Hi, this is the URL for the U-Boot update: GitHub - gl-inet/uboot-for-qca95xx: ar300m uboot source. Open the link and go to the “bin” directory. From there, locate the file for the AR300M called “uboot-gl-ar300m-20220216-md5-97ff7bb80cbf129fa21f34ded1559ff8.bin”. Download this file and proceed with the update. Please test to see if it works.