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Need to return a defective Zero4U - 4 Port USB Hub for Raspb
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Please be positive and constructive with your questions and comments.

Need to return a defective Zero4U - 4 Port USB Hub for Raspb

by JwD on Wed May 05, 2021 8:15 am

Need to return a defective Zero4U - 4 Port USB Hub for Raspberry Pi Zero v1.3 PRODUCT ID: 3298
It cripples any Pi Zero W its attached to - using the Adafruit 5V 2.5A Switching Power Supply with 20AWG MicroUSB Cable
PRODUCT ID: 1995
With nothing plugged into the USB ports, its host Pi zero W will run extremely degraded and WILL freeze - sometimes soon, but always if attempting to join a wireless network (Raspberry Pi OS 3.6 Jan2021, multiple SD cards, defaults and a plethora of other configurations, etc.)

Once the USB hub is removed the Pi stops having any issues whatsoever.

I only have Pi Zero W to test with (i.e. no non-wireless units)

JwD
 
Posts: 2
Joined: Sat May 01, 2021 11:06 pm

Re: Need to return a defective Zero4U - 4 Port USB Hub for R

by adafruit_support_carter on Thu May 06, 2021 6:09 pm

As mentioned on the product page:
https://www.adafruit.com/product/3298
use with a Pi Zero W requires a ferrite ring:
http://www.uugear.com/portfolio/is-zero ... pi-zero-w/

Do you have something like that in place?

adafruit_support_carter
 
Posts: 20354
Joined: Tue Nov 29, 2016 2:45 pm

Re: Need to return a defective Zero4U - 4 Port USB Hub for R

by JwD on Fri May 07, 2021 8:08 am

No I didn't.

I did receive the very small ferrite ring that was included with the hub.
But I had failed to read the product page (quick purchase after seeing it one of your videos)
couple that with the illusion it was too small to fit over either pair of pogo pins, I didn't even bother with it, and had forgotten it ever existed once I finally had free-time to test the board.
¯\_(ツ)_/¯ Sorry

Now that I have it, very snuggly, around the data pins the first Pi Zero W I have tested with is perfectly stable - thank you for the time and direction.

JwD
 
Posts: 2
Joined: Sat May 01, 2021 11:06 pm

Please be positive and constructive with your questions and comments.