A ​​broken smartphone with a non-working screen, a broken sensor or a frozen system is not a death sentence for your data. Even if the device does not respond to touches, does not turn on, or reboots cyclically, the chances of retrieving photos, contacts or documents through USB connection to a computer remain high. The main thing is to correctly determine the type of failure and choose the appropriate method.

In this article we will analyze 5 working methods connecting a faulty Androiddevice to a PC: from standard mode MTP (if the phone somehow turns on) before using engineering protocols like ADB or Fastboot for completely “dead” devices. We will pay special attention to bypassing screen locking via USB debugging the only legal method of accessing data on a locked device without losing information.

Important: the methods differ for different types of failures. For example, if you only the sensor is broken, but the screen works - one algorithm will do, but if the phone is does not turn on at all , a completely different one. We have structured the instructions by symptoms so that you can quickly find a solution to your situation.

1. Diagnosis of failure: which connection method to choose?

Before connecting the phone to the computer, determine exact nature of the malfunction. This will determine whether the USB connection will work and what tools you will need. Below is a table with common symptoms and recommended methods.

Symptom of failure Probable cause Recommended connection method Chances of success
The screen does not respond to touches, but there is an image The touch layer is damaged USB mouse + OTG or ADB 90%
The phone turns on, but the screen is black or flashing Problems with the display cable or backlight ADB + blind commands 70%
The device is stuck on the logo or reboots cyclically Damaged firmware (bootloop) Fastboot or Recovery Mode 80%
The phone does not turn on, but responds to charging (vibrates, the indicator lights up) Battery is low or problems with the power button EDL Mode (Qualcomm) or Test Point 50%
Full lack of response to charging and buttons Short circuit, damage to the motherboard JTAG or professional repair 30%

If your case does not fall into the table, try the methods in order, starting with the simplest (MTP). For example, sometimes a phone with a broken screen is still detected by the computer as media device, and the data can be copied using standard means Windows or macOS.

⚠️ Attention: If the phone was locked with a pattern or PIN code, and USB debugging was not enabled in advance the chances of accessing the data without resetting are minimal. In this case, you will have to use Fastboot to unlock the bootloader (which will lead to the deletion of all data).
📊 What type of failure does your phone have?
The screen/sensor is broken
The phone does not turn on
Stuck on the logo
Other

2. Method 1: Standard connection via MTP (if the phone turns on)

The easiest way is to use the protocol MTP (Media Transfer Protocol), which is activated when the phone is connected to the PC via USB. This method is suitable if:

  • 🔹 The screen works, but the sensor does not respond (you can control the mouse via OTG).
  • 🔹 The phone turns on, but does not unlock due to a damaged screen.
  • 🔹 The device is detected by the computer as “media device.”

Step-by-step guide:

  1. Connect the phone to the computer original USB cable (it is better to use the port USB 3.0 on a PC for stability).
  2. If the screen works, unlock the device (if possible). If the sensor does not respond, connect USB mouse via OTG adapter and unlock the phone with it.
  3. The “Charging via USB” notification should appear on the phone screen - click on it and select “File transfer” (MTP).
  4. A window will open on the computer Explorer with phone folders. Copy the necessary data to your hard drive.

If the notification does not appear, try:

  • 🔌 Reconnect the cable (sometimes changing the USB port on the PC helps).
  • 🔄 Reboot the phone manually (holding the power button for 10+ seconds).
  • 🖱️ Use the mouse to navigate the menu (if the screen is working).
⚠️ Attention: On some models Xiaomi, Huawei and Samsung When you connect for the first time, you need to confirm your trust in the computer. If the screen does not work, you cannot skip this step, and you will have to use ADB (see the next section).

Check the integrity of the USB cable|Connect the phone to the rear USB port on the PC (more stable)|Use an OTG adapter for the mouse if it is broken sensor|Reboot the phone before connecting-->

3. Method 2: Control via ADB (for unlocking and copying data)

ADB (Android Debug Bridge) is a debugging tool that allows you to control your phone from your computer via the command line. It is indispensable if:

  • 📱 The screen works, but the sensor does not respond (and MTP does not turn on).
  • 🔒 The phone is locked, but USB debugging was enabled earlier.
  • 🖥️ You need to copy data without physical interaction with the device.

What you will need:

  • 💻 Computer with Windows, macOS or Linux.
  • 🔌 USB cable (preferably original).
  • 📦 Installed drivers ADB and Fastboot (you can download from the website Google or via SDK Platform Tools).

Instructions:

  1. Download and unpack Platform Tools (official package from Google).
  2. Connect the phone to the computer and open the command line (cmd) in the folder with adb.exe.
  3. Enter the command to check the connection: 
    adb devices

    If the phone is detected (the serial number will appear) - go to the next step. If not, check the drivers or cable.

  4. Unlock the screen via ADB (if the phone is locked): 
    adb shell input keyevent 82

    This command simulates pressing a button Menuwhich sometimes helps bypass the lock.

