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iPhone 3G是第二代iPhone。型号A1241,有8或16 GB容量,和炫酷的黑色或洁白的白色塑料背面。修复比第一款iPhone更简单。需要螺丝刀、撬撬工具和吸尘工具。

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On/Off Button doesn't work! iPhone permanently on.

Hello -

I didn't see any guides tackling this particular issue: My on/off switch is not working. I'm ready to change carriers, and I need to turn my iPhone on/off a lot during jailbreak/unlock.

When I apply pressure to it, it simply doesn't turn off. I'm thinking some lever is not making contact or something?

What is this system like, and is it worth trying to fix it myself? Or should I just get a new phone?

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I had faced the same problem and I have switched off my iPhone by pressing home button along with on/off button and I worked fine

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My restart and off button wouldn’t work

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For a temporary solution to an unresponsive on/off button, squeeze the phone between your thumb and index finger on the right or left side of the receiver (ear speaker) while you press the on/off button. For some reason or another, the on/off button will work while doing the squeeze.

Give it a try; worked for me.

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The squeezing trick worked for mine- thanks Mark!!!

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Wow, had some problem and this worked for me!

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Thanks Mark for your advise I have done the Sqeeze and now at least I know how get around switching off my phone

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You're a saint dude. This worked so well I don't have to squeeze anymore. Only once then the power button worked without it.

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Still don't get it lol

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This sounds silly, but mine had the same problem, and I blew very hard through the switch, just like a straw, and it started working fine. It probably dislodged some grime. Give it a try, nothing to loose!

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Robert!

You are genius.

I have been trying for 2 years to shut my iphone 3gs off and decided to once again google for an answer.

Tried your tip blowing on the power button and it works perfectly now.

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Not a silly answer,blew into the switch and was able to turn it off,thanks

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Wow THAnk youuu ROBERT!!! I been working out at gym twice a day and I desperately rely on my music in my iPhone 4 and I dropped coffee on it and it got all messed up. My apps especially my pandora n other music would freeze on and off and I got extremely frustrated that I couldn't work out for coupe days. Something that was very important to me. WELL I TRIED WHAT YOU SAID TO BLOW INTO PHONE AND AFTER BLOWING ON ALL IPHONE HOLES LOL, it WORKEDDDDD!!!!!! Thanks Rob for the silly advice :)

Lisa

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OMG That is the only thing that worked... I can't believe it!!!!! GENIUS!!!

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* * * w or k e d ~ g r e a t * * * ! ! ! thanks !!!

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A temporary fix would be the gesture button.. Go to settings>general>accessibility>assistivetouch and turn it on. Then when the button shows on your screen you press it, then go to device and press and hold the lock screen then the power off device will show so you just slide it over to power off device. To turn the device back on you just have to plug it into the charger...

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This worked! Thank you

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Thank you!!!!!! I needed this because, I have passed the stage of squeezing. I did that for the last four months.

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I cannot find the lock screen button? Where is it please? Thanks so much. Diane

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works great !!! thanks ! ! !

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Neither pressing or blowing worked but this did. THANK YOU!

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I have the same problem. I took my switch apart and will try to clean it (mine was dropped in water by previous owner).

If that don't work, a new cable harness (including the switch) costs £4.99 on eBay UK (seller phaetondvip88 - I've bougth from them before and are very satisfied). The harness is labeled as 'Apple iPhone 3G Head phone Audio Jack Flex Cable' in their shop...

But, I'm going to try clean it first... Just need to go out and buy some 'electrical cleaning solvent' or whatever it can be named :)

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I've now replaced both the battery and the button harness I mentioned, but still no go. I can't turn the darn thing off (!!) and I have no idea what can do this other than the button itself!!

I'll try Marks idea as soon as I'm sure that the battery is fully charged.

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And if I unplugg it, it will start a reboot cycle as soon as it goes into sleep mode.

That is, as long as I'm using it, it's just fine! But after a minute (I have a 1 minute delay until sleep) it will reboot so that the Apple logo is shown for a few seconds and then reboot again. It will not recover from this cycle until I plug it in to the computer.

