# "HDMI no signal" from my touch screen Monitor **URL:** \ **Category:** Uncategorized\ **Created:** [December 11, 2024, 11:05pm UTC](https://forum.onefinitycnc.com/t/hdmi-no-signal-from-my-touch-screen-monitor/29919 "2024-12-11T23:05:07Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![charlesk](https://avatars.discourse-cdn.com/v4/letter/c/3ab097/32.png) [@charlesk](https://forum.onefinitycnc.com/u/charlesk)\ **Post date:** [December 11, 2024, 11:05pm UTC](https://forum.onefinitycnc.com/t/hdmi-no-signal-from-my-touch-screen-monitor/29919/1 "2024-12-11T23:05:07Z")
I was having problems with my one finity and was told to flash the sd card in the controller. It seemed to go well and the flash program said operation successful. I reinstalled the sd card the correct way with the lettering down and booted the system and I get HDMI no signal I have exhausted ever thing that pertains to the trouble shooting manual with no luck and I have only a choice of VGA or HDMI to pick from my monitor settings There are no other choices on the monitor I have connected , dis connected several times trying different things to no avail .Up until the sd card flash I have had no problems at all with the monitor Any thoughts I am stumped ---
**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:** [December 11, 2024, 11:49pm UTC](https://forum.onefinitycnc.com/t/hdmi-no-signal-from-my-touch-screen-monitor/29919/2 "2024-12-11T23:49:24Z")
> [@No signal on Screen / No video output from BB controller - Troubleshooting Video](https://forum.onefinitycnc.com/t/no-signal-on-screen-no-video-output-from-bb-controller-troubleshooting-video/11505): > > If the screen is turning on and showing a blue splash screen but no input video, try the following: (this should be an obvious first step, but make sure everything is plugged in exactly as this faq shows (a lot of people forget the wall power plug): [How to connect the Touch Display (7, 8, 10.8")](https://forum.onefinitycnc.com/t/how-to-connect-the-touch-display-7-8-10-8/5081)) Ensure the Big Red Physical Estop on the black control box is up/released. Twist and pull up hard to release it. The controller will not turn on (no lights, no fan sound from inside the box) and not… ---
**Author:** ![charlesk](https://avatars.discourse-cdn.com/v4/letter/c/3ab097/32.png) [@charlesk](https://forum.onefinitycnc.com/u/charlesk)\ **Post date:** [December 12, 2024, 12:46am UTC](https://forum.onefinitycnc.com/t/hdmi-no-signal-from-my-touch-screen-monitor/29919/3 "2024-12-12T00:46:27Z")
I have tried everything that is listed . The fact being I had no problem until the sd was flashed now I have no HDMI signal the screen comes up blue with that message. Maybe reflash the SD?? ---
**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:** [December 12, 2024, 1:56am UTC](https://forum.onefinitycnc.com/t/hdmi-no-signal-from-my-touch-screen-monitor/29919/4 "2024-12-12T01:56:02Z")
The list states to reflash the sd ---
**Author:** ![charlesk](https://avatars.discourse-cdn.com/v4/letter/c/3ab097/32.png) [@charlesk](https://forum.onefinitycnc.com/u/charlesk)\ **Post date:** [December 12, 2024, 8:07pm UTC](https://forum.onefinitycnc.com/t/hdmi-no-signal-from-my-touch-screen-monitor/29919/5 "2024-12-12T20:07:01Z")
I formatted the SD and re flashed This time it took way longer to flash after formatting and everything worked out Not formatting first I think was the issue Everything up and running Thanks for the info