The ipTIME AX3000SM is a Wi-Fi 6 router, featuring four Gbit LAN ports and a single Gbit WAN port.

1. Download the OEM recovery software (ipTIME Firmware Wizard(11ac)) from the manufacturer's website
2. Download the OpenWrt factory image.
3. Press and hold the reset button, then power up the router.
4. Continue holding the button for more than 10 seconds, until the CPU LED stops blinking.
5. Connect the PC to the AX3000SM (e.g. LAN Port 1).
6. Run the OEM recovery software and follow the instructions.
7. Select the factory image during the router recovery process.
8. Wait for the router to boot from the factory image.

A simple TFTP command can be used as an alternative to the OEM recovery software.

1. Download the OpenWrt factory image.
2. Press and hold the reset button, then power up the router.
3. Continue holding the button for more than 10 seconds, until the CPU LED stops blinking.
4. Connect the PC to the AX3000SM (e.g. LAN Port 1).
5. Assign the PC IP address: 192.168.0.100/24.
6. Run the TFTP command as follows:

Important: Make sure you allow TFTP protocol in Windows firewall.

tftp -i 192.168.0.1 put <path-to-factory.bin> ipTIME_FIRM_WARE

tftp 192.168.0.1 -m binary -c put <path-to-factory.bin> ipTIME_FIRM_WARE

→ generic.flashing.tftp

1. Download the OpenWrt initramfs image.
2. Connect to the serial console (115200, 8N1), interrupt the auto-boot process by pressing 0 when prompted. Your selection will be echoed, and you will enter the command-line interface, which allows you to load the image via TFTP.

   A successful interruption will present a terminal prompt that looks like this:

    MT7981> 

3. Connect the TFTP server to the AX3000SM (e.g. LAN Port 1).
4. Assign the PC IP address: 192.168.0.100/24.
5. Load and run the initramfs image:

   MT7981> tftpboot 0x46000000 initramfs-kernel.bin
   MT7981> bootm 

6. Wait for OpenWrt to boot.
7. Transfer the sysupgrade image to the device using scp (or a similar tool), then install it using the sysupgrade command.

 # sysupgrade -n <path-to-sysupgrade.bin> 

Alternatively, instead of using scp, you can use the LuCI web interface. Navigate to http://192.168.1.1 and log in (username root, no password). Go to: System → Backup / Flash firmware → Flash new firmware image. Select the sysupgrade firmware image, then upload and flash it through the web interface.

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