Android Q

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 [...]

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. [...]

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. Use this SPL to restore your phone [...]

About SPLs
This post contains information and downloads for 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 [...]