Why do some phones have static UID and some do not? Is this chipset related? That depends on the chipset and the implementation of the NFC stack. As far as I’m aware of, there are three different scenarios used by various Android NFC devices: The device has a secure element and uses the static UID … Read more
I beleive All handsets with Android Kitkat, having NFC, supports HCE. Based on above, here is the list returned by gsmarena – currently 77 handsets. Top 70 out of 77 ————————— Samsung Galaxy S5 LG G3 Sony Xperia Z2 Samsung Galaxy Note 3 Samsung I9500 Galaxy S4 HTC Desire 816 HTC One (M8) Sony Xperia … Read more
The ACR122U contains a PN532 NFC controller chip. The PN532 supports host card emulation through its TgInitAsTarget command (see the PN532 user manual). In order to pass commands to the PN532, you would connect to the ACR122U just as if it was a normal smartcard reader (e.g. using PC/SC). You can then send pack PN532 … Read more
Ok ! So i’ve found a solution to the problem I was having! On the Nexus 7, when the NFC is turned on, it gets its information from a config file in “/etc/” called “libnfc-brcm-20791b05.conf” Inside of this file there is a parameter called “NFA_DM_START_UP_CFG” By default, it looks like this: NFA_DM_START_UP_CFG={42:CB:01:01:A5:01:01:CA:14:00:00:00:00:0E:C0:D4:01:00:0F:00:00:00:00:C0:C6:2D:00:14:0A:B5:03:01:02:FF:80:01:01:C9:03:03:0F:AB:5B:01:00:B2:04:E8:03:00:00:CF:02:02:08:B1:06:00:20:00:00:00:12:C2:02:01:C8} To edit the … Read more
This is (at least with the official API) not possible: In the first part of the exchange the HCE device will present its UID; HCE devices should be assumed to have a random UID. This means that on every tap, the UID that is presented to the reader will be a randomly generated UID. Because … Read more
With host-based card emulation (HCE) in Android 4.4 you can only emulate the ISO/IEC 14443-4 protocol. More specifically you can only emulate application structures according to ISO/IEC 7816-4 (thus card emulation applications need to be selected though an AID). Moreover, the API doesn’t give you any means to specify if card emulation should be done … Read more