How to resolve the issue of the firmware not starting after compiling OpenWRT?

If the compiled OpenWrt firmware fails to boot, it may have encountered some issues. Here are some possible solutions:

1. Check the compilation configuration: Make sure the correct target hardware platform and required functional modules are selected during the compilation process. Choosing the wrong configuration may result in the firmware failing to boot up properly.
2. Check hardware compatibility: verify that the compiled firmware is compatible with the hardware platform. Different hardware platforms may require different compilation options and drivers.
3. Verify the firmware flashing method: Ensure the firmware is properly flashed onto the device using the appropriate flashing tools and methods, such as TFTP, serial port, or a web interface.
4. Verify firmware integrity: Ensure that the compiled firmware file is complete, without any damage or missing key files. You may try to download or compile the firmware again.
5. Check the boot parameters: Try using a serial port or network debugging tool to view the device’s boot logs to see if there are any error messages or warnings. This can help pinpoint the specific cause of the issue.
6. Restore factory settings: If the above methods do not work, you can try restoring the device to its factory settings. This will erase all configurations and return the device to its original state. Specific instructions can be found in the device’s manual or official documentation.

If you’re still unable to solve the problem, it is advisable to seek help from the OpenWrt community or relevant forums where you can receive more professional and detailed support.