  5. Copy data to your computer (example for folder DCIM c photo): 
    adb pull /sdcard/DCIM C:\Backup\Photos

If adb devices returns an empty list:

  • 🔄 Reinstall the drivers (use Zadig for Windows).
  • 🔌 Try another USB port or cable.
  • 📱 Reboot the phone in Fastboot (hold Power + Volume Down) and check the connection with the command fastboot devices.
💡

If the phone is detected in ADB, but is not unlocked, try the command adb shell input text 1234, where 1234 is your PIN code. This will only work if USB debugging has been enabled to locks.

4. Method 3: Recovery Mode (for phones with bootloop)

If the phone stuck on the logo or reboots cyclically (bootloop), the standard connection via MTP or ADB will not work. In this case, Recovery Mode will help. allows you to:

  • 📁 Copy data to an external drive (if supported).
  • 🔄 Install a firmware update via ADB sideload.
  • 🧹 Reset settings (if data recovery is not critical).

How to enter Recovery Mode:

  1. Turn off the phone (hold the power button for 10+ seconds).
  2. Hold down the button combination (depending on the model):
    • 📱 Samsung: Power + Volume Up + Bixby (hold until the logo appears).
    • 📱 Xiaomi/Redmi: Power + Volume Up.
    • 📱 Google Pixel, OnePlus: Power + Volume Down, then select Recovery Mode.
  • In the Recovery menu, use the volume buttons to navigate and the power button to select.

    • Copying data via Recovery:

    • 🔌 Connect the phone to the PC via USB.
    • 📁 Select item Mount → Mount USB Storage (if available).
    • 💾 A removable disk will appear on the computer - copy the data.

    If the item Mount USB Storage is missing:

    • 🔄 Try ADB sideload to install custom Recovery (for example, TWRP).
    • 📦 Use fastboot boot twrp.img to temporarily download to TWRP (requires an unlocked bootloader).
    ⚠️ Attention: On phones with a locked bootloader (Samsung, Huawei, some Xiaomi) installing custom Recovery will lead to data reset and blocking FRP (reset protection).
    What to do if Recovery Mode asks for a password?

    If the phone has been locked PIN code or pattern key, some versions of Recovery (for example, the stock one on Samsung) may ask for a password. In this case:

    1. Try entering the last used PIN (sometimes it works even if the screen is broken).

    2. If this does not help, the only option is to reset via Wipe Data/Factory Reset (the data will be restored). lost).

    3. For phones with an unlocked bootloader, you can flash a custom Recovery (TWRP) and bypass the lock.

    5. Method 4: Fastboot and EDL Mode (for “dead” phones)

    If the phone does not turn on at all, but reacts to connection to charging (vibrates, the indicator lights up), you can try the Fastboot or EDL (Emergency Download Mode)modes. These protocols are used for:

    • 🔧 Device firmware via PC.
    • 📥 Data recovery (in rare cases).
    • 🔓 Unlocking the bootloader.

    Fastboot available on most Androiddevices, and EDL Mode only on phones with chipsets Qualcomm (for example, Xiaomi, OnePlus, Sony).

    How to enter Fastboot:

    1. Turn off the phone (if it does not respond, remove and insert the battery back, if possible).
    2. Hold the combination:
      • 📱 Samsung: Power + Volume Down + Bixby (hold for 5-10 seconds).
      • 📱 Xiaomi/Google Pixel: Power + Volume Down.
      • 📱 OnePlus: Power + Volume Up.
  • Connect your phone to the PC and check the connection with the command: 
    fastboot devices

    • How to enter EDL Mode (Qualcomm):

    • 🔌 Connect the switched off phone to the PC.
    • 🔧 Close the contacts Test Point (requires disassembly of the device) or use the command: 
      adb reboot edl

      (if the phone somehow turns on).

    • 💻 A port should appear in the device manager Qualcomm HS-USB QDLoader 9008.

    What can be done in these modes:

    • 📥 Flash stock firmware via MiFlash (for Xiaomi), Odin (for Samsung) or Fastboot.
    • 🔓 Unlock bootloader (command fastboot oem unlock).
    • 🛠️ Restore IMEI or EFS (for network functions).
    ⚠️ Attention: Firmware via Fastboot or EDL deletes all data from the device. If the goal is file recovery, first try the methods from the previous sections.
    💡

    EDL Mode is the last chance to “reanimate” a phone with damaged firmware, but requires special tools (for example, QFil for Qualcomm or MiFlash for Xiaomi).

    6. Method 5: Alternative methods (JTAG, chip-off, service centers)

    If none of the above methods worked, remain hardware recovery methods. They require special equipment and skills, so they are usually performed in service centers. Let's look at the main ones:

    1. JTAG (Joint Test Action Group)

    • 🔧 Connection to test contacts on the motherboard.
    • 📥 Allows you to read memory directly, bypassing the operating system.
    • ⚠️ Risk of damage boards if connected incorrectly.

    2. Chip-Off

    • 💾 Removing the memory chip (eMMC or UFS) from the board.
    • 📁 Reading data through the programmer.
    • 🔧 Requires soldering and specialized equipment.

