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adafruit raspberry pi 3B+ stopped working
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adafruit raspberry pi 3B+ stopped working

by ildarin on Sat Jan 12, 2019 8:15 pm

On 30 Nov 18 I ordered a raspberry pi and power supply from you. It
arrived on 4 Dec 18, and appeared to work just fine.

As of today, it will no longer boot. The red LED illuminates, but the
green LED never comes on.

Replacing the SD with one from a working Pi made no difference; the SD
from the Adafruit Pi works fine in the other one.

Here's what I was trying to do:
https://www.futurelearn.com/courses/phy ... eps/403085


ildarin

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Re: Raspberry Pi 3 B+ won't boot

by adafruit_support_carter on Wed Jan 09, 2019 7:00 pm
@ildarin Please start a new thread for your issue.
Attachments
p1b.jpg
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Re: adafruit raspberry pi 3B+ stopped working

by adafruit_support_mike on Sun Jan 13, 2019 2:11 am

What voltages do you see on the 5V and 3.3V GPIO pins?

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Re: adafruit raspberry pi 3B+ stopped working

by ildarin on Sun Jan 13, 2019 10:19 am

adafruit_support_mike wrote:What voltages do you see on the 5V and 3.3V GPIO pins?


5.5 and 0

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Re: adafruit raspberry pi 3B+ stopped working

by adafruit_support_mike on Mon Jan 14, 2019 3:16 am

Thank you, that corresponds to a known failure mode for the Pi3+.

Did you have anything connected on the breadboard when the Pi3B+ failed?

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Re: adafruit raspberry pi 3B+ stopped working

by ildarin on Mon Jan 14, 2019 10:29 am

adafruit_support_mike wrote:Thank you, that corresponds to a known failure mode for the Pi3+.

Did you have anything connected on the breadboard when the Pi3B+ failed?


a 330 ohm resistor and an LED

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Re: adafruit raspberry pi 3B+ stopped working

by adafruit_support_mike on Tue Jan 15, 2019 2:43 am

What RasPi pins were they connected to?

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Re: adafruit raspberry pi 3B+ stopped working

by ildarin on Tue Jan 15, 2019 4:26 am

adafruit_support_mike wrote:What RasPi pins were they connected to?

circuitcurrentflow1.gif
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Re: adafruit raspberry pi 3B+ stopped working

by adafruit_support_mike on Wed Jan 16, 2019 12:51 am

That could be related to the failure.

The Pi3B+ uses a new power management chip, and the 3.3V regulator is kind of fragile. Accidental contact between the 3.3V pin and GND can kill the 3.3V section, leaving the rest of the RasPi dead.

I can offer a 50% discount on a new Pi3B+. Send a note containing a link to this page and your order number to support@adafruit.com and the folks there will help you.

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