CheckFirm

4.0
1.01K reviews
100K+
Downloads
Content rating
Everyone
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About this app

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.
Updated on
Oct 6, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.0
970 reviews
Rove McClain
October 6, 2025
The Welcome Search is no longer working after the latest update. When you turn it on, it does not stay on, it deactivates itself. The NULL errors persist after the latest update.
1 person found this review helpful
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Stephen Nohas
December 14, 2025
It's good that it lets you know when new firmware is being tested, but it doesn't let you know when it's going to be released. lt now only seems to show new OS updates which are testing, not security updates.
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Abhishek Kumar
October 22, 2025
Great concept and idea but man it is so buggy. Dude use LLMs at this point.
1 person found this review helpful
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What’s new

[11.2.1]
- Fixed Welcome Search.
- Tried to fix Info Catcher (still needs some tests).

[11.2.0]
- Fixed the error when latest official firmware is not the latest one.
- Improved the app version check logic.
- Improved the search logic.