Trying to built yocto for fx30 cat1

you can use swicwe to see the partition:

but seems you cannot decrypt it…

I have downloaded your cwe to my WP76 module, it shows:

B -  16525906 - Imagetype=0x08 compat_id=0x00
B -  16526364 - Flash device name H27S4G8F2EKPB4
B -  16528438 - compat_tbl: device name MT29F4G08ABBFA3W compat 0x01
B -  16534629 - compat_tbl: device name H27S4G8F2EKPB4 compat 0x01
B -  16540485 - Imagetype=0x0B compat_id=0x00 incompatible with Flash!
B -  22217359 - VERSION=SWI9X07Y_02.37.07.00 2022/12/16 07:10:44,SIZE 0x20d7a20, IMG_TYPE=0x8,NON-SPKG/FOTA IMG,ERROR=Flash write failed: Package not compatible (0X86),STATUS=FAIL

I suspect the COMPAT_BYTE is still “00000001” in your ./yocto/meta-swi/common/recipes-core/cwetool/cwetool/yoctocwetool.sh, so it cannot be downloaded to new memory of module: