CheckFirm

Download CheckFirm APK

com.illusion.checkfirm · by Bluesion

Tools Bluesion
Latest Version: 11.1.5 • Updated: Jan 10, 2026
Download CheckFirm APK
v11.1.5 · APK

Screenshots

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About CheckFirm

You can check Samsung device firmare with CheckFirm. 1. Search Just input model and CSC. CheckFirm will search official and test firmware for you. 2. Bookmark Add your device to bookmark. You can search it on main screen and search screen with one touch. You can also backup and restore your bookmarks! 3. Theme You can choose light and dark theme. Latest One UI theme is embedded too. 4. Help Are you a newbie to CheckFirm? I prepared information for you. You can see it on CheckFirm settings - Help. 5. Welcome Search Whenever you open CheckFirm, it will search firmware automatically. You can enroll up to 4 devices. 6. Info Catcher You can even get notification whenever new test firmware is found. 7. Sherlock & Watson Samsung encrypted firmware. Now it's time to guess the real firmware. You can use Sherlock to decrypt firmware information! Use Sherlock, and be Watson. 8. Inquiry Did you find a bug? Are you curious about the app? Do you have an amazing idea? You can contact with CheckFirm developer. My eyes and ears are always open for you guys.

All CheckFirm APK versions

11.1.5
May 03, 2026
1 variant
11.1.8
Apr 30, 2026
1 variant
11.1.7
Apr 29, 2026
1 variant
11.1.6
Apr 27, 2026
1 variant
11.2.1
Mar 20, 2026
1 variant
11.2.0
Mar 19, 2026
1 variant

Frequently Asked Questions

Yes. Every CheckFirm APK on APK.now is automatically scanned and the cryptographic signature is verified against the original publisher's certificate (Bluesion). Files that fail verification are removed before they ever reach the catalog.

Enable 'Install from unknown sources' for your browser (or the file manager you use to open the APK) under Settings → Apps → Special access. Tap the downloaded CheckFirm APK, confirm the prompts, and Android installs it just like any app from the Play Store.

The latest CheckFirm version available on APK.now is 11.1.5. We track new releases from Bluesion continuously and add them to the catalog as soon as they pass verification.

Yes — every CheckFirm APK and every version on APK.now is free to download. We never gate downloads behind sign-up, surveys, or paywalls.

APK.now keeps a full archive of every CheckFirm release, including older versions that the Play Store has already replaced. The APKs work on devices without Google Play Services (Huawei, GrapheneOS, Amazon Fire) and are signature-verified so you can be confident the file is genuine.