Acer Iconia B1-A71 (MT8317 / MT6577)

Use this repository to compile TWRP from source.

• Used TWPR branch: twrp-4.4
• Resulting TWRP version: 3.1.1

Compatibility

This device tree should also work for Acer Iconia B1-710 and Lenovo IdeaTab A1000 with either minor or no changes at all.

Building

Tools needed: repo and some cross-compiling toolchain. Linaro v7.5.0 works great.

1. Get the TWRP source code

repo init -u https://github.com/minimal-manifest-twrp/platform_manifest_twrp_omni -b twrp-4.4 --depth 1

If this command fails due to some unspecified credentials error, you can bypass it by executing:

cd .repo/manifests && git config user.name 'test' && git config user.email 'test@ema.il' && cd ../..

and then running repo init thing from above again.

2. Get the device tree

mkdir -p device/acer/giordano
git clone https://github.com/arzam16/android_device_acer_giordano device/acer/giordano

3. Build it!

. build/envsetup.sh
lunch omni_giordano-userdebug
make recoveryimage

Feel free to specify -jTHREADS option in make command to speed up compilation. lunch command yields some dependency warning, but it still builds fine. The recovery image for flashing will be located at out/target/product/giordano/recovery.img

Notes on kernel

This device tree uses prebuilt kernel which could be easily reproduced:

• Source code: https://github.com/arzam16/mt6577_kernel_Acer_B1_A71
• Commit: 67a47ce448ed2dad6004f1d5244d5fc26a0907ef
• Config: prebuilt/kernel.config