Fix: Revoke USB debugging authorizations on the phone (Developer Options → Revoke USB debugging authorizations). Then disconnect, reconnect, and accept the RSA fingerprint prompt on the phone.
This is the core driver that lets Windows recognize your Galaxy A12 in download mode, ADB, or MTP mode.
Direct .exe file – install before connecting your phone.
| Driver Name | Version | Download Source | | :--- | :--- | :--- | | Samsung USB Driver | v1.7.86.0 (or latest) | Official Samsung Developers Page |
🔗 Direct Access: Go to
developer.samsung.com/android/usb-driverand click the “Download” button.
Windows should now recognize your Exynos 850 device. Check Device Manager > Portable Devices or Samsung Android Device.