O-Ring Info
v1.5 · 12 MB · code 1005000
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File information
UpdatedJul 30, 2024
PublishedOct 19, 2021
Packageair.com.hutchinson.microengraving
Versionv1.5 (1005000)
Size12 MB
MD513cccdd8b8b4c5ac3b356c9ee63274dc
Min SDK21
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA1A9:7B:4A:06:47:4B:38:C4:D9:32:3A:EE:25:8E:66:13:A4:6B:75:E6
SignerCN=cert
Total downloads500
This version500
DeveloperHutchinson
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2024-07-30
- Signature SHA1 A9:7B:4A:06:47:4B:38:C4:D9:32:3A:EE:25:8E:66:13:A4:6B:75:E6
- File MD5 13cccdd8b8b4c5ac3b356c9ee63274dc
How to install O-Ring Info v1.5 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 12 MB of free storage.
- Grab air.com.hutchinson.microengraving_1005000.apk — hit the Download button above (12 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 13cccdd8b8b4c5ac…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find air.com.hutchinson.microengraving_1005000.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=cert. 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 O-Ring Info — tap Open on the install screen, or find the O-Ring Info icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for O-Ring Info
- "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 5.0 Lollipop 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 arm64-v8a native code. Devices with a different CPU will reject it.