QRsetup
v2.2 · 4.9 MB · code 2020000
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File information
UpdatedNov 12, 2025
PublishedJun 12, 2023
Packagejp.buffalo.aoss.qrsetup
Versionv2.2 (2020000)
Size4.9 MB
MD5f35d2164098d11b8c4374a6bc2fe77e4
Min SDK28
Malware scanTRUSTED
Signature SHA152:66:0F:07:8E:99:57:A7:87:9F:B9:8B:7C:A1:F0:B5:74:87:AA:5A
SignerCN=Yoshiki Osawa, OU=Unknown, O=BUFFALO INC., L=Nagoya, ST=Aichi, C=JP
Total downloads1,000,000
This version1,000,000
DeveloperBUFFALO INC.
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2025-11-12
- Signature SHA1 52:66:0F:07:8E:99:57:A7:87:9F:B9:8B:7C:A1:F0:B5:74:87:AA:5A
- File MD5 f35d2164098d11b8c4374a6bc2fe77e4
How to install QRsetup v2.2 on Android 9 Pie+
Takes about 2 minutes. You'll need roughly 4.9 MB of free storage.
- Grab jp.buffalo.aoss.qrsetup_2020000.apk — hit the Download button above (4.9 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 f35d2164098d11b8…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find jp.buffalo.aoss.qrsetup_2020000.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 CN=Yoshiki Osawa, OU=Unknown, O=BUFFALO INC., L=Nagoya, ST=Aichi, 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 QRsetup — tap Open on the install screen, or find the QRsetup icon in your app drawer.
Common install errors for QRsetup
- "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 9 Pie 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.