IIJ SmartKey
v2.1.7 · 5.4 MB · code 16
Verify you're human
Solve this to start the download.
File information
UpdatedFeb 10, 2026
PublishedMar 23, 2023
Packagejp.ad.iij.smartkey2
Versionv2.1.7 (16)
Size5.4 MB
MD5466d89bae03f690f79d2c3a95d6cdced
Min SDK15
ABIsx86, x86-64, armeabi, armeabi-v7a, arm64-v8a, mips, mips64
Malware scanTRUSTED
Signature SHA182:92:0F:96:89:3C:4F:86:50:53:81:02:8E:CF:FC:C5:6C:9E:C1:2D
SignerOU=Product Division, O=Internet Initiative Japan Inc., L=Chiyoda-Ku, ST=Tokyo, C=JP
Total downloads50,000
This version50,000
DeveloperInternet Initiative Japan Inc.
Age ratingEveryone
What's new in v2.1.7
* Add support for Android 15 (API Level 35).
* Add support for Google's new view specifications (Edge-to-Edge display).
* Add support for Google's new view specifications (Edge-to-Edge display).
Security scan
TRUSTED
- Developer signature verified 2026-02-10
- Signature SHA1 82:92:0F:96:89:3C:4F:86:50:53:81:02:8E:CF:FC:C5:6C:9E:C1:2D
- File MD5 466d89bae03f690f79d2c3a95d6cdced
How to install IIJ SmartKey v2.1.7 on Android API 15+
Takes about 2 minutes. You'll need roughly 5.4 MB of free storage.
- Grab jp.ad.iij.smartkey2_16.apk — hit the Download button above (5.4 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 466d89bae03f690f…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find jp.ad.iij.smartkey2_16.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read OU=Product Division, O=Internet Initiative Japan Inc., L=Chiyoda-Ku, ST=Tokyo, C=JP. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open IIJ SmartKey — tap Open on the install screen, or find the IIJ SmartKey icon in your app drawer (this build targets x86/x86-64/armeabi/armeabi-v7a/arm64-v8a/mips/mips64 devices).
Common install errors for IIJ SmartKey
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android API 15 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships x86/x86-64/armeabi/armeabi-v7a/arm64-v8a/mips/mips64 native code. Devices with a different CPU will reject it.