# Since Buildbotics 1.6.6 upgrade Huanyang VFD continue button grayed out issue **URL:** \ **Category:** Spindle/VFD (Aftermarket/Unsupported)\ **Created:** [March 7, 2026, 7:39pm UTC](https://forum.onefinitycnc.com/t/since-buildbotics-1-6-6-upgrade-huanyang-vfd-continue-button-grayed-out-issue/37804 "2026-03-07T19:39:21Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![JohnD](https://avatars.discourse-cdn.com/v4/letter/j/58f4c7/32.png) [@JohnD](https://forum.onefinitycnc.com/u/JohnD)\ **Post date:** [March 7, 2026, 7:39pm UTC](https://forum.onefinitycnc.com/t/since-buildbotics-1-6-6-upgrade-huanyang-vfd-continue-button-grayed-out-issue/37804/1 "2026-03-07T19:39:21Z")
Hi All, Any help would be greatly appreciated, Im running buildbotics controller. Thank you. J ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [March 9, 2026, 4:01am UTC](https://forum.onefinitycnc.com/t/since-buildbotics-1-6-6-upgrade-huanyang-vfd-continue-button-grayed-out-issue/37804/2 "2026-03-09T04:01:29Z")
Have you tried rebooting the system? Or perhaps flashing the os on the sd card fresh? ---
**Author:** ![JohnD](https://avatars.discourse-cdn.com/v4/letter/j/58f4c7/32.png) [@JohnD](https://forum.onefinitycnc.com/u/JohnD)\ **Post date:** [March 10, 2026, 2:32pm UTC](https://forum.onefinitycnc.com/t/since-buildbotics-1-6-6-upgrade-huanyang-vfd-continue-button-grayed-out-issue/37804/3 "2026-03-10T14:32:41Z")
I have tried rebooting several times, but not flashing the os how do I do that? Thxs J ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [March 10, 2026, 2:36pm UTC](https://forum.onefinitycnc.com/t/since-buildbotics-1-6-6-upgrade-huanyang-vfd-continue-button-grayed-out-issue/37804/4 "2026-03-10T14:36:29Z")
> [@How to reflash the operating system on the Onefinity BB controller (Full SD card image)](https://forum.onefinitycnc.com/t/how-to-reflash-the-operating-system-on-the-onefinity-bb-controller-full-sd-card-image/5659): > > There are times when you may have a file go corrupt or (advanced) users start poking under the hood and may need to reflash the entire vanilla image to the sd card. This process is essentially reinstalling the Onefinity operating system from scratch. We offer preflashed SD cards with the latest stable firmware if you’d rather skip flashing yourself: [https://www.onefinitycnc.com/product-page/preflashed-micro-sd-card-for-bb-buildbotics-controllers-replacement](https://www.onefinitycnc.com/product-page/preflashed-micro-sd-card-for-bb-buildbotics-controllers-replacement) This process is only for advanced u… ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [March 11, 2026, 2:11am UTC](https://forum.onefinitycnc.com/t/since-buildbotics-1-6-6-upgrade-huanyang-vfd-continue-button-grayed-out-issue/37804/5 "2026-03-11T02:11:58Z")
A reflash should fix this up! ---
**Author:** ![JohnD](https://avatars.discourse-cdn.com/v4/letter/j/58f4c7/32.png) [@JohnD](https://forum.onefinitycnc.com/u/JohnD)\ **Post date:** [March 17, 2026, 4:31pm UTC](https://forum.onefinitycnc.com/t/since-buildbotics-1-6-6-upgrade-huanyang-vfd-continue-button-grayed-out-issue/37804/6 "2026-03-17T16:31:24Z")
Thank you, I have just received the micro sd card. It appears there are a lot of files on this card, is the process now to switch out the old with the new card and thats it or somethinf else? Thxs J ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [March 17, 2026, 4:33pm UTC](https://forum.onefinitycnc.com/t/since-buildbotics-1-6-6-upgrade-huanyang-vfd-continue-button-grayed-out-issue/37804/7 "2026-03-17T16:33:35Z")
unplug old card from pi, put in new card to pi, power on.