I programmed 15 boards with the LPC2368, using FlashMagic without any problem. Now, on the next 25 board, 10 of them couldn't get programmed. FlashMagic stopped with "Operation failed (erasing device)". Programming this board using the ULINK2 is o.k. The schematic of the bootloader parts is identical to the one used on the MCB2300 EVA Board. Two other people have doublecheck the boards without finding any wrong parts. Then we replaced a processor by a new one and now programming this board with FlashMagic is o.k! Is there a known problem with the bootloader of this chip?