[belarkan]

Hi all,

This morning when i hold my passport to shut the alarm off, i noticed (again) a red blinking light, on the top left side of the phone, left to the BlackBerry brand mark. It happened already on my Z10, and i could swear also on my 9900.
This light is extremly tenuous, and the blink extremly fast, it seems to me related with movement sensors, for it happens only when i move the phone.
Once my eyes are accustomed to daylight, i've never been able to see it again.

Anyone knows what is its purpose?

[nucks26]

It's part of the cellular band. You'll see it blink when you dial out for a phone call

Posted via CB10 for Red BlackBerry Passport

[Taigatrommel]

It is the proximity sensor, you'll notice it during calls for example, where it constantly checks whether your phone is up on your ear or not.

Posted via CB10

[FrankIAm]

Proximity sensor.