>(CM7 Setup Tips)

POST 3: <reserved>

I am writing this guide assuming a few things:

1. You are already running ClockWorkMod Recovery that was installed properly via NVFlash, NOT ROM MANAGER. If you used ROM Manager to install CWM, STOP, and follow this guide to properly flash CWM using NVFlash.

[RECOVERY][APP] 4-28 One-Click NvFlasher ClockWorkMod Touch 5.8.1.3/5.0.2.0/4.0.1.5

2. You want stability and have decided to flash CM7. This guide will always support the night-lies, although I am sure the stable CM7 release can be used in place, I have ran into troubleshooting issues that were resolved by moving them over to the updated source... night-lies! (or monthlies now? lol)

3. You will be flashing a custom kernel, meaning you will not be using the stock CM7 kernel, which sucks anyways. I will only offer support in this thread for users who have flashed Faux 054 or ANY Mazout360 (v0130 and up, OC variants only) kernel.

4. You are on the March 11, 2012 BASEBAND (LG Stock Android 2.3.4)

5. You have basic knowledge of file extensions (.zip,.apk,etc.), and have basic knowledge of how to manipulate and navigate files and file directories.

6. That you have an External MicroSD card and a MicroSD card reader for your PC.

7. That you have backed up any personal data from the phone as you will LOSE EVERYTHING on the phone.

8. Phone is fully charged and/or plugged in.

9. You are fully aware that using any ROM other than LG Stock 2.3.4, or a rooted LG stock 2.3.4 variant on the March 11, 2012 baseband WILL BREAK BLUETOOTH CALL AUDIO, MEDIA AUDIO (music, games, movies etc) WORKS 100%

That said, now for the fun stuff.

You will need the following files:

The latest CM7 release for our P999 from Cyanogenmod The latest release as of this guide: 3-1-2013

Gapps Pack (Required for Playstore etc..)

Kernel (if not using CM7 stock kernel, find in link in my signature or over in the development section.

The Fix for the March 11 2012 baseband, newbaseband.zip

So now you should have 4 files, ROM, kernel, Gapps, and newbaseband. And they should all be in .zip format. You will need to place these on the ROOT DIRECTORY of your MicroSD card.

And now we flash your new setup!

1. With your phone off, boot into CWM (I use CWM 5.0.2.0) by pressing and holding the Power & Vol - buttons until you see the second LG logo with the blue streak and release. Welcome to CWM.

2. You need to wipe the phones previous data. To do this use the Vol +/- keys to scroll up and down, and tap the power key to select options and than select:

-wipe data/factory reset

-wipe cache partition

-select advanced-->wipe dalvik cache

-GO BACK to CWM Main Menu

-select mounts and storage

-format /system

-GO BACK to CWM Main Menu

That's it for wiping.

3. Let's flash this so we can play with our new shiny toy.

-select install zip from sdcard

-choose zip from sdcard

-scroll and select your ROM from the file list

Now you will repeat this process and flash

-Custom Kernel

-newbaseband.zip

-Gapps Package

That's it! Go back to CWM Main if not already there and "reboot system now".

-First boot can take up to 10mins depending on kernel used.

-After the phone boots, LET IT SIT FOR 10MINS, DO NOT USE IT.

-Reboot

-Wait 5 mins and than proceed with inital phone setup.

-Reboot and wait 5 mins and than proceed with using the phone as you see fit.

I will be adding in some CM7 and kernel related setup tips tomorrow in post #2, as well as re-formatting post #1. It's 4:33am as of this writing, I need to go sleep!