diff --git a/Compile-keyboard-bootloader-and-firmware.md b/Compile-keyboard-bootloader-and-firmware.md
index 4bbc07a..c3f0dc8 100644
--- a/Compile-keyboard-bootloader-and-firmware.md
+++ b/Compile-keyboard-bootloader-and-firmware.md
@@ -58,4 +58,7 @@ srec_cat bootloader_only_binaries/generic_boot20_pc13.bin -Binary -offset 0x0800
 # CN version  
 https://shimo.im/docs/Tc8RVQWdjvXtwhYv/ 《GD32f103rgt6/CKSF103R* 与stm32duino bootloader》
 
+custom keyboard:
+
+https://forum.clockworkpi.com/t/keyboard-stuck-in-bootloader-mode/8830/11