Aspects disclosed herein relate to providing an improved collision resolution mechanism for handling multiple NFC-A devices where one or more of the NFC-A devices may not support SDD. In one example, a communications device is equipped to determine that a remote NFC device of two or more remote NFC devices supports SDD, resolve the remote NFC device of the two or more remote NFC devices using SDD, and determine whether a remaining remote NFC device of the two or more remote NFC devices supports SDD. In an aspect in which the remaining remote NFC device does not support SDD, the communications device may be equipped to set a flag indicating that unresolved remote NFC devices are present and/or send a read identifier (RID) message to the remaining remote NFC device.