Gordon,
The boot loader is encrypted so you can’t simply replace the MCU. Jeff Moore, W1NC, can assist you with this if you can’t get a new programmed MCU from QRP Labs directly.
Tony?
On Fri, Jul 19, 2024 at 5:03?PM Gordon Young via <gordon.j.young=
[email protected]> wrote:
Is it even possible to replace a dead STM32/MCU myself on the QMX?
I read that the boot-loader has a firmware decryption key.
I believe my QMX has a dead MCU. I can handle SMD replacement.
Q: I'm not sure I can install the boot-loader: I suspect it's not available to me?
FWIW:? I do very much appreciate the fact that Hans is ensuring the legitimacy of QRP Labs devices (preventing Chinesium QMX's from hitting the market via firmware encryption)
73s!
~Gordon
