Swap your USB cable, try a different USB port (preferably a rear USB 2.0 port on a desktop PC), or reinstall the Samsung USB drivers.
Using official firmware is the only way to restore your phone to its factory state without losing warranty or security features. Fixing Bootloops: Restores a device that won't get past the Samsung logo. Reverting Root/Custom ROMs:
Boot into stock recovery mode (Hold Volume Up + Power during startup) and select Wipe Data / Factory Reset , then reboot. official samsung galaxy a20 sma205f ds stock rom
Your phone should appear in the "ID:COM" box, turning it blue or yellow.
Whether you are looking to fix a software glitch, remove a custom recovery, or simply return your device to its factory state, installing the is the most reliable solution. This guide provides a comprehensive overview of why you might need the stock firmware and how to install it safely. Why Do You Need the Stock ROM? Swap your USB cable, try a different USB
: Completely removes custom modifications and restores your factory warranty status.
Before downloading firmware, look closely at the build number. Samsung uses a security mechanism called . You cannot flash a firmware version with a binary number lower than what is currently installed on your phone. Reverting Root/Custom ROMs: Boot into stock recovery mode
Which are you trying to install (Android 9, 10, or 11)?
Install the downloaded on your Windows PC.
