Bricked trying BIOS update

Bricked trying BIOS update

TechTablets Forums Chuwi Forums Chuwi Hi12 Forum Bricked trying BIOS update

This topic contains 139 replies, has 39 voices, and was last updated by  Vassilis 3 months ago.

Viewing 15 posts - 121 through 135 (of 140 total)
  • Author
    Posts
  • #67721

    Alessandro Bonarelli
    Participant
    • Posts: 2

    Ok, well if my idiocy ever needed confirming it turns out I’d been flashing the BIOS for the 8300 cpu version and I have the 8350. I found a link on the first page of the BIOS download page on the for the 8350 and flashed that and it’s now booting and working in Windows although only on an external monitor. The built in monitor doesn’t even display in the bios or android so I suspect this may still not be the correct version and have emailed the mods on the chuwi forum. I’ll update with my progress.

     

    Same for me 🙁

    Hi all I’m Alex from Italy, my poor chuwi lasted 2 weeks and that PUF, bricked bios.

    Today I received the programmer, clip and voltage and i tried to flash the bios. Bios has been writted succesfully, but now the tablet  doesn’t turn on maybe because the battery is very low (3.38V).

    Thanks for this guide, I’ll update later

    #67724

    Alessandro Bonarelli
    Participant
    • Posts: 2

    Quick update: 5 minutes after my last post, I was able to switch on chuwi and log in into windows.

    It seems to work for now, i’ll wait for battery at 100% then I’ll close the back cover.

    Many thanks for the guide, it’s very very very clear and helpful.

    #71665

    Stefan Costache
    Participant
    • Posts: 1

    Hey guys!

    i bought the same programmer as in the tutorial posted. I installed the driver for the programmer but when I open the programmer software the device state is: not connected. I tried several times on different computers running Windows 7 and 10. What am I doing wrong. Any ideas? Please help me bring my Chuwi back to life!

    Thanks,

    Stefan

    #71843

    Wilson
    Participant
    • Posts: 1

    Every CH341A 1.29 programmer file I locate on the net has a Trojan virus in it. What give. Please post a working version.. thanks

    #71898

    David
    Participant
    • Posts: 2

    I have a bricked HI-13 in my hands. Unsoldered BIOS and EC eeprom and reflashed them with the V14 bios.

    I needed to unsolder the W25Q64 because it’s didn’t got 1.8v on the VCC pin when on board. Once unsoldered and using a 1.8V line converter, I was able to program it.

    Battery is around 8V. When pressing power button, EC bios gets 3.3v for 13-14s and 5v line is also ok. Still no 1.8V on main bios, thus probably CPU doesn’t get powered either. Black screen and no leds

    Somebody a similar experience ?

    #72214

    Henry Atcorner
    Participant
    • Posts: 26

    Hi,

    Here is a Dropbox link to the CH 341 I used 15 month ago no TRJAN, worked fine.

    Good luck

    Henry

    https://www.dropbox.com/sh/xst9l5h03bjg86p/AABw0nA4U4pmKv1QQSZ5iPq6a?dl=0

     

     

    #72215

    Henry Atcorner
    Participant
    • Posts: 26

    Ran in the same problem, with W7, fortunately I had an old XP, which solved the problem. But I read somewhere that drivers for W7 do exist.

     

    Henry

    #72386

    SeanD
    Participant
    • Posts: 3

    Just like JB, I flashed z8300 bios on my z8350 tablet. Clearly my prior research efforts were insufficient.

    IMHO, info on the Chuwi forms is fragmented, and the language is unclear, as the number of people having similar problems attests. I think this is something Chuwi can improve. It should be easy for a BIOS flash procedure to verify the hardware is indeed correct before proceeding. Other firmware updates I’ve done were ‘foolproof’ in this respect. If something can be checked automatically, it should be checked automatically!

    I purchased from the Chuwi Intelligent Store on aliexpress. I am in touch with them to see what can be done, and how much it may cost. Return shipping to China from here will be about €30. If they’re kind enough to repair and return it for free, I’ll probably do that. Otherwise, I can order the flashing gear from the UK for about €30, and receive them in a week.

    If I do flash my BIOS, my Windows product key (in the ACPI tables) will be wiped. I don’t know if that will cause problems for the existing Windows installation, which has already been activated. Even if not, I don’t know if it will cause problems later, at upgrade time. I recall posts on the Chuwi forum indicating that you can use standard windows key extraction software to view your key, and then some specialist AMI software (possibly linked on Chuwi forum) to set that key in your bios directly from Windows. This additional fuss with product keys is another reason why I’d prefer if Chuwi can fix this for me.

    I’ll post any response I receive. The first one asked me for a video of the bricked tablet. The second asked me to charge for 36 hours. Waiting on the third.

    #72483

    SeanD
    Participant
    • Posts: 3

    I’ll post any response I receive. The first one asked me for a video of the bricked tablet. The second asked me to charge for 36 hours. Waiting on the third.

    Third response: Hold power button for 16 seconds. I said I tried that.

    Fourth response: Send a video of how you did the update. I just sent this.

    Also stated in fourth response “if you return to us to test it ,the shipping fee is too expensive”, so this may lead nowhere.

    #73294

    Adam
    Participant
    • Posts: 1

    Hi!

    <span id=”result_box” lang=”en”>Thanks for your guide, I saved my Hi10 Pro, the .bin file I got from email service chuwi.
    Thanks a lot for you. You are great.</span>

    #75575

    Catalin
    Participant
    • Posts: 1

    I have a bricked HI-13 in my hands. Unsoldered BIOS and EC eeprom and reflashed them with the V14 bios. I needed to unsolder the W25Q64 because it’s didn’t got 1.8v on the VCC pin when on board. Once unsoldered and using a 1.8V line converter, I was able to program it. Battery is around 8V. When pressing power button, EC bios gets 3.3v for 13-14s and 5v line is also ok. Still no 1.8V on main bios, thus probably CPU doesn’t get powered either. Black screen and no leds Somebody a similar experience ?

    I have the same problem as you. My HI13 is dead after doing that infamous 1.14 BIOS update. No boot, no charging LED. My tablet serial number is Q64G45170901726

    Did you manage to repair your tablet ?

    Thanks.

    #141287

    Joe
    Participant
    • Posts: 1

    hello, thanks to the existence of this web type and users, where there is very useful information, I was able to recover my chuwi hi10plus from the brick, now I have it working as before and until the problem was solved that the SD did not recognize.
    I thank you infinitely, even the technical support of the brand is not compared.

    #147081

    K-MUN
    Participant
    • Posts: 18

    may i know where can download BIOS for Z8350 without erase key ?

    #147618

    K-MUN
    Participant
    • Posts: 18

    Bill Christiansen,

    thank you for your tutorial guide, now my chuwi HI12 alive again

    #147650

    K-MUN
    Participant
    • Posts: 18

    any member can slove black screen ?? using hdmi connect to tv is ok,please help me

Viewing 15 posts - 121 through 135 (of 140 total)

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