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Chuwi Hi12 Dual OS Bios Update: Wifi And Random Powering Off Fix

Chuwi Hi12 Dual OS Bios Update: Wifi And Random Powering Off Fix

Two days ago Chuwi released a new updated bios that fixes the powering off issue once lower than 40% battery. And the wifi disconnection issue (Never experienced this one myself). I’ve managed to get my Hi12 down to 3% without random any powering off so it would seem the issue is fixed. If I find any other issues I’ll be sure to report them as I continue to use the Hi12.

My unit has become my most used dual os tablet now thanks to the 3:2 Surface Pro 3 screen, dual boot and great battery life.

The bios fix is here

To flash it place the files on a bootage USB stick and then boot to it using F7 on boot. Make sure you have at least 80% battery life before doing this. Whatever you do, don’t power off your Hi12 and don’t do it on a low battery.

 

Video tech reviewer and tech blogger. I have a huge interest in the latest tech, tablets, laptops, mobiles, drones, and even e-scooters. Active in the tech community since 2008 days of the Omnia i900 Windows phone. Samsungi8910omnia.com, Samsunggalaxysforums.com founder from way back.

61 Comments

  1. Hi chairs please help me
    I have chuwi hi12 dual boot.
    After unboxing my tab and start window 10. Use after 1 hr I click on restore option then tablet start for the restoring and suddenly power supply is off.
    So then after I start tab and click on window symbol my tab screen is blinking and not start window.
    But android is working. And I can open bios also. But window 10 not open…
    So can you please give me solution of the problem.
    Sorry for my English

  2. Hello Chris, please help me, I just reinstalled the Windows 10 of my hi12, and then when it finish, my Windows is not activated and the quality of speaker is bad now, it seems different sound quality with the previous ….. How can I solve this? Please help me

  3. Just got my chuwi hi12 dual boot today after long wait, unfortunately the device wont turn on..Charging LED blinking but nothing on the screen,pushed rocker button and it does make sound like it supposed to..Does anyone here ever experienced this issue?,mind to share how to solved the problem please..

    • Screen must have come unplugged in transit. You might have to return it. Or open it up and look for a loose cable (Not recommended)

  4. Hi hows after update May 18Th i can check if the BIOS is correctly updated? Is it possible to read the version anywhere? Thanks!

  5. ATTENTION:
    Until there is a solution to the HI-12 sudden death syndrome., I highly recommend that everyone disable automatic driver updates in Windows 10
    Read this for the method to do this. Its quite easy.
    http://www.cnet.com/how-to/stop- … y-updating-your-pc/

    NOTE: This is not the same as postponing Windows Updates, I don’t recommend stopping all windows updates, just drivers.

  6. Hi, just got my Hi12 dual boot yesterday and tested it, was able to empty the battery with no shutdown issue ; my wifi seems to work fine as well.
    Is there any way to check my BIOS revision to see if I need to do the update ?
    I was also wondering if there is any information about the speed of the TF (microSD) port. I want to buy a 128Gb card (with the dual boot the free space on the 64Gb storage seems low, about 10Gb on the Android partition and about 30Gb on the Windows one), but I don’t want to spend unnecessary for a card too fast for the card reader…
    Thanks in advance.

    • The reader will support UHS cards. If you don’t have the powering off issue you would be on the latest bios. Seems about right if you just got it.

      • So far I also do not have issues with powering off or wifi. I use the tablet for 4 days. Can anybody please give the version of the new bios, so that when I enter bios I can be sure is the latest version?

        • Still no issue with mine.
          I went to my BIOS though, and found this :
          BIOS Vendor : American Megatrends
          Core Version : 5.011
          Compliancy : UEFI 2.4; PI 1.3
          Project Version : e4D6_HI-122LP.223 x64
          Build Date and Time : 04/28/2016 21:25:30

          • It seems that is the last bios version. I found this on Chuwi forum:

            http://forum.chuwi.com/thread-1160-1-1.html

            Where it says latest version with fix for wifi and reboot is 5.11 from 28/4/2016.

            I have the same version. Obviously newer batches come with latest bios installed which is great.

            • Make sure you turn off automatic driver updates or you could suffer tablet death syndrome

    • Just to add that it seems to max out about 40-50 Mbs reads and writes on my Hi12 using a Samsung 128GB Pro+ MicroSD. Still much faster than the old slots that would reach 23Mb/s max.

