Can we put iphone 3gs into DFU mode with out power button

My Iphone 3gs power button not working, so is there any way I can put my iphone into DFU mode..

No - you can't put the phone in recovery mode or DFU mode without a functioning sleep/wake (power) button.
Note that DFU mode is only useful when hacking the phone. Recovery mode is what you want for troubleshooting.
http://www.ihackintosh.com/2009/06/recovery-mode-and-dfu-mode/

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How do I put my iPhone 5 into recovery mode if my power button doesn't work?

I would like to downgrade my firmware but my power button does not work and I can't get into DFU mode.

There is no Apple method to downgrade iOS

I put my ipad into dfu mode, by mistake, and now have to restore it. Can I redownload all the paid apps (And Books) on it for free?

This was a TOTAL mistake. I had no idea what I was doing. I put my iPad into DFU mode, and now have to restore it. (That didnt end well, knowing I had just bought a bunch of books and apps) I want to know, after I restore my iPad can I go into the app store or iBooks and redownload the books and apps I had originaly payed for? Thanks for the help

Yes, App Store and iBooks have a "Purchased" tab, allowing you to re-download at no additional charge.
But that may not be necessary if you restore from a backup. You might be able to get all of your content back from the restore.

I put my iPad into DFU mode without thinking much about it. I didn't realize I would lose everything. Is there a way to get everything back the way I used to have it before I tried recovering my iPad?

A couple of days ago my iPad died, so I plugged it in to charge. It went into a rebooting loop, and when I looked up how to fix this, I saw that I can put my iPad into DFU mode to fix certain things like this. I did, not thinking much about it because l had seen both of my parents get new phones and everything was slowly but surely on their phone the way it was on their old phones.
I thought that even though I agreed to the iPad being put back into factory settings, I thought I would be able to get everything back the way it used to be just by logging into iCloud when setting it up. I was wrong. This is a school iPad, so all of my notes are gone. The only things that were backed up were my photos. All the games, social media, etc. that I had downloaded prior were gone. Even my notes.
Is there a way I can get everything back to the way it used to be, or was agreeing to put the iPad back into factory settings the wrong thing to do? Was it a mistake to take it upon myself to fix my iPad in this restarting loop? I would really like to get everything back, especially my school notes.

The only way to get everything back is by restoring a backup. If you didn't have a backup, there is nothing that you can do to recover your lost documents and your notes. If you have a backup restore the backup in order to recover your data. Purchased apps can always be downloaded again as long as you use the same Apple ID that you bought them with, but data can only be recovered from a backup or if you have copies of the documents and notes on a computer.
Back up and restore your iPhone, iPad, or iPod touch using iCloud or iTunes - Apple Support

How can i put my iphone in to dfu mode if my home button is broken i am on ios 7

i cannot figure out how to put my iphone in dfu mode with a broken home button on ios 7

Then you use this support document to restore it. http://support.apple.com/kb/ht1212 Then, if the device is on iOS 7, you will need his Apple ID and password for Activation Lock. If he cannot remember that, there is nothing you can do to change that. DFU mode will not correct that. It will be locked and cannot be activated, period.

How can I put my system into StandBy Mode?

Hi
I am not able to put my system into stanby mode.
How can I do that?

Hi
As Ivan said you can use these two options.
Furthermore I would recommend checking the settings in the Toshiba power saver (if is installed)
Possibly you have to activate this option before using.

Can't get iPhone 3GS to recovery mode

I have an old iPhone that I haven't used for over a year. Naturally I couldn't remember the passcode. I tried all the versions of getting it to Recovery mode but none of those worked. When pressing the home and sleep buttons the slider never went off. Likewise when starting the phone, pressing the home while connecting the cable never got me to Recovery. Nor did the DFU mode instructions. Now I've ran out of attempts in unlocking the phone, it just tells me to connect the phone to iTunes. Well, surprise, it still won't connect. It gives me the "can not connect to iTunes. Cancel - Try again"-pop-up every time.
I'm wondering if that is because the iTunes is a much newer version than the phone? Or is my home button broken? Pressing the home button doesn't wake the phone up from sleep, should it. My iPhone 5 it does but I can't remember what the functionality was in 3GS.
Any suggestions? Should I try to find an older version of iTunes or what. I tried it with both a Macbook and a PC, same response on both.
Very grateful for any suggestions, my son really (I mean REALLY!) would like to get his hands on the phone...
Best Regards,
Olli

Pressing the home button should wake up the display if the phone is powered on. It sounds to me like the home button is toast on your phone if it refuses to enter recovery mode.
You can bring it to an Apple store and they can confirm that for you if you'd like.
~Lyssa

How can i put my ipod into recovery mode i've tried to put it in recovery mode but it won't help me

i've turned off my ipod and i held the home button and plugged in the USB but nothing happened

Placing your device into recovery (DFU) mode:
Follow these steps to place your iOS device into recovery mode. If your iOS device is already in recovery mode, you can proceed immediately to step 6.
   1. Disconnect the USB cable from the iPhone, iPad, or iPod touch, but leave the
       other end of the cable connected to your computer's USB port.
   2. Turn off the device: Press and hold the Sleep/Wake button for a few seconds
       until the red slider appears, then slide the slider. Wait for the device to turn off.
              * If you cannot turn off the device using the slider, press and hold the
                Sleep/Wake and Home buttons at the same time. When the device turns off,
                release the Sleep/Wake and Home buttons.
3. While pressing and holding the Home button, reconnect the USB cable to the
       device. The device should turn on. Note: If you see the battery charge warning,
       let the device charge for at least ten minutes to ensure that the battery has some
       charge, and then start with step 2 again.
4. Continue holding the Home button until you see the "Connect to iTunes" screen.
       When this screen appears you can release the Home button:
5. If necessary, open iTunes. You should see the following "recovery mode" alert:
6. Use iTunes to restore the device.
If you don't see the "Connect to iTunes" screen, try these steps again. If you see the "Connect to iTunes" screen but the device does not appear in iTunes, see this article and its related links.
Additional Information:
Note: When using recovery mode, you can only restore the device. All user content on the device will be erased, but if you had previously synced with iTunes on this computer, you can restore from a previous backup. See this article for more information.

