# OneShot seems to be broken (Is it due to broken key switch?) **URL:** \ **Category:** Help and Getting Started\ **Tags:** plugin\ **Created:** [September 24, 2020, 8:57pm UTC](https://community.keyboard.io/t/oneshot-seems-to-be-broken-is-it-due-to-broken-key-switch/4113 "2020-09-24T20:57:11Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![MaxG](https://avatars.discourse-cdn.com/v4/letter/m/a88e57/32.png) [@MaxG](https://community.keyboard.io/u/MaxG)\ **Post date:** [September 24, 2020, 8:57pm UTC](https://community.keyboard.io/t/oneshot-seems-to-be-broken-is-it-due-to-broken-key-switch/4113/1 "2020-09-24T20:57:12Z")
This is very similar to [Oneshot is broken](https://community.keyboard.io/t/oneshot-is-broken/3895). I compile OneShot using the ArduinoIDE. It compiles fine and I can flash the resulting firmware. I then can enter some text, including uppercase letters. However, OneShot behaviour does not work (`Shift, A` instead of `Shift+A`). My `Key_V` has a broken key switch I did not fix so far. Most of the time the key switch does not send any signal. I disabled it using `XXX`. Could the broken OneShot be due to the disfunct switch? I would like to “repair” the plugin without having to repair the switch for the moment. Does anyone know more about that OneShot behaviour? Thank you very much. ---
**Author:** ![merlin](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.keyboard.io/merlin/32/3416_2.png) [@merlin](https://community.keyboard.io/u/merlin)\ **Post date:** [September 24, 2020, 10:26pm UTC](https://community.keyboard.io/t/oneshot-seems-to-be-broken-is-it-due-to-broken-key-switch/4113/2 "2020-09-24T22:26:46Z")
It could be caused by the bad switch, but if it’s not causing any output (while you have it mapped to `Key_V`), that’s unlikely. It could be caused by an interaction with other plugins. Are you able to share your whole sketch? That would make debugging much easier. ---
**Author:** ![MaxG](https://avatars.discourse-cdn.com/v4/letter/m/a88e57/32.png) [@MaxG](https://community.keyboard.io/u/MaxG)\ **Post date:** [September 25, 2020, 6:58am UTC](https://community.keyboard.io/t/oneshot-seems-to-be-broken-is-it-due-to-broken-key-switch/4113/3 "2020-09-25T06:58:05Z")
Sorry, I wasn’t clear enough. The problem remains even when I use the OneShot example layout. My current layout can be found at [https://github.com/MaxG87/Model01-Firmware](https://github.com/MaxG87/Model01-Firmware). It too suffers from not working OneShot. To give a bit of context: The now broken key switch worked before a vacation and did not after it. Before the vacation OneShot worked. After I adapted the layout for the broken switch, OneShot did not work anymore. Unfortunately, I did not pay attention on whether it worked in between. ---
**Author:** ![MaxG](https://avatars.discourse-cdn.com/v4/letter/m/a88e57/32.png) [@MaxG](https://community.keyboard.io/u/MaxG)\ **Post date:** [October 12, 2020, 7:18am UTC](https://community.keyboard.io/t/oneshot-seems-to-be-broken-is-it-due-to-broken-key-switch/4113/4 "2020-10-12T07:18:38Z")
I tried to fix the key switch by replacing the upper half. By this, I broke it completely. Now OneShot works again. So I guess a broken key switch infers with OneShot even if it does not send key presses all the time. ---
**Author:** ![merlin](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.keyboard.io/merlin/32/3416_2.png) [@merlin](https://community.keyboard.io/u/merlin)\ **Post date:** [October 12, 2020, 12:58pm UTC](https://community.keyboard.io/t/oneshot-seems-to-be-broken-is-it-due-to-broken-key-switch/4113/5 "2020-10-12T12:58:20Z")
This makes sense. The faulty switch was still toggling its state, which ended up calling plugin event handlers with the value `Key_NoKey`, and OneShot wasn’t seeing that as a keypress, even though it would produce no output.