<h3>What happened?</h3>
<p>The printer is displaying the message: <strong>The UV LED calibrator is not detected. Check the connection and try again.</strong></p>
<p>Error name: UV LED calibrator not detected</p>
<p>Error code: #10311</p>
<h3>How to fix it?</h3>
<p>The UV calibrator must be connected to the front USB port when instructed or before the calibration has started.</p>
<p><img decoding="async" loading="lazy" style="display: block; margin-left: auto; margin-right: auto;" src="https://help.prusa3d.com/wp-content/uploads/2020/12/a52ba26455a4a35d_painted.jpeg" sizes="100vw" srcset="https://help.prusa3d.com/wp-content/uploads/2020/12/a52ba26455a4a35d_painted-600x338.jpeg 600w, https://help.prusa3d.com/wp-content/uploads/2020/12/a52ba26455a4a35d_painted-800x450.jpeg 800w, https://help.prusa3d.com/wp-content/uploads/2020/12/a52ba26455a4a35d_painted-300x169.jpeg 300w, https://help.prusa3d.com/wp-content/uploads/2020/12/a52ba26455a4a35d_painted-768x432.jpeg 768w, https://help.prusa3d.com/wp-content/uploads/2020/12/a52ba26455a4a35d_painted-1536x864.jpeg 1536w" alt="" width="600" height="864"></p>
<p>If the UV calibrator is connected correctly, try to update the firmware and restart the machine. If it persists, the UV calibrator may be broken and you should contact <a href="http://help.prusa3d.com/article/customer-support_2287">Customer support</a>.</p>
<h3>Guides</h3>
<p><a href="http://help.prusa3d.com/article/firmware-updating-sl1-sl1s_124776">Firmware updating (SL1/SL1S)</a></p>


UV LED calibrator not detected #10311 (SL1)

UV LED kalibrátor nebyl detekován #10311 (SL1)

UV-LED-Kalibrator nicht erkannt #10311 (SL1)

Calibrador LED UV no detectado #10311 (SL1)

Calibrateur LED UV non-détecté #10311 (SL1)

Calibratore LED UV non rilevato #10311 (SL1)

UV LED calibrator not detected #10311 (SL1) [進行中の翻訳]

Nie wykryto kalibratora UV LED #10311 (SL1)

Original Prusa Curing and Washing Machine (CW1S) is a recommended accessory for the Original Prusa SL1S

Original Prusa CW1 to CW1S platform upgrade

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The Original Prusa i3 MK3S+ is the successor of the award-winning Original Prusa i3 MK2S 3D printer.

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<h3>What happened?</h3>
<p>The printer is displaying the message: <strong>The printer has booted from an alternative slot due to failed boot attempts using the primary slot.</strong> Update the printer with up-to-date firmware ASAP to recover the primary slot. This usually happens after a failed update, or due to a hardware failure. Printer settings may have been reset.</p>
<p>Error name: Boot slot changed&nbsp;</p>
<p>Error code: #10601</p>
<h3>How to fix it?</h3>
<p>Try to flash the firmware again. Try to avoid using OTA flashing as your network can be a factor. If it persists, it may indicate an issue with the on-board eMMC storage and the board may need to be replaced. If so, please contact support.</p>
<h3>Guides</h3>
<p><a href="http://help.prusa3d.com/article/firmware-updating-sl1-sl1s_124776">Firmware updating (SL1)</a></p>


Boot slot changed #10601 (SL1/SL1S)

<h3>What happened?</h3>
<p>The printer is displaying the message: <strong>The printer is not calibrated. Please run the Wizard first</strong>.</p>
<p>Error name: Not mechanically calibrated</p>
<p>Error code: #10113</p>
<p>Issued when the printer has not been calibrated before a print.</p>
<h3>How to fix it?</h3>
<p>Go in the printer menu to <em>LCD menu -&gt; Settings -&gt; Calibration -&gt; Printer Calibration</em>. Follow the instructions on the screen, and remember that you can swipe the screen to see example pictures of each step of the calibration.</p>


Calibration error #10113 (SL1/SL1S)

<h3>What happened?</h3>
<p>The printer is displaying the message: <strong>Failed to load fans and LEDs factory calibration.</strong> The printer was not able to find the UV PMW value due to a calibration error, or the installation of a new UV LED.</p>
<p>Error name: Calibration load failed</p>
<p>Error code: #10524</p>
<h3>How to fix it?</h3>
<p>Please calibrate the printer in the menu in Settings -&gt; Calibration -&gt; UV Calibration. If you have just replaced the UV LED, follow the steps to <a href="http://help.prusa3d.com/guide/how-to-replace-a-uv-led-assembly-sl1_149828#150319">calibrate the UV LED</a>.&nbsp;</p>
<p>&nbsp;</p>


Calibration load failed #10524 (SL1)

<h3>What happened?</h3>
<p>The printer displaying the message: <strong>Cannot set the update channel</strong>, please restart the printer and try again.</p>
<p>Error name: Cannot set update channel</p>
<p>Error code: <span data-sheets-value="{&quot;1&quot;:2,&quot;2&quot;:&quot;#10513&quot;}" data-sheets-userformat="{&quot;2&quot;:33554945,&quot;3&quot;:{&quot;1&quot;:0},&quot;12&quot;:0,&quot;28&quot;:1}">#10513</span></p>
<p><span data-sheets-value="{&quot;1&quot;:2,&quot;2&quot;:&quot;This is related to stable, beta, dev update channels. The user can switch stable&lt;-&gt;beta in advanced settings -&gt; firmware update. The admin interface allows to switch also to dev. This signals switch failure. Most probably the printer configuration is somehow broken. An update to latest build in the current channel or factory reset could help.&quot;}" data-sheets-userformat="{&quot;2&quot;:33554945,&quot;3&quot;:{&quot;1&quot;:0},&quot;12&quot;:0,&quot;28&quot;:1}">This is related to update channels for stable or beta versions of the firmware. The user can choose between a stable and beta version of the firmware, in Settings -&gt; Firmware. Most probably the printer configuration is somehow broken.&nbsp;</span></p>
<h3>How to fix it?</h3>
<p><span data-sheets-value="{&quot;1&quot;:2,&quot;2&quot;:&quot;This is related to stable, beta, dev update channels. The user can switch stable&lt;-&gt;beta in advanced settings -&gt; firmware update. The admin interface allows to switch also to dev. This signals switch failure. Most probably the printer configuration is somehow broken. An update to latest build in the current channel or factory reset could help.&quot;}" data-sheets-userformat="{&quot;2&quot;:33554945,&quot;3&quot;:{&quot;1&quot;:0},&quot;12&quot;:0,&quot;28&quot;:1}">Update to the latest stable firmware version and/or factory reset.</span></p>
<h3>Guide</h3>
<p><a href="http://help.prusa3d.com/article/firmware-updating-sl1-sl1s_124776">Firmware updating (SL1/SL1S)</a></p>


Cannot set update channel #10513 (SL1/SL1S)

UV LED calibrator not detected #10311 (SL1)

What happened?

How to fix it?

Guides

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