Allwinner H616 Custom Rom Upd 2021 Guide

| Component | Source | |-----------|--------| | U-Boot | u-boot-sunxi (H616 support since v2021.01) | | Linux kernel | linux-sunxi (branch: sunxi-4.9.y ) or mainline (5.15+) | | Android 10 TV | Allwinner’s lichee + android_vendor (restricted) | | Armbian | armbian/build (select H616) |

git clone -b sunxi-4.9.y https://github.com/linux-sunxi/linux-sunxi cd linux-sunxi export ARCH=arm64 export CROSS_COMPILE=aarch64-linux-gnu- make sun50iw9p1_defconfig # H616 codename make -j$(nproc) Image dtbs modules allwinner h616 custom rom upd

| Problem | Solution | |---------|----------| | Boot loop after flashing | Check DTB compatibility; use stock DTB as base | | No HDMI output | H616 requires special HDMI PHY init in U-Boot; enable CONFIG_VIDEO_SUNXI | | USB not working | Mainline kernel needs sun50i-h616-usb-phy driver; backport from 5.15+ | | DRAM size wrong | Adjust CONFIG_DRAM_CLK and CONFIG_DRAM_ZQ in U-Boot | | Wi-Fi/BT chip (e.g., RTL8822CS) | Requires vendor firmware blob + rtl_bt kernel module | | Component | Source | |-----------|--------| | U-Boot

Once the device is recognized: