LPC2144 Flash Issue

Hi, i have a problem with the micro LPC2144FBD64. I've bought a lot of pieces of this micro from a broker, but i can't program them. I always used FLASHMAGIC with the same micro from another distributor with success,but now i have a Failed to Autobaud message. I cannot even upload my firware using ULINK, i have a JTAG communication problem message. Is there a kind of procedure for recover them? 

Is there an alternative with the same pin out of LPC2144FBD64? 

Thank you