Is an iPhone really off when it's off?
Thread Starter
Joined: Nov 1999
Posts: 63
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From: UK
Is an iPhone really off when it's off?
I have a relatively new iPhone 3GS which appears not always to be off after it has been switched off.
During the past two months there have been a number of occasions when I have switched the phone off before a flight - I depress the OFF button, slide the Power Off slide, watch the whirly wheel spin and fade and then press the HOME button to confirm that the phone is indeed dead.
On some occasions, on switching the phone on again after arrival, I have found it to already be on (no boot-up cycle); on two occasions I have received a text message whilst taxiing within minutes of switch-off and on one occasion I received a text message at cruise altitude somewhere well north of Moscow.
I have not managed to replicate this outside an aircraft environment.
Has anyone any similar experience or rational explanation for this behaviour?
During the past two months there have been a number of occasions when I have switched the phone off before a flight - I depress the OFF button, slide the Power Off slide, watch the whirly wheel spin and fade and then press the HOME button to confirm that the phone is indeed dead.
On some occasions, on switching the phone on again after arrival, I have found it to already be on (no boot-up cycle); on two occasions I have received a text message whilst taxiing within minutes of switch-off and on one occasion I received a text message at cruise altitude somewhere well north of Moscow.
I have not managed to replicate this outside an aircraft environment.
Has anyone any similar experience or rational explanation for this behaviour?
Joined: Jan 2008
Posts: 1
Likes: 0
From: Portland, OR
I have two iphone devices and I have not noticed this behavior. To get them
to turn on one must hold the on switch for a significant time to get them to
boot.
Is there a chance you have the device in a case that presses on the
master button?
to turn on one must hold the on switch for a significant time to get them to
boot.
Is there a chance you have the device in a case that presses on the
master button?
Joined: May 2001
Posts: 1,909
Likes: 24
From: England
The iPhone goes into hibernate mode rather than a full shutdown. Thus when powering up, it simply loads it's previous state from flash memory into working memory - Just like using the hibernate feature on a PC/laptop. It will be much quicker but doesn't help if you want to clear out the gremlins. It's another example of Apple deciding what's best for you no matter what it is you think you are doing.
Having said that, what you are describing with the text messages is a little weird.
Having said that, what you are describing with the text messages is a little weird.
Joined: Feb 2009
Posts: 354
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From: Jungles of SW London
Will this apply to a Kindle too? That does not power off in the accepted sense, merely power down or sleep/wake as Kindle put it. The wifi is switched by software.
I am more likely now to be reading a kindle on an aeroplane, than a real book. After all, I can take a barrow full of books and carry it in my pocket, if necesasary.
Roger.
I am more likely now to be reading a kindle on an aeroplane, than a real book. After all, I can take a barrow full of books and carry it in my pocket, if necesasary.
Roger.
Joined: May 2001
Posts: 1,909
Likes: 24
From: England
The cabin crew or their training manuals need to be updated then. I can't remember the last time I flew with an airline which stated that Flight Mode wasn't OK.
Flight mode switches off any feature that transmits or receives using a radio signal (Wi-Fi, Bluetooth, GSM/3G/GPRS/Edge, GPS). In the case of smart phones which mostly double up as music players in the air, you cannot force people to turn them off simply because they have an off button and look like a phones!
Flight mode switches off any feature that transmits or receives using a radio signal (Wi-Fi, Bluetooth, GSM/3G/GPRS/Edge, GPS). In the case of smart phones which mostly double up as music players in the air, you cannot force people to turn them off simply because they have an off button and look like a phones!
Joined: Mar 2001
Posts: 4,563
Likes: 35
From: I wouldn't know.
My company allows flight mode during the whole flight for any kind of smartphone, pda or similar device, which covers the iPhone or even the aircraft mobile phone. Therefore it is fine to use just that. As FE Hoppy said it needs active user action to power on WLAN, it is off by default when switching to flight mode.
I always put my kindle just to the normal sleep mode, not completely off, no interference actually if you switched off the network services (3g only in my case) since the device is basicly doing nothing.
I always put my kindle just to the normal sleep mode, not completely off, no interference actually if you switched off the network services (3g only in my case) since the device is basicly doing nothing.
Joined: Jan 2008
Posts: 103
Likes: 0
From: Norfolk
iPhone
Hi,
If (unlikely from what you describe) there's absolutely no way the device is pressed against something that could power it up then you have a faulty iPhone. As a veteran of faulty iProducts I am sadly familiar with the frailties of anything made by Apple. Incidentally, the whirling kaleidoscope is known as a SPOD (Spinning Pizza of Death) in the trade as it usually signals expensive grief or at the very least a need to reboot.
You mention your 'phone is fairly new so it should be covered by at the very least the statutory guarantee. Try and steer clear of going to an Apple outlet and the comedy 'Genius Bar'.
Good luck.
Marc
If (unlikely from what you describe) there's absolutely no way the device is pressed against something that could power it up then you have a faulty iPhone. As a veteran of faulty iProducts I am sadly familiar with the frailties of anything made by Apple. Incidentally, the whirling kaleidoscope is known as a SPOD (Spinning Pizza of Death) in the trade as it usually signals expensive grief or at the very least a need to reboot.
You mention your 'phone is fairly new so it should be covered by at the very least the statutory guarantee. Try and steer clear of going to an Apple outlet and the comedy 'Genius Bar'.
Good luck.
Marc
Joined: Aug 2007
Posts: 1,429
Likes: 1
From: Mare Nostrum
If you hold down the power button and the home button at the same time for about 5 seconds until the screen goes black, it will be really shut off. If you just use the power button and swipe, it goes into the hibernate mode. Even in this mode it uses battery power, and your phone can be tracked/exploited if the sim card is still in.
Joined: Apr 2001
Posts: 370
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From: UK
We're about to have technology fitted to the a/c to allow mobiles and wifi to be used in flight. I therefore have serious doubts that any phones on/in use whilst an a/c is airborne makes bu@@er all difference to the a/c or its systems.
Joined: Jan 2008
Posts: 18
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From: 8degN
I can't remember the last time I flew with an airline which stated that Flight Mode wasn't OK.
Joined: Jun 2002
Posts: 2,108
Likes: 95
From: Geneva, Switzerland
I had multiple occurrences of Easyjet flight attendants insisting the the phone be completely turned off during take off and landing. Most of the time they satisfied with flight mode, though.