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Reprogramming Adafruit Pro Trinket: Bootloader Failures
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Reprogramming Adafruit Pro Trinket: Bootloader Failures

by KRGraphicsCG on Mon Sep 27, 2021 3:15 am

Good evening. My first post here and I've seen all of the other posts regarding this issue with the corrupted bootloaders on the Pro Trinket boards. So, I am working on a project that involves creating an Arduino Dimmer Switch (which worked perfectly), but I accidentally burned through the board with a soldering iron.

So I've gone ahead and ordered some more Trinkets from Amazon and unfortunately ALL OF THEM are not running the bootloader when I plug in the USB (using a USB 2.0 hub after reading about issues on Windows 10 and USB 3.0). The green light remains solid but no red LEDs pulsating.

https://learn.adafruit.com/introducing- ... bootloader

I'm following the guide in this link and I have the wires and an Arduino Uno R3 board already flashed and the pro trinket connected per the instructions.

But I am encountering many errors including signature failures and can't find the target. I've already tested all three of my boards and all of them failed. I really need this to work because it's for an HMC being used in VFX.

I've also ordered replacements and I'm encountering the same issues with the bootloader.

I'm running on Windows 10 and these issues are making me wary of using these devices. Maybe the bubble wrap is causing static on the board. Thank you.

KRGraphicsCG
 
Posts: 6
Joined: Mon Sep 27, 2021 2:55 am

Re: Reprogramming Adafruit Pro Trinket: Bootloader Failures

by KRGraphicsCG on Mon Sep 27, 2021 11:45 am

So I am back and making an attempt to fix the bootloader on this and I get the following error (even though the software correctly created the image I need). I also changed the build path as well so I am able to access the file I need.

fYMGXwhuL7.png
fYMGXwhuL7.png (120.81 KiB) Viewed 917 times


I've attempted this several times and the results are different every time :(

KRGraphicsCG
 
Posts: 6
Joined: Mon Sep 27, 2021 2:55 am

Re: Reprogramming Adafruit Pro Trinket: Bootloader Failures

by KRGraphicsCG on Mon Sep 27, 2021 2:14 pm

UPDATE: So I have managed to get the images found but, now I'm encountering this error

Code: Select all | TOGGLE FULL SIZE
11:01:02.743 -> Adafruit Trinket 5V programmer - June 9 2015
11:01:03.120 ->
11:01:03.120 -> Type 'G' or hit BUTTON for next chip
11:01:06.783 -> Starting Program Mode [OK]
11:01:06.924 ->
11:01:06.924 -> Reading signature:950F
11:01:06.924 -> Searching for image...
11:01:06.924 ->   Found "trinket_5V_2015_03_17.hex" for atmega328
11:01:06.924 ->
11:01:06.924 -> Setting fuses
11:01:06.924 ->   Set Lock Fuse to: 3F -> E000  Set Low Fuse to: FF -> A000  Set High Fuse to: D0 -> A800  Set Ext Fuse to: 5 -> A400
11:01:06.924 -> Verifying fuses...
11:01:06.924 ->    Lock Fuse: 3F is 3F   Low Fuse: 0xFF is 0x62Failed to verify fuses


I've checked my wiring and everything is correct...

KRGraphicsCG
 
Posts: 6
Joined: Mon Sep 27, 2021 2:55 am

Re: Reprogramming Adafruit Pro Trinket: Bootloader Failures

by KRGraphicsCG on Mon Sep 27, 2021 3:16 pm

SOLVED

KRGraphicsCG
 
Posts: 6
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Re: Reprogramming Adafruit Pro Trinket: Bootloader Failures

by Disciple on Tue Sep 28, 2021 12:56 pm

KRGraphicsCG wrote:SOLVED

Please do share the solution. I'm a small scale Pro Trinket customer, but I might need the answer some day. Thanks.

Hallelujah!
Disciple

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