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Forum Discussion

endriu's avatar
endriu
Tutor
Jul 25, 2016

After (forced) FW upgrade AirCard 785S enters boot loop with the battery pulled out

My router forcefully upgraded itself today to the following firmware:   FW Version:NTG9X25A_02.14.04.13 FW Build Date:05/03/16 Web App Version:AC785S-1_03.03.103.110 Bootloader Version:NTG9X25A_...
Firmware
Troubleshooting
navisence's avatar
navisence
Aspirant
Aug 05, 2016

I have the same issue. This is a problem since I intended to use the aircard without the battery.

 

Bought the device yesterday - it booted fine without the battery inserted. Then did the recommeded firmware update. Now the device sits in a boot loop when only connected to the included USB power supply.

endriu's avatar
endriu
Tutor
Aug 05, 2016

I found a workaround for this issue. Start the router connected, with the battery in. Set everything up, enable data transmission, etc. Let it run for a few seconds like that and then pull the battery out. It should stay up. If you do it too early it will enter the boot loop.

 

Still I would like to raise it as an issue to the manufacturer so that it could be solved in the next firmware version. Anybody knows how to do it?

  • ender1's avatar
    ender1
    Aspirant
    Oct 14, 2016

     

    me too I would confirm this issue, I recently bought this router from Amazon, model is AC785-100EUS
    and hardware revision is 1.0. I do not remember which version of firmware was when I turned it on the first time.
    I then successfully configured and started to navigate through it without battery inserted but just plugged in to
    the wall because the intent was to use it as a permanent 24/24h connection, and all worked very fine for just a couple of minutes;

     

    immediately later, infact, an update become available and I decided to install it, but when the updated finished
    the router started an infinite boot loop. I immediately thought the update didn't worked and the unit was
    irremediably fired, but after some hours of attempts I tried to insert the battery again and this time the router
    succesfully booted. The firmware is now:


    FW Version:
    NTG9X25A_02.14.04.13
    FW Build Date:
    05/03/16
    Web App Version:
    AC785S-1_03.03.103.110
    Bootloader Version:
    NTG9X25A_02.14.04.13
    Hardware Version:
    1.0
    TRU-Install:
    PHS_B4045


    The workaround of removing the battery while the router is turned on, as suggested by an user on this thread,
    it absolutely does not work with my unit, if I try to remove the battery the router immediately reboots itself
    and it starts again an infinite loop until you insert again the battery.

     

    Another issue I have noticed is that the GUI continues to advise me that an update (of 69 mb) is available,
    even if I have already succesfully installed it before: after that you have finished to install it, the router normally reboots, but when you open the GUI and you check if a new update is available the GUI propose to install it again. And so on forever.

     

    Greetings