Samsung Galaxy freezing? Restart, Safe mode and factory reset
A freezing Galaxy can often be saved at home in a few minutes. Start with a force restart and leave the factory reset for last.
- Most common cause
- a faulty app, full storage or a bug after an update
- Time
- 10–30 minutes
- Repair shop, if nothing helps
- 200–610 zł for diagnostics and repair
Restart and Safe mode do not delete data. A factory reset removes everything from the phone, so first back up to Samsung Cloud or to a computer with Smart Switch. Also note down your Google and Samsung account details, because you will need them after the reset.
Step by step
Try a normal restart
Hold the power button and choose Restart. If the screen responds, this is often enough.
Force restart
If the screen does not respond, hold the power button and Volume Down together for more than 7 seconds. The phone will switch off and start again on its own.
Run Optimization
Go to Settings → Device care and tap Optimize now. The phone will close background apps and clean up memory.
Update the system and apps
Check for system updates in Settings and for app updates in Google Play. Old app versions often cause freezing.
Try Safe mode
Hold the power button, then touch and hold Power off, then tap Safe mode. If the phone runs smoothly in Safe mode, a recently installed app is to blame. Uninstall it, then restart the phone to leave Safe mode.
Back up your data
Warning: a factory reset deletes all data. Back up to Samsung Cloud, or connect the phone to a computer and use Smart Switch.
Restore factory settings
Go to Settings → General management → Reset → Factory data reset and confirm. After the reset, set up the phone from scratch and check whether the problem is gone before you install all your apps.
- The phone freezes even after a factory reset.
- The device heats up when idle or the battery drains very fast.
- The phone is stuck in a restart loop or on the Samsung logo.
- The case bulges, the screen lifts or the phone got wet.
How much does a repair shop charge?
| Diagnostics and software repair | 110–340 zł |
| Galaxy battery replacement | 200–540 zł |
| Galaxy screen replacement | 410–2050 zł |
| Motherboard repair | 540–1650 zł |
Typical prices at independent repair shops in Poland, October 2026. Authorised service centres and big cities can be more expensive.
Repair or buy new?
Restart, Safe mode and a reset are free and solve most software problems. Do them yourself. If the phone still freezes after a reset, it is the hardware, most often the battery or the motherboard. For a model that is several years old, compare the repair cost with the price of a new phone in the calculator.
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Open the calculator →FAQ
How do I force restart a Samsung?
Hold the power button and Volume Down together for more than 7 seconds, until the phone switches off and on.
How do I leave Safe mode?
Restart the phone the normal way. It usually returns to normal mode.
Will a factory reset remove my Google account?
The data on the phone will be deleted, but after the reset the phone will ask you to sign in to the previous Google account. You must know the password.
Will a reset fix slow performance?
Often yes, if the cause is software. It will not help if the battery or storage is worn out.