Hard Reset via Recovery — vivo Y31 (2015)
Optimized for Y31 (2015) (Android 5.1 (Lollipop), Funtouch 2.1)
Factory Reset from Settings — vivo Y31 (2015)
Optimized for Y31 (2015) (Android 5.1 (Lollipop), Funtouch 2.1)
Enter Recovery Mode — vivo Y31 (2015)
Optimized for Y31 (2015) (Android 5.1 (Lollipop), Funtouch 2.1)
FRP Bypass (Google Lock) — vivo Y31 (2015)
Optimized for Y31 (2015) (Android 5.1 (Lollipop), Funtouch 2.1)
Why reset your vivo Y31 (2015)?
A hard reset on the vivo Y31 (2015) fixes boot loops, forgotten PINs and persistent lag. The method above will wipe the device back to factory condition. Always back up your data first, as a reset cannot be undone.
Frequently asked questions
Will a hard reset delete everything on my vivo Y31 (2015)?
Yes. A hard reset (also called a factory reset) erases all apps, photos, messages, and accounts, returning the vivo Y31 (2015) to its out-of-box state. Back up anything you want to keep before starting.
Does resetting the vivo Y31 (2015) remove the SIM lock or carrier lock?
No. A hard or factory reset only clears data and settings — it doesn't remove a carrier/SIM lock, which is tied to the device's IMEI at the network level. You'd need to contact your carrier for an unlock.
How long does a factory reset take on the vivo Y31 (2015)?
Typically a few minutes, though it can take longer on older or heavily used devices as more stored data has to be wiped.
Will I need my Google account password after resetting the vivo Y31 (2015)?
Yes, if Factory Reset Protection (FRP) is enabled. Android (and HarmonyOS 2.x devices with Google services) will ask for the last signed-in Google account after a reset — make sure you know that password first.
Can I factory reset my vivo Y31 (2015) without the password?
Yes — resetting through recovery mode doesn't require your lock screen password, since it bypasses the login screen entirely. That said, Factory Reset Protection may still ask for your Google account credentials afterward as an anti-theft measure.
How do I format my vivo Y31 (2015)?
"Formatting" and "factory resetting" mean the same thing for the vivo Y31 (2015) — both erase all data and restore default settings. Use whichever method above matches your situation.
How do I reset my vivo Y31 (2015)?
Use the Hard Reset method above if your vivo Y31 (2015) is frozen or won't respond, or the Factory Reset method if the screen still works normally — both are covered step by step on this page.