Exact model-family answer directory
Samsung Galaxy S25 family troubleshooting
Samsung Galaxy S25 family (SM-S938* (S25 Ultra), SM-S936* (S25+), SM-S931* (S25)): the S Pen has no Bluetooth; green line after an update; battery drain after One UI updates, and a fix for each symptom below.
- The S Pen has no BluetoothSamsung confirmed that the S25 Ultra's S Pen drops Bluetooth. Air gestures, music control and the camera remote shutter do not work with it, so a pen that will not trigger the camera is working as designed. Older Bluetooth pens still write on the screen but keep no remote features either.
Samsung Galaxy S25 family battery drains too quickly
Open record Samsung · overheatingSamsung Galaxy S25 family gets hot or shows a temperature warning
Open record Samsung · touchscreenSamsung Galaxy S25 family screen or touch input is not working correctly
Open record Samsung · not chargingSamsung Galaxy S25 family will not charge or charges slowly
Open record Samsung · Wi-FiSamsung Galaxy S25 family will not connect to Wi-Fi or keeps disconnecting
Open record Samsung · app crashingSamsung Galaxy S25 family app keeps crashing, freezing or will not open
Open record Samsung · biometric unlockSamsung Galaxy S25 family biometric unlock is not working
Open record Samsung · camera blurrySamsung Galaxy S25 family camera is blurry, shakes or will not focus
Open record Samsung · GPSSamsung Galaxy S25 family GPS or location is inaccurate
Open record Samsung · no serviceSamsung Galaxy S25 family has no cellular service or data
Open record Samsung · microphoneSamsung Galaxy S25 family microphone is quiet, muffled or not working
Open record Samsung · speakerSamsung Galaxy S25 family speaker is quiet, distorted or has no sound
Open record Samsung · BluetoothSamsung Galaxy S25 family will not pair or stay connected over Bluetooth
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Which units this covers, and how to tell yours is one of them
- Model numbers and patterns
- SM-S938* (S25 Ultra), SM-S936* (S25+), SM-S931* (S25)
Published specification
What is true of this model and changes how you fix it
- Green line after an updateOwners reported a vertical green, pink or white line appearing during or after updates, including One UI 7, with no drop or water. It is a display fault that software does not clear, and Samsung's advice was to take the phone to service.
- Battery drain after One UI updatesSamsung Community threads describe drain and heat after major One UI releases. The usual sequence is to install the newest patch, let the phone settle for about two weeks, then check Battery for one app using the most in the background.
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. Neowin — Samsung officially confirms that the Galaxy S25 Ultra does not support Bluetooth S-Pen; SamMobile — It is true, Galaxy S25 Ultra S Pen does not have Bluetooth features; Samsung Members — Green Line issue on S25 Ultra after today's update.
Exact questions
Questions that only have an answer for the Samsung Galaxy S25 family
Why won't my S Pen control the camera on a Galaxy S25 Ultra?+
Samsung removed Bluetooth from this S Pen, so air actions and the remote shutter are gone. It still writes on the screen.
What is the green line on my S25 Ultra?+
A failing display connection, often first seen after an update. Restarting does not remove it; ask Samsung about a display repair.