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PRDU
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Failed BIOS update

HP Recommended
15z-cw100
Microsoft Windows 10 (64-bit)

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I updated BIOS as prompted by HP assistant but as it went through its setup stages. My screen even flickered for almost or over a minute as prompted I imagined it to be a regular process. After that it restarted but the BIOS update failed and my laptop now continuously performer BIOS update/recovery in a loop. It says writing BIOS image then verifies but fails to verify and then restarts and starts the same step again. I have tried restarting. Then cold/powerbooting, followed that with press and hold win+b + power button hold 2-3 sec, and press hold win+v +power button hold 2-3. After trying each of above mentioned options it keeps going back to the same BIOS recovery loop.

I then also tried power and F1,F2,F8,F9,F12 button still keeps taking to the same recovery loop.

I am not able to access boot menu at all as I have already made a recovery USB stick (bootable) by downloading HP cloud recovery app.

is there a specific way or any way I can acces boot me ur so I can boot my laptop with the help of USB stick I made?

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ONURKRKY
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absolutely i have same issue. I send the pc  service and wait for it, do u have any solution ?

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PRDU
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I have not found any solution to the issue. I had multiple support sessions with HPSUPPORTASSISTANT (via WhatsApp) but they weren’t able to solve it and advised me to take it to service center. I personally had to drop it to a third party repair center they haven’t been able to pinpoint the issue yet. They say SSD card is fine but if the swap it for a new one the display doesn’t work, with the same SSD it keeps going on the same loop. So it’s been a frustrating experience. Unfortunately where I am there is only third party authorised repair centre so they say it will take at least couple of months for warranty claim for any replacement parts (which I am really annoyed about. I could have courierd my laptop instead to designated country for quicker turnaround time.)

it would be handy if you could share the trouble shooting/repair done on your laptop if you have your repair  done quicker and earlier. I could probably share that information with the repair center here.

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ONURKRKY
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ı found same case like us and most of them had to replace  motherboard. ı will share any solution if they can .

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ONURKRKY
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ı got feedback from service, They found motherboard failure and they are going to replace mobo.

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PRDU
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Hey Thanks for the update. I’ll follow up with the repair center since this is not an isolated issue they should replace motherboard as per warranty terms.

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