Well, these magazines are printed by their own library to help developers debug the application, if you have no problems with the Bluetooth module, this should not cause problems.
Basically, PF Filter is only a packet filter, which means that all packets are received from the client, and do not have a rule to block some.
Recorded from btm_ble_adv_filter.c in external / bluetooth / bluedroid / stack / btm /
if (NULL == p_bda_filter || (p_target != NULL && p_bda_filter)) { BTM_TRACE_ERROR("Error: Can not clear filter, No PF filter has been configured!"); return st; }
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