Exact model-family answer directory
Samsung Galaxy S26 family troubleshooting
Samsung Galaxy S26 family (Galaxy S26, S26+ and S26 Ultra; confirm the SM-S identifier in Settings): battery and charging after One UI 8.5; charging that stops at 80 percent; wireless chargers and the camera bump, and a fix for each symptom below.
Battery drainNot chargingOverheatingWi-FiNo serviceBluetooth
Samsung · battery drain
Samsung Galaxy S26 family battery drains too quickly
Open record Samsung · overheatingSamsung Galaxy S26 family gets hot or shows a temperature warning
Open record Samsung · touchscreenSamsung Galaxy S26 family screen or touch input is not working correctly
Open record Samsung · storage fullSamsung Galaxy S26 family storage is full or the device cannot install updates
Open record Samsung · not chargingSamsung Galaxy S26 family will not charge or charges slowly
Open record Samsung · Wi-FiSamsung Galaxy S26 family will not connect to Wi-Fi or keeps disconnecting
Open record Samsung · app crashingSamsung Galaxy S26 family app keeps crashing, freezing or will not open
Open record Samsung · biometric unlockSamsung Galaxy S26 family biometric unlock is not working
Open record Samsung · camera blurrySamsung Galaxy S26 family camera is blurry, shakes or will not focus
Open record Samsung · callsSamsung Galaxy S26 family cannot make calls or send messages
Open record Samsung · GPSSamsung Galaxy S26 family GPS or location is inaccurate
Open record Samsung · no serviceSamsung Galaxy S26 family has no cellular service or data
Open record Samsung · microphoneSamsung Galaxy S26 family microphone is quiet, muffled or not working
Open record Samsung · not syncingSamsung Galaxy S26 family photos, contacts, messages or account data will not sync
Open record Samsung · speakerSamsung Galaxy S26 family speaker is quiet, distorted or has no sound
Open record Samsung · BluetoothSamsung Galaxy S26 family will not pair or stay connected over Bluetooth
Open recordConfirm the model first
Which units this covers, and how to tell yours is one of them
- Model numbers and patterns
- Galaxy S26, S26+ and S26 Ultra; confirm the SM-S identifier in Settings
Published specification
What is true of this model and changes how you fix it
- Battery and charging after One UI 8.5Galaxy S26 Ultra owners in Samsung's community reported fast battery drain, heat and slow charging after the One UI 8.5 update. Samsung-community and review answers suggest installing the newest security patch, putting background-heavy apps to sleep and giving the phone up to two weeks to re-learn its battery use.
- Charging that stops at 80 percentBattery Protection caps charging at 80 percent. It is off by default, but if the S26 Ultra stops at 80, check Settings, Battery before suspecting the charger.
- Wireless chargers and the camera bumpSome owners said the raised camera module keeps the phone from sitting flat on a pad, so charging is slow or intermittent, and a charger's light may stay red after the phone shows full. A pad with a slightly bigger coil or a case that evens the back helps.
Manufacturer support for this product line. Samsung Support — Mobile device support. Official Galaxy model manuals, diagnostics, updates and repair support.
Also read for this model. TechCabal — Samsung One UI 8.5 problems and fixes.
Exact questions
Questions that only have an answer for the Samsung Galaxy S26 family
Why does my Galaxy S26 Ultra only charge to 80 percent?+
Battery Protection is probably on. Turn it off under Settings, Battery if you want a full charge; it exists to slow battery wear.