Allwinner H616 Custom Rom ((exclusive)) -
The H616 enjoys better community support than lower-end chips like the H313, resulting in several viable firmware projects. Tanix TX6S Allwinner H616 Spec Review - AliExpress
Unlike Qualcomm or Rockchip devices, the H616 scene relies heavily on open-source mainline Linux efforts. Here are the top three custom firmware options. allwinner h616 custom rom
Developing a custom ROM for the Allwinner H616 is a complex but rewarding process that transforms a restricted "black box" into an open-ended computing platform. Future work should focus on the full maturation of the Panfrost GPU driver to eliminate the need for proprietary ARM binary blobs entirely, ensuring a fully open-source software stack. References Allwinner Technology Co., Ltd. H616 Datasheet (V1.0) The Linux Mainline Project. ARM/Allwinner SoC Support Documentation LineageOS Wiki. Build Guides for ARM64 Devices Armbian Project. H616 Community Build Logs GPU driver integration The H616 enjoys better community support than lower-end
: Drivers for modules like the Allwinner-owned Xradio (XR819) are notoriously difficult to port to newer Android versions due to lack of source code. Signature Verification Developing a custom ROM for the Allwinner H616
Use the sunxi-6.6 branch from Linux-sunxi:

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