GPRS shield - changed baud to 9600; unable to read


i changed the baud on the GPRS Shield to 9600 (i sent the command AT+IPR=9600) and now i can’t communicate with the shield anymore. it just prints out the gibberish. Is there a way to do a HARDWARE factory reset?

when i have time i will use oscilloscope to determine what is going on as per this tutorial:
kumari [DOT] net [FORWARDSLASH] index [DOT] php [FORWARDSLASH] random [FORWARDSLASH] 37-determing-unknown-baud-rate

any help is much appreciated.