急急急，开机一直进Loader烧录模式，求解！！！

3399prod 机器，在烧写debian10 之后。一直进入loader模式。
求解！！！

windows 和 linux 下都试过，都有问题。烧写debian10 之后。一直进入loader模式。

python3 flash.py --linux all
Command: sudo ./bin/flash.x86_64 UL ../Images/MiniLoaderAll.bin
Not found config.ini
Program Data in /home/qtimes/bin/FlashTool_CN/Shell/bin
Loading loader...
Loading loader failed!
Command: sudo ./bin/flash.x86_64 DI -p ../Images/parameter-linux.txt
Not found config.ini
Program Data in /home/qtimes/bin/FlashTool_CN/Shell/bin
check download item failed!
Command: sudo ./bin/flash.x86_64 DI -uboot ../Images/uboot.img ../Images/parameter-linux.txt
Not found config.ini
Program Data in /home/qtimes/bin/FlashTool_CN/Shell/bin
directlba=1,first4access=1,gpt=1
Download uboot start...(0x00002000)
Download image ok.
Command: sudo ./bin/flash.x86_64 DI -trust ../Images/trust.img ../Images/parameter-linux.txt
Not found config.ini
Program Data in /home/qtimes/bin/FlashTool_CN/Shell/bin
directlba=1,first4access=1,gpt=1
Download trust start...(0x00004000)
Download image ok.
Command: sudo ./bin/flash.x86_64 DI -boot_linux ../Images/boot_linux.img
Not found config.ini
Program Data in /home/qtimes/bin/FlashTool_CN/Shell/bin
directlba=1,first4access=1,gpt=1
Download boot_linux start...(0x00006000)
Compare data  failed in checking,exit download image!
Command: sudo ./bin/flash.x86_64 DI -rootfs ../Images/rootfs.img
Not found config.ini
Program Data in /home/qtimes/bin/FlashTool_CN/Shell/bin
directlba=1,first4access=1,gpt=1
Download rootfs start...(0x00036000)
Compare data  failed in checking,exit download image!
Command: sudo ./bin/flash.x86_64 rd
Not found config.ini
Program Data in /home/qtimes/bin/FlashTool_CN/Shell/bin
Reset Device OK.
qtimes@ThinkBook-15p:~/bin/FlashTool_CN/Shell$ python3 flash.py -q
loader
qtimes@ThinkBook-15p:~/bin/FlashTool_CN/Shell$ python3 flash.py -q
loader

看下串口有没有这几行信息：
toybrick_SnMacAc_check read sn id fail
toybrick_SnMacAc_check read mac id fail
toybrick_SnMacAc_check read ac id fail
toybrick_SnMacAc_check read sn_mac_ac fail
toybrick_SnMacAc_check goto loader

打印那几行LOG表示，这块板子没有烧写序列号。就算用fedora的uboot能起来，也可能有问题。
uboot读不到序列号的原因有几种：
1. 这块板子不是toybrick板子
2. 板子的emmc曾经被擦除过，vendor的内容也被清空。

那怎么解决呢?