iPhone4 does not have a power button, how to enter the dfu

There is no power button, you can use third-party software to enter the DFU, but if you don't even have a power button, you can upgrade the system, but if you want to jailbreak, you still have to rely on the power button.

This can be accessed through the virtual case on the screen! Bother!!

3.Connect your iPhone to the computer and turn it off if iTunes pops up.

4.Then now you can run the DFU software.

5.Then type "c: dfu dfu, which does not include double quotation marks.

6.Please wait patiently to know that your iPhone appears with a white screen status.

7.Now you can start downgrading.

Apart from. DFU files, and other DFU files can be found in ibrickr ibrickr.

Manually enter the DFU mode method.

1) Turn off your phone and press and hold the power off button for 3 seconds.

2) If you can't release the power on and off button, press and hold the home button for 10 seconds at the same time (3) Release the power on and off button, and continue to press and hold the home button for 15 seconds.

Try pressing the power off button and home button at the same time for more than 10 seconds.

If there is no power at all and you need to charge it for a while, do you plug it in and it doesn't respond at all or does there be a charging icon? If the power is completely empty, there may not even be an icon that is charging...In addition, pressing the switch and home at the same time to forcibly power off for a few seconds may solve the problem (but you may have already tried, after all, you have to try close to DFU, if you haven't tried it, try again)...I don't think it's a hardware problem, check if the charger enters protected mode so that it doesn't charge the phone temporarily, if you have another iPhone, you can see if the same charger and cable can charge another iPhone, or plug the cable directly into the computer to charge for a minute or two to try....

Detailed steps to exit DFU mode:

Method 1: If you are connected to a data cable when entering DFU mode before, you only need to press and hold the [Home] button and the [Power] button at the same time and hold it for about 10 seconds.

When you hear a "Ding Dong" sound or see a white Apple logo appear on your iPhone, immediately release the [Home] button and the [Power] button.

At this time, the iPhone will automatically turn on.

The Apple logo will be displayed on the iPhone screen and will not move for a long time. Don't worry, your iPhone will definitely get out of DFU mode and boot up normally!

Method 2: Use a third-party tool to exit DFU mode.

Third-party tools can be used in the "Sync Assistant" [ Exit Recovery]. Connect your iPhone to your computer, then open the "Sync Assistant" and click [Exit Recovery] above.

Press and hold the home button and the power button at the same time for 10s

Then release the power button and press only the home button for 15s

At this time, the device is black.

But it has entered DFU mode.