A simple fix for when your iPhone won't charge
#1
Posted 20 April 2012 - 05:01 AM
#2
Posted 20 April 2012 - 05:19 AM
#4
Posted 20 April 2012 - 06:24 AM
It seems like USB 2.0 hubs have a sort of circuit breaker functionality where if you plug a shorted device into one of the ports, the entire hub shuts down until power is removed from it completely. We had an intermittently shorting digital camera USB cable around here at work that was doing this to Macs and PC's.
You have to shut the machine down completely and unplug it's power supply, on a laptop this means removing the battery as well; a simple reboot will not fix it.
#5
Posted 20 April 2012 - 07:01 AM
ErichLippert, on 20 April 2012 - 06:24 AM, said:
It seems like USB 2.0 hubs have a sort of circuit breaker functionality where if you plug a shorted device into one of the ports, the entire hub shuts down until power is removed from it completely. We had an intermittently shorting digital camera USB cable around here at work that was doing this to Macs and PC's.
You have to shut the machine down completely and unplug it's power supply, on a laptop this means removing the battery as well; a simple reboot will not fix it.
I guess with my MacBook Pro (non removable battery) I would be sol.
#6
Posted 20 April 2012 - 10:22 AM
Did I miss the part earlier in the story where Flex turned it off and on again?
"Have you tried turning it off and on again?" --Roy (from the IT Crowd)
#7
Posted 20 April 2012 - 10:31 AM
k88dad, on 20 April 2012 - 10:22 AM, said:
Did I miss the part earlier in the story where Flex turned it off and on again?
Maybe?
But Flex saw no other detritus inside the dock connector port that could explain away the issue; no lint or other debris seemed be gumming up the works. He turned off the iPhone 4S and plugged it back in. An iPhone that’s charging successfully should power back on in this situation, but Flex’s didn’t.
#8
Posted 20 April 2012 - 10:34 AM
mhawks, on 20 April 2012 - 07:01 AM, said:
ErichLippert, on 20 April 2012 - 06:24 AM, said:
It seems like USB 2.0 hubs have a sort of circuit breaker functionality where if you plug a shorted device into one of the ports, the entire hub shuts down until power is removed from it completely. We had an intermittently shorting digital camera USB cable around here at work that was doing this to Macs and PC's.
You have to shut the machine down completely and unplug it's power supply, on a laptop this means removing the battery as well; a simple reboot will not fix it.
I guess with my MacBook Pro (non removable battery) I would be sol.
Two possibilities, neither of which are strictly recommended in everyday practice...
1. Let the battery drain to zero before recharging (inconvenient, and shortens battery life)
2. Reset the SMC (the last-resort option for correcting similar issues)
Info on resetting the SMC...
http://support.apple...US&locale=en_US
#9
Posted 20 April 2012 - 10:40 AM
LexFriedman, on 20 April 2012 - 10:31 AM, said:
k88dad, on 20 April 2012 - 10:22 AM, said:
Did I miss the part earlier in the story where Flex turned it off and on again?
Maybe?
But Flex saw no other detritus inside the dock connector port that could explain away the issue; no lint or other debris seemed be gumming up the works. He turned off the iPhone 4S and plugged it back in. An iPhone that’s charging successfully should power back on in this situation, but Flex’s didn’t.
There were two paragraphs between the off and the on. Apparently, that exceeded my maximum reading comprehension distance.
#10
Posted 20 April 2012 - 12:52 PM
Flex, I hope you enjoyed your evening.
#12
Posted 20 April 2012 - 02:51 PM
#14
Posted 20 April 2012 - 11:10 PM
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