[FS#1086] can't upgrade from unifi ap stock BZ.v3.2.12 to lede via syswrapper.sh update2

[LEDE Bugs]

The following task has a new comment added:

FS#1086 - can't upgrade from unifi ap stock BZ.v3.2.12 to lede via syswrapper.sh update2
User who did this - Dean Hamstead (djzort)

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I had the same problem with lede firmwares.

The barrier breaker linked at https://wiki.openwrt.org/toh/ubiquiti/unifi works, and has the following notable text in the console log at upgrade:

Current: BZ.ar7240.v3.3.19.4015.160218.1458

New ver: BZ.ar7240.v6.0.0-OpenWrt-r42625

Compared to:

Current: BZ.ar7240.v3.3.19.4015.160218.1458

New ver: BZ.ar934x.v6.0.0-OpenWrt-r3560-79f57e422d
Invalid version 'BZ.ar934x.v6.0.0-OpenWrt-r3560-79f57e422d'


the ar934x seems entirely wrong, like the build profile is incorrectly configured.

the file i am using is lede-17.01.4-ar71xx-generic-ubnt-unifi-squashfs-factory.bin

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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1086#comment4674