Bluetooth® - My module is disconnecting right after connecting to a device (smartphone)
Open the Bluetooth® setting menu of your smartphone and remove the module record before you try again.
- Connect with the smart device and bond with it to store security keys on both ends.
- Factory reset your module to remove the security key from the module.
- Once reconnected with the smartphone, it may still think you have the key (but your module does not have it). It will generate a security error and disconnect. To resolve this, just delete the record of the module from the smartphone to completely remove the security key.