Why is My S6 edge( SM-G925I) stuck on boot image?

[Android Central Question]

Few months ago my phone started lagging continuously after that it hanged every time I used any GPU consuming app.At the last time I couldn't do anything but make calls
Then I installed custom rom from noble rom which was a S8 skin.It ran good for a few days but then again it started hanging.I tried out various custom roms but the result was the same.
Finally one day the phone shut down for good and hasn't started since

the download mode screen says:
ODIN MODE
PRODUCT NAME: SM-G925I
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Custom
REACTIVATION LOCK: OFF
SECURE DOWNLOAD: ENABLED
KNOX WARRANTY VOID: 1(0x030c)
RP SWREV: B:3 K:2 S:2

 

[Roshan Shahi]

Few months ago my phone started lagging continuously after that it hanged every time I used any GPU consuming app.At the last time I couldn't do anything but make calls
Then I installed custom rom from noble rom which was a S8 skin.It ran good for a few days but then again it started hanging.I tried out various custom roms but the result was the same.
Finally one day the phone shut down for good and hasn't started since

the download mode screen says:
ODIN MODE
PRODUCT NAME: SM-G925I
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Custom
REACTIVATION LOCK: OFF
SECURE DOWNLOAD: ENABLED
KNOX WARRANTY VOID: 1(0x030c)
RP SWREV: B:3 K:2 S:2

Still i have same problem. No solution for it ! ( i flashed with many custom rom such as lineage os, deoxed rom but all has different bugs such as camera not working, where no network, sound problem etc ). Also flashed with different official samsung rom buy buying premium on their official website but stucks in samsung . Why the ******* system status is custom till now after i flashed with official rom.

If someone has solution then please reply fast. S6 edge (G925I )