@northan

Hi Akura.

some NFC programs(NFC task launcher) have a minimum time frame for repeat NFC scans, maybe it would be good idea to integrate this option into the software

Ah that makes sense, nowadays the wireless charging coil and NFC antenna is bundled into one :)

Good deal, let us know how you go.

I haven't tried an S5 but if the S3,4 are anything to go by you are going to have a bad time.

Future Samsung phones should hopefully be better, can't say much more than that at this point!

that's actually the NFC ring control app for the NFC ring unlock you'll need to download the NFC ring unlock app from the Google play store

I believe the app shows you the common sweet spot (a merge between all submitted sweet spots) but I'm not sure if this is ture

@jasok2 the sweet spots are not indicative of multiple antennas, they're simply places on the one antenna where the RF field is strong enough to trigger a read of the ring. What they're talking about is multiple switched antennas which will give multiple read zones (potentially with multiple sweet spots).

https://forum.nfcring.com/topic/52/nfc-antenna-theory

Thanks for sharing! I've changed your post so the image gets displayed directly.

Thanks for the info, everyone. Looking up the returns info now. The second NFC tag has also stopped working. :(

@Lokki said:

Android unlocking is no more than a bonus to me.

For me it was the prime reason for backing.

"The metallic cover is the original S4 Cover" -- Nope, the original S4 cover is not metallic on the QA phones we have!

Without a case makes a huge difference with the Nexus 4 w/Alpha ring.

Hi, can you help us out a little by explaining what works and what doesn't? Can you read the nfc ring with the oppo?
That is a huge nfc antenna so it leaves me curious about how well it will work with the ring.

http://www.gizmochina.com/2013/10/28/oppo-n1-teardown-picture/attachment/2013102521055112912/

I should also mention that this test was with the V1NTAGE ring, not the alpha.

There are a few posts here concerning aftermarket NFC antennas, @jasok2 was modifying an Asus nfc reader and testing some of those antennas on it.
Basically any phone with a removable back plate with the NFC antenna mounted there will have accessible contacts, most Sony phones are that way though the waterproof ones are of course inaccessible unless you're willing to lose your waterproof rating.
Anything to do with aftermarket Qi is going to make NFC reception worse, not better.

Yeah, the cover just adds distance which is why it can make the sweet spot harder to hit.
Thanks for the pictures, @SwordFire
For anyone who hasn't noticed, the ring is oriented so that the long side of the battery mounted antenna is aligned with the long side of the ring.