Hello everyone, i am having an issue on my S25 Ultra .. it won't turn on, before that i was travelling and switched to my old sim when arrived. I've forgotten my pin so was actually inserting my PUK code then the phone was bugged and i've force turn off it using volume down and power button since then i can't restart it .. Can someone pls help me? I've watched videos on YT but still not turning on.. Help me pls 🙏🏼
Hi Martian07 Understood. Let’s treat this as a hard-power / boot failure after forced shutdown during SIM/PUK entry. That can put Samsung devices into a stuck power state, but most cases are recoverable. Work through these in order — do not skip steps.
1. Force-reboot properly (long hold — not short) A quick press won’t work if it’s frozen. Hold Power + Volume Down together Keep holding for at least 20–30 seconds Ignore anything on screen — keep holding even if it vibrates once If the phone is just in a deep freeze, this should trigger a reboot. If nothing happens → continue.
2. Charge check (very important) If the battery drained during the bug/PUK screen, the phone may be fully flat and appear dead. Plug into a wall charger (not PC) Use original or high-watt Samsung charger if possible Leave it 20 minutes minimum While plugged in, hold Power + Volume Down again for 20 seconds Look for: Charging icon Vibration Screen flash No sign at all → continue.
3. Try booting into Recovery Mode This bypasses normal startup and checks if the phone is alive. Plug phone into a charger or PC Hold: Volume Up + Power Keep holding until Samsung logo appears Release only when recovery menu shows If recovery appears: Choose Reboot system now If it keeps failing: Choose Wipe cache partition (safe, does NOT delete data) Then reboot If you cannot reach recovery at all, continue.
4. Try Download Mode (hardware test) This confirms whether the phone still powers electrically. Plug into PC Hold Volume Up + Volume Down While holding both, plug USB into phone See if download screen appears If download mode appears → device is not dead, just stuck.
5. Possible cause From your description: You were entering PUK Phone bugged/froze You forced shutdown Now won’t boot This can cause: Bootloop freeze System crash during SIM unlock Rarely: firmware corruption But most likely it’s just stuck in a deep power state.
6. Last at-home attempt (battery reset simulation) The S25 Ultra has no removable battery, so we simulate disconnect. Plug charger in Hold Power + Volume Down for 40 seconds straight Do not release early Try twice.
7. Important question Answer these so I can diagnose precisely: Does it vibrate at all when holding power? Any logo flash? Does PC detect it when plugged in? Was battery low when this happened? Did it feel hot during the freeze?
8. If absolutely no response If: No vibration No logo No charging icon Not detected by PC
Then likely: Battery fully drained and not waking Charging port issue Hardware protection lock At that point it needs a service centre battery wake / reflash. Data is usually still safe.
Do NOT Keep randomly pressing buttons Try many chargers rapidly Attempt factory reset yet Panic — this is usually recoverable
