R16 firmware does not expand system/legato partitions on WP76

I’ve read on the customer notes that since R14 there should be more space reserved for system and userapp partitions, reported as such:

QTI9X07-3868: Enlarge RootFS and Legato partition for larger customer application
With a bump from 29952KB to 60416KB for mtd13 (system) and 8704KB to 17664KB for mtd14 (lefwkro)

However, even if I update my board to R16 applying Legato 19.11.2, Linux SWI9X07Y_02.37.07.00 and Modem 002.095_000, there were no changes to the size of system and lefwkro. I’ve flashed multiple times using swiflash / fwupdate and even recompiled the rootfs from source without avail.

Here’s the output from /proc/mtd:

dev:    size   erasesize  name
mtd0: 00280000 00040000 "sbl"
mtd1: 00280000 00040000 "mibib"
mtd2: 00680000 00040000 "backup"
mtd3: 00100000 00040000 "security"
mtd4: 00200000 00040000 "persist"
mtd5: 01180000 00040000 "efs2"
mtd6: 04f40000 00040000 "swifota"
mtd7: 00180000 00040000 "tz"
mtd8: 000c0000 00040000 "devcfg"
mtd9: 000c0000 00040000 "rpm"
mtd10: 02000000 00040000 "modem"
mtd11: 00100000 00040000 "aboot"
mtd12: 00f00000 00040000 "boot"
mtd13: 01e00000 00040000 "system"
mtd14: 008c0000 00040000 "lefwkro"
mtd15: 01900000 00040000 "swirw"
mtd16: 08300000 00040000 "userapp"
mtd17: 03680000 00040000 "reserved"
mtd18: 02180000 00040000 "slot_2"
mtd19: 02180000 00040000 "slot_1"
mtd20: 02180000 00040000 "slot_0"

Which amounts to 31MB for System and 9MB for Legato

And the output from ATI8

Legato Ver: 19.11.2_4ad011d85a76309438be40fc19e7153a
Yocto Ver:  SWI9X07Y_02.37.07.00 2020-06-16_11:43:43
OS Ver: Linux version 3.18.140 (oe-user@oe-host) (gcc version 7.3.0 (GCC) ) #1 PREEMPT Tue Jun 16 11:08:34 UTC 2020
LK Ver: SWI9X07Y_02.37.07.00
RootFS Ver: SWI9X07Y_02.37.07.00 2020-06-16_11:43:43
UserFS Ver: unknown
MCU Ver: 002.015

Does someone know what happened? Do I need to downgrade first to R14?

I believe the module with R16 which come out freshly from factory will have the new partition size.

Well, this bad news, since i’ve already bought all the modules i need for the project i need them for.
Guess I’ll use userrw and bind/overlay the folders where I need them to be.
The only thing I don’t understand is why report the size increase in the customer notes for the firmware if it only applies to the new modules, I’ll never know.