# GFX Hat not working out-of-the-box

**URL:** <https://forums.pimoroni.com/t/gfx-hat-not-working-out-of-the-box/23641>\
**Category:** Support\
**Created:** [December 28, 2023, 4:21pm UTC](https://forums.pimoroni.com/t/gfx-hat-not-working-out-of-the-box/23641 "2023-12-28T16:21:33Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![John-one](https://avatars.discourse-cdn.com/v4/letter/j/5daacb/32.png) [@John-one](https://forums.pimoroni.com/u/John-one)\
**Post date:** [December 28, 2023, 4:21pm UTC](https://forums.pimoroni.com/t/gfx-hat-not-working-out-of-the-box/23641/1 "2023-12-28T16:21:34Z")

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Hi, purchased a Pi zero 2 w and GFX hat, followed the instructions (i.e. with fresh install of latest OS) but running hello-world.py outputs the “AttributeError: ‘AsyncWorker’ object has no attribute ‘isAlive’” error. After a bit of looking around found that “python3 -m pip freeze | grep Cap1xxx” outputs “Cap1xxx==0.1.3” and that “sudo pip install Cap1xxx==0.1.4” fixes the problem (see [AttributeError: 'AsyncWorker' object has no attribute 'isAlive' · Issue #64 · pimoroni/displayotron · GitHub](https://github.com/pimoroni/displayotron/issues/64) ). Hope that helps anyone else finding the same problem and fingers crossed all will work from here!