> For the complete documentation index, see [llms.txt](https://manual.rotrics.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.rotrics.com/faq-troubleshooting/troubleshooting.md).

# 🔑Troubleshooting

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**📅Update: 2020/09/30**
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Read the corresponding solution for the issue by clicking the page link to the particular topic below or jump to the corresponding page in the LEFT/TOP LEFT navigation list. 

## Most Common Issues

{% content-ref url="/pages/-Lvh\_bOelUKOicnvvHrq" %}
[Fix the clogged 3D printing nozzle](/faq-troubleshooting/troubleshooting/troubleshooting.md)
{% endcontent-ref %}

{% content-ref url="/pages/-M9MssjHC4HoRScFnWh3" %}
[DexArm couldn't connect to my computer](/faq-troubleshooting/troubleshooting/troubleshooting-cant-connect.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MEvhu2oGbZ9wszNpW-Y" %}
[Failed to upgrade Rotrics DexArm's Firmware](/faq-troubleshooting/troubleshooting/failed-to-upgrade-rotrics-dexarms-firmware.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MEvhSFSi0cOEaMx7ArM" %}
[DexArm beyond limits/stuck problem](/faq-troubleshooting/troubleshooting/dexarm-beyond-limits-stuck-problem.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MEvlG-ZIA-GrJtQDdYT" %}
[DexArm movement accuracy problem](/faq-troubleshooting/troubleshooting/dexarm-movement-accuracy-problem.md)
{% endcontent-ref %}

## General

{% content-ref url="/pages/-MXtU7ShwduFT7O9wyG5" %}
[“G-code sending task started...”  Error](/faq-troubleshooting/troubleshooting/g-code-sending-task-started...-error.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MEvhu2oGbZ9wszNpW-Y" %}
[Failed to upgrade Rotrics DexArm's Firmware](/faq-troubleshooting/troubleshooting/failed-to-upgrade-rotrics-dexarms-firmware.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MEvhSFSi0cOEaMx7ArM" %}
[DexArm beyond limits/stuck problem](/faq-troubleshooting/troubleshooting/dexarm-beyond-limits-stuck-problem.md)
{% endcontent-ref %}

{% content-ref url="/pages/-M9MssjHC4HoRScFnWh3" %}
[DexArm couldn't connect to my computer](/faq-troubleshooting/troubleshooting/troubleshooting-cant-connect.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MCBo5rKAJxLaxnUq1\_d" %}
[How to Fix a Black Screen after upgrading the firmware?](/faq-troubleshooting/troubleshooting/troubleshooting-black-screen.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MFZNDZMskCfA9t1Iz8x" %}
[Rotrics Studio "Internal error occurred"](/faq-troubleshooting/troubleshooting/rotrics-studio-internal-error-occurred.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MEvlG-ZIA-GrJtQDdYT" %}
[DexArm movement accuracy problem](/faq-troubleshooting/troubleshooting/dexarm-movement-accuracy-problem.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MITNalokfW0V2l8UlR9" %}
[Safety enclosure wiring changes](/faq-troubleshooting/troubleshooting/safety-enclosure-wiring-changes.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MJQWYF7BbIibLkHzAHK" %}
[Software connect problem after safety enclosure installed](/faq-troubleshooting/troubleshooting/software-connect-problem-after-safety-enclosure-installed.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MIIR4dKfchOzyrX51rs" %}
[Replace the cracked case](/faq-troubleshooting/troubleshooting/cracked-case.md)
{% endcontent-ref %}

## Drawing & Writing

{% content-ref url="/pages/-MEvlO1\_gkbegGFSn25J" %}
[The pen doesn't write with ink](/faq-troubleshooting/troubleshooting/the-pen-doesnt-write-with-ink.md)
{% endcontent-ref %}

## Laser Engraving

{% content-ref url="/pages/-MIHbOV6av1LC2A0ca\_0" %}
[Laser module won't light](/faq-troubleshooting/troubleshooting/laser-module-wont-light.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MITNalokfW0V2l8UlR9" %}
[Safety enclosure wiring changes](/faq-troubleshooting/troubleshooting/safety-enclosure-wiring-changes.md)
{% endcontent-ref %}

## 3D Printing

{% content-ref url="/pages/-Lvh\_bOelUKOicnvvHrq" %}
[Fix the clogged 3D printing nozzle](/faq-troubleshooting/troubleshooting/troubleshooting.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MEvls1u9ldu2hiH4efb" %}
[3D printing module won't heat up](/faq-troubleshooting/troubleshooting/3d-printing-module-wont-heat-up..md)
{% endcontent-ref %}

{% content-ref url="/pages/-MKhsxR38CaTdmhOIYVG" %}
[The Arm doesn't move, only filament comes out](/faq-troubleshooting/troubleshooting/the-arm-doesnt-move-only-filament-comes-out.md)
{% endcontent-ref %}

## Teach\&Pneumatic

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If you couldn't find any solution for the problem you met, please email <support@rotrics.com>
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