【小轩课堂】什么是SPL与非SPL的区别.docVIP

【小轩课堂】什么是SPL？与非SPL的区别 SPL, 课堂 本帖最后由 hennessy 于 2009-11-10 22:20 编辑 SPL，Second Program Loader，实际就是android的bootloader，用来引导系统的，（和pc的BIOS有点类似。）除了用来加载android 系统外，它还有其他的一些功能，包括恢复模式，Fastboot（刷系统），HBoot（？？？）。最终SPL就是用来读写flash rom的。除此之外，SPL还会检查要刷的数据文件是否正确。当前大多数SPL，可以让我们刷写完整的系统rom，但是无法刷写recovery rom和boot image，因为spl会检查recovery 和boot img的签名。不过有高人（Haykuro）修改了SPL，移除check功能，这就是Engineering SPL，SPL如此重要，在刷SPL时，要加倍小心。因为一旦刷坏了SPL，没有专门的设备和技术，是无法恢复spl的。--------------------------------所以论坛里说的，spl和非spl 是不明确的，其实大家所说的刷spl是刷修改过的spl---------------------------原文： So what is an SPL anyway? What does it do?The SPL, or Second Program Loader, is essentially the Android bootloader. Its job is more than just loading the Android OS - it also offers several other boot options, including Recovery mode, Fastboot, and HBOOT modes, and ultimately its the SPL that allows manipulation of the flash nand on your device. Part of the SPLs job is to ensure that the data flashed to the device is correct. Most of the current shipping SPLs (apart from the Perfect SPLs) let us flash a complete ROM image, but dont let us flash a recovery rom or boot image as it checks the verification signature. Haykuro has modified the SPLs available to remove this check and this is what the Engineering SPLs available offer. As the SPL is so crucial to the handset though, you have to be very careful when flashing it as if its updated incorrectly then you may be incapable of restoring it without specialised hardware and knowledge. You essentially have a very expensive brick ;)from：/i ... TC_Sapphire_Hacking 是国外比较著名的HTC手机论坛，英文好的，可以在这个论坛和他的wiki 淘到好的东西，这里是Original SPL list : （from：/showthread.php?t=529019 ）Please update us on any new SPLs so we can include them in this list. - HBOOT-1.33.0004 (SAPP10000) : Sapphire PVT 32B SHIP S-ON G : CPLD-10 (Voldafone NL + UK + Australia)- HBOOT-1.33.0008 (SAPP10000) : Sapphire PVT 32A SHIP S-ON H : CPLD-12 (TIM (Italian))- HBOOT-1.3300.0009 (SAPP10000) : Sapphire PVT 32A SHIP