# ​ Flint GL-AX1800 UBoot Error **URL:** \ **Category:** Router\ **Created:** [November 18, 2024, 12:07pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656 "2024-11-18T12:07:02Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![jooje](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/j/50afbb/32.png) [@jooje](https://forum.gl-inet.com/u/jooje)\ **Post date:** [November 18, 2024, 12:07pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/1 "2024-11-18T12:07:02Z")
Hi every one. I try to update my uboot but I receive error as the image. Anyone knows any solution? ![Error](https://forum-static.gl-inet.com/original/3X/8/4/8499001a88ffd7dbe8bda47e12ec2d8bc8aebd1a.png) ---
**Author:** ![Denisimo](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/d/a88e4f/32.png) [@Denisimo](https://forum.gl-inet.com/u/Denisimo)\ **Post date:** [November 18, 2024, 2:43pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/2 "2024-11-18T14:43:23Z")
Re-download the firmware and try again. Did you download the correct firmware? ---
**Author:** ![impreza233](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/impreza233/32/21879_2.png) [@impreza233](https://forum.gl-inet.com/u/impreza233)\ **Post date:** [November 18, 2024, 2:58pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/3 "2024-11-18T14:58:37Z")
Check the firmware's MD5 for integrity. Perhaps it had downloaded before in a corrupt way, so checking for that could be useful. ---
**Author:** ![jooje](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/j/50afbb/32.png) [@jooje](https://forum.gl-inet.com/u/jooje)\ **Post date:** [November 18, 2024, 7:10pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/4 "2024-11-18T19:10:44Z")
I downloaded the firmware .img file from GL-iNet website and tried different versions. Same error for all files ---
**Author:** ![jooje](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/j/50afbb/32.png) [@jooje](https://forum.gl-inet.com/u/jooje)\ **Post date:** [November 18, 2024, 7:12pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/5 "2024-11-18T19:12:58Z")
Can you explain more as I'm totally newbie. How can I check and verify the MD5? ---
**Author:** ![impreza233](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/impreza233/32/21879_2.png) [@impreza233](https://forum.gl-inet.com/u/impreza233)\ **Post date:** [November 18, 2024, 7:37pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/6 "2024-11-18T19:37:14Z")
Yes. When you download the firmware from the web, the firmware file has a MD5/SHA256 code embedded. When it's downloaded, if the MD5/(SHA256) code is different between the origin (the web) and the destiny (your download folder on your PC), the file is changed (so is corrupt). You can view the SHA256 code with tools like 7ZIP, with the option CRC-SHA-\>SHA-256 in the context menus of the file. ![Captura de pantalla 2024-11-18 203530](https://forum-static.gl-inet.com/original/3X/0/9/097c2cee48c8dd128e2162534b20917db1fc6682.png) The SHA-256 of your downloaded file MUST be equal to the SHA-256 shown on the web. If not, the file is corrupt. ---
**Author:** ![jooje](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/j/50afbb/32.png) [@jooje](https://forum.gl-inet.com/u/jooje)\ **Post date:** [November 18, 2024, 9:29pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/7 "2024-11-18T21:29:15Z")
Thanks for explanation. I checked and the SHA-256 codes seem identical but the problem is still there 😮‍💨 ---
**Author:** ![admon](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/admon/32/32880_2.png) [@admon](https://forum.gl-inet.com/u/admon)\ **Post date:** [November 18, 2024, 9:33pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/8 "2024-11-18T21:33:14Z")
Which file did you download? Is it the right one for your router? ---
**Author:** ![jooje](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/j/50afbb/32.png) [@jooje](https://forum.gl-inet.com/u/jooje)\ **Post date:** [November 18, 2024, 9:40pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/9 "2024-11-18T21:40:12Z")
I use [this link](https://dl.gl-inet.com/router/ax1800/stable) for .img file download. And following the instruction based on [this tutorial](https://docs.gl-inet.com/router/en/3/tutorials/debrick/). I tried different versions. No difference ---
**Author:** ![impreza233](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/impreza233/32/21879_2.png) [@impreza233](https://forum.gl-inet.com/u/impreza233)\ **Post date:** [November 18, 2024, 9:57pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/10 "2024-11-18T21:57:12Z")
Follow the admins instructions. Perhaps there is something wrong with your router. ---
**Author:** ![Denisimo](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/d/a88e4f/32.png) [@Denisimo](https://forum.gl-inet.com/u/Denisimo)\ **Post date:** [November 19, 2024, 2:33pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/11 "2024-11-19T14:33:48Z")
Have you tried installing the firmware via GUI?? ---
**Author:** ![admon](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/admon/32/32880_2.png) [@admon](https://forum.gl-inet.com/u/admon)\ **Post date:** [November 19, 2024, 4:33pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/12 "2024-11-19T16:33:14Z")
Why are you trying to **update** Uboot? ---
**Author:** ![system](https://forum-static.gl-inet.com/original/3X/7/7/77e28f6cb342ac4bd641bd9a6254595d61b2812a.png) [@system](https://forum.gl-inet.com/u/system)\ **Post date:** [May 18, 2025, 4:33pm UTC](https://forum.gl-inet.com/t/flint-gl-ax1800-uboot-error/50656/13 "2025-05-18T16:33:39Z")
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