Bricked tablet

Bricked tablet

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Viewing 15 posts - 1 through 15 (of 15 total)
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  • December 14, 2016 at 11:21 am #58609
    Bruno
    Participant
    • Posts: 24

    @Chris G

    December 14, 2016 at 12:18 pm #58613
    Bruno
    Participant
    • Posts: 24

    Can I use the 8MB file from the bios update zip?

    December 14, 2016 at 1:17 pm #58622
    Vedran
    Participant
    • Posts: 54

    Would be useful to know all numbers apart from the last four in order to determine BIOS version needed.

    December 14, 2016 at 1:35 pm #58624
    Bruno
    Participant
    • Posts: 24

    PQ32G22151104136

    December 14, 2016 at 3:02 pm #58629
    Bruno
    Participant
    • Posts: 24

    Could someone with an SPI programmer dump the bios image?

    December 14, 2016 at 9:03 pm #58653
    Vedran
    Participant
    • Posts: 54

    My tablet is in the same batch as yours. You can find Chuwi recommended BIOS for (y)our serial number here:

    http://forum.chuwi.com/thread-225-1-1.html

    Personally, I had a pro put May BIOS for Dual OS Hi8 Pro. Since I did that it works amazingly good – running Build 14393.447.

    Unfortunately, I sacrificed bluetooth due to drivers issue. So my solution is not for everyone.

    December 14, 2016 at 9:30 pm #58654
    Bruno
    Participant
    • Posts: 24

    Do you have an SPI programmer?

    December 15, 2016 at 12:01 pm #58725
    Vedran
    Participant
    • Posts: 54

    No, I like I said, I gave it to a pro to do it.

    December 15, 2016 at 11:02 pm #58758
    Bruno
    Participant
    • Posts: 24

    I need to use the 8MByte .rom file from the bios update zip as it is the full bios image, but what will happen to the Windows product key (MSDM) stored in the bios?

    December 15, 2016 at 11:42 pm #58762
    Bruno
    Participant
    • Posts: 24

    And which 64-bit bios is safe to flash on the first batch of the singleboot Hi8 Pro?

    December 24, 2016 at 12:14 am #59162
    shinebar
    Participant
    • Posts: 3

    I had the “black Screen, no LED, noch charging” – issue as well (S/N PQ32G221604) and just programmed the bios with the SPI-adapter. First the official Bios from the Chuwi-Forum, after that the one with the fix for the SD-Card. Both doesn’t change a thing – any hints for me?

    Battery is 3.7 Volts (when disconnected from the Mainboard). USB-Current is arround 0.15 Amps @ 5.1V when plugged in, but no led etc.

    January 9, 2017 at 11:05 pm #60184
    Bruno
    Participant
    • Posts: 24

    I managed to unbrick it.

    First press Erase, then press Blank to verify the chip is empty, then load the 8MB file from the bios update zip and press Program.

    January 10, 2017 at 9:17 pm #60241
    shinebar
    Participant
    • Posts: 3
    Bruno wrote:

    I managed to unbrick it. First press Erase, then press Blank to verify the chip is empty, then load the 8MB file from the bios update zip and press Program.

     

    Hm. Tried that again, Erase, Blank, Write, Verify without any Errors – no sign of life until now. I think I’ll leave the tablet on the charger for some hours.

    January 11, 2017 at 10:15 pm #60284
    Bruno
    Participant
    • Posts: 24

    Maybe you’re not using the correct bios. Do you have a singleboot Hi8 Pro?

    January 14, 2017 at 6:40 pm #60434
    shinebar
    Participant
    • Posts: 3

    Yep, it’s a dual-boot Hi8Pro and I flashed the BIOS I’ve downloaded from the Chuwi-Forum. I tried both files, the one with the sdcard-fix and the one without. 🙁 No blinking, no charging, just the cpu gets a Little bit warm and the tablet consumes arround 150ma
    Since a few days the Chuwi-Dropbox has been disabled, I tried to doublecheck, that I’ve downloaded the right Version. Is there a known mirror?

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