Optical File Transfer

Name: Optical File Transfer
Availability: InStock
Author: Paweł Wróbel

v0.0.15 · 5.2 MB · code 15

f1f19f886be3d3971352287ec14f7132 TRUSTED

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UpdatedJun 7, 2024

PublishedDec 24, 2022

Packagepl.pwrobel.opticalfiletransfer

Versionv0.0.15 (15)

Size5.2 MB

MD5f1f19f886be3d3971352287ec14f7132

Min SDK17

ABIsarmeabi, armeabi-v7a, arm64-v8a

Malware scanTRUSTED

Signature SHA1B5:15:55:69:7E:79:D6:C3:95:28:8E:F3:FE:A6:AC:F4:68:C1:AA:BA

SignerCN=Pawel Wrobel, OU=Home, O=Home, L=Wroclaw, ST=Dolnoslaskie, C=PL

Total downloads5,000

This version5,000

DeveloperPaweł Wróbel

Age ratingEveryone

Fix rare crash on some phones, when the autofocus is being canceled.

TRUSTED

Takes about 2 minutes. You'll need roughly 5.2 MB of free storage.

Grab pl.pwrobel.opticalfiletransfer_15.apk — hit the Download button above (5.2 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 f1f19f886be3d397…. Any difference means the file is corrupted or tampered — delete and re-download.
Open the APK — tap the download notification, or find pl.pwrobel.opticalfiletransfer_15.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=Pawel Wrobel, OU=Home, O=Home, L=Wroclaw, ST=Dolnoslaskie, C=PL. 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 Optical File Transfer — tap Open on the install screen, or find the Optical File Transfer icon in your app drawer (this build targets armeabi/armeabi-v7a/arm64-v8a devices).

Common install errors for Optical File Transfer

"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 17 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 armeabi/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.