Allwinner H3 Secure boot, eFuse. Help please

[niks]

Please help. Hello everyone, please help me out. I urgently need to enable secure boot on my Allwinner H3 Nanopi neo core. I tried following the instructions from the forum https://forum.armbian.com/topic/3033-h3-soc-boot-rom-security-e-fuse/#findComment-84051 . But I couldn't burn the E-Fuse. At stage 5, when loading ./sunxi-fel -v -p write 0x2000 of the compiled code and checking whether the changes were applied, sunxi-fel sid/list/version doesn't work. I have to reboot the board, and then I see no result. Please help me solve this problem and burn it so that the bootloader signature is present and it is impossible to boot from the SD card using third-party means. Please, if you have any information, help me.

[niks]

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[niks]

Hi. There's progress, but I think I'm stuck. I created a bin file from efuse_burner.elf and it got written somewhere (?!). The UART showed a "board locked" message. Afterwards, I checked the SID, and it hadn't changed. When I try to boot from the SD card, the terminal is silent and immediately connects to the PC in fel mode. I dumped an emmc and my rotpk was in there. ##xxd emmc_dump.bin

00000000: 0000 8061 0000 0000 0000 0000 0000 0000 ...a............

00000010: 7c07 8aaa 1bcc 6cdf 85fd 6e67 f6fc ad6d |.....l...ng...m

00000020: 5535 5f38 e071 e5a3 57d7 c8a8 c255 8950 U5_8.q..W....U.P

00000030: 0000 0000 0000 0000 0000 0000 0000 0000 ................##

 

The sid dump also only has two values, the rest are zeros. I don't understand what they represent.

##xxd sid_dump.bin
00000000: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000010: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000020: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000030: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000040: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000050: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000060: 9300 0000 0000 0000 0000 0000 0000 0000  ................
00000070: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000080: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000090: 3100 0000 0000 0000 0000 0000 0000 0000  1...............
000000a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000100: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000110: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000120: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000130: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000140: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000150: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000160: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000170: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000180: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000190: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................##

 

When I try to sign the SD card using toc0, the same thing happens with fel. Please help. Did the key get written to the correct location, and how do I boot now?