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SPL
How To: SPLs for Dream.
================================================================================= PROCEED WITH CAUTION About SPLsThis page contains information about SPLs for the HTC Dream (aka T-Mobile G1 and ADP1). What is a SPL? The SPL, or Second Program Loader, in conjunction with the IPL comprise a device's bootloader. Aside from bootstrapping Android, the bootloader also fulfills various diagnostic functions. One of these functions is the manipulation of data in the device's internal flash ram. Depending on the SPL installed, the user can apply a signed NBH file, flash nand images, and more. Note that the SPL is installed and operates independently of the Android build that runs atop it. Currently there are three SPLs available. The G1 variant is the SPL that is installed in stock T-Mobile G1 phones. The Engineering variant is found in the Android Dev Phone 1. Finally, the HardSPL is a modification of the Engineering variant by cmonex, with additional hacker-friendly functionality. HardSPL is the recommended SPL. InstallationThe SPLs are packaged in the familiar update.zip format and install from the recovery console in the same fashion as other update files:
HardSPL (recommended)VER: HSPL10.95.3000 HardSPL is a modification of the Engineering SPL by cmonex. In addition to the functionality of the Engineering SPL, HardSPL also allows NBH files to be used without matching the CID (carrier ID) check. At the current time the main benefit of this is to allow European G1s flash American NBH files and vice versa. All other features and attributes of the Engineering SPL (such as the ability to flash the mtds from nand backup images) are present. Using the Nandroid backup scripts to create nand backups for this purpose is recommended. Engineering SPLVER: HBOOT-0.95.3000 The Engineering SPL is a custom SPL installed in devices intended for Android development. It has existed since before the launch of the G1 and is now available to the general public as preinstalled on the Android Dev Phone 1, the official development device sold by Brightstar Corp. This SPL, in addition to flashing signed NBH files, can also flash nand dumps through the use of the fastboot protocol (as defined in the legacy bootloader documentation). This is a convenient way to flash the mtd partitions and can be greatly useful in the event that an undesirable build of Android is advertently or inadvertently installed. This SPL was first originally dumped from a G1 which dream_kill received as a replacement from T-Mobile by cmonex and JesusFreke. The file was released by Disconnect on his webpage. G1 Original SPLVER: HBOOT-0.95.0000 This is the original SPL which is installed in a stock G1. It is easily distinguished by the "trademark" red-green-blue bootloader screen which appears in many HTC phones. This SPL does not support the fastboot protocol and thus will not allow the user to flash nand backup images. Before the leak of the TC4-RC29 and TC5-RC7 signed NBH images, users running stock RC30 and RC8 were unable to downgrade and install modified Android builds. On January 1st, 2008, xda-dev user chavonbravo leaked the aforementioned files, which allowed users to downgrade G1s through the original SPL. This SPL was dumped by damien667. |
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I have tried to apply the HARD Spl but Ihave just bricked my new HTC Magic. I have downloaded the HARD Spl from the links in this page. Is there any chance to recover it? it is completely dead.
Remove MAGIC from the heading, it is better. Since the SPLs here are for G1, I guess.
Same here... not with this spl but similar I bricked my Magic... any advice besides get a new one ;)
grtz
These SPL's are for the G1, the Magic is a different beast in regards to the SPL. Are you guys on the T-Mobile Magic? Also which SPL version did you have? i.e. 1.33.0006 or 1.33.0010?
Is there any way to see which SPL and PPL I am running? I had an adventure with my phone when I found out JF stopped. I tried to go from JF to CyanogenMod? - 4.1.11.1 This at the time was not a common problem on the forums so I decided to wing it. I now know that I had no need to go back to RC29 in order to change to Cyan4.1.1.
Is there a resource that you know of that will allow me to view the compatibility of overall phone stuff?
It is on and running now. Earlier today my phone died and when I powered back on I got the G1 Original SPL tri color screen with the Serial0 line across the middle. Every now and then when I refresh it it would flash to a white screen and you could see for a SECOND "No image file" and it would revert back to the tri color screen with serial0 on it.
Okay. Battery out Home+Back takes me to my CyanogenRecovery? and I start wiping and Installing Any Zip on SD. Nothing was getting my phone off of SPL. Eventually I pressed my Camera+Power+Back after hooking it up via USB to my PC. It turned on and loaded Cyan amazing ROM. I was flabbergasted and I do not think that would ever work again.
I am not turning my phone off untill I think this through. Lol. I am not sure if It will load correctly or (I am 75% sure it will) go back to the SPL screen from H*ll.
I know Cyan is redoing everything ATM. I love the ROM and want to stick with it untill he dishes out barebone 4.1whatever. Maybe I should run Hero with HardSPL? I am a noob with a vocabulary so I apologize if my post is confusing, but I am so confused.
Here is all of the info that I know about my phone: Model#: Tmobile G1 Firmware Version: 1.6 Baseband Version: 62.50s.2017u_2.22.19.261 Kernel Version: 2.6.29.6-CM41 Modversion: CyanogenMod?-4.1.11.1 Build #: DRC63 cm-recovery-1.4 And apparently I have the HBOOT-0.95.0000
Please help. I have been working at this for about a week now and I really need a experts opinion. Thank you!!!!!! Oh... By the way... Brick is when your phone is so fried that it wont turn on right?
i put the update.zip in my sd card then go to the menu to load it. whatever its calle, i forgot. but it says it fails to open it because its not authorized or something. im using the original G1 SPL
Hi pookeysi,
Similar problems. I get "No Image File!" everytime on boot. Unsure why and tried everything. To get around the problem I flashed boot.img to recovery partition and I can boot normally while holding the home button.
Total pain!
So I wonder if there is a max number of times you can flash a new rom? I was not having any issues until just a few days ago when I decided to try out a 2.0. Everything flashed and booted up but when I decided to go back to my other rom my G1 decided it wouldn't boot past the "android" logo. Anyways after a full day of messing around with it I finally was able to flash the rom again, but only after going completely stock and then re-rooting. After I re-rooted and flashed the rom I tried flash an update to it and ended up with the same problem, a blank, back-lit screen after the "android" logo...so now I'm back to stock roms. It doesn't do me a whole lot of good as a paperweight LOL. I did narrow it down to having trouble after updating the SPL.