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[Q] Stuck in Flight mode due to of NFC ring Unlock app

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(Last edited by SvanGool; 1st June 2014 at 11:51 AM.) Reason: Adding item to list
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Join Date: Sep 2012
Question [Q] Stuck in Flight mode due to of NFC ring Unlock app

I installed the NFC Ring Unlock application from McLear on the EZ2 tablet, which seemed to function well with my NFC ring.
I did one thing differently, because I don't like to give my Google master password to a 3-party app , I used an app password specifically for the NFC ring, which I considered to be one-time and didn't write it down
Then I had to fly and put the device in flight mode and powered it off some time later.

Now I get the NFC Ring Unlock screen in flight mode when I power up the device, but I can't get the unlock screen to work (NFC is also switched off in flight mode, didn't realise that and the Google authentication is also not working) and I can't get out of flight mode!

What I tried already:
  • Resetting the device by voulume-up/power, red button in SD-card and PC-companion connection.
  • Trying to hit the "normal" unlock screen which appears for a sub-second period.
  • Contact McLear, but they are flooded at the moment, because of the roll-out of their new products.
But neither of this works because they all depend on unlocking the device first.

Any advice?
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If your device is unlocked and you have USB debugging enabled, you should be able to deinstall the App with ADB (Adcvanced Debug Bridge).

I guess that with the locked original Sony Bootloader, this doesn't work, though.
Thanks Meter 20
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Join Date: Nov 2010
You could do a remote wipe with play device management:

If Sony's software detect it when you connect it to computer, you might also have some options there. I am using Mac and only see repair device ,under the Xperia menu, as a potential solution.
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Hey Svan, damn it sucks you are getting stuck by this! Sorry!

1. Did you try posting on the NFC Ring forum?

RE "3-party app" our app never stores your details, we use the Google provided Google Auth libraries to handle the authentication process. I can personally guarantee and promise at no point do we store or use your username/pass, we just get a success/failure callback from them and act accordingly.

2. Is it possible you can use your Google Auth or is your work-around preventing you from doing this?

We're actually just beta testing an updated version of the app that forces users to enter a pin code to handle circumstances such as this. Flight mode and two-form factor auth have been an issue for us so we're taking pro-active steps to address it ASAP This doesn't help you though ;(

3. As BabelHuber asked, do you have debug mode available? If so a simple adb uninstall of the app will get you moving again.

Sorry about the delay through support, I just took another team member on today to help with the backlog, he starts tomorrow so hopefully things will move faster!

Source: I'm the inventor of the NFC Ring
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