I have GL-iNet AX1800 Flint device and can't install OpenWRT 25.12.2 in u-boot mode.
After loading to u-boot web interface (at the bottom of the page there is u-boot version uboot2.0: 21.08.31) and selecting u-boot firmware with OpenWRT openwrt-25.12.2-qualcommax-ipq60xx-glinet_gl-ax1800-squashfs-factory.ubi this page appears
UPDATE IN PROGRESS
Your file successfully uploaded! Update is in progress and you should wait for automatic reset of the device...
Led turn blue on the device, but nothing happens even after 30 minutes. After opening http://192.168.1.1 web page, there is standard u-boot starting page with select firmware and flash buttons. Restarted device manually (powering off and on) and my previous firmware loaded.
I have tried to flash official u-boot image openwrt-ax1800-4.6.8-1017-1729176012.img from GL-iNet site, it is flashed and rebooted the device. After device loaded as normal with selected official firmware.
Maybe there is another way to flash this device with OpenWRT? I have tried different versions of OpenWRT 25.12.0-25.12.2, same result every time.
Can i look into u-boot logs, what is happening there, why OpenWRT firmware failed to flash, but official works as intended?