How to Factory Reset Samsung Galaxy A21s

The Samsung Galaxy A21s is one of Samsung’s more affordable mid-range devices. It has a 6.5-inch HD+ Infinity-O LCD display and runs Android 10 out of the box. The phone is powered by a 2GHz octa-core Exynos 850 processor coupled with 3GB/4GB/6GB of RAM and 32GB/64GB/128GB of storage. As far as battery life goes, it has a massive 5,000mAh battery, so you can be sure you won’t run out of juice anytime soon.

Why Factory Reset Samsung Galaxy A21s?

  • To get rid of viruses and malware.
  • To improve the device’s performance and speed.
  • To remove bloatware and unwanted apps.
  • To protect your personal data.
  • To sell the device or give it away.

How to Factory Reset Samsung Galaxy A21s

The first thing you need to do is back up your data. This includes photos, contacts, music, documents, and any other data you don’t want to lose. You can do this by using Samsung Smart Switch, transferring them to a computer or external storage device, or using a cloud storage service.

Once that’s done, follow these steps to perform a factory reset on your Samsung Galaxy A21s:


  1. Go to Settings > General management
  2. Tap Reset > Factory data reset
  3. If you want to delete all data on your phone, tap Delete all
  4. Enter your PIN, password or pattern if prompted
  5. Tap Reset
  6. Tap Delete all
  7. The device will start to reset and reboot. The reset will take several minutes.

When the reset is finished, your device will be powered on with a fresh start-up screen. You can now set up your Samsung Galaxy A21s the way you want it to be.


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