[Quantum General] jlott069:
In case anyone was having trouble finding the info, I just thought I would put everything together and make it easy. Sorry if im re-posting anyones info, just seemed a bit spread out. Obviously anything you do is at your own risk, but if you follow it to the letter, you cant go wrong.

I can confirm all of this works.

And as far as the unlock, I didn't unlock my phone until AFTER I got NoDo. And yes, it DOES stay unlocked. Ive already tested, and obviously because of that, side-loading still works as well. You wont need the chevron unlock program anymore, plus it doesnt seem to be working well for alot of people now anyways since NoDo, but the Chevron Ringtone Manager works GREAT without that once you go through the process. Just leave out the part about the Chevron7 unlock tool.

LG "debranding" hack

1. Enable the MFG application by going to the dialer and dialing ##634# then pressing call.

2. Launch the MFG application and enter 277634#*# when prompted for a password.

3. Select the Engineer Menu item.

4. Select the Other Setting menu item.

5. Select the Edit registry menu item.

6. Set the input boxes on this menu as follows:

Select ROOT_PATH: HKEY_LOCAL_MACHINE

Input SUB_PATH: \System\Platform\DeviceTargetingInfo\

Input KEY: MobileOperator

Data Type: STRING

Input DATA: It is blank, but instead of leaving a blank, put in an empty space. As in actually hit the space key once.

Also, if you want to re-brand your phone after the update for AT&T your input should be ATT-US

7. Select Query and write down the result in case you need to re-brand for some reason.

8. To debrand just enter the same information above and leave the input data field blank. The tool will say fail but it really did set correctly.

You can now connect to Zune and check for updates.

How to Un-Lock your Phone without Chevron 7

You can unlock the phone by using the MFG registry editor.

Open the MFG app and use the password to open it. If you don't know it's (appmfg#*#)

Go to Engineer Menu -> Other Settings -> Edit Registry

Set your ROOT PATH to "HKEY_LOCAL_MACHINE"

Set your input path to "\Comm\Security\LVMod"

Set your input key to "DeveloperUnlockState" and set to DWORD

Hit Query. Output result should return a "0" or a random long number. If it does continue.

Set your input data box to "1" and hit SET. Output result should be 1

How To Keep Your Phone Unlocked

You can keep your phone unlocked and prevent Zune from re-locking it.

Open the MFG app and use the password to open it. If you don't know it's (appmfg#*#)

Go to Engineer Menu -> Other Settings -> Edit Registry

Set your ROOT PATH to "HKEY_LOCAL_MACHINE"

Set your input path to "\Software\Microsoft\DeviceReg"

Set your input key to "PortalUrlProd" and set to DWORD

Hit Query. Output result should return data. If it does continue.

Keep your input data box empty and hit SET. Output result should be 0

Keep this screen open and continue to Part 2

Part 2

Set your ROOT PATH to "HKEY_LOCAL_MACHINE"

Set your input path to "\Software\Microsoft\DeviceReg"

Set your input key to "PortalUrlInt" and set to DWORD

Hit Query. Output result should return data. If it does continue.

Keep your input data box empty and hit SET. Output result should be 0

Backout to the password screen and shutdown the phone via powerbutton.

Reboot and sync. Your phone should stay unlocked.

How to Re-Lock your Phone without Chevron 7

Don't want your phone unlocked anymore? You can re-lock the phone by using the MFG registry editor.

Open the MFG app and use the password to open it. If you don't know it's (appmfg#*#)

Go to Engineer Menu -> Other Settings -> Edit Registry

Set your ROOT PATH to "HKEY_LOCAL_MACHINE"

Set your input path to "\Comm\Security\LVMod"

Set your input key to "DeveloperUnlockState" and set to DWORD

Hit Query. Output result should return a "1". If it does continue.

Set your input data box to "0" and hit SET. Output result should be 0

Your phone is now locked. To Unlock the phone redo the above steps but set back to "1"

ChevronWP7 custom ringtone manager

http://www.chevronwp7.com/post/2054291102/chevronwp7-custom-ringtone-manager

^^^You will also find the link you need for the Windows Phone Developer Tools

Enjoy! Oh, and a quick look around XDA will give you what you need to make changes to themes and such, so have fun!