SEIO Agent v3.8.8
APK · 32.6 KB · version code 28 · Android 2.3+ · uploaded May 13, 2026
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v3.8.9, uploaded May 18, 2026 — about 4 days after this one.
- Size: this file is 32.6 KB; the latest is 36.6 KB (4 KB larger).
- Both versions request the same permissions.
File information
- Version
- v3.8.8 (28)
- Uploaded
- May 13, 2026
- Size
- 32.6 KB
- Requires
- Android 2.3+ (API 9)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- f4a26c91f20a0358a38fbbcd63107a41
- Signing certificate (SHA-1)
- A2:3B:98:2F:02:A9:E5:AD:1B:01:B0:A2:F1:5E:37:6F:C7:C3:17:16
- Signed by
- O=SK Telecom, L=Korea, C=82
- File name
- com-skp-seio-28-74740018-f4a26c91f20a0358a38fbbcd63107a41.apk
- Package
- com.skp.seio
- Downloads (all versions)
- 50M+
- Age rating
- PEGI 3 · Everyone
What's new in v3.8.8
※ SEIO Agent 3.8.8 업데이트(5/8)
01.targetSDK version 수정
Permissions (2)
This version requests 2 permissions, none of them sensitive.
- Nfc transaction event android.permission.NFC_TRANSACTION_EVENT
- Smartcard service access (custom) com.sktelecom.smartcard.permission.SERVICE_ACCESS
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on May 13, 2026.
- Certificate issued to “SK Telecom” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks
- Developer signature not checked yet May 13, 2026
- Validated against Google Play May 13, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself.
How to install SEIO Agent on Android 2.3+
You'll need about 65.3 KB of free space.
- Download the APK — tap Download APK above (32.6 KB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-skp-seio-28-74740018-f4a26c91f20a0358a38fbbcd63107a41.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be f4a26c91f20a0358a38fbbcd63107a41. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open SEIO Agent — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 2.3+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.