The phone won t turn on, and I m going to use it anymore, and there s no way to copy the files in th

First of all, go to search for the corresponding ROM according to the model, if you can't find it, use the flash master to find,** to the card, after that, when the indicator light is green when you turn on, press the "volume up button + power button", when the indicator light is green when you turn on, press "Volume up button + power button + home", use recovery to brush the ROM; Please back up your contacts, text messages, software, etc. The software is recommended to be backed up with flash master software; Copy the "OK ROM" to the memory card root; When the indicator light turns on green, press the "Volume Up Button" to enter recovery mode; Select [wipedata factoryreset] (wipe data to factory reset) and then select [yes--deletealluserdata] (yes--delete all user data); Go back to the main interface, select [wipecachepartition] and then select [yes--wipecache]. Go back to the main interface, select [InstallZipfromSDCARD] (select Update from SD card) and then select; [choosezipfromsdcard] (select the upgrade package from the SD card to update), and then select the ROM package you put in the memory card; Select Yes - Install; Wait for the flashing to be completed, return to the upper menu, and finally select [rebootsystemnow]-[no] (reboot system) The first flash restart is relatively long, please wait patiently, generally it will not take more than 10 minutes, "double clearing", "double wipe" and other nouns refer to the above steps. Under normal circumstances, the ROM package must be double-cleared, while the vast majority of others do not need to be double-cleared.

Connect to a computer.

There is a way to reflash the firmware without clearing the personal data to see if it works,But I don't know if this method is effective on the original Android system,If there is really something important, it is recommended to go to the after-sales service to ask clearly,Don't flash the machine,Otherwise, it's gone。 Online methods may not always get you back.

If the vivo phone is unusable and you want to export the data, the premise is that your data has been backed up in the cloud service, and you can use the vivo mobile assistant on the computer to log in to the vivo account to view it. If you don't have a backup, you can't recover your data.

You can't export it, so you need to repair it first, turn it on, and you can export it.

Check if your phone is out of battery and see if it can be turned on when plugged in to the charger. Or, connect a cable to your computer and see if it can recognize your phone.

If neither of these methods work, then the following method is available:

First, the battery is not good, (one is bad contact, and the other is that the battery is broken) The second is that the main control of the mobile phone is broken, which is called the mobile phone CPU. You check the battery yourself first, if it's not a problem with the battery, then the CPU is broken. If the phone is often dropped, the CPU can easily break.

The landlord can try: Is your battery charged with a universal charger or you can go to the place where the mobile phone is repaired to test it No money is also very fast.

If it is during the warranty period, you can take the warranty, or spend some money to repair the electrical.

If the phone is often dropped inadvertently. There is a problem with what parts are broken or in contact.

I can't turn it on, and how can I export the internal storage.

It stands to reason that if it is not a flash, the stored things can still be taken out.

We recommend trying the following:

Unplug the battery and reinstall it to see if it can turn on normally.

Whether it can enter recovery. How to enter recovery: In the shutdown state, first press and hold the "volume up button" and then press and hold the "shutdown button", and let go when the boot screen appears, you can enter recovery.

If you can enter Recovery, switch the system under Recovery and back up your data, if you can't succeed, you need to erase all your data (then the communication and chat recording, text messages, mobile phone applications, etc. will disappear).

Whether it can enter the Xiang grinding into fastboot. How to enter fastboot: In the shutdown state, first press and hold the "meter key", then press and hold the "volume down button" and then press and hold the "shutdown button", and let go when the boot screen appears, you can enter fastboot.

Connect the mobile phone to the computer and flash a complete system package with the method of miflash.

If this is still the case, you can enter the post-sales process to detect the failure of the mobile phone.

If the mobile phone cannot enter the system page after booting up, and the screen is stuck or frozen, it is recommended to:

1.Please press and hold the power button and the down volume button at the same time for more than 7 seconds to restart the device; If it is a mobile phone with a removable battery, please press and hold the power button for 8-10 seconds to restart the machine, if it does not work, please turn off the battery and reinsert it.

2.If the problem persists after restarting the machine, it is recommended that you bring the purchase receipt, repair card, and machine to the Samsung service center for inspection. Dawn.

Note: If the machine can be turned on normally after following step 1, it is recommended that you optimize your phone as follows:

1.Settings - About Phone - System Update - Update, check if there is a system update push, upgrade the phone to the latest version.

2.If the phone supports smart manager or memory manager, it is recommended to close the application that does not need to be triggered to run (it is recommended to set the self-start of instant messaging apps such as WeChat and QQ to "on").

1.Connect the mobile phone and the computer through the data cable, and after the connection is successful, the computer desktop will pop up the mobile device page - click"Turn on your device to view the files"(Or go to Computer - Find Phone Device icon). Take copying from your phone to your computer as an example, open your phone device - dcim folder and copy and paste your phone from your phone to your computer to save it.

2.If the mobile device page does not pop up, please scroll down the top curtain of the mobile phone screen - click"Connected as a **device"- Tick"**Equipment (MTP)."。

4.Then follow step 1 again.

The phone can be turned on normally: you can **Samsung KIES software such as Hu S Replacement Assistant to backup contacts and other files through the computer air answer (different models of mobile phones use different PC suites), you can also use other third-party mobile phone assistant software backup attempts.

The phone cannot be turned on: Please bring the purchase invoice and repair card to the nearest Samsung service center, and the engineer will test the machine on site to determine whether the data can be backed up. Samsung Service Center Address Information Customer Service**, you can inquire through the following methods:

1. The boot line is abnormal: use an external power supply to supply power to the mobile phone, use the electric meter to detect whether the indication has changed, if there is no change, it is likely that the boot line is broken or the boot button is not in good contact.

2. The power supply circuit of the battery is abnormal: use the external interface to supply power to the mobile phone, see if it returns to normal when it is turned on, if it is normal, it is determined that the power supply circuit of the mobile phone is abnormal.

3. The IC of the mobile phone power supply is abnormal: test it on the test point of the peripheral circuit of the power supply IC according to the circuit schematic diagram to see whether the test value is normal.

4. The system clock and reset of the mobile phone are abnormal: you can use the dual total oscilloscope to detect the CPU power supply of the mobile phone to check whether the waveform in the reset is correct.

5. Problems with logic circuits: that is, faults in the circuit version of mobile phones, which can generally be solved by repair welding.

6. Software conflict: The installed software does not match the system of the mobile phone, which may also cause the mobile phone to fail to boot, you can connect the mobile phone to the computer to delete the program.

7. If it is a copycat mobile phone, then I estimate that it can't be turned on because the chip inside is burned, or some of the small parts inside are loose, but this situation will only appear if you drop it, the chip burns may be because you charge it for too long, burn the chip, if the battery has electricity, that is these aspects, if it is a brand-name mobile phone, such as Nokia, Motorola. These situations are rare, unless it is artificial, if it is a brand-name smartphone, and there is no improper use, it is a software problem, it may be a state chaos which system crashes, or because of mobile phone poisoning caused by software damage, generally this can only go to the maintenance office, however, I think the biggest possibility is caused by static electricity, it is recommended that you do not open the blind repair, or go to the repair office!