Audio Fix / setup help
Samsung Galaxy Buds4 Pro: inspect call routing separately from media
Samsung Galaxy Buds4 Pro: inspect call routing separately from media. Use the observations to distinguish a documented setting from an unresolved symptom.
Manufacturer-documented Reviewed 2026-11-09 · Revision 1
Follow these checks in Audio Fix →When this guide applies
Android product connection; calls missing while ordinary media works. No microphone repair or test-call requirement.
Connection scope: Bluetooth. Symptom: Sound changes during calls.
This is a documented check, not a diagnosis of your equipment. The model name does not confirm the selected input, mode, software or connected partner.
If your exact model or a required setting is unknown, use the “I don’t know” branch below. Do not apply a similarly named model’s instructions.
Checks and possible outcomes
Start at check-0. Follow the link that matches what you actually observe. Alternative branches are not a single sequence of actions.
check-0
Does ordinary Bluetooth media work from this source?
A call-only symptom needs its own connection/function check.
Look for: Confirm the stated observation; do not infer an unavailable detail.
- If Yes / this check is completed → Open Manage connections
- If No / the check cannot be completed → Keep the last observation for support
- If I do not know / cannot check → An observation is still unknown
- Manufacturer-documented Samsung Galaxy Buds4 Pro official user guide ↗Manage connections > Calls and Audio — Calls and media Audio are separate enabled connection functions; in-ear detection can route calls according to wearing state.Exact SM-R640 Buds4 Pro branch; available settings vary with connected software. Other generations are excluded. · Source checked 2026-11-09
check-1
Open Manage connections
On Galaxy One UI8+, open Settings > your earbuds; earlier or other supported Android uses Galaxy Wearable. If your interface differs, stop.
Look for: Perform only this check, then choose whether it could be completed.
- If Yes / this check is completed → Is Calls enabled for the connected pair?
- If No / the check cannot be completed → Keep the last observation for support
- If I do not know / cannot check → An observation is still unknown
- Manufacturer-documented Samsung Galaxy Buds4 Pro official user guide ↗Manage connections > Calls and Audio — Calls and media Audio are separate enabled connection functions; in-ear detection can route calls according to wearing state.Exact SM-R640 Buds4 Pro branch; available settings vary with connected software. Other generations are excluded. · Source checked 2026-11-09
check-2
Is Calls enabled for the connected pair?
Calls and Audio are separate functions. Enable Calls only if you want this source’s conversations routed through the earbuds.
Look for: Confirm the stated observation; do not infer an unavailable detail.
- If Yes / this check is completed → Does the next normal call use the intended route while the buds are worn?
- If No / the check cannot be completed → Keep the last observation for support
- If I do not know / cannot check → An observation is still unknown
- Manufacturer-documented Samsung Galaxy Buds4 Pro official user guide ↗Manage connections > Calls and Audio — Calls and media Audio are separate enabled connection functions; in-ear detection can route calls according to wearing state.Exact SM-R640 Buds4 Pro branch; available settings vary with connected software. Other generations are excluded. · Source checked 2026-11-09
check-3
Does the next normal call use the intended route while the buds are worn?
Do not place an unwanted test call. If still routed elsewhere, retain the phone/app and wear-state observations for support.
Look for: Confirm the stated observation; do not infer an unavailable detail.
- If Yes / this check is completed → Checks completed — report your actual outcome
- If No / the check cannot be completed → Keep the last observation for support
- If I do not know / cannot check → An observation is still unknown
- Manufacturer-documented Samsung Galaxy Buds4 Pro official user guide ↗Manage connections > Calls and Audio — Calls and media Audio are separate enabled connection functions; in-ear detection can route calls according to wearing state.Exact SM-R640 Buds4 Pro branch; available settings vary with connected software. Other generations are excluded. · Source checked 2026-11-09
Possible result
An observation is still unknown
Check the exact model and linked instructions before continuing. An unknown setting or response is not evidence of a fault.
insufficient data
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
Possible result
Keep the last observation for support
These checks have not established a working setup. Contact manufacturer support with the exact source, software and last observed response. No hardware or firmware fault is diagnosed.
next support
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
Possible result
Checks completed — report your actual outcome
Completion does not automatically mean the original problem is solved. Report whether these checks solved, partly helped or did not help your setup. No Audio Review physical test is claimed.
steps completed
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.