4D FLY
v3.3.2 · 86.6 MB · code 20230727
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File information
UpdatedNov 7, 2025
PublishedOct 31, 2020
Packagecn.com.htoe.fly4d
Versionv3.3.2 (20230727)
Size86.6 MB
MD5ee9b974b797bca7f40cdf29ef5d2e3fb
Min SDK21
ABIsarmeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA10A:69:3E:DD:B4:30:78:C6:0F:1E:2B:6E:DF:AB:F0:A4:A2:D4:6B:9F
SignerC=86
Total downloads100,000
This version100,000
DeveloperHi-Tech Optoelectronics Co., Ltd
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2024-09-06
- Scanned for malware 2024-09-06 21:46:56
- Signature SHA1 0A:69:3E:DD:B4:30:78:C6:0F:1E:2B:6E:DF:AB:F0:A4:A2:D4:6B:9F
- File MD5 ee9b974b797bca7f40cdf29ef5d2e3fb
How to install 4D FLY v3.3.2 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 86.6 MB of free storage.
- Grab cn.com.htoe.fly4d_20230727.apk — hit the Download button above (86.6 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 ee9b974b797bca7f…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find cn.com.htoe.fly4d_20230727.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 C=86. 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 4D FLY — tap Open on the install screen, or find the 4D FLY icon in your app drawer (this build targets armeabi-v7a/arm64-v8a devices).
Common install errors for 4D FLY
- "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 armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.