<ul>
<li><p>Make sure your SD card is formatted to FAT32.</p>
</li>
<li><p>The printer can only understand files on the SD card that
are <code>.gcode</code> or <code>.bin</code> . In your case, you will need to flash the
pre-compiled firmware as a <code>.bin</code> file.</p>
</li>
<li><p>Make sure the file is named <code>firmware.bin</code> and that it is the right
firmware for your 3D printer. <strong>It will not work if it is still in a
<code>.zip</code> or <code>.rar</code> archive.</strong></p>
</li>
<li><p>I do not own an Ender 3 V2 myself, but from experience, the screen may
stay blank for around 5 seconds while the motherboard updates when you reboot the printer. If
your printer does this while it updates, it can be a good way to tell
if your firmware update worked.</p>
</li>
<li><p>On the LCD navigate the UI to find the <code>Restore Defaults</code> button.</p>
</li>
</ul>

CC BY-SA 4.0
2021-08-13T06:40:13.483Z
2021-08-13T06:40:13.483Z
Artichoke
<p>I have a new Ender 3 V2 printer that I assembled. The printer reads the TF/SD stock card info but won't read the auto-level code I downloaded. It doesn't even show up on the card.</p>
<p>I downloaded auto-level code and the printer won't read that code, other than the factory-installed code that came with the printer. I formatted the SD card per advice but still no reading of the card by the printer.</p>
<p>This is my first 3D printer and I am not very tech-savvy but I think I've done everything right per instructions and descriptions I've seen online.</p>

CC BY-SA 4.0
2021-08-12T18:31:41.270Z
What's the file name of the auto level code as you put it on your TF card?  Also, welcome to 3D Printing Stack Exchange!  Please take the [tour] and read over the [FAQ] -- it'll help you ask better questions and write better answers.
Zeiss Ikon
CC BY-SA 4.0
2021-08-12T18:43:58.400Z
ender+3+bed+level(1)zip
Bam Steele
CC BY-SA 4.0
2021-08-12T18:44:36.847Z
from thingiverse
Bam Steele
CC BY-SA 4.0
2021-08-12T18:52:48.657Z
I purchased a cr touch auto bed leveling sensor and from what i have researched I will need to download another gcode to run that sensor. if my printer wont read new gcodes that's due to be delivered today I am quite worried I wont be able to use the  the new sensor . Thank you for the welcome.
Bam Steele
CC BY-SA 4.0
2021-08-12T18:53:53.280Z
Your printer doesn't know how to read a .zip file.  It can only execute .gcode (or in the case of flashing new firmware, .bin or possible .hex).
Zeiss Ikon
CC BY-SA 4.0
2021-08-12T18:56:43.410Z
I have edited your post because it was difficult to understand what exactly is going on. Please [edit] additional information that can help you with the problem. If you see anything that needs to be changed, please do so.
agarza
<creality-ender-3>
New printer won't read files from SD card
Bam Steele
# New printer won't read files from SD card

(Asked by: username_0 on 2021-08-12)

I have a new Ender 3 V2 printer that I assembled. The printer reads the TF/SD stock card info but won't read the auto-level code I downloaded. It doesn't even show up on the card.

I downloaded auto-level code and the printer won't read that code, other than the factory-installed code that came with the printer. I formatted the SD card per advice but still no reading of the card by the printer.

This is my first 3D printer and I am not very tech-savvy but I think I've done everything right per instructions and descriptions I've seen online.

**Tags:** creality-ender-3
> **Comments:**
> **username_1**: What's the file name of the auto level code as you put it on your TF card?  Also, welcome to 3D Printing Stack Exchange!  Please take the [tour] and read over the [FAQ] -- it'll help you ask better questions and write better answers.  
> **username_0**: ender+3+bed+level(1)zip  
> **username_0**: from thingiverse  
> **username_0**: I purchased a cr touch auto bed leveling sensor and from what i have researched I will need to download another gcode to run that sensor. if my printer wont read new gcodes that's due to be delivered today I am quite worried I wont be able to use the  the new sensor . Thank you for the welcome.  
> **username_1**: Your printer doesn't know how to read a .zip file.  It can only execute .gcode (or in the case of flashing new firmware, .bin or possible .hex).  
> **username_2**: I have edited your post because it was difficult to understand what exactly is going on. Please [edit] additional information that can help you with the problem. If you see anything that needs to be changed, please do so.  

---

## 1 answers

### Answer by username_3 on 2021-08-13. Score: 1

* Make sure your SD card is formatted to FAT32.
* The printer can only understand files on the SD card that
  are `.gcode` or `.bin` . In your case, you will need to flash the
  pre-compiled firmware as a `.bin` file.
* Make sure the file is named `firmware.bin` and that it is the right
  firmware for your 3D printer. **It will not work if it is still in a
  `.zip` or `.rar` archive.**
* I do not own an Ender 3 V2 myself, but from experience, the screen may
  stay blank for around 5 seconds while the motherboard updates when you reboot the printer. If
  your printer does this while it updates, it can be a good way to tell
  if your firmware update worked.
* On the LCD navigate the UI to find the `Restore Defaults` button.


---

