Hard Reset via Recovery — Ulefone Armor 21
Optimized for Armor 21 (Android 13)
Factory Reset from Settings — Ulefone Armor 21
Optimized for Armor 21 (Android 13)
Enter Recovery Mode — Ulefone Armor 21
Optimized for Armor 21 (Android 13)
FRP Bypass (Google Lock) — Ulefone Armor 21
Optimized for Armor 21 (Android 13)
Why reset your Ulefone Armor 21?
A hard reset on the Ulefone Armor 21 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 Ulefone Armor 21?
Yes. A hard reset (also called a factory reset) erases all apps, photos, messages, and accounts, returning the Ulefone Armor 21 to its out-of-box state. Back up anything you want to keep before starting.
Does resetting the Ulefone Armor 21 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 Ulefone Armor 21?
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 Ulefone Armor 21?
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 Ulefone Armor 21?
Use the Hard Reset method above if your Ulefone Armor 21 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.
Does my Ulefone Armor 21 have a hard reset button?
Not a single dedicated button — the Ulefone Armor 21 uses a button combination instead of one labeled "reset." See the Hard Reset section above for the exact keys to press.
How do I format my Ulefone Armor 21?
"Formatting" and "factory resetting" mean the same thing for the Ulefone Armor 21 — both erase all data and restore default settings. Use whichever method above matches your situation.