The Apple phone has not backed up messages for a long time, and then the phone has been white screen

A jailbroken phone cannot erase all data. Otherwise, it will be a white apple.

You can only DFU upgrade the system, and it is upgraded to the latest system, and everything on your original phone is gone.

Step 1. **The system package of the corresponding system corresponding to the mobile phone model, it is possible to use assistants such as PP assistant. Try to fully charge the phone (at least 50%), which can solve some of the problem of battery display error.

Second, the flashing steps.

1. The mobile phone enters DFU mode, steps: when the phone is turned on, connect it with the computer with a data cable. Press and hold the power off button for 2 seconds; Then, press and hold the power off button and the home button at the same time for 8 10 seconds; Finally, keep holding the home button for 15 seconds.

2. Check if you have entered DFU mode correctly: In DFU mode, the phone is black. If it doesn't work, redo the first step.

3. After entering the DFU state, iTunes checks that the iPhone is in a recovery state, you can see that there is a recovery button, at this time you hold down the shift key of the keyboard, and then click the left mouse button"Recovery", a window appears, find the path of the firmware, and then double-click your ** good firmware, and then iTunes will automatically recover, don't pull the data cable during the process, don't move your iPhone, just wait quietly.

4. A window will pop up after iTunes recovery is completed"Your iPhone has been restored, and the window will automatically close after 10 seconds", close this window, and then unplug the data cable, do not use the computer to activate the iPhone, activate the system on the mobile phone will be purer.

If the screen color of the mobile phone is abnormal, such as black screen, splash screen, flower screen, white screen, red screen, etc., it is recommended to:

1.It is recommended to restart the phone to try: Press and hold the power button and the down volume button at the same time for more than 7 seconds to restart the device;

3.If it comes with system software, it is recommended to update the system version of the mobile phone to try: please go to Settings - About the phone (about the device) - Software update (system update) - Update (please back up the data in the device before upgrading).

If the problem persists, it is recommended to bring the purchase invoice, warranty card and mobile phone to the local mobile phone purchase office for repair or to a nearby mobile phone repair shop for repair.

How to view the data backed up by iTunes.

First of all, we need to make sure that we have used iTunes to make a backup on our computer, so that we can find the corresponding backup file on our computer.

This is because in many cases, the files of the system disk are hidden, and under the win10 system, we have to show the system files first. Click on the "View" option.

Once you see "Hidden Items", put a checkmark in front of it, and then you can display the system files.

Re-displaying the hidden folder is still somewhat different from the folder displayed in the normal state, and it seems to be covered with a layer of fog.

The phone's system crashes when the screen is white, and it can't communicate with iTunes on the computer normally, and of course, it can't back up the data, so at least this connection, iTunes can't generate backups.

If you want to keep the data in the machine in this case, then you can't restore it directly with iTunes, and you may still have hope for using Aisi Assistant to keep user data to flash the machine, but now you can restore it directly, then there is nothing.

Connect the phone to the data cable, iTunes shows that the connection is successful, you also need to select the backup option on the computer iTunes software to back up successfully.

The phone is paralyzed, and it doesn't know that it's a mobile phone, so it can't communicate with the computer normally, and it won't transmit data to the computer. There is no need to doubt it, no is nothing. If there is important data, go to the real master to disassemble and retrieve it, if it is not important or generally important, then don't dwell on it.

But but: if you're bound to open through various "cloud spaces", you might as well log in and take a look.

Often, it's just once. There may be a setup issue, or a software issue. It's best to take a screenshot and see it.

Can you tell us what the problem was?

Pull out the memory card to try,You can also press the * number key, the number 3 key, the dial key,Add the boot button don't let go, it's worth 1 minute later,Call your friend to help press,No, take it to the mobile phone store to write information,If you don't write well, the font library is broken,Don't need to repair it and throw it to him。

The white screen is because there are too many programs running.

It's the same as a computer crash

This is usually normal.

The same goes for my machine.

A white screen is normal for a while, and Nokia boots up a bit slowly.

The same goes for my n78.

You should make it clear what model Nokia is. Whether it is a white screen for normal use or a fall or water. As a rule.

If it is a slider, the white screen is caused by the wiring.

A new cable needs to be replaced.

If you have a straight machine, you need to change the display screen.

This problem with Nokia mobile phones is very common and common.

It can be a system problem, the upgrade is not in the system, or to detect it, it can be a conflict in the mobile phone software,

Soft Compartment Standby Status Input * Hard Chrome, Dial Key, 3, * Press and hold at the same time, then press the Power On button until the word nokia appears, just let go, ., .,To keep the battery charged.

After the white screen, it's normal again, which is normal.

There is also a virus in your phone, which causes the software to be confused.

If you are licensed and have a formal invoice, you still have a mobile phone, and the problem with your mobile phone is really serious, it is estimated that the broken machine was bought back by you, and you should change it to make it clear that there should be no big problem with it, and I wish you good luck.

It is recommended that you take it to flash the phone, it is only thirty yuan to flash the machine once, Nokia mobile phone hard grid does great damage to the hardware of the mobile phone, hard grid method: turn off the phone first, press and hold the "dial key", "* key and "3" key while rebooting, until the word "nokia" appears on the screen (the new v31 version will not be displayed), this process can not release any button, wait a few seconds until the "formating...... appears", then you can release the key. 3 After 5 minutes, the system format is completed, the phone will automatically restart and enter the standby screen, and then re-enter the phone time.

You can force restart by pressing and holding the home button and the power off button at the same time, and then let go when the phone lights up. If the phone returns to normal after a force restart, then it can be used as usual. If the Apple logo status still appears on the white screen, it may be that the updated system is too high and does not support the operation of the phone.

Apple Upgrade White Screen Solution:

1. Connect your iPhone to your computer and open iTunes.

3. If you have completed the backup before the update, you can restore the original backup stored in iTunes after selecting the device. If you have not previously backed up, you can also make a backup directly.

However, if you still see the "Swipe Screen Update" screen after restoring the backup, you will have to choose to restore the device. If there is no display device on iTunes, press and hold the power button and the home button at the same time for about 10 seconds until the device restarts and appears on iTunes, then press "Resume" and confirm that the device is set to a new device.

If you find iTunes a bit annoying, you can also use your own flash.

It's usually just a matter of waiting for it to be updated.

If the screen color of the mobile phone is abnormal, such as black screen, splash screen, flower screen, white screen, red screen, etc., it is recommended to:

1.It is recommended to restart the phone to try: Press and hold the power button and the down volume button at the same time for more than 7 seconds to restart the device;

3.If it comes with the system software, it is recommended to try the new mobile phone system version of Hu Mengting: please go to Settings - About the phone (about the device) - Software update (system update) - Update (please back up the data in the device before upgrading).

If the problem persists, it is recommended to bring the purchase invoice, warranty card and mobile phone to the local mobile phone pants hidden purchase office in Zhiqing for repair or to a nearby mobile phone repair shop for repair.