Hard Reset via Recovery — NIU Andy 3.5E2I
Optimized for Andy 3.5E2I (Android 4.4 (KitKat))
Factory Reset from Settings — NIU Andy 3.5E2I
Optimized for Andy 3.5E2I (Android 4.4 (KitKat))
Enter Recovery Mode — NIU Andy 3.5E2I
Optimized for Andy 3.5E2I (Android 4.4 (KitKat))
FRP Bypass (Google Lock) — NIU Andy 3.5E2I
Optimized for Andy 3.5E2I (Android 4.4 (KitKat))
Why reset your NIU Andy 3.5E2I?
A hard reset on the NIU Andy 3.5E2I 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 NIU Andy 3.5E2I?
Yes. A hard reset (also called a factory reset) erases all apps, photos, messages, and accounts, returning the NIU Andy 3.5E2I to its out-of-box state. Back up anything you want to keep before starting.
Does resetting the NIU Andy 3.5E2I 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 NIU Andy 3.5E2I?
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 NIU Andy 3.5E2I?
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.
How do I reset my NIU Andy 3.5E2I?
Use the Hard Reset method above if your NIU Andy 3.5E2I 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.
Can I factory reset my NIU Andy 3.5E2I 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 NIU Andy 3.5E2I?
"Formatting" and "factory resetting" mean the same thing for the NIU Andy 3.5E2I — both erase all data and restore default settings. Use whichever method above matches your situation.