Hey guys, ok so I am running the Ion rom on my G1 and am very familiar with flashing but sometimes lingo gets me all confused. When you flash the new SPL required for the Rogers or Hero Rom is it just throwing the file on your SD card and naming it update.zip? What does it even do? Should I just do it and call it good just in case I want to try Hero or Rogers? Or do i have to Alt w or reload the rom I am using. Thanks guys. EDIT: Ok So I decided I would do a small tutorial to help you who want to flash the new SPL Please do this at your own risk -First off Power off your phone. -When you power it back on hold the Camera+power -You need to confirm you have the PVT board if you have DVT then YOU WILL BRICK YOUR PHONE so PVT=Safe DVT=Brick Once you have confirmed this, pull your battery out, replace it, and turn on the device and FOLLOW THE INSTRUCTIONS PROVIDED BY Matt_tang BELOW -Next You will want to have either: - 2 micro SD cards or 1 micro SD card, a micro SD card adapter and a card reader for your computer. -Download the latest Radio and SPL from this site http://code.google.com/p/sapphire-port-dream/ -Download the update file of the current build you are using Do not try to flash the older radio back after you flash this SPL or you WILL BRICK YOUR PHONE The following is the steps I followed: Courtesy of Matt_tang over at XDA. Matt_tang nor myself will not be held responsible for any bricked phones. He believes, as do I, that providing you have a PVT board then you will be successful in following these steps. IF YOU HAVE TWO MICRO SD CARDS: 1. Download the SPL 2. Upload the new SPL on one microSD card and name it "update.zip" and upload the update file of the build that you are currently using on the other microSD card and name it "update.zip" 3. Put the microSD with the SPL update in your phone and reboot to recovery mode. 4. THIS IS IMPORTANT (perform a nandroid backup, of course) Apply the update, and once complete DON'T DO ANYTHING.. read step 5. 5. WITHOUT PRESSING ANY BUTTONS remove your microSD card from your phone and place the other microSD card in it. 6. Press Alt + x to go to the console. If your phone does not reboot automatically, type reboot recovery, then press enter. 7. If you boot up in recovery, you have done everything correctly. Now apply the update, reboot, and you're done. IF YOU HAVE ONE SD CARD: 1. Upload new SPL on your microSD and rename to "update.zip" 2. Reboot your phone into recovery mode. 3. THIS IS IMPORTANT (perform a nandroid backup, of course) Apply the update, and once complete DON'T DO ANYTHING.. read step 4. 4. WITHOUT PRESSING ANY BUTTONS remove your microSD card from your phone, and plug it into your microSD card adapter/SD card reader 5. Remove/rename the SPL update (to something other than "update.zip") and upload the update file of the build you are currently using onto your microSD card. Put your microSD card back in your phone AGAIN WITHOUT PUSHING ANY BUTTONS 6. Press Alt + x to go to the console. If your phone does not reboot automatically, press enter, type "reboot recovery", then press enter again. 7. If you boot up in recovery, you have done everything correctly. Now apply the update, reboot, and you're done.