Error after download firmware

:frowning: any solution for me…?
i just download new firmware 657e for fastrack m1306b with 1x modem but its not finish n prompt “Transfer cancelled by user” on hyperterminals it say’s like"download complete" i try to command w/ at+cfun=1 but no respone, i try to disconnect power and try to command, but its always return error

my old ver
firmware 657a
wipsoft v201
opem at os v312