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3.8.0, MK2.5/MK2.5S and EXTR FAN ERROR  

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Mike C
(@mike-c-2)
Eminent Member
3.8.0, MK2.5/MK2.5S and EXTR FAN ERROR

According to the downloads site 3.8. is the latest, even for MK2/MK2S. After I flashed the firmware I saw the error EXTR. FAN ERROR. I then found the following https://help.prusa3d.com/article/0sr23msh8f-err-extr-fan-error , which states that 3.8.0 is not meant for MK2.5/MK2.5S and to downgrade to 3.2.3.

So..

  1. When will the website be updated?
  2. Will the latest firmware be fixed for MK2.5/MK2.5S?
  3. Where can I find 3.2.3? The only thing close to that in the older firmware section is 3.2.1
Posted : 21/09/2019 4:03 pm
Jonathan SCE
(@jonathan-sce)
Eminent Member
RE: 3.8.0, MK2.5/MK2.5S and EXTR FAN ERROR

The MK2, MK2S, MK2.5, and MK2.5S are four different models.  All four of them have a different firmware, even if some of them share the same version number.  The easiest way to tell the 2 vs 2.5 models apart thought is that the 2.5 have a magnetic heatbed.  If you have the older MK2 or MK2S, their firmware file is at the bottom of the download page under "Original Prusa i3 MK2" and "Original Prusa i3 MK2S" respectfully.  They both list version 3.2.3 (June 6, 2019) as the latest version.

Posted : 23/09/2019 3:11 pm
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