For the past 15 years, I’ve switched Android phones more than 50 times, easily. Each time I did that, I performed the same action on my old phone: Go to settings, find the factory reset option, and tap it. Simple, right?

But in the past few years, I started noticing something a little different. It seemed like my old phone didn’t dissociate from my Google account entirely, and there were remnants of it in a few places. I recently started looking into these and realized something: There’s a crucial step I should always do before factory resetting any Android phone, and I’ve been skipping it for years.

https://www.androidauthority.com/you-are-factory-resetting-android-phone-wrong-3627221/?rand=7