> 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/troubleshooting-black-screen.md).

# How to Fix a Black Screen after upgrading the firmware?

If the touchscreen reboot to a black screen after firmware upgraded, you need to restore the touchscreen to factory settings: 

#### 1) Download the newest touchscreen firmware below and unzip the ‘V1.0.10 For Black Touchscreen.zip‘ file and copy those files to the SD card. 

<https://www.rotrics.com/pages/download>

#### 2) For the Arm firmware V2.1.2 or above, please open Rotrics Studio and click "**Terminal**", then send command **`M5010000`** to restore.&#x20;

For the Arm firmware lower than V2.1.2, please refer to these steps to upgrade your firmware: [How to upgrade Rotrics firmware](/faq-troubleshooting/faqs/upgrade-touchscreen-firmware.md#q-1-how-to-upgrade-rotrics-firmware).  then use Terminal to send command **`M5010000`**.&#x20;

#### 3) Connect touchscreen to the robot arm, the touchscreen will light up again after a few seconds.&#x20;

#### &#x20;4) DexArm needs to be powered off and reboot to complete the touchscreen reset.&#x20;