[Solved] How to resolve WiFi Connection Issues on PB-69W / weak batteries issue

I have multiple devices running OpenBeken firmware, and it’s an excellent project. I love it! Thank you for the ongoing support and development!

However, I’m experiencing an issue with battery-powered door sensors (PB-69W or BK7231N/CBU3 models that are not TuyaMCU). The models described in these threads
https://www.elektroda.com/rtvforum/topic3994294.html or here: https://www.elektroda.com/rtvforum/topic3972898.html

Time to time when the sensor batteries go weak and I notice it too late, the sensor goes to the safe mode after replacing the batteries. I understand. It is OK. I have to exit the safe mode manually. But some devices are not able to recover easy way. I have flashed the firmware again via UART and restored obk configuration.

Now I have two PB-69W devices which seems to be not repairable in my opinion. I tried to re-flash it, restore RF partition, I am able to start in safe mode, I am able to check the MAC, but I am not able to connect it to WiFi regardless the MAC at basic management seems to be OK. I noticed, that MAC differs in basic Web GUI and in Web App. See the attachments.





Questions:
How to recover RF partition other way and get/write right MAC?
How to avoid problems with weak batteries?
I have similar problem with the TuyaMCU chip.

Thank you.

Regarding the RF/mac issue if you have the original firmware backups then reflashing those in their entirety and starting again with OpenBeken should sort that out

@divadiow "Thanks for your reply! I flashed the original Tuya backup and then the OpenBeken firmware, and it works well on both devices.

Note to others: If you restore the original Tuya backup to more devices, it contains the original MAC address, so you have to change it to avoid conflicts."

@divadiow "Thanks for your reply! I flashed the original Tuya backup and then the OpenBeken firmware, and it works well on both devices.

Note to others: If you restore the original Tuya backup to more devices, it contains the original MAC address, so you have to change it to avoid conflicts."