Breed

Breed is a popular closed-source router bootloader in China, known for stability and ease of use.

Breed is a bootloader specifically designed for routers, created by a Chinese developer.

Official Website: http://www.breedbad.com/ (backup: breed.lede.work)

Main Features:

1. Web console interface
2. Multiple firmware backups
3. Built-in TFTP server
4. Memory test tool
5. Environment variable editor
6. Boot record repair

1. MIPS: MT7620/MT7621 series
2. ARM: Some ARM routers
3. Broadcom: Some Broadcom chip models

1. Obtain Breed compatible with your router model
2. Backup OEM firmware
3. Confirm router has SSH/Telnet access
4. Ensure Breed file is compatible with the router

# Connect TTL serial
# Enter U-Boot command line

# Erase OEM U-Boot partition
erase 0x9f000000 +0x10000

# Write Breed
tftpboot 0x81000000 breed.bin
cp.b 0x81000000 0x9f000000 0x10000

# Reboot
reset

For routers that already have Breed installed:

1. Enter Breed Web console
2. Find “Restore OEM U-Boot” option
3. Upload Breed file

# Connect to router via SSH/Telnet
# Assuming Breed file is uploaded to /tmp

mtd write /tmp/breed.bin u-boot
reboot

1. Power off the router
2. Hold the Reset button
3. Insert power cable
4. Wait about 5 seconds, release Reset
5. Access http://192.168.1.1 in browser

1. Supports uploading .bin/.trx firmware
2. Auto-verifies firmware integrity
3. Supports dual firmware backup

1. Modify environment variables
2. Set boot arguments
3. View memory info
4. Factory reset

1. Memory test
2. Flash viewer
3. TFTP server
4. Firmware backup

Commands available in Breed:

# View help
help

# View environment variables
printenv

# Set environment variables
setenv lan_ip 192.168.1.1
setenv bootargs console=ttyS0,115200

# Save environment variables
saveenv

# Boot specified firmware
bootm 0x9f020000

# TFTP boot
tftp 0x81000000 openwrt.bin
bootm

setenv ipaddr 192.168.1.1
setenv serverip 192.168.1.100
tftpboot 0x81000000 firmware.bin
bootm

1. Confirm Breed file is correct
2. Check if Flash address is correct
3. Try entering Breed recovery mode
4. Reflash via TTL

1. Check if computer IP is 192.168.1.x
2. Try holding Reset for longer
3. Check ethernet cable connection
4. Power cycle and retry

1. Reflash Breed via TTL
2. Use programmer to directly write to Flash
3. Refer to the router model's unbricking tutorial

# Execute in Breed console
env default -a
saveenv
reset

1. U-Boot
2. CFE
3. TFTP Recovery
4. TTL Serial Unbrick