How to update firmware on jtronic tinyg board not having a reset button

Started by jrg1968 on Aug 11, 2024 in TinyG Support. 2 replies, last activity Aug 12, 2024.

jrg1968 Aug 11, 2024 #12190

Hi all,

I have an aged jtronics tiny-g board and wanted to update the firmware from v380 to v440.

ARVDUDE is in place and all other things BUT
I cannot put the board in boot loader mode. I don't have an HW reset button
nor is 0x18 working or $boot=1.

A pic of my board: https://1drv.ms/i/s!AlgTXPgeJnsRmK1ROb1sYXBNHuTSfA?e=xK68h7

Zootalaws Aug 11, 2024 #12191

Short pin pair P25, next to BOOT on the board

jrg1968 Aug 12, 2024 #12192

I tried to Short pin pair P25, next to BOOT on the board.

unfortunately without success.

I tried:

* to wire them together
* to connect each of them to gnd
* I waited at least 5 seconds

nothing worked

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