My earphone Jack is not working properly?

Hi @omkarpawar

Seems like a faulty headphone jack.

Two options:

a) Replace the headphone jack. Search online for Samsung 3722-004146 to find suppliers that suit you best

b). The headphone jack is mounted on the charge port board, so it may be easier to simply replace the charge port board. Search online for Galaxy F13 SM-E135F charge port board to find suppliers that suit you best.

Here's a video that shows how to replace the board that will help. If you decide to replace just the headphone jack, remove the charge port board from the phone as it will be easier to work on it if it is separated from the phone.