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Trinket pro 5v bootloader not working
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Trinket pro 5v bootloader not working

by Refinedfab on Tue Aug 03, 2021 9:22 am

Hello,

I just received 35qty trinket pro 5v and none of them will work when I plug in the usb to upload a sketch.

I had a few boards left from previous order from a few months ago and those work great as usual, as well as a couple used ones I had laying around. This entire new batch I just got seems to be defective.... When I plug them in I only get a green LED and does not get recognized

Refinedfab
 
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Re: Trinket pro 5v bootloader not working

by Refinedfab on Tue Aug 03, 2021 6:34 pm

Can I get an RMA to return these? I need to get some working boards asap...

I see you guys are actively trying to phase out these trinkets... I would not be opposed to trading these for itsy 32u4 5v

Hopefully I can get some help so I can move forward with this matter.

Thanks

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Re: Trinket pro 5v bootloader not working

by Refinedfab on Fri Aug 06, 2021 7:48 am

I little help with this issue in a timely matter would be nice.

They tell me i have to post here in order to start the return process

This entire batch of boards do not work.

I have new boards(same thing) from a previous order and they work fine. As soon as i pull one from this new order the red light doesn't not come on or get recognized by the computer. I have went back and forth done this process several times to prove that it is this batch of boards, not my doing.

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Re: Trinket pro 5v bootloader not working

by adafruit_support_carter on Fri Aug 06, 2021 11:47 am

Just to make sure - everything else is the same in your testing? Same USB cable, port, computer, etc. You're just swapping older/working Trinket Pro's for one from recent order and seeing the issue?

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Re: Trinket pro 5v bootloader not working

by Refinedfab on Fri Aug 06, 2021 11:56 am

Yes you are correct.

I had 5 left over from a previous order from this one, burned them as usual, turned around opened the drawer grabbed this new bag of 35 to burn and tried a couple with the same not working result so i went back to the first 5 I burned and was able to reburn all those just fine. I have since tried 16 of the 35 and they all do the same thing(just a green light and do not get recognized by the computer)

So yes, I know my cable is good and I even tried another one to be sure. I even have some other trinkets around and all of those work fine. Just these 35 so I'm not sure what's going on with them.

Thanks for the help

Refinedfab
 
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Re: Trinket pro 5v bootloader not working

by franklin97355 on Fri Aug 06, 2021 12:37 pm

Are you sure the Trinkets are all the same? (Just checking.)

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Re: Trinket pro 5v bootloader not working

by adafruit2 on Fri Aug 06, 2021 12:41 pm

when you press the reset button, does the red LED ever come on/blink/pulse?

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Re: Trinket pro 5v bootloader not working

by Refinedfab on Fri Aug 06, 2021 1:05 pm

Yes they are all the same, Trinket PRO 5v

No, i do not get a red LED. Only a green one is illuminated

GOOD Boards (like my previous orders) turn on a red led when first plugged in (bootloader mode) then turn off after a few seconds. then back on again when you press the button.

On this order of boards when i plug in there is only green. when i press the button the computer dings after several seconds. if i try to upload it gives me an error: could not find USBtiny device.

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Re: Trinket pro 5v bootloader not working

by adafruit2 on Fri Aug 06, 2021 1:08 pm

ok please email support@adafruit to return/RMA the boards. use RMA FORPHIL

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Re: Trinket pro 5v bootloader not working

by Refinedfab on Fri Aug 06, 2021 1:13 pm

Ok, will do

Thanks a bunch!

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Please be positive and constructive with your questions and comments.