CheckFirm

3.8
1.05K reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
Learn more
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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

3.9
1.02K reviews
A Google user
March 22, 2020
Amazing and useful app! I really find this app useful, especially for it telling me when i will receive the next update. But just a question. How can i exactly know when they will release the update. Often the builds of my devive (A505FN) have number 2 at the end, so it means they've rebuilt the firmware 2 times with a new OS but like 3 times in a row. But the last discovered edit on the firmware is 2020/03/17, so since then no firmware change. Is there an exact way to know when?
20 people found this review helpful
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Bluesion
March 23, 2020
Hi, First of all, thank you so much for your kind words. Unfortunately, there is no way to know the release date. It depends, but it usually takes about 3 weeks - 5 weeks. (OS upgrade takes longer) Thank you so much for using my app. If you have more questions, please email to me :)
G Prz
July 10, 2025
Amazing app. It's such a shame, you're not receiving all the credit here, while others on Twitter, get to post pics of your application and completely forget that this project is licensed under GPL and not a single credit was ever issued to you. Stuff like that really kills development for many. I hope you get all the fame and attention for this app one day. Don't let others ruin and take credit for what you built sir. Have a nice day!
8 people found this review helpful
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Vishesh
June 11, 2025
This app was working perfectly and recently out of no where it now asks me each time to update it to latest version which I have already done. Either the app asks me to update or is stuck with splash screen, please for this. I tried uninstalling, clearing cache and data and nothing worked at all. I even reinstalled this app from play store and it's still there.
10 people 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.