DQA
Safe to disable
Samsung's Device Quality Agent, a background logger that reports device and connection quality data to Samsung.
Samsung package
DiagMonAgent
Advanced: com.sec.android.diagmonagent Advanced Community evidence
Samsung's diagnostic monitoring agent that collects error and usage logs and sends them when you allow it. You can disable it, with a caveat: read what stops working first.
What it does
DiagMonAgent gathers diagnostic information, such as crash and error logs, from Samsung apps and system components and sends it to Samsung when the Send diagnostic data setting is on. Samsung apps also use it when you submit an error report. It runs in the background on a schedule and when an error occurs.
Also shown as Diagnostic monitoring agent.
If you disable it
Samsung stops receiving diagnostic reports. Community testers report that on some versions disabling it makes the system retry it constantly, which can heat the phone and drain the battery, so turning off Send diagnostic data is the better first step.
How to disable it
On most phones Settings greys out Disable for this package, so ADB is the way to turn it off. The commands below work without root and can be undone.
Disable it (reversible)
adb shell pm disable-user --user 0 com.sec.android.diagmonagentTurn it back on
adb shell pm enable com.sec.android.diagmonagentThe stronger option removes it for your user only; the original copy stays on the phone and a factory reset brings it back. Prefer disabling: it is easier to undo.
Uninstall for the main user
adb shell pm uninstall -k --user 0 com.sec.android.diagmonagentRestore after an uninstall
adb shell cmd package install-existing com.sec.android.diagmonagentNew to ADB? Set it up in about ten minutes.
Data and battery
Sends crash, error and usage diagnostics to Samsung when Send diagnostic data is on.
Where it appears
- Made by Samsung Electronics.
- Android versions: 9 to 16.
- Seen on: Galaxy S25 Ultra, Galaxy S25, Galaxy S25+, Galaxy S24 Ultra, Galaxy S24.
Questions people ask
What is com.sec.android.diagmonagent?
com.sec.android.diagmonagent is DiagMonAgent. Samsung's diagnostic monitoring agent that collects error and usage logs and sends them when you allow it.
Can I disable DiagMonAgent?
You can disable it, with a caveat: read what stops working first. On most phones it takes ADB.
What happens if I disable DiagMonAgent?
Samsung stops receiving diagnostic reports. Community testers report that on some versions disabling it makes the system retry it constantly, which can heat the phone and drain the battery, so turning off Send diagnostic data is the better first step.
How do I stop Samsung diagnostic data without disabling anything?
Turn off Send diagnostic data in Settings under Security and privacy, in the privacy section. The exact menu name varies by One UI version.
Sources
- Samsung: Use Security and privacy settings on Galaxy phones and tabletsVendor documentation
- Samsung Knox: application list, Galaxy S20 FE 5G (SM-G781B), Android 11Vendor documentation
- Bayton system app database: com.sec.android.diagmonagentCommunity list
- Universal Android Debloater list entryCommunity list
Each source answered when this page was checked on 25 October 2026.
Confidence: Community evidence. Backed by community debloat lists and forum reports, not by the maker. How we decide a verdict.
Cite this page: https://mysystemapp.com/packages/com.sec.android.diagmonagent/ (verified 25 October 2026). Something wrong or out of date? Request a correction.