[G4] jonnyj771:
Alright I know for alot of you it can get very difficult to decide what will happen to your Wizard if you upgrade it. I am no stranger to it either. I looked and looked and looked...I didn't want to turn my phone into a brick anymore than you do right now. it took some time and question asking. I finally decided to give you what took me a while to find. a way to upgrade your G4 only device and to unlock your phone safely. G4 is a bit more difficult to upgrade since it can brick so easily. I had a G3 as well...I didn't brick it, it got dropped and the screen broke. However, it was alot easier to upgrade than my G4 was. So Here you go. I will post the proper links to help you get your phone safely upgraded and Hard SPL (CID Unlocked) so you can flash your choice of Rom's. Use this if you have never unlocked your phone before or don't know if your phone is unlocked.

WARNING...THIS IS DESIGNED FOR G4 DEVICE WIZARDS ONLY. DO NOT ATTEMPT TO UPGRADE WITH A G3 DEVICE. I WILL NOT BE HELD RESPONSIBLE IF YOU BRICK YOUR DEVICE.

If you follow this line for line...you should not have any problems.

1. go to this link and download the Wizard Service tool.

http://xdaforums.com/showthread.php?t=329170

Install the Wizard Service tool. after you have installed it, with your phone connected to active sync, you will open the wizard service tool and click on the top button "enable rapi + unsigned apps".

now you will click on device info. it will tell you if your device is unlocked and if you have a G4 or not. IF THE WIZARD SERVICE TOOL SHOWS YOU HAVE A G3 DEVICE STOP NOW!!! PROCEEDING FURTHER CAN AND WILL CAUSE UNDO HARM TO YOUR DEVICE.

I recommend disconnecting your active sync connection, deleting your partnership, but DON'T DELETE the favorites folder. this will have your contacts in it and you will be able to retrieve any lost contacts. as well as your favorites folder with internet explorer. Reconnect your phone to usb and when you have the option to form a partnership with active sync, click "Cancel", this will put you on as a guest.

2. Now you will need to download the HardSPL package from Here

Once downloaded, open the program. make sure you have an active sync connection as "Guest". A small box will pop up with one button that says "CHECK DOC" click on that button. It will check your phone again, once it realizes it is a G4 Phone, it will proceed to install a Soft SPL so it can complete a Hard SPL upgrade. (follow the prompts. There will be a DOS based page that will pop up. and as long as your screen turns white on your device, you are ok.) this will take approximately 1 minute. Your phone will automatically reset when it does, your ipl will say 2.21.001 and your spl will say 2.21.Olip. as long as it says that, your phone is CID unlocked.

NOTICE: DO NOT ATTEMPT TO UPGRADE YOUR PHONE'S IPL/SPL TO ANY OTHER THAN THE ABOVE. IT CAN AND WILL DO UNDO HARM TO YOUR DEVICE.

Now for upgrading your Radio. I will give two links to radio's to upgrade with. These Radio's are decent radios and do not have the IPL/SPL with them so they are safe to upgrade to. I will also link a Rom Upgrade Utility (RUU) so you can upgrade the Radio's Safely.

Radio 3.02.11: Link (known to drain Battery Life. You Be the Judge of that)

Radio 2.69.11: Link

RUU: Link This Utility does NOT have ipl/spl just copy your radio Nk.nbf to this RUU and flash.

I hope this will Help you to upgrade your G4 Device. If you have any questions feel free to ask. I will attempt to answer them to the best of my ability.

Thanks to those that have already had alot of this around the forums:

Double_ofour

Cracing

Vippie: for the tutorial on upgrading the wizard.

and to those that set up links to download the roms and radios that are not mentioned.