Hard Reset via Recovery — vivo Y400 4G
Optimized for Y400 4G (Android 15, Funtouch 15)
Factory Reset from Settings — vivo Y400 4G
Optimized for Y400 4G (Android 15, Funtouch 15)
Enter Recovery Mode — vivo Y400 4G
Optimized for Y400 4G (Android 15, Funtouch 15)
FRP Bypass (Google Lock) — vivo Y400 4G
Optimized for Y400 4G (Android 15, Funtouch 15)
Why reset your vivo Y400 4G?
A hard reset on the vivo Y400 4G 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 Y400 4G?
Yes. A hard reset (also called a factory reset) erases all apps, photos, messages, and accounts, returning the vivo Y400 4G to its out-of-box state. Back up anything you want to keep before starting.
Does resetting the vivo Y400 4G 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 Y400 4G?
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 Y400 4G?
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.
What is recovery mode on my vivo Y400 4G?
Recovery mode is a stripped-down menu outside the normal operating system, used to wipe data or apply updates when the vivo Y400 4G won't boot normally. See the Enter Recovery Mode section above for how to reach it on this device.
Can I factory reset my vivo Y400 4G 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 Y400 4G?
"Formatting" and "factory resetting" mean the same thing for the vivo Y400 4G — both erase all data and restore default settings. Use whichever method above matches your situation.