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Raspberry 3B+ and DAC+ not booting (4 long and 5 short green flashes)

Vladimir

November 22, 2019 07:23

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Hi!

I have a problem, system with Raspberry 3B+ and DAC+ Standard is not booting.

It stucks on the rainbow and doesn't go further.

The green light flashes 4 long and 5 short.

Without connected DAC+ everything works, Rasbian installs and launches (hifiberryOS without board just shows black screen after the rainbow).

At the second when I connect board – it stops booting. And in a half minute green light starts blinking. 

Tried 4 different power sources, every time without board everything works, with – not.

Tried with last HifiberryOS and with Raspbian – in both same behaviour.

Do you have any ideas how to solve it?

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12 comments

• 0
  
  HiFiBerry team November 22, 2019 07:42

  Try disabling EEPROM:
  https://www.hifiberry.com/docs/archive/rainbow-screen-disable-eeprom-usage/
  
  Best regards,
  Daniel

• 0
  
  Vladimir November 22, 2019 08:01

  Awesome. It worked. Thank you.

  Should I do anything in future about it? Do I need to re-flash the EEPROM so it won't happen again on system update?

• 0
  
  HiFiBerry team November 22, 2019 08:31

  While re-flashing isn't strictly needed, you can try this if you want by booting from this image:

  http://downloads.hifiberry.com/images/flash-dacplus.zip

  Best regards,
  Daniel

• 0
  
  Vladimir November 22, 2019 10:17

  Thank you, Daniel.

  For now I will leave it like it is, if I will face this problem in future (after updates, or reinstalling for some reason OS) – will flash it.

  Best,

  Vlad

• 0
  
  Vladimir July 01, 2020 16:35

  Hi! I'd like to get here once again.

  I upgraded from some 2019 version to last one manually.

  Had to do same thing with putting to config.txt (otherwise didn't load, same rainbow thing):

  force_eeprom_read=0

  BUT, now it loads only one time. As I understand on load it overwrites config.txt. AND my line of code disappears.

  Could you consult with that, please?

  Edited by Vladimir July 01, 2020 16:48
• 0
  
  Vladimir July 05, 2020 17:55

  Might you have an archive with previous builds? Couldn't find it... I would just roll back to 2019.11.20 (or something around that).

   

   

   

   
• 0
  
  HiFiBerry team July 06, 2020 06:51

  You can find some older release (but not that old) on the Github archive:
  https://github.com/hifiberry/hifiberry-os/releases
  
  However, you should also be able to re-flash the card with the latest HiFiBerryOS release. Just boot, then login via SSH and run
  
  /opt/hifiberry/contrib/flash.sh dacplus

  This will first modify the system configuration and reboot. Then run the same command again to flash the card.

• 0
  
  Vladimir July 06, 2020 09:09

  Hi!

  Thank you for your reply :)

  I did what you wrote, got the answer:

   

  This script comes with ABSOLUTELY no warranty. Continue only if you know what you are doing.

  Writing...

  3+1 records in

  3+1 records out

  1800 bytes (1.8 kB, 1.8 KiB) copied, 0.669912 s, 2.7 kB/s

  Done.

   

  And it did not help.

  Still can launch the system only 1 time after editing config.txt. After rebooting stucks on rainbow. :(

• 0
  
  HiFiBerry team July 06, 2020 09:38

  Either the EEPROM on the board is damaged or there is a problem with your Pi. Can you try another Pi?

• 0
  
  Vladimir July 06, 2020 19:16

  Unfortunately no... But I'm using this Pi for couple of years and had 4 different purpose systems running successfully on it. (if it matters anyhow for this case)

  Can I somehow forbid hifiberry to remove the line of code (force_eeprom_read=0) from the config.txt?

• 0
  
  Vladimir July 09, 2020 07:39

  If it is problem in the board, can i return it to the seller and get other one? Do I need to provide any proves that it has damaged EEPROM and it's not because I did it? (this was a problem from the first start)

• 0
  
  HiFiBerry team July 09, 2020 10:40

  If it's an official reseller and the board is unmodified, it should be no problem to claim warranty. Please check directly with the dealer about their warranty process.