HELP! NAS540 constantly beeps

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  • BjoWis
    BjoWis Posts: 33  Freshman Member
    First Comment Friend Collector
    edited August 2022
    I have run into the same issue after flashing my NAS540. It doesn't boot up and the reset button doesnt work.

    @Mijzelf Is there a user guide how to hookup the serial port? The one you have linked to is not for newbies like me.

    First of all I can't figure out where J1 is on the image of the PCB (maybe I need new glasses?)
    What's the next step when the serial port is hooked up?

    Any help or guideline is appreciated.

    Greetings from Sweden

  • Mijzelf
    Mijzelf Posts: 2,762  Guru Member
    250 Answers 2500 Comments Friend Collector Seventh Anniversary

    >First of all I can't figure out where J1 is on the image of the PCB (maybe I need new glasses?)
    >What's the next step when the serial port is hooked up?

    It used to be possible to zoom in on the photo, but unfortunately archive.org didn't store the high-res photo. The connector can be found on the bottom of the photo, at about 1/3 of the right. It's the 5-with-one-pin-missing connector. (Most ZyXEL hardware have such a 5-1 connector).

    The next step is just look at the boot messages. Both bootloader and firmware print their output to the serial port. It might be possible to find why it doesn't boot. (Which doesn't guarantee it can be fixed, then)

  • upscalevalley
    upscalevalley Posts: 5
    Hello all. I am face a bit similar issue but my NAS beeps after putting disks inside. Let me know the solution. :/
  • ikubuf
    ikubuf Posts: 142  Ally Member
    5 Answers First Comment Friend Collector Second Anniversary
    edited August 2022
    Do you have any data inside the disk? If you do not have any data, try to pull out the disk after shut down the NAS, and turn on the NAS, will the NAS still beeps?
    If the NAS do not beep, try to plug in the NAS when NAS shutdown, and turn it on after make sure the disk are plug in correctly.

  • efji81
    efji81 Posts: 2
    First Comment
    Mijzelf said:
    NAS540_521AATB3C0_Upgradekey.zip should do.

    This link is´t working any more. Could some one post it again or better post a USB drive for a NAS542...my nas wont start correct.
  • efji81
    efji81 Posts: 2
    First Comment
    Mijzelf said:
    NAS540_521AATB3C0_Upgradekey.zip should do.

    This link is´t working any more. Could some one post it again or better post a USB drive for a NAS542...my nas won´t start correct.
  • Mijzelf
    Mijzelf Posts: 2,762  Guru Member
    250 Answers 2500 Comments Friend Collector Seventh Anniversary
    Try http://metarepository.tk/Users/Mijzelf/RescueSticks/

  • Orrpan
    Orrpan Posts: 1
    First Comment

    my nas540 also got stuck in boot after doing this. I hooked it up with serial and it is the error where it stops at T T dhcp 192.168.1.199. Haven’t figured out how to fix it, searched the forum and there’s alot of these threds but nothing worked so far.


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