We developing an android application for a client and using the Eye Beacon Sensor.
We can discover the ble tags and we are getting the tag sensor manufacturing data (temp, humandity,…). We like to read and write to the ble GATT services and characteristic described in EYE BEACON / BTSID1 - Wiki Knowledge Base | Teltonika GPS but we are always getting a READ_NOT_PERMITTED from android. Pairing/Bonding works.
Is there any addtional authentication necessary to write/read the bluetooth GATT Services/Characteristic on the Eye Beacon Sensor tag?
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