小米Redmi Note3屏幕失灵，Charge Only模式下如何访问设备数据？

Hey there, sorry to hear about your water-damaged Redmi Note 3—water damage can throw up some tricky issues, but let's work through practical ways to get your data out without needing a working touchscreen:

Method 1: Use ADB (Android Debug Bridge) (if USB Debugging was enabled before) #

This is the most reliable route if you had USB Debugging turned on prior to the problem:

• First, install Xiaomi USB drivers on your computer (or generic Android USB drivers if you can't find Xiaomi's official ones). Grab the ADB tool pack and extract it to a folder on your PC.
• Connect your phone to the computer via USB. Even in Charge Only mode, if USB Debugging was enabled, your PC should detect the device through ADB.
• Open Command Prompt (Windows) or Terminal (Mac/Linux), navigate to the ADB folder, and run adb devices to confirm your phone shows up in the connected devices list.
• Once confirmed, you can pull data directly:
  • To export photos/videos: adb pull /sdcard/DCIM/ C:\Your\Target\Folder (replace the path with your desired location on your PC)
  • To back up all data (apps, settings, media): adb backup -all -f my_phone_backup.ab – you can later extract this backup file with tools like Android Backup Extractor.
  • For local contacts: adb pull /data/data/com.android.providers.contacts/databases/contacts2.db C:\Your\Target\Folder (note: this might require root access; if not, use adb shell content query --uri content://contacts/phones to list contacts in the terminal and copy them manually)

Method 2: Try OTG Mouse/Keyboard to Switch USB Mode #

Even with an unresponsive touchscreen, an OTG adapter might let you control the phone:

• Grab an OTG adapter, connect a wired mouse or keyboard to your phone.
• Press the power button to wake the phone (you’ll see the backlight, even if the screen is black—you’ll need to guess UI positions, but most Android phones keep the USB connection prompt in the notification shade).
• Use the mouse to drag down the notification shade, then click the "Charge Only" option to switch to File Transfer (MTP) mode. Once switched, your PC should recognize the phone’s storage as an external drive, letting you copy files directly.

Method 3: Boot into Recovery Mode to Access Data #

Xiaomi’s Recovery mode supports ADB access, which works even if USB Debugging wasn’t enabled:

• Power off your phone completely.
• Hold the Power + Volume Up buttons until you see the Xiaomi Recovery screen.
• Connect your phone to the computer, then use ADB commands as in Method 1 to pull data. Most official Recovery builds allow ADB access, so adb devices should detect the phone here, and you can run adb pull /sdcard/ to copy all internal storage files to your PC.

Method 4: Hardware Repair (Last Resort) #

If none of the above work, the touchscreen or USB controller might have sustained water damage. A repair shop can fix the touchscreen or clean the charging port/related components—once the screen works again, you can switch out of Charge Only mode and access your data normally. Just make sure to tell the technician you need to recover data first before any major repairs.

A quick note: Avoid charging the phone further until you’re sure all internal moisture is gone—continuing to charge could cause more short-circuit damage.

内容的提问来源于stack exchange，提问作者help me with math