Need help with mobile connection issue

[shrikrushna.bhoi]

Hello everyone,

I have a question regarding a mobile connection issue. I tried to connect my mobile device to my laptop, but I encountered an error. When I entered the command “adb devices” in the command prompt, it showed “0 devices attached.” This is crucial for mobile automation, and I would appreciate any help you can offer. Thank you!

[sagar.singh1 (Sagar Singh)]

Hello @shrikrushna.bhoi,

Follow these steps.

1. Check USB Connection: Use a proper ‘data cable’ and switch USB ports.

2. Enable USB Debugging – In your phone:
   a. Go to Settings > Developer options
   b. Enable USB Debugging

3. Change USB Mode:- Set it to ‘File Transfer (MTP)’ instead of “Charging only.”

4. Restart ADB:- Run these commands in Command Prompt:

adb kill-server
adb start-server
adb devices

5. Reinstall ADB Drivers:- Update or reinstall drivers in ‘Device Manager’.

6. Run ADB as Admin:- Open Command Prompt as ‘Administrator’ and try again.

7. Check in Fastboot Mode:- Restart the phone in ‘Fastboot Mode’ and run:

fastboot devices

If still not working, let me know your phone model and OS version!

[rkelchuri (ER.Krishna)]

@shrikrushna.bhoi ,

It looks like your laptop is not detecting your mobile device via ADB (Android Debug Bridge). Here are some troubleshooting steps to resolve this issue:

1. Check USB Connection

• Use a different USB cable (preferably an original or high-quality data cable).
• Try connecting to a different USB port on your laptop.
• Avoid using USB hubs; connect directly to your laptop’s port.

2. Enable USB Debugging on Your Phone

1. On your phone, go to Settings > About Phone.
2. Tap Build Number 7 times to enable Developer Options.
3. Go to Settings > Developer Options and enable USB Debugging.
4. Set USB Configuration to File Transfer (MTP) or PTP instead of Charging Only.

3. Verify ADB is Installed Properly

• Open Command Prompt and type:

sh

CopyEdit

adb version

If ADB is not recognized, reinstall ADB drivers or platform-tools.

4. Restart ADB Server

• Run the following commands in Command Prompt:

sh

CopyEdit

adb kill-server
adb start-server
adb devices

5. Check for Unauthorized Device

• When connecting your phone, check for a pop-up on your phone asking to authorize USB Debugging.
• Tap “Allow” or “Always allow from this computer.”

6. Install or Update USB Drivers

• If using Windows, update or reinstall your phone’s USB drivers:
  • Download OEM USB drivers from your phone manufacturer’s website.
  • Install Google’s USB driver (for Nexus/Pixel devices).
  • If using Samsung, install Samsung USB Drivers.
• If using Mac/Linux, install ADB via Homebrew (brew install android-platform-tools) or package manager.

7. Check Device in Device Manager (Windows)

1. Open Device Manager (devmgmt.msc).
2. Look under “Android Device” or “Portable Devices”.
3. If you see “Unknown Device” or a yellow warning sign, right-click and update/install the driver.

8. Try a Different Laptop or OS

• If possible, check if the phone is detected on another computer.
• Try using Linux or Mac to see if ADB works there.

Let me know what you’ve tried, and we can dig deeper if needed!

[shrikrushna.bhoi]

I appreciate your help, Sagar. The solution you provided is effective and working perfectly. Thank you once again for your assistance.

[shrikrushna.bhoi]

Thank You So Much It’s help me to find more Knowladge