# Commands

- [Low Frequency](https://proxmark3x.mtoolstec.com/commands/low-frequency.md): Learn how to use commands of low frequency on Proxmark3 X.
- [Troubleshooting Writing to T55xx Cards with Proxmark3](https://proxmark3x.mtoolstec.com/commands/low-frequency/troubleshooting-writing-to-t55xx-cards-with-proxmark3.md)
- [High Frequency](https://proxmark3x.mtoolstec.com/commands/high-frequency.md): Learn how to use commands of high frequency on Proxmark3 X.


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