Can not write the data on same address in information memory(flash)

Other Parts Discussed in Thread: MSP430F2370

I am not able to write data 2 times on the same address,

I am trying to write 0x05 and 0x07 one after another on 0x1042.

But at the end data i found on 0x1042 is 0x05,instead of 0x07.

I am trying this code on MSP430F2370.

Code:

    WDTCTL = WDTPW + WDTHOLD;            // stop watchdog timer

    Flash_ptr = (unsigned char *) 0x1042;


    BCSCTL1 = CALBC1_1MHZ;                    // Set DCO to 1MHz
    DCOCTL = CALDCO_1MHZ;
    FCTL2 = FWKEY + FSSEL0 + FN1;             // MCLK/3 for Flash Timing Generator


    while(FCTL3 & 0x0001 == BUSY);

    FCTL3 = FWKEY;                            // Clear Lock bit
    FCTL1 = FWKEY + WRT;                      // Set WRT bit for write operation

    *Flash_ptr = 0x05;                   // Write value to flash

    while(FCTL3 & 0x0001 == BUSY);
    FCTL1 = FWKEY;                            // Clear WRT bit
    FCTL3 = FWKEY + LOCK;

    _delay_cycles(9000000);

    while(FCTL3 & 0x0001 == BUSY);

    FCTL3 = FWKEY;                            // Clear Lock bit
    FCTL1 = FWKEY + WRT;                      // Set WRT bit for write operation

    *Flash_ptr = 0x07;                   // Write value to flash

    while(FCTL3 & 0x0001 == BUSY);
    FCTL1 = FWKEY;                            // Clear WRT bit
    FCTL3 = FWKEY + LOCK;

     while(1);