How to flash samsung galaxy s3 by its own recovery mode?

[IBRAR PRINCE]

I Have Samsung Galaxy S3 SGH-I747M I Want To Flash It To The Stock ROM But Its Micro USB Port Was Damaged And Does Not work And My Phone Is Not In The Bootable Condition But It Will Be Able To Boot In To Recovery Mode And Download Mode Please Help Me How Can I Flash It By Its Own Recovery Mode

 

[Golfdriver97]

If you are on the stock recovery, you can't use it to flash ROMs.

 

[IBRAR PRINCE]

if i can't flash it by stock recovery then why there is an option (apply update from external storage)