Bluetooth BQB certification common issues include certification process, testing phases, product design, etc., as detailed below:
Certification Process Issues
SIG Listing and DID purchase / membership process errors: For example, trying to save costs with a free membership results in high DID fees for each submission or inability to use automation tools, delaying market launch.
Failure to submit changes after minor firmware or hardware modifications: After shipment, to fix a communication bug, engineering modified the RF chip firmware but did not submit it to SIG / laboratories, leading to the certificate being invalidated upon third-party inspection.
Testing Phase Issues
Profile / function declaration inaccuracies: Customers declare only implementing A2DP (audio), but the prototype also enables HFP (calls) and BLE GATT services, resulting in numerous unanticipated items added during testing, extending the cycle and increasing costs.
RF performance not meeting standards: The prototype complies with transmission power in the 2.4GHz bandwidth, but the antenna layout is too close to the metal casing or the ground plane is too small, leading to inadequate Rx sensitivity or excessive radiation in the testing chamber.
Protocol layer stability or interoperability failures: High failure rates when pairing devices with the test host in the laboratory; or BLE services disconnecting after long connections, such as 30 minutes.
Sample / test bench preparation issues: Failure to provide accessible RF ports during sample submission, or prototypes with casings that cannot be wired, preventing the laboratory from conducting RF measurements as planned.
Product Design Issues
Module reuse misconceptions: After using an already certified Bluetooth module, only testing the minimum range, but changes in the overall antenna packaging lead to non-compliance of the entire device’s RF.
* This article is a technical popular science article (not a commercial promotional advertisement), containing some AI-generated content, for reference only; for technical questions, please contact the platform operation personnel for modifications.
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