Package
com.samsung.android.sdk.handwriting
HandwritingService
Guidance
Labelled "HandwritingService" on the device and signed by the Samsung OEM keys that also sign the Android framework. The package name is Samsung's own handwriting SDK namespace, and the package declares a permission in that same namespace for updating handwriting resource languages, alongside internet access. Read together, that is a handwriting recognition component that other Samsung apps call into, with some notion of per-language resources that can be updated, rather than an app with a screen of its own. Samsung publishes no documentation for the package itself, so that reading comes from its name, label and declared permissions and is not a vendor statement. The user-facing feature it plausibly serves is documented: Samsung Notes converts S Pen handwriting to typed text and offers a handwriting language setting. Samsung does not document how that recognition is performed, or which component performs it, so the link between the feature and this package is our reading rather than something we could source. The package also records the phone state permission, which we note as observed because we could not source an explanation for it. Version note: in our sample the package appears only on Samsung devices, across API levels 28 to 37. Samsung states that the feature to convert handwritten text is only available for devices with an S Pen, so the presence of this package on a device does not by itself tell you the feature is available there. We could not source any Android or One UI release in which this package's role changed, and Samsung has not documented one. For Android Enterprise, EMM and kiosk deployments it has no enrolment, security or management role. On pen-equipped devices used for note taking or signature capture, if this is the recognition engine behind that feature then disabling it would be expected to break handwriting to text conversion, so leave it alone there unless you have tested otherwise. On fleets with no pen and no handwriting input it is a more reasonable removal candidate, but because we could not source what else on a Galaxy build binds to it, test on a single device before applying it more widely.
Package intelligence
Observed signing, permission, version and size signals from contributing devices - descriptive of that sample, not a verdict. These come from the v2 Package Search sync, which not every device has contributed to yet, so for some packages this detail is partial or not present at all.
- Signed by the device maker's own signing key (Samsung), so it is an OEM preinstall, but 2 different certificates appear across the fleet, so OEMs ship their own builds of it. It also signs the Android framework, so it is a platform-level key on its device(s). Inferred from the certificate appearing only on Samsung devices (508 packages, 10196 observations).
- Its largest observed manifest declares 4 permissions: 1 runtime (user-granted), 1 install-time and 2 vendor or uncatalogued.
- Never reported as user-facing, so it runs as a background or system component rather than an app the user opens.
Declared permissions (4)
Largest permission set observed for this package. Text is Android's own published description where one exists; platform permissions Android does not document show their granted protection level (in grey) instead; vendor or unknown constants show the name only.
| Permission | Description |
|---|---|
ACCESS_LOCAL_NETWORK |
- |
INTERNET |
Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet. |
READ_PHONE_STATE |
Allows the app to access the phone features of the device. This permission allows the app to determine the phone number and device IDs, whether a call is active, and the remote number connected by a call. |
com.samsung.android.sdk.handwriting.permission.RESOURCE_LANGUAGE_UPDATE |
- |
Manage on devices
ADB commands for this package (the inverse of each is included so you can undo). Run from an authorised shell or wire the equivalent into your DPC. Verify on a test device first - this database doesn’t yet classify which packages are safe to change. --user 0 targets the current user; drop it (and use a privileged shell) to act device-wide.
/system, so Restore re-adds it (-k keeps app data)Seen on
Each record is a device profile (make + model + Android version). Each unique handset that syncs against a matching profile will increase the observations of a package, thereby increasing confidence that a package is expected to be on a device.
