I found this command and steps in the SETool2 Help, FAQ #5

Script

readpkg:/system/wap/profile/

will create pkg_imei.pkg,

then, to write it back use

writepkg:/pkg_imei.pkg

but I got this error after I executed the script (error occured 8)

Will execute script now.
Make package from /system/wap/profile/
Gathering info, please wait.
/system/wap/profile/WAP Profile
error occured 8
/system/wap/profile/MMS Profile
error occured 8
Success
Phone detached
Elapsed:26 secs.

Please help me correct this script. Thanks.