Here's the steps to create a secure boot image   git clone https://github.com/NickAlilovic/build.git --branch v20250306 cd build pico patch/u-boot/u-boot-h616/153-add-tanix_tx6s_axp313_defconfig.patch   You need to add this line to the bottom. "+CONFIG_SPL_IMAGE_TYPE_SUNXI_TOC0=y" and change "@@ -0,0 +1,37 @@" to @@ -0,0 +1,38 @@.   or just overwrite the file with this one. diff --speed-large-files --no-dereference --minimal -Naur u-boot-sunxi-647b392bf