Acer Vero W6m (6E) with OpenWrt

Thanks :slight_smile:

Yes, since there are no firmware files to download from Acer (as far as I know) and I have a "bricked" one I thought it might come in handy if there are new ways to recover in the future. That might involve the original firmware files somehow.

But I am also assuming that the files probably needed, (sd2 sd3 uboot etc) cant be saved or read anyway ?

I booted up OpenWrt initramfs over tftp, and backed up all my partitions prior to installing anything. Provided you didn't u-boot 'saveenv' - it should be pristine. That said, the backups won't really help you much unless you can figure out how to write to the emmc on a brick...

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I really dont have any hopes to recover the bricked one, but its always good to have backup :slight_smile:

I have a brand new one (since im setting up a mesh network) and so far I have only tried the serial-connection to see that it works - no saveenv at all.

Since im also connected with tftp, your solution sounds just right - can you give me a hint on how to do it ? it almost sounds like a one-line command, then save ?

Off the top of my head:

Plug an ethernet cable into non-wan port (this might not even matter...) - connect it to your network.
I used 'game' on the Predator, and I think 'lan1' on the Vero.

Once you're at the u-boot prompt (customize the ips as appropriate for your network, I run my tftp server [dnsmasq] on my main openwrt router):

setenv ipaddr 192.168.1.95   (unused ip)
setenv netmask 255.255.255.0
setenv gatewayip 192.168.1.1   (default gateway)
setenv serverip 192.168.1.1   (tftp server)

fdt addr $(fdtcontroladdr)
fdt rm /signature
tftpboot $(loadaddr) predator.bin
bootm

https://firmware-selector.openwrt.org/?version=SNAPSHOT&target=mediatek%2Ffilogic&id=acer_predator-w6
kernel ie. https://downloads.openwrt.org/snapshots/targets/mediatek/filogic/openwrt-mediatek-filogic-acer_predator-w6-initramfs-kernel.bin saved to tftp server as predator.bin
(or use 23.05.4 version, I've yet to use the snapshot version actually)

You should get openwrt booting up.
From root shell

ip -4 addr del 192.168.1.1/24 dev br-lan
ip -4 addr add 192.168.1.95/24 dev br-lan
ip -4 route add default via 192.168.1.1
echo 'nameserver 192.168.1.1' > /tmp/resolv.conf

at this point if all goes well 'ping 1.1.1.1' and 'ping ipv4.google.com' should work.

get date +%s output on another linux machine. call:
date -s @the_date_as_an_integer

this should make https work (certs need a close to valid date).

you might also be able to just:

date -s @$(wget -q -O - http://app.elentari.org/time_unix)

Now from another machine you should be able to:

cat ~/.ssh/id_*pub

copy one of the keys into /etc/dropbear/authorized_keys
this should make:

ssh root@192.168.1.95 id

work without a password prompt

ssh root@192.168.1.95 md5sum /dev/mmcblk0* > md5sum.txt
ssh root@192.168.1.95 'cd /dev && echo mmcblk0*' > mmcblks
for i in $(cat mmcblks); do ssh root@192.168.1.95 cat /dev/$i > $i; done
md5sum -c md5sum.txt

All the above needs testing :wink:
if the checksums pass, gzip -9 the files - they'll shrink a lot.

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Wow, thanks! :smiley:

Fantastic information for me - and others of course :slight_smile:

And, yes - i realize that I have to test and try it.

Hi,
current openwrt snapshots fail to support 2.4 GHz and 6 GHz wifi not only for Acer Predator Connect W6, but (of cause) also for Acer Connect Vero W6m. A downgrade or a workaround will help until the regression will be fixed.

...until the regression will be fixed.

...which already happened. (edited, we will have to wait for the next snapshot)

... we will have to wait for the next snapshot...

...no longer. It can be downloaded now.

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So do I understand correctly that serial connection is always required to use this device?

Is this device worth it considering the price is low for the impressive hardware?

No, used correctly you only have to do it once :slight_smile:

Most definitely, its one of the few with OpenWRT support that has 3 radios (2.4, 5 and 6GHz)

In my opinion the only setback is the lack of a 2.5Gb port.

Im actually thinking of getting one more for the low sellout price before stock run out.

How hard is it to connect serial physically, and whats the best available adapter for this?

Its not that hard, you just have to make sure it has physical contact.

If you - like me - are not comfortable with soldering you can just hold a cable with pins against the board.

I have a somewhat "risky" solution myself - I use a sharp needlepoint screwdriver to make small holes in the serial-connector on the motherboard (gently with a hammer) then i push pins in through the holes - it works for me :slight_smile:


There are many usb-serial connectors available on amazon and aliexpress and as long as they have 'txd' 'rxd' and 'gnd' they should work. I recommend buying some pins and various cables too.

There are some links to amazon by maze earlier in this thread - here are some example links at aliexpress, but a local electronic store should have these things. Pins, cables with female and male connectors and usb-serial adapter

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That is very risky and not recommended, better use a small (hand-) drill instead (smaller diameter than the hole) - not a professional solution either, but lower risk. The solder pads and traces are fragile and the solder makes a rather good bond, going at it with brute force poses a rather high risk of permanent damage, the pads might rips off or lose connection to the other side (in case of vias), the PCB might shatter, you might end up with shorts between the layers, just don't.

I was wondering if W6d might be even better choice, if you don't explicitly need 6 GHz and price is the same?

And any thoughts regarding Acer Wave 7?

Wifi7 support haven't come very far in Linux.

I was wondering if W6d might be even better choice, if you don't explicitly need 6 GHz and price is the same?

Though Vero's 6 GHz wifi will help for a (too short) while if your neighbors own large collections of AC routers, the W6d's 2.5GHz ethernet port (and maybe the USB3 port) makes it seem advantageous if you (as you mentioned) do not need 6 GHz wifi (and if you use or intend to use other 2.5G lan devices). The W6d (as the W6) also helps very much if all your ceiling lamps are broken and you need a router with 64 bright leds.

But prices fluctuate very frequently. It may be beneficial to search or wait for a cheap offer. Best prices I have seen so far:

  • W6(e): 95 € / $ 100
  • W6d: 69 € / $ 74
  • W6m: 58 € / $ 62

Have fun.

And any thoughts regarding Acer Wave 7?

Cheap machine. Acer cut down costs, designed a IPQ5312/QCN6422 machine (quad core A53 @1.1GHz) but did not provide an additional QCN6432 for a third wifi band.

Wave 7 is so... simply no.

Hi @fer, @maze, @Pulver, and other users of Acer Connect Vero W6m: good news, I think.

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"too short" , you mean range is poor?