Train tripped when departing station. TCreset EB but unable to proceed in AM mode. Tc feedback 'A' side cab door not proven closed. TC opened and closed 'A' si de cab door twice and proceeded on ATPM to the next station. ~~~~~ 3514 Train tripped when departing station. TC reset EB but unable to proceed in AM mode. Tc feedback 'A'side cab door not proven closed. TC opened and closed 'A' side cab door twice and proceeded on ATPM to the next station.  Check and found cab door latch not fully down when depress cab door handle, left 3mm protrude out. Causes the cab door jam and not fully latchm readjusted cab door latch and overlapping 5mm, function test DIR.DMI ok. Done by: Sanip, Koh, Jack. 14/03/2024.