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Snowman
(@snowman)
Active Member
Mini won't recognize BBF files?

Not sure if I'm missing something, I have followed all the directions in my Prusa manual and online. I'm trying to update my Mini's firmware to 4.4.0, have downloaded from the Prusa web site, unpacked the zip file, loaded on my USB memory stick in inserted in the Mini. When I do a restart, the Mini doesn't seem to see the BBS files and won't start the upgrade process. I have made sure that the FW updated setting is set to "on startup". but no luck. I also don't seem to see the BBF files when I look at the USB on the Mini, but not sure if I should be able to? Any thoughts? Thanks!

Posted : 27/11/2022 4:16 pm
Brent Day
(@brent-day)
Active Member
RE: Mini won't recognize BBF files?

I have the same problem. Tried clean disk and reformatted and nothing.

Posted : 27/11/2022 4:47 pm
Brent Day
(@brent-day)
Active Member
RE: Mini won't recognize BBF files?

I got mine to finally work... ewflynn  do you still need help?

 

Posted : 27/11/2022 6:51 pm
Snowman
(@snowman)
Active Member
Topic starter answered:
RE: Mini won't recognize BBF files?

Yes, what did you do that worked?

Posted : 27/11/2022 9:48 pm
Brent Day
(@brent-day)
Active Member
RE: Mini won't recognize BBF files?

ok.. first what is the FW you have now?

Posted : 27/11/2022 10:23 pm
Snowman
(@snowman)
Active Member
Topic starter answered:
RE: Mini won't recognize BBF files?

4.3.4

Posted : 27/11/2022 10:57 pm
Brent Day
(@brent-day)
Active Member
RE: Mini won't recognize BBF files?

ok.. try reformatting the USB ( FAT32 ). Load both files on USB. Have printer on and insert USB and press reset and press knob twice ..Alternative method - older firmware release

It is not possible to flash to the same, or an older version of the firmware release, using the method above. To flash an older firmware the procedure is as follows:

Push the reset-button, immediately followed by double-pressing the selector-knob.On the new screen, confirm the update by selecting the "FLASH" button and pressing the knob. 

Posted : 27/11/2022 11:09 pm
Snowman
(@snowman)
Active Member
Topic starter answered:
RE: Mini won't recognize BBF files?

Thanks, reformatted memory stick,  I gave it a try, but no luck.

Posted : 27/11/2022 11:38 pm
Brent Day
(@brent-day)
Active Member
RE: Mini won't recognize BBF files?

ok.. try reload of 4.3.4.

 

Posted : 27/11/2022 11:42 pm
justanotherjim
(@justanotherjim)
New Member
RE: Mini won't recognize BBF files?

I just want to add I'm having the exact same issue as OP on my Mini.

Current fw 4.3.4, Bootloader 1.1.0, Buddy Board 1.0.5.

I've tried 4 different USB drives of different sizes, formatting as Fat32, and copying both 4.4.0 firmware files to root of USB. Insert USB to printer and reset, but it never detects the new firmware. If I reset and then click menu knob twice, it will give the same Error! #12603 - Firmware file has invalid size. I've redownloaded the fw files several times, just incase.

I was just able to reflash 4.3.4 using a USB successfully, but attempting to update to 4.4.0 still gives the same error.

The firmware files I downloaded from https://help.prusa3d.com/downloads/mini/firmware are as follows:

Name: mini_release_boot_4.4.0+4180.bbf
Size: 1849284 bytes (1805 KiB)
SHA256: dc2455f5626ebfdabd3e114324b104a29fd5ded0874dfe95a6768abcbfd8cbdc

Name: mini_release_boot_update_pre_4.4_4.4.0+4180.bbf
Size: 825164 bytes (805 KiB)
SHA256: 0410856dad48e5d917fb17ccad62b50301ade768d362b46a4c8e0f227e9fba44

Posted : 05/12/2022 4:53 am
justanotherjim
(@justanotherjim)
New Member
RE: Mini won't recognize BBF files?

Just want to reply real quick that I did eventually get the update to go through, but I'm not sure why. As a last resort, I tried the same firmware, but a file I had happened to download last week on a different device. As far as I can tell, the files come up with the same SHA hash, so this may not be real issue, but for whatever reason, it worked.

Best of luck!

Posted : 05/12/2022 10:58 am
Snowman
(@snowman)
Active Member
Topic starter answered:
RE: Mini won't recognize BBF files?

Thanks for your update and help.  I'm going to give those a try, but still no luck.

Posted : 05/12/2022 11:53 am
Jakub Dolezal
(@jakub-dolezal-2)
Admin
RE: Mini won't recognize BBF files?

Hi guys,

the problem can be in the USB flash drive, make sure it is FAT32 formatted and if it doesn't work, try any other you have. We have spent months together with STM (chipset manufacturer) to tweak the USB drivers, but some flash drivers unfortunately misbehave. While the printer is booting up and checking for the firmware files, the USB flash drive simply refuses to connect, thus no firmware upgrade is found.

Assembly manuals

/ Knowledge Base
The guy behind Prusa assembly manuals...

Posted : 05/12/2022 5:00 pm
justanotherjim
(@justanotherjim)
New Member
RE: Mini won't recognize BBF files?

Thanks for the response.

I can say with certainty that nothing changed regarding my USB drive between the firmware not being recognized and then finally working. I tried at least four USB drives of varying sizes, reformatted them all multiple times to Fat32.

With one drive that to that point had not worked, I then copied the 4.3.4 firmware on, which was immediately recognized, and I was able to reflash 4.3.4 on the machine. After that, I deleted the 4.3.4 files, copied again 4.4.0 - but no luck. Error #12603

At that point, without changing anything on the USB drive, I copied the older download of 4.4.0 (not saying this was the issue, it's just what I did), and it finally was recognized. 

Just adding my experience in case that helps you guys figure this out.

Thanks!

Posted : 05/12/2022 11:19 pm
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