📣 Request: Official Allwinner Tools for Signing and Building Firmware (V851S/V851SS)

Hello everyone,

I'm currently working on a custom firmware project for the Allwinner V851S/V851SS SoC (e.g., dash cam or smart camera). I've reached the stage where I need to modify and re-sign the firmware images (TOC0/TOC1) for use with tools like PhoenixCard.

Unfortunately, the tools found on GitHub (e.g., dragonsecboot, pack_tools, boot0, etc.) are often incomplete or fail to build due to missing references (e.g., rsa_sign_main, GetFullPath, etc.).

🔍 I'm looking for a complete and working version of the following tools:

dragonsecboot

pack

boot0

sunxi_tools

Full config files such as dragon_toc.cfg, sys_config.fex

Working pack_tools with all required source files

Full Tina SDK for V851S or V851SS

🎯 My goal is to properly sign and rebuild TOC0/TOC1 and PACKAGE images, and build a customized embedded Linux system.

📤 If anyone has the official SDK or a working toolchain, I’d really appreciate it if you could share it via Google Drive, Mega, Transfer.sh, or any other file host.

Thank you in advance to anyone who can help 🙏