Show me how to understand those informations

[Cassidy]

Hi, many many times, Shaggyskunk1BLM or CHMultimedia are knowing if a device has been flashed or if it's  a legit phone, anybody please learn me how you do it, i want to understand. 

Here is 2 pictures,  which device it is and where did it come from and what is the market it's supposed to be ?

Here you are...

[CHMultimedia]

Okay so DTB5 is the latest version for this CSC, and all the build numbers are valid and matched after all. It's just that for some reason, Samsung did not push any update for TEL since March. It's legit. The user can safely flash the latest software from OXM.

[Cassidy]

CHMultimedia 

The person want to know if his device has been flashed...

And I want to understand how you check this if never this question is asked  again...(for my knowledge)

[RobertZ]

If you want to check if Knox has been tripped, boot the device into download mode and check the text at the top left corner for the "Warranty: " line. It will have a value of 0x1 if Knox has been tripped, and 0x0 if not.

[jokkir]

Yeap. If you don't know how to get into Download Mode, it's hold Volume Up + Volume Down while plugging in a USB wire to the phone. Then press the correct button to continue (I believe it's Volume Up).

Warranty Void should have a value 0x0 if someone didn't flash or unlock the bootloader (though iirc Snapdragon can't be unlocked?). 0x1 is if Knox has been tripped and someone did the two mentioned above. Though you could just try to open up Samsung Pass or Samsung Pay as they won't work when Knox is tripped and give you a warning when booting.

Although, a official firmware could have been installed (which doesn't trip Knox) possibly to get features not available in Canadian phones, updates, or whatever.

If you're tech savvy enough, probably find the proper Canadian firmware for your phone and flash via Odin. Keep in mind that this will probably delete all your data so yeah. It'll just be easier going to a Samsung Store and getting it fixed there to avoid voiding your warranty.

[CHMultimedia]

Well, the combination is valid so no, it wasn't flashed.
I check this info based on released firmware

[Cassidy]

Does it help more if i show you this ?

[CHMultimedia]

Not really as I had already established it was genuine firmware