# Zebra ZD621R: Calibrate from Printer's Interface

<p class="callout warning">****ATTENTION:****<span style="white-space: pre-wrap;"> We suggest </span>****first****<span style="white-space: pre-wrap;"> performing the </span>[calibration from the website](https://kb.simplerfid.com/books/calibrate-printer/page/calibrate-from-the-web-portal). If the calibration fails, then follow these steps.</p>

### Step 1: Media Calibration

First, make sure media is properly loaded, the printer cover is closed, and printer power is ON.

To perform a Media Calibration, press and hold PAUSE + CANCEL buttons for two seconds.

[![image.png](https://kb.simplerfid.com/uploads/images/gallery/2025-05/scaled-1680-/JmQimage.png)](https://kb.simplerfid.com/uploads/images/gallery/2025-05/JmQimage.png)

### Step 2: RFID Calibration

<span style="white-space: pre-wrap;">From the printer's Home screen, press the </span>****Menu****<span style="white-space: pre-wrap;"> button:</span>

[![home screen.png](https://kb.simplerfid.com/uploads/images/gallery/2025-05/scaled-1680-/R9ahome-screen.png)](https://kb.simplerfid.com/uploads/images/gallery/2025-05/R9ahome-screen.png)

<span style="white-space: pre-wrap;">Next, tap the </span>****RFID icon****<span style="white-space: pre-wrap;"> on the right side of the screen, then tap the </span>****RFID****<span style="white-space: pre-wrap;"> menu option:</span>

[![rfid menu.png](https://kb.simplerfid.com/uploads/images/gallery/2025-05/scaled-1680-/jTRrfid-menu.png)](https://kb.simplerfid.com/uploads/images/gallery/2025-05/jTRrfid-menu.png)

<span style="white-space: pre-wrap;">Tap </span>****RFID Calibrate****:

[![rfid menu options.png](https://kb.simplerfid.com/uploads/images/gallery/2025-05/scaled-1680-/1Xjrfid-menu-options.png)](https://kb.simplerfid.com/uploads/images/gallery/2025-05/1Xjrfid-menu-options.png)

<span style="white-space: pre-wrap;">Last, tap </span>****Start Calibration****<span style="white-space: pre-wrap;"> to perform the RFID calibration:</span>

[![start rfid calibration.png](https://kb.simplerfid.com/uploads/images/gallery/2025-05/scaled-1680-/9BFstart-rfid-calibration.png)](https://kb.simplerfid.com/uploads/images/gallery/2025-05/9BFstart-rfid-calibration.png)