[OpenWrt-Devel] [PATCH] ath79: Add support for Ubiquity Bullet M2HP

Petr Štetiar ynezz at true.cz
Sat Nov 17 07:15:15 EST 2018

Lech Perczak <lech.perczak at gmail.com> [2018-11-17 10:28:20]:

> Wasn't this possible with downgrading to AirOS 5 first just as it is done
> for XM series?  Please take a look for instructions for them, on XM the
> procedure is quite easy.

I was using the same downgrade trick on other older UBNT devices as well, and
I hoped, that it would still work for this new device as well, but it didn't.
I simply couldn't find airOS v5 firmware image for XW, and flashing airOS v5
image for XM failed for me on XW:

 XW.v6.1.7# fwupdate.real -m /tmp/XM.v5.6.15.30572.170328.1107.bin -d
 Current: XW.ar934x.v6.1.7.32555.180523.1754
 New ver: XM.ar7240.v5.6.15.30572.170328.1107
 Versions: New(329231) 5.6.15, Required(393220) 6.0.4
 Invalid version 'XM.ar7240.v5.6.15.30572.170328.1107'

So for me it was clear, that it's different platform ar934x versus ar7240 and
that minimum version allowed for XW is 6.0.4. As of today, for XW you can
download just two firmware versions 6.1.7 and 6.1.8. My device came from
factory flashed with 6.1.5.

Wherever I looked it was all just about TFTP and initramfs methods, which
needs soldering and possibly can cause warranty problems.

-- ynezz

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