Pi Zero W problems

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lukedearden
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Joined: Mon Apr 08, 2019 9:46 am

Pi Zero W problems

Post by lukedearden » Mon Apr 08, 2019 10:02 am

Order ID : #256059
Version of Raspberry : ZeroW pre-soldered header
Operating System : Raspian Stretch, Jessie Lite and Full, RetroPie 4.4 and 4.3
Part Code/Part Name
Fault : I suspect there is something wrong with the GPIO header but I'm unsure how I can confirm this
Troubleshooting Completed : yes


Hi,

I purchased a Pi zero W with pre-soldered header.

I've had various issues and I suspect something is wrong with the actual Pi.

I've tried various OS images and multiple SDcards

I've tried a known working official RPI PSU and USB from laptop.

RetroPie 4.4 and 4.3
Raspian Stretch, Jessie Lite and Full

Updated OS to latest version

Update FW to latest version

Issues
Seg faults/Kernel panic when I plug in usb keyboards using known working OTG adaptor

Seg Faults when using Adafruit JoyBonnet on GPIO until I added the line over_voltage=6 to /boot/config.txt

Trying to add a WaveShare 3.2" display but just get whitescreen. Configured using instructions from here https://retropie.org.uk/forum/topic/295 ... hare-32b/2

I just get a white screen.

I've tried the same SD Card and screen on a pi 3 model b and it works fine with the same config.

I suspect there is something wrong with the GPIO header but I'm unsure how I can confirm this,

Halp!

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Dave
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Re: Pi Zero W problems

Post by Dave » Mon Apr 08, 2019 3:47 pm

What power supply are you using? It could be a power issue.

Are you able to try a different PSU?
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lukedearden
n00b
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Joined: Mon Apr 08, 2019 9:46 am

Re: Pi Zero W problems

Post by lukedearden » Wed Apr 10, 2019 5:17 am

I mentioned in my initial post I'm using the official pi power supply. The same apply also works fine with my pi 3. I've also tried paying from USB.

Anyway I found the problem

There was a solder bridge across two of the gpio pins.

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Dave
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Re: Pi Zero W problems

Post by Dave » Wed Apr 10, 2019 8:51 am

lukedearden wrote:
Wed Apr 10, 2019 5:17 am
I mentioned in my initial post I'm using the official pi power supply. The same apply also works fine with my pi 3. I've also tried paying from USB.

Anyway I found the problem

There was a solder bridge across two of the gpio pins.
Ah ok, sorry must have missed that in your post!

Glad you have found the issue. Are you able to de-solder the bridge yourself?
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lukedearden
n00b
Posts: 3
Joined: Mon Apr 08, 2019 9:46 am

Re: Pi Zero W problems

Post by lukedearden » Wed Apr 10, 2019 12:55 pm

Hi,

I carefully knocked the solder off with a pinhead.

Things seem more stable now
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