Extract firmware from official Oneplus roms
About this app
Extract firmware from an OxygenOS ROM to a custom flashable firmwareupdater.zip You can select a ROM file, unzip it, check extracted files and modified updater-script, then create a flashable firmware update at sdcard/firmwareupdater.zip
Licensed under MIT.
What's New in v0.3.0
Imported from the F-Droid repository index.
Version history
Mar 18, 2019 · 1.7 MB · Android API 20–27 · code 6
Imported from the F-Droid repository index.
SHA-256 2a51840f3e76ea0f83c51bf62fe1adb6152e6cbeebe491a55fc6305470ae0db0
Jan 23, 2019 · 1.7 MB · Android API 20–27 · code 5
Imported from the F-Droid repository index.
SHA-256 12bb9b2eed3934e233afd6464de2da147d2391ca41a515c984d58445217cd244
Jan 13, 2019 · 1.7 MB · Android API 20–27 · code 4
Imported from the F-Droid repository index.
SHA-256 616c9252e4a2595634be3dbc83085224d24033ccb0838e34eba7d4eac69d2bf0
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be fr.witchdoctors.c4ffein.oosfirmwareextractor is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 0.2.3 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall OOS Firmware Extractor first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of OOS Firmware Extractor, and a listing is removed when the evidence for it stops holding up.
Get OOS Firmware Extractor
Every source we list for fr.witchdoctors.c4ffein.oosfirmwareextractor is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
2a51840f3e76ea0f83c51bf62fe1adb6152e6cbeebe491a55fc6305470ae0db0
Signing certificate
77aeea7bd076759fac474447413affa6ea66349a649e5c34cddc709c8c13ed2b
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.