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Some of device here has merged.So archive

lk2nd

lk2nd is a bootloader for Qualcomm MSM devices, based on the CodeAurora Little Kernel fork. It provides an Android Fastboot interface on devices where the stock bootloader does not provide Fastboot (e.g. Samsung).

lk2nd does not replace the stock bootloader. It is packaged into an Android boot image and then loaded by the stock bootloader as a "secondary" bootloader. The real Android boot image is placed into the boot partition with 1 MB offset, and then loaded by lk2nd.

Supported SoC

  • MSM8953(sdm625,sdm450)
  • Other Socs is on other branch

Supported devices

huawei devices

  • the Plus mode is same as the gernic mode (e.g. MLA-AL10 is same as MLA-AL00)
  • Huawei CAN-AL00
  • Huawei CAN-L01
  • Huawei CAN-L02
  • Huawei CAN-L03
  • Huawei CAN-TL00
  • Huawei MLA-AL00
  • Huawei MLA-L01
  • Huawei MLA-L02
  • Huawei MLA-L03
  • Huawei MLA-TL00
    havent test:
  • Huawei MLA-UL00 (Maybe cannot use because I cannot find the device-tree)
  • Huawei DUB-AL00
  • Huawei DUB-AL10
  • Huawei DUB-AL20
  • Huawei DUB-LX1
  • Huawei DUB-LX2
  • Huawei DUB-LX3
  • Huawei DUB-TL10
  • Huawei DUB-TL20
  • Other huawei msm8953 device can try to use this projcet,if it cannot boot,please tell me at Issues with your msm-id and board-id (in the '/proc/device-tree' )

xiaomi devices

  • Xiaomi MAX2
  • Xiaomi A2 Lite
  • Xiaomi A1
  • Redmi note 5
  • Redmi note 4 prime(markw)

Meizu devices

  • Meizu M6 Note

Lenovo devices

  • Lenovo P2(havent test)

OPPO devices

  • OPPO R9S (havent test)

Installation

  1. unlock the bootloader
  2. Download lk2nd.img (as of now there's no build available so you'll need to build it yourself.)
  3. Flash lk2nd.img using the stock flashing procedure:
  • Fastboot: fastboot flash boot lk2nd.img

Usage

lk2nd provides the standard Android fastboot protocol for flashing/booting Android boot images.

Press Volume Down while booting to enter Fastboot mode. Press Volume Up while booting to boot into Recovery mode.

Note: If your stock bootloader uses the same key combinations, you need to wait a bit before pressing the volume keys. Usually, waiting until the screen turns on and/or the device vibrates should be enough to make the stock bootloader ignore the keys.

fastboot flash lk2nd lk2nd.img can be used to update lk2nd directory from its fastboot interface.

Note: fastboot flash boot boot.img will flash the actual boot image with 1 MB offset into the boot partition. This is done to avoid replacing lk2nd (since it is also booted from the boot partition).

Other fastboot commands work normally.

Building

 make TOOLCHAIN_PREFIX=arm-none-eabi- msm8953-secondary

do not use aarch64(arm64) toolchain to build it.

donation

PayPal: https://www.paypal.me/QemuAndroid donation
requests:

  • ARM (32 bit) GCC tool chain
    • Arch Linux: arm-none-eabi-gcc
    • Alpine Linux and postmarketOS: gcc-arm-none-eabi
    • Debian and Ubuntu: gcc-arm-none-eabi
    • Fedora: arm-none-eabi-gcc-cs
  • Device Tree Compiler
    • Arch Linux: dtc
    • Alpine Linux and postmarketOS: dtc
    • Debian and Ubuntu: device-tree-compiler
    • Fedora: dtc
  • libfdt
    • Alpine Linux and postmarketOS: dtc-dev
    • Debian and Ubuntu: libfdt-dev
    • Fedora: libfdt-devel
  • GNU tar
    • Alpine Linux and postmarketOS: tar

Replace TOOLCHAIN_PREFIX with the path to your tool chain. lk2nd.img is built and placed into build-msm8953-secondary/lk2nd.img.