If your Samsung Galaxy keeps restarting after a factory reset, start by charging it with a Samsung-certified charger and cable, then try a model-appropriate force restart. If it still loops, use Safe mode only if you can reach it, and check whether Smart Switch on a computer detects the phone and offers an update. If those steps fail—or the phone is damaged—contact Samsung service rather than repeating the reset.
1. Charge the phone and check its accessories
Connect the phone to a Samsung-certified charger and compatible cable. A fully depleted battery may not show a charging indicator immediately, so leave it connected and try a known-good spare charger and cable if available. Remove non-genuine accessories, and do not use worn or damaged charging equipment. A charging check can rule out a power problem; it does not by itself repair a software boot loop.
2. Force-restart the Galaxy
For Samsung’s boot-loop guidance, hold the Side key and Volume down together for more than seven seconds, until the phone restarts. Button names and combinations vary by model: Samsung’s separate guidance for a phone stuck at the logo describes holding Volume down with the Power or Side button for approximately ten seconds on relevant devices. If the combination does not match your phone or has no effect, check the instructions for your exact model.
See Samsung’s boot-loop troubleshooting guide and its stuck-at-logo guide.
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3. Use Safe mode only if you can reach it
Safe mode loads core apps and can help identify whether a downloaded app is involved. It is a diagnostic, not a guaranteed fix, and this step is unavailable if the phone never reaches a screen where you can open the power menu.
- Open the power menu.
- Touch and hold Power off until the Safe mode option appears.
- Tap Safe mode.
If the phone stops restarting in Safe mode, uninstall the newest downloaded app. If needed, remove recent apps one at a time, checking whether normal operation returns after each removal. If the loop continues in Safe mode, Samsung advises seeking service; do not assume a particular component has failed.
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4. Check Smart Switch for an available update
If a Mac or Windows PC recognizes the phone, connect it with the phone’s USB cable and open Samsung Smart Switch. If Smart Switch offers an update, select Update and follow the onscreen prompts. Keep the cable connected and do not use the phone until the update finishes; the phone will restart during the process. An update is available only if Samsung offers one for the detected device, and it is not guaranteed to recover every phone stuck in a boot loop.
5. Know when to contact Samsung service
Contact Samsung support or an authorized service location if the phone continues restarting after these checks, if it has visible physical damage, or if you cannot complete the supported restart or update steps. Samsung recommends professional inspection when troubleshooting does not resolve abnormal behavior. The available evidence does not establish a single cause for every post-reset boot loop, so avoid treating it as proof of a failed battery, app, or other specific part.
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A setup account prompt is different from a boot loop
After a reset, Google Factory Reset Protection (FRP) may ask you to verify the Google account previously registered on the phone before setup can continue. Samsung says that on Android 9 and later, the previous screen-lock method may also be available for ownership verification. This prompt can block setup, but it is not the same as a phone repeatedly restarting before reaching setup. Recover access to the account or contact Samsung; do not attempt to bypass the ownership check. See Samsung’s explanation of factory reset and FRP.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why another factory reset should not be the next step
A factory reset deletes personal data. Since the phone has already been reset and still loops, repeating the wipe is not the default next move. Samsung says: “Resetting your device to factory defaults should only be used as a last resort and after trying the previous steps.” Continue with the supported checks above and arrange service if they do not help.
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