Compile Android7.1 Industry firmware Download compilation instructions: Android7.1 industry version it is more widely used in industry and tablet and box fields, and has been verified for stable performance in mass production. This version also serves as our main maintenance version and is applicable to all models of our RK3399 system. Compile Android7.1 industry firmware Download Android SDK The Android SDK source package is relatively large, you can go to the download page to get the Android7.1 source package: Android7.1 industry SDK After downloading, verify the MD5 code: $md5sum ~/firefly_rk3399_industry7.1_git_20211216.7z.001 $md5sum ~/firefly_rk3399_industry7.1_git_20211216.7z.002 $md5sum ~/firefly_rk3399_industry7.1_git_20211216.7z.003 $md5sum ~/firefly_rk3399_industry7.1_git_20211216.7z.004 3387ebaa3d8e43dd1164527d4054621b firefly_rk3399_industry7.1_git_20211216.7z.001 a74bb71622add3d2b558dc5a0bfb51e4 firefly_rk3399_industry7.1_git_20211216.7z.002 00f3202d42559e02cefc5300e48e1690 firefly_rk3399_industry7.1_git_20211216.7z.003 fb64756ff7e24d9bb76ecd4678afb55f firefly_rk3399_industry7.1_git_20211216.7z.004 After confirming that it is correct, you can unzip: mkdir -p ~/proj/firefly-rk3399-Industry cd ~/proj/firefly-rk3399-Industry 7z x ~/firefly_rk3399_industry7.1_git_20211216.7z.001 -r -o. git reset --hard Note: Be sure to update the remote warehouse after decompression. The following is how to update from gitlab: 1. Enter the SDK root directory cd ~/proj/firefly-rk3399-Industry 2. Download remote bundle repository git clone https://gitlab.com/TeeFirefly/rk3399-industry-nougat-bundle.git .bundle 3. If the download warehouse fails, the current bundle warehouse is about 1.4G, so there may be stuck or failed problems during synchronization. You can download and unzip it from the Baidu cloud link below to the SDK root directory. 7z x rk3399-industry-nougat-bundle.7z -r -o. && mv rk3399-industry-nougat-bundle/ .bundle/ 4. Update the SDK, and subsequent updates do not need to pull the remote warehouse again, just execute the following command .bundle/update 5. Follow the prompts to update the content to FETCH_HEAD, synchronize FETCH_HEAD to the firefly branch git rebase FETCH_HEAD Google Driver [bundle download] Core-3399-JD4 industry version product compilation method Overall Compilation Public Compile HDMI ./FFTools/make.sh -d rk3399-firefly-aiojd4 -j8 -l rk3399_firefly_aiojd4-userdebug ./FFTools/mkupdate/mkupdate.sh -l rk3399_firefly_aiojd4-userdebug Display DM-M10R800 Compile LVDS+HDMI ./FFTools/make.sh -d rk3399-firefly-aiojd4-lvds-HSX101H40C -j8 -l rk3399_firefly_aiojd4_lvds-userdebug ./FFTools/mkupdate/mkupdate.sh -l rk3399_firefly_aiojd4_lvds-userdebug Dual Camera SV-TAYSH-TQ Compile HDMI+SV-TAYSH-TQ Modify device/rockchip/rk3399/rk3399_firefly_aiojd4.mk BOARD_NFC_SUPPORT := false BOARD_HAS_GPS := false +BOARD_XC7022_XC6130_SUPPORT := true #for 3G/4G modem dongle support BOARD_HAVE_DONGLE := false Compile ./FFTools/make.sh -d rk3399-firefly-aiojd4 -j8 -l rk3399_firefly_aiojd4-userdebug ./FFTools/mkupdate/mkupdate.sh -l rk3399_firefly_aiojd4-userdebug Compile step by step Core-3399-JD4 Before compiling, execute the following command to configure environment variables: export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 export PATH=$JAVA_HOME/bin:$PATH export CLASSPATH=.:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar Compile kernel: cd ~/proj/Core-3399-JD4/kernel/ make ARCH=arm64 firefly_defconfig make -j8 ARCH=arm64 rk3399-firefly-aiojd4.img Compile uboot: cd ~/proj/Core-3399-JD4/u-boot/ make rk3399_defconfig make ARCHV=aarch64 -j8 Compile Android: cd ~/proj/Core-3399-JD4/ source build/envsetup.sh lunch rk3399_firefly_aiojd4-userdebug make -j8 ./mkimage.sh Packaged into unified firmware After compilation, you can use Firefly official scripts to package into unified firmware, execute the following command： ./FFTools/mkupdate/mkupdate.sh -l rk3399_firefly_aiojd4-userdebug According to different -l XXX-userdebug parameters, the packaged unified firmware will be stored in different directories (rockdev /image-XXX/): product name XXX_XXX_date XXX.img It is also very simple to package the unified firmware update.img under Windows. Copy the generated files to the rockdev \ Image directory of AndroidTool, and then run the mkupdate.bat batch file under the rockdev directory to create update.img and store it in rockdev \ Image directory. Flash partition image When compiling, executing ./mkimage.sh will repackage boot.img and system.img, and copy other related image files to the directory rockdev / Image-rk3399_firefly /. The following lists the image files used by general firmware: boot.img ：The initial file image of Android is responsible for initializing and loading the system partition. kernel.img ：Kernel image. misc.img ：misc partition image, responsible for starting mode switching and parameter transfer of emergency mode. parameter.txt ：emmc partition information recovery.img ：First aid mode image。 resource.img ：The resource image contains the boot tree and the device tree information of the kernel. system.img ：Android system partition image, ext4 file system format. trust.img ：Hibernation and wake-up related files rk3399_loader_v1.08.106.bin ：Loader file uboot.img ：uboot file Please refer to Upgrade the firmware article to program partition image file. If you are using a Windows system, copy the above image file to the rockdev \ Image directory of the AndroidTool (firmware upgrade tool under Windows), and then refer to the upgrade document to burn the partition image. This has the advantage of using the default configuration. No need to modify the file path. update.img facilitates the release of firmware for end users to upgrade the system. It is more convenient to use partition images in general development. note: When using the upgrade tool to upgrade the industry version of the firmware, if the original tvbox version of the firmware is burned, you need to short-circuit emmc or flash erase first. And pay attention to use the matching upgrade tool Please refer to Instructions for writing with USB cable (important) Other Android versions Main maintenance: "Compile Android7.1 Industry firmware" Support but not maintain: "Compile Android7.1 firmware"