[ROM] Problema al montar rom oficial htc desire 820

[fj_moreno]

Hola, buenos dias resulta que hice root a mi htc desire 820 y sin querer he borrado todo el os de la memoria interna. He descargado la rom de mi movil en http://www.htcdev.com/devcenter/downloads y he descargado el kernel de orange españa ahora tengo dos archivos que vienen dos carpetas una con el nombre 158_kernel_a51ul-3.10.28-gfb4641a_release.tar
y otra con el nombre platform.zip alguien que me guie porfavor no tengo ni idea como se utilizan esos archivos

en las instrucciones me pone esto:

defconfig file: a51dtul_defconfig (arm-eabi-4.7)

Download:
=========
If you are not already using an AOSP toolchain (included in an AOSP build tree), download the corresponding official android toolchain for the arm-eabi specified above for this device:

git clone https://android.googlesource.com/platform/prebuilt for 4.4.3
git clone https://android.googlesource.com/pla...m/arm-eabi-4.6 for 4.6
git clone https://android.googlesource.com/pla...m/arm-eabi-4.7 for 4.7
(use darwin-x86 in place of linux-x86 for mac)

Build the kernel:
=================
set the following environment variables:

export TOP= [where you installed the toolchain or top of android AOSP code base]
export PATH=$TOP/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin:$PATH (use corresponding arm-eabi bin path)
export ARCH=arm
export SUBARCH=arm
export CROSS_COMPILE=arm-eabi-

make [the defconfig file for this device above]
make clean (for subsequent builds)
make -j4 (in this example 4 is the number of processors of your build machine)

Output Binary Files:
====================
After the build process is finished, there should be a file named "zImage" found in arch/arm/boot
If you are building a rom with this kernel ZImage, copy it into your build's output folder and rename it to "kernel".

You will also need the following kernel modules. These will eventually be installed into /system/lib/modules on the device.

kernel modules:
./driver/*.ko

If you have already built and installed a boot.img with root access you can also install the modules directly into the device using "adb remount" and "apb push [file] system/lib/modules/" for each file listed above. After installing files set permissions with "adb shell chmod 0644 system/lib/modules/*" and "adb reboot"

For additional information:
===========================
http://htcdev.com

si alguien me ayudara a guiarme un poco se lo agradeceria