Title: Samsung Galaxy S21 FE – Android Auto Not Working with USB Cable in Any Car
Post:
Hi everyone,
I’m facing a persistent issue with my Samsung Galaxy S21 FE related to Android Auto. It simply doesn't work via USB cable in any car, no matter what I try.
Details:
Phone model: Samsung Galaxy S21 FE (Exynos variant)
Software: Running latest firmware and Android version (as of July 2025)
Issue: Android Auto doesn’t launch or get detected when I connect the phone to a car using a USB cable.
Tested in multiple cars: Tried it in Hyundai, Maruti, and Skoda systems — same issue.
Cables tested:
Original Samsung cable (fast charging/data cable)
Multiple high-quality USB-A to USB-C and USB-C to USB-C cables
Android Auto version: Updated to latest from Play Store
Developer settings: USB debugging tried ON and OFF – no difference
Phone Settings Checked:
Android Auto is enabled
Permissions granted
USB preference set to "File Transfer" and “Data Transfer” manually
What I’ve Tried:
Cleared cache and data of Android Auto
Reinstalled Android Auto
Restarted phone multiple times
Tried safe mode
Reset app preferences
Factory reset the phone (still didn’t work)
Verified that other phones work fine in the same car with the same cable
This issue has become very frustrating, especially since Android Auto is a key part of my daily drive. I feel like I’ve tried everything, but the phone simply refuses to connect via cable.
Questions:
1. Is this a known issue with the S21 FE?
2. Could this be a hardware-level USB/data pin problem?
3. Has anyone else faced this with recent software updates?
4. Any other workaround or solution?
Would really appreciate help or insights from anyone who’s resolved this or is experiencing the same.
As per your concern, you have already done the possible troubleshooting steps and the issue remains unresolved, we kindly request that you visit our service center. Our technical team will be able to inspect your device physically and provide you with detailed information and assistance.
