Hard Reset via Recovery — Cat S31
Optimized for S31 (Android 7.0 (Nougat))
Factory Reset from Settings — Cat S31
Optimized for S31 (Android 7.0 (Nougat))
Enter Recovery Mode — Cat S31
Optimized for S31 (Android 7.0 (Nougat))
FRP Bypass (Google Lock) — Cat S31
Optimized for S31 (Android 7.0 (Nougat))
Why reset your Cat S31?
A hard reset on the Cat S31 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 Cat S31?
Yes. A hard reset (also called a factory reset) erases all apps, photos, messages, and accounts, returning the Cat S31 to its out-of-box state. Back up anything you want to keep before starting.
Does resetting the Cat S31 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 Cat S31?
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 Cat S31?
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 Cat S31?
Use the Hard Reset method above if your Cat S31 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 Cat S31 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 Cat S31?
"Formatting" and "factory resetting" mean the same thing for the Cat S31 — both erase all data and restore default settings. Use whichever method above matches your situation.