USB sticks not recognized anymore  

RE: USB sticks not recognized anymore

edit.

mine just stopped working.. threw it away and used anoter.

remember to format in fat32

RE: USB sticks not recognized anymore

Posted by: @trigger_trigger

edit.

mine just stopped working.. threw it away and used anoter.

remember to format in fat32

randito has tried another USB stick, so it may not be that.

If you don't want to buy a third USB stick to try then I would recommend contacting Prusa Support via the chat feature on the Prusa e-shop page as it sounds like you may have a dodgy USB port.

RE: USB sticks not recognized anymore

Thanks for the replies everyone.  I tried a couple of USB sticks and found one that did.  A brand-new 32G USB3 didn't work but the smaller 16GB USB2 did.   The cool one that came with the printer isn't working anymore. 

Here's the one that's working for me.  16GB USB2 (not an affiliate link)
https://www.amazon.com/gp/product/B007YX9O9O

I have noticed that this one is significantly faster than the included one.  Perhaps, it was on the "edge" of not working.  Either way, I'm back to printing again. 

Sorry for the freak-out. 

RE: USB sticks not recognized anymore

as it sounds like you may have a dodgy USB port.

Agreed.  It's working for now but I will keep an eye on it.

RE:

Note that another option might be that the actual port itself might be broken. In my case, the little bit of plastic inside had broken off. Don't know about you, but I've never experienced that with any USB port, ever.

Prusa told me it wasn't covered by the warranty because of their 'normal usage' clause (!), i.e. it was expected wear and tear. It certainly beggars my belief.

Going forwards, when I've replaced the mainboard to get a a working USB port again, I'll make sure I just use a USB extension cable to minimise the 'wear and tear' on what is presumably a low quality part on that board.

RE: USB sticks not recognized anymore

Make sure the disk is formatted as MBR and not GPT.  You can do this by opening a command prompt and using

diskpart (which will enter a diskpart prompt)

list disk

select disk x (where x is your USB.  Don't screw this up.)

convert mbr (This will erase the disk.)

RE: USB sticks not recognized anymore

Make sure the disk is formatted as MBR and not GPT

Thanks so much for this. I was almost going mad because my  stick wouldn't work anymore after I used it for a linux install.

You forgot one small step though.

select disk x (where x is your USB.  Don't screw this up.)

After this step you have to use

clean

before you can convert to mbr

RE:

Thought I would elaborate on what I have found with various USB devices.

Requirements:

• FAT32 (exFAT not supported)
• MBR Disk format (GPT not Supported)

So if you want to wipe and start fresh with any USB drive, these are the correct procedures to follow on the Windows OS...

DISKPART
LIST DISK
SELECT DISK X (where X is the disk number of your USB drive)
CLEAN (this actually clears all config from the disk itself AND removes existing partitions)
CONVERT MBR (assuming the disk is currently GPT)
CREATE PARTITION PRIMARY (there is no writable partition unless this is executed)

Only after running the above DISKPART commands can you then disk with Windows (as FAT32).

Hope this helps. I had 4 unusable USB drives for my printer that all now work afterwards.

RE: USB sticks not recognized anymore

Decided to include an example of my steps above as a walkthrough using an 8GB USB drive (Disk 4) current configured as GPT.

Microsoft DiskPart version 10.0.22621.1

Copyright (C) Microsoft Corporation.
On computer: ASUS-ROG-STRIX

DISKPART> LIST DISK

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          111 GB      0 B        *
  Disk 1    Online          698 GB      0 B        *
  Disk 2    Online          931 GB  3072 KB        *
  Disk 3    Online         3725 GB  1024 KB        *
  Disk 4    Online         7680 MB      0 B        *

DISKPART> SELECT DISK 4

Disk 4 is now the selected disk.

DISKPART> CLEAN

DiskPart succeeded in cleaning the disk.

DISKPART> CONVERT MBR

DiskPart successfully converted the selected disk to MBR format.

DISKPART> CREATE PARTITION PRIMARY

DiskPart succeeded in creating the specified partition.

DISKPART> LIST DISK

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          111 GB      0 B        *
  Disk 1    Online          698 GB      0 B        *
  Disk 2    Online          931 GB  3072 KB        *
  Disk 3    Online         3725 GB  1024 KB        *
* Disk 4    Online         7680 MB      0 B

DISKPART>