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Open box APX 120: solid red LED as soon as plugged in, no blinking orange/green LED. Restart does nothing.

alan weir

I purchased an APX 120 used. The access point presents a solid red LED as soon as it's plugged in. Doing a quick, or even a full reset by holding the button down in the back does not reboot the device. It stays a solid red color.

I suspect it may be bricked, but the manual says the solid red color could indicate the APX cannot find the wireless controller, or if the reset button is pressed... it is initiating a configuration reset. I allowed the device to sit for several minutes.

In the UTM 9.7, It showed no wireless protection log or a pending access point.

I am using the power adapter of my AP15 to power the APX120 which appears to be the same 12V 1 amp power supply, as the access point lists on the back as the requirement.

Does the unit have issues with a power supply and should I use a POE injector instead? The manual says the APX can be powered with an APX120 power supply which is also 12V, 1 amp, 12 watts.

The Sophos flash tool does not even support this access point, so short of using one of those USB/Eth cables, could there be something I'm overlooking or doing wrong? 

The power adapter I am using powers the AP 15 with no issue, so either the APX needs different power or a POE injector. Here is the AP 15 power supply.



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  • 0

    Unfortunately bricked APX 120 are very common. There has been a software issue (in the UTM) which bricks them upon updating.
    If you don't see any DHCP requests (and bought it on eBay very cheap Wink without warranty) this is very likely.

    Using the Sophos flashing tool (it requires an network connection to the boot loader) or alternate power will not help.

    If you have an strong electronics background and are used to the mentioned tools, here is a very good tutorial for unbricking them.
    I managed to rescue several APX 120 bought via eBay for 1€ by following it.
    Thanks to btw, for posting the relevant memory addresses - he got them from an working APX.

    In case you don't dare or don't have the right tools your best bet is that they are still on warranty and will be replaced by Sophos.

  • 0 in reply to Alan Brand

    Bricked... that's what I thought since the RED LED came on solid as soon as I first plugged it. I mean as *soon* as power from the adapter hit it, so I doubt the UTM even had a chance to see it in order to flash a bad firmware image.

    The seller's policy is "RMA required" for all non-functioning products, so I hope I will not get the runnaround if the AP is still under warranty.

    Does Sophos's warranty on access points carry over when the item is sold to a different person? I sure do not want to open the product and void any warranty. I know my way around SSH/linux commands but I want to see what' they'll do for the return.

  • 0 in reply to alan weir

    Weary

    now i bricked my APX320 ..

    I had it running with OpenWrt after enabling the bootdelay and loading an older APX.uimage...

    Press the [f] key and hit [enter] to enter failsafe mode
Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level
Please press Enter to activate this console.

BusyBox v1.23.2 (2018-11-27 07:01:45 UTC) built-in shell (ash)

root@OpenWrt:/# ls

bin     download lib        proc    sbin    usr
config  etc      mnt        rom     sys     var
dev     init     overlay    root    tmp     www

    I modified the bootdelay and stopped uboot, loaded a different Kernel image, started config@1 and downloaded a correct APX.uimage for upgrading to 11.0.020 out of the of OpenWrt ecosystem ...

    currently i get this error message

    libubi: error!: "/dev/null" has major:minor 1:3, but this does not correspond to any existing UBI device or volume
    ubiupdatevol: error!: "/dev/null" is not an UBI volume node

    but i it got bricked ..

    Now i don´t have any kernel image inside the NAND and the bootdelay is back to 0 ...

    Why does a APX320 has two Reset buttons (one pinhole and one SMD under the heatsink - both do a reset).

    Now i have to Glitch the NAND again ... Grin

  • 0 in reply to alan weir

    I think only the original customer gets a warranty.
    But for these APX320 i could keep the broken device. 

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