Issue with Core Replacement in RAK7431 and RS485 Communication

LPWAN Nodes RAK7431
1

Hello everyone,

We recently purchased a RAK7431 device, but we accidentally damaged its internal core. To try and resolve the issue, we replaced the core with one from a RAK7434 and attempted to upload the firmware for the RAK7431.

Additionally, in the RAK7434, we replaced the original sensor and installed an RS485 sensor. However, after these changes, we have been unable to establish proper RS485 communication.

Here are the links to the modules we are using:

:link: RAK7431
:link: RAK5802 - RS485 Interface
:link: WisNode Bridge RAK7432 / RAK7434

We would appreciate any suggestions or similar experiences that could help us solve this issue.

Thanks in advance!