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  1. Joined : Oct 2015
    Posts : 10
    Windows 10
       16 Oct 2015 #11

    halasz said: View Post
    You could try plugging into external monitor (display issue?) and/or removing the hard disk (this might force it to boot from USB/DVD).
    I've tried your method and taken out the hard drive, but it still won't boot from disc. By the way I don't have an external monitor so I don't know if it's a display issue

    from dalchina; Ok, understood- you can't get to BIOS.. (which should be F2 for your laptop, as you know).

    Do you hear any sounds- 'BIOS beep codes'?

    (Here's your manual)
    Download ASUS S551LN English user manual in PDF

    From pg 83 of your user manual, you need a working BIOS before you can flash it..... Hmm.

    I'm beginning to wonder if you need to refresh your BIOS- if that's possible... maybe sthg was corrupted when you saved the setting update..? But how... without the ability to get into BIOS? Hmm.

    For reference:
    Flashing your BIOS: you'd need a utility and the BIOS itself from
    ASUS VivoBook S551LN | Notebooks | ASUS Global


    (You've a choice of Win 8 or Win 10 before that).
    Nope it doesn't have any beep sounds. As for the BIOS flash utility thing... because laptop just will not do anything, I can't seem to update BIOS.

    Hi, this is read from an HP forum, not ASUS- I've no idea if it applies.. but you can try it!
    Here are the steps:



    1. Turn off the computer.
    2. Hold down the windows key + b and power on the laptop without letting go.
    3. Here's the magic: while holding down windows key + b, then press F2.
    4. The laptop will enter BIOS recovery mode, and you should be all set from there.
    Thanks for your effort, but it still doesn't do anything
      My System SpecsSystem Spec


  2. Joined : Oct 2015
    Posts : 10
    Windows 10
       16 Oct 2015 #12

    NavyLCDR said: View Post
    One way to force your way into BIOS is to open the cover over the hard drive (probably 2 to 4 screws to remove and a little prying to get it off), unplug the cable from the hard drive. Do not have any USB devices plugged in. Remove the power cord, remove the main battery. Press the power button and hold for a few seconds to drain any residual power. Put only the main battery and power cord back in. Press the power key to power back on - again with the hard drive disconnected and no USB devices plugged in.
    I could try your method only if my battery was removeable. It's a built-in battery so I can't just disconnect the cable that's connected between the mobo and the battery itself.
      My System SpecsSystem Spec


  3. Joined : Oct 2015
    Posts : 10
    Windows 10
       16 Oct 2015 #13

    NavyLCDR said: View Post
    One way to force your way into BIOS is to open the cover over the hard drive (probably 2 to 4 screws to remove and a little prying to get it off), unplug the cable from the hard drive. Do not have any USB devices plugged in. Remove the power cord, remove the main battery. Press the power button and hold for a few seconds to drain any residual power. Put only the main battery and power cord back in. Press the power key to power back on - again with the hard drive disconnected and no USB devices plugged in.
    I could try your method only if my battery was removeable. It's a built-in battery so I can't just disconnect the cable that's connected between the mobo and the battery itself.
      My System SpecsSystem Spec


  4. Joined : Jan 2015
    UK, Midlands
    Posts : 6,606
    Win 10 Pro (1607)
       17 Oct 2015 #14

    Slightly puzzled- batteries fail, so need replacing, and this is (probably) a replacement battery:
    asus VivoBook S551LN-1A Battery, Replacement 6-Cell asus VivoBook S551LN-1A Laptop/Notebook Battery

    So is yours particularly inaccessible? I saw one laptop disassembly where most things had to come out to get at the battery- Asus X551CA (not yours) but can't find a video or instructions for your model.

    You said you've removed the CMOS battery (probably a small round silver one). For more modern BIOS using flash memory, that's independent of that battery- which is just to keep the clock ticking.

    Increasingly sounds like either your BIOS has been corrupted (why? - unknown) or some other hardware problem (strange coincidence).
      My System SpecsSystem Spec


  5. Joined : Aug 2015
    Posts : 8
    windows 10
       18 Oct 2015 #15

    usb keyboard maybe?


    Since the built in keyboard doesn't seem to work to get into the bios have u tried a usb keyboard yet?
      My System SpecsSystem Spec


  6. Joined : Oct 2015
    Posts : 10
    Windows 10
       18 Oct 2015 #16

    sl2222 said: View Post
    Since the built in keyboard doesn't seem to work to get into the bios have u tried a usb keyboard yet?
    I've inserted 2 bootable USBs and it won't boot into them, let alone detecting a USB keyboard.
      My System SpecsSystem Spec


  7. Joined : Oct 2015
    Posts : 10
    Windows 10
       18 Oct 2015 #17

    dalchina said: View Post
    Slightly puzzled- batteries fail, so need replacing, and this is (probably) a replacement battery:
    asus VivoBook S551LN-1A Battery, Replacement 6-Cell asus VivoBook S551LN-1A Laptop/Notebook Battery

    So is yours particularly inaccessible? I saw one laptop disassembly where most things had to come out to get at the battery- Asus X551CA (not yours) but can't find a video or instructions for your model.

    You said you've removed the CMOS battery (probably a small round silver one). For more modern BIOS using flash memory, that's independent of that battery- which is just to keep the clock ticking.

    Increasingly sounds like either your BIOS has been corrupted (why? - unknown) or some other hardware problem (strange coincidence).
    I think I might have to replace the motherboard. Could you tell me if it modifies my personal files or any files on the hard disk please? Thanks.
      My System SpecsSystem Spec


  8. Joined : Aug 2015
    Posts : 142
    dual boot win10/win7
       18 Oct 2015 #18

    MegaRodeon said: View Post
    I think I might have to replace the motherboard. Could you tell me if it modifies my personal files or any files on the hard disk please? Thanks.
    It seems like your PC is not posting. To answer your question, your system may not be bootable after a MB replacement, but the files should be recoverable.

    Back when I overclocked systems (way back), the recovery was a jumper on the MB to reset the bios. A second option was the CMOS battery, however, you have stated there is an irremovable battery. I have only replaced CPU/APU fans and WIFI connections on laptops, but maybe there is a way to execute that reset jumper available on desktop MB's on a laptop ?
      My System SpecsSystem Spec


  9. Joined : Oct 2015
    Posts : 10
    Windows 10
       20 Oct 2015 #19

    mrpumpkin said: View Post
    It seems like your PC is not posting. To answer your question, your system may not be bootable after a MB replacement, but the files should be recoverable.

    Back when I overclocked systems (way back), the recovery was a jumper on the MB to reset the bios. A second option was the CMOS battery, however, you have stated there is an irremovable battery. I have only replaced CPU/APU fans and WIFI connections on laptops, but maybe there is a way to execute that reset jumper available on desktop MB's on a laptop ?
    Well I've taken out the component that's apparently the CMOS battery (the round thing), but even with draining all the power in the battery, the BIOS can't be reset.
      My System SpecsSystem Spec


  10. Joined : Aug 2015
    Posts : 8
    windows 10
       20 Oct 2015 #20

    It does sound like that MB might be shot. If u get the same board or 1 that uses a similar chipset u could get it to boot.
    At any case u can always save your data. Just remove the hard drive and hook it up as a secondary drive on another system and copy all your data.

    MegaRodeon said: View Post
    I think I might have to replace the motherboard. Could you tell me if it modifies my personal files or any files on the hard disk please? Thanks.
      My System SpecsSystem Spec


 
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