When I put my ipod into DFU mode, does it lose all of the photos and songs?

Just wondering.

No, all of your data will stay on the iPod Touch
I have put my iPod Touch 2nd gen in and out of DFU mode at least 10 times.

I Dropped my iPhone 3GS into water. It will power up, but shuts down after a short time. Can anyone help me back up my contacts, pics, calendar?

I need help backing up info from my water damaged iPhone. It works on and off so I need to get my calendar, etc while it still works!

If it will not stay powered on long enough to complete a sync or backup, there's really nothing you can do. It sounds like it suffered physical damage (the water likely caused shorts which have damaged circuitry). If it has not fully dried out and you keep trying to power it on, you risk merely doing even further damage.
There's no magiacal fix for this, sorry. Unless you can get it to power on long enough to run a sync/backup session, you are just out of luck.

HELP, i was used the beta version for ios 7, and i put my phone into dfu mode. And now, it won't activate. PLEASE HELP!?!?!

Le question basically.

Bummer for you then, huh? Guess that's what you get for using pirated software. You've forfeited your abilit to get assistance on this forum by pirating Apple's software.
Look elsewhere on the internet, or pay $99 to join as a developer and then you can get access to the forum that might have your answer.

How can i copy iphone contacts to my sim with out cydia

Hey,
I have a factory unlocked iphone 4 16 gb. I would like to know as to how can I copy all the iphone contacts to my sim..

the iPhone sim does not carry any data, contacts or anything else.
and discussions of "other "methods is banned by the Ts&Cs you agreed to on joining this Forum

Restore iphone 4 in DFU mode

my friend put my iphone4 into DFU mode and now itunes give me the error report 3194 if I want to restore it what can i do please help me

to restore make sure you have disabled passcode and disabled 'find my phone'. You dont have to enter dfu mode to restore

How to put iPod 5G into retail mode

How can I put iPod 5G INTO RETAIL MODE AS I RUN A PHONE SHOP

What do you mean by retail mode?
Apple uses their own custom iOS mods to have iOS devices for demonstration in their stores.
You can do some restrictions of use of the iOS device by using Guided Access. See:
http://support.apple.com/kb/ht5509

FIXED (for me at least): iPhone 3gs will not sync with Gateway NV79

I’ve spent months trying to fix this miserable problem with getting my iPhone 3gs to sync with my new Gateway NV79. Gateway will not help. Their technical support is genuinely worthless. Microsoft blames Apple and Apple blames Gateway.
My old iPod Nano syncs to my Gateway NV79 without a problem. I’ve tried all of the proposed fixes but other posters with no success.
But I do believe I’ve discovered a real fix (for me at least). Here’s my setup:
• Gateway NV79 running Windows 7 64 bit edition
• iTunes 10
• iPhone 3gs running OS 4.02
The USB ports needs tweaking to get the iPhone 3gs to sync to the Gateway NV79. Follow these steps without your iPhone 3gs connected to the Gateway NV79:
Step 1: Go to Control Panel
1. Open Control Panel
2. Click Hardware & Sound
3. Click Power Options
4. Make sure Balanced is selected and click Change Plan Settings
5. Click Change advanced power settings
6. Expand USB Settings
7. Expand USB selective suspend setting
8. Change On Battery setting to Disabled.
9. Change Plugged in setting to Disabled
10. Click OK
Step 2: Go to Windows Explorer
1. Open Windows Explorer
2. Right-Click Computer (not your computer name)
3. Click Properties
4. Click Device Manager
5. Expand Universal Serial Bus Controllers
6. Right-click first Generic USB Hub
7. Click Properties
8. Click Power Management
9. Uncheck Allow the computer to turn off this device to save power
10. Click OK
11. Right-click second Generic USB Hub
12. Click Properties
13. Click Power Management
14. Uncheck Allow the computer to turn off this device to save power
15. Click OK
16. Restart your computer
After your computer restarts, login and connect your iPhone.
You must complete both steps. Step 1 is required for Step 2 to stick.
There are a few things that may happen. iTunes may start syncing immediately and fail with an error. Don’t worry. If the sync fails the first time, restart the computer with the iPhone still connected. Now, iTunes will either take you to setup screen to connect your iPhone or the sync may restart. In my case, the setup screen came up and I DID NOT CHOOSE TO RESTORE. Pick the first option to add your iPhone. The sync will restart and may or may not finish. Don’t worry, if the sync fails, restart your computer again with the iPhone still connected and this time the sync will work.
Here’s the problem: the iPhone 3gs will not sync with the power management enabled for the USB ports on the Gateway NV79.
Good luck.

If you cannot update your computer, you will not be able to sync your phone. The requirements are:
Mac system requirements
Mac computer with USB 2.0 port
Mac OS X v10.5.8 or later
iTunes 10.1 or later (free download from www.itunes.com/download)
iTunes Store account
Internet access

Can we put iphone 3gs into DFU mode with out power button

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