<p>I needed to update the firmware. 1.05 was too old. 1.31 works.</p>

<p>Download from:
<a href="http://mindstorms.lego.com/en-us/support/files/default.aspx#Firmware" rel="nofollow">http://mindstorms.lego.com/en-us/support/files/default.aspx#Firmware</a></p>

<p>I did need to run the old NXT-G software to download the newer firmware.  I did not try to download the firmware using EV3.</p>

CC BY-SA 3.0
2013-09-07T01:47:02.213Z
2013-10-07T04:11:14.973Z
2013-10-07T04:11:14.973Z
dfrevert
<p>First off Ev3 and Nxt are different machines. However, it's most likely the firmware. I've just downloaded my firmware for Ev3 and I also tried out a program I made. It downloaded perfectly but when I tried to start it, it said "FILE NAME ERROR", which I believe is similar to your problem. I either recommend re-downloading the firmware or turning the Ev3 or Nxt off then trying it again.</p>

CC BY-SA 3.0
2013-10-17T02:14:06.760Z
I only have an NXT brick.  The question concerned using EV3 software to create a program and download the program to an NXT brick.  The NXT needed newer firmware.
dfrevert
CC BY-SA 3.0
2013-10-17T15:12:06.070Z
The NXT won't take programs from the EV3 programming environment!
Timtech
CC BY-SA 3.0
2013-10-22T01:51:57.637Z
Actually, the NXT does accept programs written in EV3-G. It did require a firmware upgrade.
dfrevert
CC BY-SA 3.0
2013-10-16T21:08:58.390Z
2013-10-17T01:18:14.253Z
2013-10-17T01:18:14.253Z
Beckham
<p>I downloaded the new EV3 software from Lego and installed it on Windows 7.  The EV3 software runs.  I plugged in an NXT using a USB cable.  EV3 can edit the memory on the NXT and remove programs/sounds/text files.</p>

<p>I created a program that uses the large motor to spin the B motor 1 rotation at 75% power.  The end program block finishes the very small program.</p>

<p>It downloads without complaint.  Run it and the NXT complains with "File error!".</p>

<p>Is this a known problem?
Is there a fix?</p>

<p>The NXT has firmware 1.05 loaded.</p>

<mindstorms><nxt><ev3>
Is there a fix for an NXT reporting "File error!" when running an EV3 program?
dfrevert
# Is there a fix for an NXT reporting "File error!" when running an EV3 program?

(Asked by: username_0 on 2013-09-06)

I downloaded the new EV3 software from Lego and installed it on Windows 7. The EV3 software runs. I plugged in an NXT using a USB cable. EV3 can edit the memory on the NXT and remove programs/sounds/text files.

I created a program that uses the large motor to spin the B motor 1 rotation at 75% power. The end program block finishes the very small program.

It downloads without complaint. Run it and the NXT complains with "File error!".

Is this a known problem?
Is there a fix?

The NXT has firmware 1.05 loaded.

**Tags:** mindstorms, nxt, ev3


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## 2 answers

### Answer by username_0 on 2013-09-07. Score: 4 | Accepted answer

I needed to update the firmware. 1.05 was too old. 1.31 works.

Download from:
<http://mindstorms.lego.com/en-us/support/files/default.aspx#Firmware>

I did need to run the old NXT-G software to download the newer firmware. I did not try to download the firmware using EV3.


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### Answer by username_1 on 2013-10-16. Score: 1

First off Ev3 and Nxt are different machines. However, it's most likely the firmware. I've just downloaded my firmware for Ev3 and I also tried out a program I made. It downloaded perfectly but when I tried to start it, it said "FILE NAME ERROR", which I believe is similar to your problem. I either recommend re-downloading the firmware or turning the Ev3 or Nxt off then trying it again.

> **Comments:**
> **username_0**: I only have an NXT brick.  The question concerned using EV3 software to create a program and download the program to an NXT brick.  The NXT needed newer firmware.  
> **username_2**: The NXT won't take programs from the EV3 programming environment!  
> **username_0**: Actually, the NXT does accept programs written in EV3-G. It did require a firmware upgrade.  

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