NFC doesn't work when screen is off

[smart74]

Good evening. Bought for my family for the third sony xperia z c6603. And when the third set of received keychains for nfc upset because they do not work if the display or not display the unlocked even if the mode stamina. Meaning with them if you want to phone unlock, or if you put your phone in a holster in the car. Still dipping. Please create an update to correct this problem. Thank you very much!

Topic edited by Rickard

[Rickard]

I will forward your feedback but i suspect that NFC is supposed to be disabled when screen is off or locked for security reasons.

[cool_raoul]

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@Rickard wrote:

t i suspect that NFC is supposed to be disabled when screen is off or locked for security reasons.

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I confirm: it's the same on every NFC compatible phone.

Allowing NFC when screen locked require specifically hacked drivers, thus a non official firmware.

This will void your warranty.

[smart74]

I agree. That make for sequirity reason.  But i think better make when switch on the NFC phone ask about sequirity. If user afraid for his mobile.He don`t switch on this function. Some another people don`t care work or not work NFC. I mean when switch on nfc that work normally. But if need work all time NFC made additional button in NFC setting with warning.