> ## Documentation Index
> Fetch the complete documentation index at: https://docs.meowkit.cc/llms.txt
> Use this file to discover all available pages before exploring further.
# First start
Thank you so much for choosing MeowKit! We’re excited for you to explore everything this little device has to offer and discover the many ways you can build, experiment, and create with it. We can’t wait to see what you’ll make, explore, and accomplish with MeowKit. **Enjoy your new MeowKit, and let the journey begin!**
# **MeowKit-S3 — Quick Start Guide**
\[**Quick Start [Guide.video](http://Guide.video)**]
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# **What's in the box**
doesn't come with a microSD card, so you'll need to purchase one separately.
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# Powering on
press and hold the power button for about 1–2 seconds. Once powered on, the screen and system interface will appear automatically.
Press and hold the power button for about 4–5 seconds. The screen will turn off automatically once the device has powered down.
# Rebooting
You can reboot the device from the system interface or directly through the GPIO header.
## Software reboot
Once the device is powered on, go to `Advanced` > `System`, then tap `Reboot`. The device will restart automatically.
## Hardware reboot
Briefly short the `RESET` and `GND` pins on the GPIO header with a jumper wire or Dupont pin. The device will restart immediately.
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# **SD Card Insertion**
Make sure a microSD card is inserted into your MeowKit before using storage-related features or updating firmware. The microSD card is used to store apps, assets, configuration files, media, logs, and other user data.
MeowKit supports FAT16 and FAT32 file systems and is compatible with most microSD / microSDHC cards. For the best compatibility and performance, we recommend using a standard 8–32 GB FAT32-formatted microSD card.
Higher-capacity cards may require longer initialization times and can vary depending on card quality and formatting. If the card is not recognized properly, please reformat it to FAT32 before use.
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# **EDC lanyard**
The integrated lanyard hole is CNC-machined from 6061 aluminum alloy with a hard anodized finish for enhanced durability and corrosion resistance.
To secure the lanyard, loop the strap through the hole and tighten as shown.
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