    3. Service centers

    • 🛠️ Professional data recovery (cost from 3,000 to 15,000 ₽).
    • 📄 Guarantee of information safety (in most cases).
    • ⏳ Completion time: from 1 day to weeks.

    When you should contact the service:

    • 💔 The phone is physically damaged (water ingress, short circuit).
    • 🔒 Data is critical (photos, documents, work files).
    • 🛠️ You are not are confident in their skills (the risk of permanently losing data).

    The cost of services depends on the complexity:

    Type of recovery Average cost (₽) Term (days) Chances of success
    Reading via JTAG 5 000 — 10 000 1–3 80%
    Chip-off (eMMC/UFS) 8 000 — 15 000 3–7 90%
    Recovery after water 3 000 — 20 000 5–10 50%
    ⚠️ Attention: Before contacting the service do not try to flash the phone on your own, if you are not sure actions. Incorrect firmware can lead to total loss of data or damage to memory chips.

    7. Prevention: how to avoid data loss in the future

    To avoid the problem of retrieving data from a broken phone, follow simple rules:

    1. Regular backup

    • ☁️ Use cloud services: Google Drive, Yandex Disk, Dropbox.
    • 💻 Set up automatic synchronization of photos (Google Photos) and contacts.
    • 📱 Enable backup in settings Android: Settings → System → Backup.

    2. Hardware preparation

    • 🔌 Enable USB debugging in advance: Settings → About phone → Build number (7 taps) → For developers → USB debugging.
    • 🖱️ Buy OTG adapter and a mouse - they will help control the phone if the sensor is broken.

    3. Protection from physical damage

    • 🛡️ Use a case and protective glass.
    • 💧 Avoid moisture (even “waterproof” phones do not last forever).
    • 🔋 Do not allow the battery to completely discharge (this can damage the power controller).

    4. Software protection

    • 🔒 Set a reliable PIN code (not a pattern - it is more difficult to enter on a broken screen).
    • 📲 Configure Smart Lock (unlocking by trusted device or location).
    • 🔄 Update the firmware regularly (this reduces the risk of freezes).
    💡

    Create an encrypted archive with important data (photos, documents) and store it in the cloud or on a flash drive. Even if the phone breaks, you can quickly restore the information.

    FAQ: Frequently asked questions about connecting a broken phone

    ❓ Is it possible to connect the phone to a PC if it does not turn on and does not respond to charging?

    If the phone completely “dead” (does not vibrate, does not heat up, the indicator does not light up), the chances of connecting are minimal. In this case, only JTAG or chip-off at the service center will help. Before doing this, check:

    • 🔋 Another cable and power supply (sometimes the problem is in the accessories).
    • 🔌 Connecting to another computer (the USB port may be faulty PC).
    • 🔄 Forced reboot (hold Power + Volume Down 20+ seconds).
    ❓ How to copy data if the phone is locked and USB debugging is not enabled?

    Without prior enabled USB debugging and unlocked bootloader There are no legal ways to bypass screen lock. Options: USB debugging data-i="317">📱 For other brands, the only option left is

    • 🔓 If the phone Samsung With Samsung Account - try unlocking via Find My Mobile.
    • 📱 For other brands, all that remains is reset via Recovery (data will be lost) or contacting the service for JTAG/chip-off.

    Attention: Methods like “bypass via call” or “emergency call” work only on very old versions Android (up to 5.0).

    ❓ Why does the computer not see the phone via USB, although it turns on?

    Causes and solutions:

    • 🔌 Problem with the cable/port: Try another cable (preferably original) and port USB 2.0 (sometimes USB 3.0 is not compatible).
    • 🖥️ Missing drivers: Install Google USB Driver or drivers for your model (for example, Samsung USB Driver).
    • 📱 Data transfer mode not selected: On your phone, there should be “File Transfer” in the notification shade (MTP).
    • 🔒 Blocking manufacturer: Some Huawei and Xiaomi require unlocking OEM Unlock in the developer settings.
    ❓ Is it possible to recover data after a reset via Recovery?

    If you have done Wipe Data/Factory Reset in Recovery Mode, the chances of data recovery minimal. However, you can try:

    • 🛠️ Recovery apps: DiskDigger, Recuva (if the phone is defined as a removable disk).
    • 💾 Chip-off: The service center can extract data directly from the memory chip.

    Important: After resetting do not write down new data to the phone - this will reduce the chances of recovery.

    ❓ Which phones are more difficult connect to the PC in case of breakdown?

    The most problematic models:

    • 📱 Apple iPhone - without iTunes or 3uTools connection is almost impossible.
    • 📱 Huawei (from 2019) - locking the bootloader and absence Fastboot.
    • 📱 Samsung s Knox —resetting via Recovery activates FRPlocking.
    • 📱 Phones with Mediatek —difficulties with drivers VCOM for SP Flash Tool.

    The most “friendly” to recovery:

    • 📱 Google Pixel —easy to unlock, there are official tools.
    • 📱 Xiaomi (with unlocked bootloader)—supports Fastboot i EDL.
    • 📱 OnePlus —open firmware, easy recovery.