I was a HTC HD2 user before. And probably you already know, it has 2 super Second BootLoader's (SBL) which are based on Windows CE kernel and can run Android kernel and Windows Phone 7 efi.
At the moment, we (Nokia X2 users) have several stock and CM11 based roms, maybe we will have a CM12 rom too. So I enhanced TWRP recovery and created a MultiBootloader kernel which boots up to 2 kernel (unlimited theorytically) and already has a fully working TWRP 2.8.7.0.4 recovery features.
With this tool, we can use multiple roms (a nand and a sd-ext based) roms sim simulatansly. We can select which rom to use at start up process.
Also I created a little flasher for it. You should run installer.bat to install this bootloader to your phone. Although you can remove it via runing revert.bat file from your PC. For now it only supports CM11. So if you use stock or stock based rom, you should manually change boot image with yours.
When you installed it to your phone, it replaces your kernel (boot partition). So when you boot up to device, it will ask to which kernel is executed. So you should copy your 1st roms boot.img to Internal Memory Card/TWRP/1.img and External Memory Card/TWRP/1.img. Also you can copy (if you have a second kernel ) boot.img to Internal Memory Card/TWRP/2.img and External Memory Card/TWRP/2.img. When you select a kernel, MultiBootloader flashes it to recovery partition and immediatly reboot to recovery to execute kernel.
For now, we have only nand roms for our device. So we need sd-ext based roms to use multiple roms. For sd-ext based roms we need:
- a 4ext partitioned sd card
- modified boot image which mounts system, custom and data partitions to 4ext partition via init.rc
- new flashable zip script which flash rom to 4ext partition.
All these have made before for HTC HD2. So we can make it easily. But I have no time for it. (I am a lawyer on my real life and I am very busy) So we need @y-bee4pda @SonnySimon @MasterYus helps. I hope they can.
Download MultiBootloader v1.00: https://yadi.sk/d/-mpnWr9OjVrwS
At the moment, we (Nokia X2 users) have several stock and CM11 based roms, maybe we will have a CM12 rom too. So I enhanced TWRP recovery and created a MultiBootloader kernel which boots up to 2 kernel (unlimited theorytically) and already has a fully working TWRP 2.8.7.0.4 recovery features.
With this tool, we can use multiple roms (a nand and a sd-ext based) roms sim simulatansly. We can select which rom to use at start up process.
Also I created a little flasher for it. You should run installer.bat to install this bootloader to your phone. Although you can remove it via runing revert.bat file from your PC. For now it only supports CM11. So if you use stock or stock based rom, you should manually change boot image with yours.
When you installed it to your phone, it replaces your kernel (boot partition). So when you boot up to device, it will ask to which kernel is executed. So you should copy your 1st roms boot.img to Internal Memory Card/TWRP/1.img and External Memory Card/TWRP/1.img. Also you can copy (if you have a second kernel ) boot.img to Internal Memory Card/TWRP/2.img and External Memory Card/TWRP/2.img. When you select a kernel, MultiBootloader flashes it to recovery partition and immediatly reboot to recovery to execute kernel.
For now, we have only nand roms for our device. So we need sd-ext based roms to use multiple roms. For sd-ext based roms we need:
- a 4ext partitioned sd card
- modified boot image which mounts system, custom and data partitions to 4ext partition via init.rc
- new flashable zip script which flash rom to 4ext partition.
All these have made before for HTC HD2. So we can make it easily. But I have no time for it. (I am a lawyer on my real life and I am very busy) So we need @y-bee4pda @SonnySimon @MasterYus helps. I hope they can.
Download MultiBootloader v1.00: https://yadi.sk/d/-mpnWr9OjVrwS
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