What should I do if the computer fails to connect to the mobile phone?

1. How can I brush my mobile phone if it is not connected to the computer?

Enter the recovery mode to brush the machine, and the specific steps are as follows:

1. Turn off your phone first. Press and hold the volume down+power button to start the machine and enter the recovery mode. As shown in the figure.

2. After entering the recovery mode, select the third item, and then enter yes to clear the data. As shown in the figure.

3. After clearing the data, select the fourth item in the recovery mode to clear the system cache data, and then select Yes to clear it. As shown in the figure.

4. After the data is cleared, select Item 5 to install the ZIP upgrade package from the SD card, and select rom after entering. As shown in the figure.

5. After reinstalling the system (brush machine), return to the main menu and select the option of restarting the system now to restart the mobile phone, thus completing the whole process of reinstalling the system (brush machine).

2. The phone can't connect to the computer after the brush failed.

The phone can't connect to the computer after the brush failed. The system should be lost due to brush failure. You can try the following self-help methods:

1. First, download and install the Android SDK program on the computer;

2. Connect the mobile phone and computer with USB cable, turn on the mobile phone, and the computer will automatically prompt to install the device driver. Select a custom driver location (don't let the system find the driver installation itself). Because the Android SDK program has been installed before, the driver location in this step will default to the u *** _driver subdirectory under the Android SDK installation directory, and then choose to install the driver from this directory.

3. Download the available recovery program that matches your own model, and recommend using the most commonly used clock recovery program. It is recommended that the downloaded recovery program be backed up in a specific directory;

4. Install the recovery program, click "Start"-"Run" in the lower left corner of the desktop on the computer, enter cmd, press enter to open the command prompt, enter #adb devices, and press enter. After that, if a serial number is returned, indicating that the mobile phone is connected normally, then use the cd command at the command prompt to switch to the directory where the recovery program is located, and then enter the following lines of commands, and enter a new line:

#adb restarts the bootloader (after entering the car, the mobile phone will enter the quick start mode, and then execute the following command to install the recovery program on the mobile phone).

# fastboot flash recovery-ra-magic-v2.3.1.img (if you see the following prompt after entering the car, the recovery program has been successfully installed).

Quick start and quick recovery -RA-Magic-v2.3. 1.img

Sending "Restore" (4594 KB) ... Normal.

Write' recovery' ... OK.

5. Then unplug the USB cable of the mobile phone to disconnect the connection between the mobile phone and the computer, then turn off the mobile phone and try to press the specified key to enter the recovery mode. If you can, it means that the Android phone that failed to brush the phone has been successfully resurrected.

3. The mobile phone can't be turned on or connected to the computer. How can I brush my mobile phone?

The landlord can refer to the following methods to brush the machine himself. If you are afraid of problems, you can also brush your phone in the store that sells mobile phones.

1. How to enter the quick start mode: Press and hold the back key and the power-off key in the power-off state. Please refer to the manufacturer's instructions of some machines.

2. Method of viewing SPL and radio version: display after entering the quick start mode. Some machines will not display, such as oppo find 5.

Usage of 3.3. RadioSwitchGUI: Install Java environment on PC, put mobile phone in quick start mode, connect USB cable to PC, and run WinRun.bat

4.fastboot mode, install the driver after connecting USB: I didn't find a suitable independent driver under Win7, so I installed HTC Sync for all HTC Android phones, which contained drivers. (You can also install pea pods and other software. It's easy to find ADB drivers now. )

5. Enter the recovery mode: Different mobile phones enter the recovery mode in different ways. Most mobile phones turn off and press the power button and volume to enter rec mode, but some mobile phones will be different. Please go to the forum for details.

6. After entering the recovery mode, first perform WIPE (i.e. double clearing) to erase all options. (Note: Don't worry about clearing the pictures and other files in your mobile phone, just clear the system files and system cache. ) Then enter flash zip from sdcard and open the brushes in the indicated order. For example, first ROM, then PORT, and then google patch package. (First, copy the downloaded ROM, port and Google patch file to the root directory of SD card. )

7. Back up contacts and text messages before brushing your teeth. Contacts can sync to Google. You can also find a third party software backup. For example, sweet pepper brush assistant, brush master.

Note: The specific model of mobile phone is operated differently. The above information is only general. Please follow the mobile phone official website!

Speaking of risks, every brush machine has certain risks. The key is whether you can minimize the risk. First of all, we should understand that normal brushing operation will not damage the hardware of mobile phones. Secondly, brushing the computer can solve some puzzling problems of the mobile phone, upgrade the hardware driver of the mobile phone (just like upgrading the BIOS of the computer) and add countless DIY functions to the mobile phone. However, improper brushing method may bring unnecessary troubles, such as failure to start, crash, functional failure and other consequences. Many mobile phones with windows system can easily be restored to factory settings and become all-English systems after being refreshed, which has caused thorny problems.

Especially after brushing, there is no warranty. Unless it is particularly necessary, it is best not to brush. Remember!

Of course, there are also ways to restore the warranty after brushing. The solution is to brush the official ROM again, and then use some tools (such as flashtool) to restore BL Bootloader and ROOT. Many models have official original ROM extracted by experts.

4. How to brush the mobile phone if it can't connect to the computer?

1. Android phone is not connected to a computer, so you can choose to enter recovery mode to swipe your card.

2. First of all, you need to download the card brush package suitable for the model. You can search and download it in official website or the forum. After downloading, import the card brush package into the root directory of mobile phone memory for later use.

3. Then enter the swipe mode, which is to restore the interface. Turn it off first, then press the volume and power button until the recovery interface appears.

4. Double wiping before brushing is actually to clear the data, cache and return to the appearance mode.

5. Select item 5 to install zip from sdcard.

6. Select the first zip from sdcard, and confirm to find the downloaded brush package, that is, the zip file.

7. The mobile phone will automatically execute the brushing program, and the mobile phone will automatically enter the system after the brushing is completed.

5. Why can't the mobile phone software link to the computer?

Different mobile phone line brush methods are different. The following is the process of line brush.

1. If the computer has mobile phone software such as Baidu Mobile Assistant, the mobile phone driver will be automatically installed after connecting the computer with the data cable;

2. From the online line brush tools of the corresponding brands, you can go to major mobile phone forums, such as Samsung's odin tool, Xiaomi's MIFLASH tool, MTK's FLASH tool on the brush platform, etc., and download it, install it, and then open it;

3. The mobile phone enters the official brushing mode. For example, when Samsung is turned off, press and hold the +home+ power button at the same time. When the screen interface lights up, release your finger, and then press the volume to enter Samsung's coal mining mode. Detailed input methods can be searched: model+method of entering line brush mode;

4. Then connect the data cable to the computer, and the software will automatically identify it, usually with a prompt or a port;

5. Then the computer will load the official line brush package into the software, and click OK to start brushing;

6. After brushing, it will usually automatically restart and then enter the system;

7. Note: No matter what model, don't operate the mobile phone during brushing, and keep sufficient power before brushing. If the power is cut off in the middle and the data is disconnected from the network, it will lead to the possibility that the mobile phone will become brick.