| OEM | Model | Android | Provenance | Observations | Last seen |
|---|---|---|---|---|---|
| Samsung | SM-A057G | Android 15 | OEM Samsung | 1 | 8 Aug 2026 |
| Samsung | SM-A125F | Android 12 | OEM Samsung | 1 | 21 Jan 2026 |
| Samsung | SM-A135F | Android 14 | OEM Samsung | 3 | 21 Jan 2026 |
| Samsung | SM-A137F | Android 14 | - | 1 | 17 Jan 2026 |
| Samsung | SM-A236B | Android 14 | OEM Samsung | 2 | 10 Apr 2026 |
| Samsung | SM-A266B | Android 15 | - | 2 | 21 Aug 2025 |
| Samsung | SM-A266B | Android 16 | - | 1 | 26 Jan 2026 |
| Samsung | SM-A346B | Android 15 | OEM Samsung | 1 | 27 Jul 2026 |
| Samsung | SM-A515F | Android 13 | - | 1 | 30 Jun 2025 |
| Samsung | SM-A528B | Android 13 | - | 1 | 19 Jun 2025 |
| Samsung | SM-A536B | Android 15 | - | 1 | 19 Jun 2025 |
| Samsung | SM-A536B | Android 16 | OEM Samsung | 1 | 29 Jul 2026 |
| Samsung | SM-A556B | Android 15 | - | 1 | 1 Jul 2025 |
| Samsung | SM-A566B | Android 16 | OEM Samsung | 3 | 12 Sep 2026 |
| Samsung | SM-F721B | Android 15 | - | 1 | 9 Jul 2025 |
| Samsung | SM-F766B | Android 16 | - | 1 | 11 Nov 2025 |
| Samsung | SM-F971B | Android 17 | OEM Samsung | 1 | 18 Sep 2026 |
| Samsung | SM-G766B | Android 15 | - | 1 | 17 Oct 2025 |
| Samsung | SM-G766B | Android 16 | OEM Samsung | 1 | 5 Sep 2026 |
| Samsung | SM-G780F | Android 13 | OEM Samsung | 1 | 29 Dec 2025 |
| Samsung | SM-G973U | Android 12 | OEM Samsung | 2 | 10 Jun 2026 |
| Samsung | SM-G991B | Android 15 | OEM Samsung | 1 | 19 Apr 2026 |
| Samsung | SM-M315F | Android 12 | - | 1 | 2 Feb 2026 |
| Samsung | SM-N950U1 | Android 9.0 | - | 1 | 20 Aug 2025 |
| Samsung | SM-N986B | Android 13 | - | 9 | 17 Jul 2025 |
| Samsung | SM-S721U | Android 15 | - | 5 | 5 Aug 2025 |
| Samsung | SM-S731B | Android 16 | OEM Samsung | 1 | 11 Aug 2026 |
| Samsung | SM-S906B | Android 15 | - | 1 | 2 Jun 2025 |
| Samsung | SM-S908U | Android 16 | OEM Samsung | 2 | 17 Sep 2026 |
| Samsung | SM-S921B | Android 15 | OEM Samsung | 2 | 22 Jul 2025 |
| Samsung | SM-S921B | Android 16 | OEM Samsung | 1 | 17 Sep 2026 |
| Samsung | SM-S921U | Android 15 | - | 1 | 19 Jun 2025 |
| Samsung | SM-S926B | Android 16 | OEM Samsung | 1 | 14 Apr 2026 |
| Samsung | SM-S928B | Android 16 | OEM Samsung | 2 | 12 Jun 2026 |
| Samsung | SM-S928U1 | Android 15 | - | 1 | 12 Sep 2025 |
| Samsung | SM-S931B | Android 15 | - | 1 | 20 Sep 2025 |
| Samsung | SM-S931B | Android 16 | - | 1 | 23 Nov 2025 |
| Samsung | SM-S936B | Android 16 | - | 1 | 18 Dec 2025 |
| Samsung | SM-S937B | Android 15 | - | 1 | 25 Aug 2025 |
| Samsung | SM-S938B | Android 15 | - | 2 | 25 Aug 2025 |
| Samsung | SM-S942B | Android 17 | OEM Samsung | 1 | 25 May 2026 |
| Samsung | SM-S948U | Android 16 | - | 1 | 9 Sep 2026 |
| Samsung | SM-T636B | Android 15 | - | 2 | 12 Oct 2025 |
| Samsung | SM-T976B | Android 13 | - | 1 | 21 Jul 2025 |
| Samsung | SM-X200 | Android 14 | - | 1 | 27 Aug 2025 |
| Samsung | SM-X716B | Android 15 | - | 1 | 27 Jun 2025 |
| Samsung | SM-X910 | Android 14 | - | 1 | 26 Jun 2025 |
| Samsung | SM-X910 | Android 15 | - | 1 | 12 Sep 2025 |
Known labels
Locale-aware display names seen in the wild.
| Label | Locale | Seen |
|---|---|---|
| HandwritingService | en-gb | 26 |
| HandwritingService | en | 20 |
| HandwritingService | en-us | 19 |
| HandwritingService | nl-nl | 5 |
| HandwritingService | it-IT | 5 |
| HandwritingService | es-us | 3 |
| HandwritingService | de-de | 3 |
| HandwritingService | en-nl | 3 |
| HandwritingService | es-es | 2 |
| HandwritingService | 2 | |
| HandwritingService | fr-fr | 2 |
| HandwritingService | es-ES | 2 |
| HandwritingService | en-GB | 2 |
| HandwritingService | it-it | 2 |
| HandwritingService | ru-ru | 1 |
| HandwritingService | cs-CZ | 1 |
| HandwritingService | cs-cz | 1 |
| HandwritingService | en-US | 1 |
| HandwritingService | en-au | 1 |
| HandwritingService | es-US | 1 |
| HandwritingService | fr-FR | 1 |
| HandwritingService | fr-dz | 1 |
| HandwritingService | pl-PL | 1 |
| HandwritingService | pl-pl | 1 |