f.lux (preview, root-only)
v22.0 · 3.7 MB · code 22
Verify you're human
Solve this to start the download.
File information
UpdatedMar 16, 2016
PublishedMar 16, 2016
Packagecom.justgetflux.flux
Versionv22.0 (22)
Size3.7 MB
MD523daa2b7295a2917f9573efef35a4fc7
Min SDK15
ABIsx86, x86_64, armeabi, armeabi-v7a, arm64-v8a, mips, mips64
Malware scanTRUSTED
Signature SHA1E3:1E:BF:6F:4F:BE:A4:62:60:C3:A4:F3:68:E2:4C:41:81:B1:46:D5
SignerCN=Michael Herf, O=f.lux Software LLC, L=Los Angeles, ST=CA, C=US
Total downloads3,894
This version3,894
Developerjustgetflux
Age ratingEveryone
What's new in v22.0
v22:
Fixes a black screen bug.
Adds a time-picker for wake time.
v21:
Fixes tablet/phablet crashes.
Fixes Chrome flashing.
Fixes a black screen bug.
Adds a time-picker for wake time.
v21:
Fixes tablet/phablet crashes.
Fixes Chrome flashing.
Security scan
TRUSTED
- Developer signature verified 2016-05-24
- Scanned for malware 2020-05-26 14:24:31
- Signature SHA1 E3:1E:BF:6F:4F:BE:A4:62:60:C3:A4:F3:68:E2:4C:41:81:B1:46:D5
- File MD5 23daa2b7295a2917f9573efef35a4fc7
How to install f.lux (preview, root-only) v22.0 on Android API 15+
Takes about 2 minutes. You'll need roughly 3.7 MB of free storage.
- Grab com.justgetflux.flux_22.apk — hit the Download button above (3.7 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 23daa2b7295a2917…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.justgetflux.flux_22.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=Michael Herf, O=f.lux Software LLC, L=Los Angeles, ST=CA, C=US. 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 f.lux (preview, root-only) — tap Open on the install screen, or find the f.lux (preview, root-only) icon in your app drawer (this build targets x86/x86_64/armeabi/armeabi-v7a/arm64-v8a/mips/mips64 devices).
Common install errors for f.lux (preview, root-only)
- "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.