# About Flint WiFi Speed

**URL:** <https://forum.gl-inet.com/t/about-flint-wifi-speed/25551>\
**Category:** Router\
**Created:** [December 2, 2022, 9:57am UTC](https://forum.gl-inet.com/t/about-flint-wifi-speed/25551 "2022-12-02T09:57:35Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Dipin](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/d/e68b1a/32.png) [@Dipin](https://forum.gl-inet.com/u/Dipin)\
**Post date:** [December 2, 2022, 12:02pm UTC](https://forum.gl-inet.com/t/about-flint-wifi-speed/25551/2 "2022-12-02T12:02:27Z")

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Hi,How did you upgrade to SDK4.1? Uboot or WEB page? Is it possible to upgrade the firmware to SDK4.1 in this way and then retest the wifi speed? [Slow wifi on Flint AX1800 - #31 by subzero06](https://forum.gl-inet.com/t/slow-wifi-on-flint-ax1800/25409/31)

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