TP-Link MR3020 v3 build problems

Hi,

I'm trying to compile an image for MR3020 v3, but failed so far.

I've chosen the base system, target profile and subtarget per your suggestion. Yet after make I cannot see factory.bin in bin directory. Only upgrade.bin.

Normally, with MR3020 v1's image, if factory.bin is not there it's because the package size is more than the ROM size (~4Mb). That's why I've deleted many packages, including opkg, luci, tc, ipset and many more, but still no success.

What should I try next?