1. Can you not possibly include some more information to help you troubleshoot then operation failed!?Awesome!You can change The Android version to track apps or sometimes change the firmware! but for dummies,change everything that is necessary and then you think it will work?STUPID!Somehow, this app corrupted my build.prop and resulted in me being unable to boot my S21 5G (SM-G991B).
2. Operation Failed is pretty useless info what am I supposed to do with that? Also way too many ads, I was immediately overwhelmed by all the ads popping up every time a button was hit so I paid for the ad free version and then find out the damn app doesn't even work.
3. Failed to open any file... Maybe I should set anything before the start? I'll rate this app with five+++ immediately after it will show my build.prop file up.
4. This actually deleted a lot of my files, not just the build.prop. Reported.Really worked for me my other device was rooted probably because i changed everything for ex.
5. Make sure you know what you are doing before modifying anything in your build.prop. If you are not sure about a mod then DON'T DO IT!Used it to try change my media steps.
6. If your device is 5.0 and you are changing it to a samsung s9 it wont work it is unbalanced you have to change everything otherwise it wont work !Why everyone giving bad ratings? The app is fantastic and no ads .
7. Couldnt get adb workig to edit build.prop ended up in a complete wipe and start over.
8. If I created an error dialog for one of my apps and all it says was operation failed I'd get fired.
9. Oneplu6TIt just freezes while opening .prop or other files with the round logo PROP in the center of the blank screen.
10. But I am saying this app work very good and before my boot time was 1 min 10 -27 seconds but after less than 30 seconds.
11. The other red flag was the fact that clicking "backup" didn't create any backups, nor did it create an automatic backup like it claimed it would in the settings.