Bluetooth BMS do not communicate, invisible.

[Plazivec]

After the last update on January 17, 2024 at 16:10, all BMS were down. Not even xiaoxiang APP can see them. What should I do? I'm just a user. I think something happened with the JBD bluetooth modules in the batteries. Two of the three modules are very difficult to access because the batteries are in tin boxes that cannot be opened without disconnecting the battery from the circuit.