It's jailbroken and I've installed quite a lot of apps. I'm currently doing a complete reset and restore to original to se if that helps...

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If Your Jail broken Find SB Settings Cydia the pull down is similar to the Android's pull down and you can turn off your device from the Menu. To turn on again just pug your charger in to the Port.

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(my iphone got wet and im glad it works now) my power on off button does not work. Ive tried the hard rebot and it does give the the slide to power off BUT if i do this will i be able to hard reboot to turn it back on?

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You can turn the iPhone off in the settings..

http://www.youtube.com/watch?v=6jNRlAlFR...

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go to settings, then to general and go to accessibility and turn on assistiveTouch .

a little box should appear on your screen click on it and go to device, and click lock screen also you can hold lock screen down to shut your phone down.

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Success!!

I completely took it apart again. Removed the display assembly (but not separating this), mother board and sync connector. Cleaning everything by blowing clean, compressed air (from a aerosol can) in every nook and cranny and trying to get air in between the mother board and the RF sheilding from all directions, blowing everywhere on the back case and on and around the buttons (that where still in the case) and on all connectors (both on the mother board and on the flex cables).

Then assembled everything again, making 100% sure that all the connectors where correctly seated. Turn it back on and loo and behold! Everything works like a charm!! I can turn it on and off, I can enter DFU mode and it doesn't reboot as soon as I unplug the sync cable!! Dang, I'm a happy camper now!! :D

PS. Just in case this haden't worked, my next attemt would have been to spray/use some 'electronic cleaning solvent'.

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For a hard reboot, keep pressing the power button and the menu button ( the big round one) for several seconds!

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My process:

  1. Remove on/off button and press the metal pad to see if it works (then the button has worn out) - the metal pad sits under the button itself
  2. If metal pad does not work, check that it is making a clicking noise -> remove pad and clean the contacts (sometimes they can be dirty)
  3. If that doesnt work you need to replace the flex ribbon cable which is challenging the first time but pretty easy when you figure out the tricks

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Dear sir:

1) The main switch can be faulty. However you must test it for open or faulty with DVOM and replace

You must try to clean the contacts with c.cleaner from sirty, corroded, tight the connector very well and clean it.

2) See the diagram attached, clean the main board from corrosion, debris, and bad contacts. clean it very well.

God bless you

Ernesto Cuadra

Managua, Nicaragua

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squeezing works

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hahahaaa well done Rob you are right ....blowing works thank you!!!!

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Dear friends ,

pressing the handset near the earpiece works for me , thanks Mark ,the cause of the problem for some of you may be different ,,

Prashant

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My iPhone model is a 3G, about 5.5 years old now and the tech is likely older and I'm attempting to keep it "going" forever. I've overcome many issues with it, but it reached the point where I could not turn it off. Being a "limo driver", this really was not an issue because I never turned it "off" because I am always available to my customers. But, lately, I've switched to "Pure Talk" (this is NOT an advert, but the service is great!) and I added some services which directed me to reboot my iPhone 3G. So Here's what I did with success: I lightly moistened a cotton ball with regular rubbing alcohol and then gently passed it over the on/off button (upper right top) several times so that there was some minimal penetration into whatever was below and might have needed cleansing. Then I used a can of compressed air to blow into the button...liberally. Finally, I squeezed the upper right corner of the iPhone while simultaneously pressing the on/off button (as suggested herein), and voila !!! it worked !!! Thanks to all for your suggestions. Hope this adds something to the discovery process !!

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Squeezing worked for me

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mark is right the squeeze tchnique worked.thanks.

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What I've learned from this thread.... Squeezing and blowing usually works.

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Hy I have iPhone 6s,my buttons won’t working.And if I turn off with (power button+home button)won’t turn off just restart and restart.(I see the iPhone logo) The sound buttons are useless,and I can’t listen music because doesn’t works.No damage,no water,just I watched YouTube videos when I realized to my buttons won’t working.I tryed to install new iOS,but nothing.Someone can help in that situation?

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If audio up and down buttons aren’t working, try using the volume controls available in assistive mode. This method works well for me.

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