Unable to load firmware/failed packet header - SOLVED

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PlutocraticG
Posts: 4
Joined: Mon Mar 21, 2022 5:45 pm

Unable to load firmware/failed packet header - SOLVED

Post by PlutocraticG »

I've recently made a DIY adapter but I'm unable to load the firmware in the GIMX loader. My PC recognizes my Teensy 2.0 board and the UART in the devices menu. I've done the fast and slow blink test with the Teensy but when it comes to doing the firmware on GIMX I get the "failed to load packet header" error. I have a data cable which got me further than the charging only cable so that seems like it's fine.

I have also tried swapping RX and TX wires. I'll try to upload pictures shortly of the device.

Here are the parts I used

https://www.amazon.com/dp/B00LODGRV8/re ... UTF8&psc=1

I cut the headers off one end and soldered the wires directly

https://www.amazon.com/dp/B00NC43256/re ... UTF8&psc=1



*SOLVED* - needed to load the atmega32u4.hex file to the Teensy. Link would not work for me through the tutorial.
Last edited by PlutocraticG on Tue Mar 22, 2022 2:10 am, edited 1 time in total.
PlutocraticG
Posts: 4
Joined: Mon Mar 21, 2022 5:45 pm

Re: Unable to load firmware/failed packet header

Post by PlutocraticG »

Here is my soldering job. One of the wires in currently soldered from the back of the board.

https://imgur.com/a/rwEmaxi
https://imgur.com/a/CEafJXT
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ckaiycool
Posts: 308
Joined: Thu Jul 10, 2014 8:16 pm
Location: Sweden

Re: Unable to load firmware/failed packet header

Post by ckaiycool »

You need to update firmware with Teensy loader.
https://www.pjrc.com/teensy/loader.html
PlutocraticG
Posts: 4
Joined: Mon Mar 21, 2022 5:45 pm

Re: Unable to load firmware/failed packet header

Post by PlutocraticG »

As far as I know I did that with the slow and fast blink hex files. Is there an atmega32u4 hex file? I saw that referenced in another page but I'm not sure where to find it. If I remember correctly I did try to download firmware files from the tutorial but the link didn't take me to another page than where I already was.
Last edited by PlutocraticG on Tue Mar 22, 2022 12:10 pm, edited 1 time in total.
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ckaiycool
Posts: 308
Joined: Thu Jul 10, 2014 8:16 pm
Location: Sweden

Re: Unable to load firmware/failed packet header

Post by ckaiycool »

This is the one you need ;)
https://github.com/matlo/GIMX-firmwares ... es-8.0.zip

If this does not work i think you have to switch the TXD and RXD on the Uart.
PlutocraticG
Posts: 4
Joined: Mon Mar 21, 2022 5:45 pm

Re: Unable to load firmware/failed packet header

Post by PlutocraticG »

Yep that was it. In the tutorial the link to the firmwares didn't open a new page. Almost like it was being blocked like an ad. Everything works as of now. Thanks.
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ckaiycool
Posts: 308
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Location: Sweden

Re: Unable to load firmware/failed packet header - SOLVED

Post by ckaiycool »

You're welcome :D
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