probably the case as other owners report very good read performance with the nexus 7 (2013!). I even have my ring quite far away and it reads it perfectly.
Are you sure you have a Nexus 7 (2013) ? Because the issues you have sound like the Nexus 2012 which has terrible NFC support.
You can use an arduino or raspberry pi based solution to read/Write and otherwise utilise the ring. You can also get NFC door locks that don't require you to program the ring before use.
There's a whole world of things out there that don't require a phone or tablet.
@teach42 testing without the back on gives you an indication of how well your NFC is or isn't functioning and gives you a baseline to move forward from. I believe @MikeInSeattle has a "difficult" device that has a different back from stock and works better that way.
I can't really help out with the Blackberry, @Symple-Rich, I've never used one in my life!
The S2 though, those are a difficult unit. If it reads one of your inlays though, it should read all of them (especially the Alpha). Your method may be slightly off. Can you describe how you've found your sweet spot and what you do to get the ring to read?
@Frederic that's expected behaviour pretty much.
Your Mileage May Vary with a case.
It basically depends on how well the manufacturer has implemented NFC in your device. If they do it poorly then you get a poor result with the ring.
Something to consider is that if you persist with it for a while then practice will make that action a little more natural (we tend to forget or gloss over how long it can take before a new action becomes natural, like whistling as a for-instance).
The phone sounds like the sweet spot will never be any better, but if it works at all then practice will make it work easier.
I heard Windows Phone 8.1 has brought improvement for NFC to remove the confirmation for trusted app. Is there any update for the Unlock capability?
It seems Windows Phone app NFC Ring Control hasnt been updated for more than a year.
Hehe, yea sorry @Geigy you kinda got ripped off :( The thing is the Timer ring is violating both our patent and our trademark of "NFC Ring" and despite us trying to offer to them that they license our patent for free and also try to support them by providing our software open source they have been unwilling to co-operate with us.
The Timer company owner uses this forum so if you want to perhaps email them and ask them to comment that would be welcome as I think discussions with how we work with competitors to provide the best user experience in the future is a valuable thing to have in the open.
Sadly the TLDR; with the Timer product is it's a cheap, poor quality copy.
Sorry this took so long, the sweetspot on my Note4 is right around here shown in the image below.
I've been blown away by how good the antenna matching is with this device actually. It picks up the rings from nearly a centimetre away without a case on and works flawlessy with a thin case on - one of those silicon/plastic wraps that have a type of covered card on, that folds over the phone. Constantly amazed by how good it is!