      • If you set the device optimize for speed. Not removal it will be faster. Just remember safe eject

        • Yep forgot about that! Now it’s a little faster.

          • It will make a significant difference if you are copying lots of small files

          • You can also disable partition indexing and prefetch on both eMMC and SD card. Disabling the pagefile should be a good thing, too, I do it on all my computers with an SSD in it.

    • As long as you format the SD card as Fat32, both windows and Android can share the same storage space.
      Just format the card from Android , WIndows will not directly format large cards as Fat32.

  7. Looks like Chuwi may have a big problem with the Hi12, Several people are reporting that after a WIndows update, the tablet may become unusable and appear to be dead. So far no answers from Chuwi about how to fix this issue and the only option at this time appears to be return for repair. If I hear anything more, I’ll update you here.

    • ATTENTION:
      Until there is a solution to the HI-12 death syndrome., I highly recommend that everyone disable automatic driver updates in Windows 10
      Read this for the method to do this. Its quite easy.
      http://www.cnet.com/how-to/stop- … y-updating-your-pc/

      NOTE: This is not the same as postponing Windows Updates, I don’t recommend stopping all windows updates, just drivers.

  8. I just bought CHUWI HI 12, and I updated it, but when I restart it.
    It did not restart again, any one help me solve this problem.
    Thank you.

    • Looks like Chuwi may have a big problem with the Hi12, Several people are reporting that after a WIndows update, the tablet may become unusable and appear to be dead. So far no answers from Chuwi about how to fix this issue and the only option at this time appears to be return for repair. If I hear anything more, I’ll update you here.

    • There may be a solution, but its not an easy solution.
      WARNING I have not tried any of this so I have no proof it will work, but this may be a solution. Proceed at your own risk.
      http://techtablets.com/forum/topic/unbricking-a-hi12-dont-try-dual-boot-yet-s/

  9. will this Atom based tablet ever get Marshmallow or Android_N,
    considering Intel is planning to dismiss it’s atom line for more profitable M line?

    • Intel has said it will keep the existing Cherry Trail and Sofia chips on the market to support tablet customers, the spokeswoman said.

      The Atom architecture will continue to have broad coverage, just not in smartphones, said Dean McCarron, principal analyst at Mercury Research.

      “Atom is anything but dead,” McCarron said, adding the architecture is key to the company’s future in low-power devices.

      The Goldmont architecture could appear in chips for Internet of Thing devices and also servers. Atom chips are already being used in communications and storage hardware, and those too could be targets, McCarron said.

  10. This is great news. I’m waiting (not patiently lol) on my Hi12. How do I update the bios? Is it like a firmware update? Thanks!

  11. I read this article (Chuwi Hi12 Dual OS Bios Update: Wifi And Random Powering Off Fix) and updated my Hi12 Tablet.
    But I have some problem that screen is blink. (maybe twinkle..).
    I guess that Update Bios crash with RTL8723BS Wifi chipset. Because When I use the internet with USB-LAN, it is normal.
    But, When I use internet with wireless RTL8723BS( intergrated tablet) , abnormal screen problem occured.
    (Hi12 Dual Boot ver.)

    https://youtu.be/UFXX8-fdvyE

  12. hello, i have serious issue
    i don’t have a keyboard but i said i could try and it may auto boot to USB So i put all files to USB FAT32 and winpe as name and shutdown the tablet and attach the USB. i saw USB is flashing and try power tablet on but nothing! removed usb and trying but nothing.
    put into charger and saw the led working and tried to power on but nothing and after the led not flash anymore and couldn’t charge the tablet nor power it on. so looks dead!
    I don’t know if it’s BIOS break as it may booting automatically and shutdown happen or it’s power issue! short or something!
    very annoying as moving from shutdowns issue to a dead tablet!
    tried to open the back cover and see if any loose connectors but all looks good for me.
    i tried using OTG cable and found the tablet able to charge a mobile which sounds it like already up!
    Any advice please?????

    • Chuwi may have a problem with the Hi12, Several people are reporting that after a WIndows update, the tablet may become unusable and appear to be dead. So far no answers from Chuwi about how to fix this issue and the only option at this time appears to be return for repair. If I hear anything more, I’ll update you here.

      • Which update? An update from today? I’ll try mine and check it out, if you don’t see a reply from me it went fine.

        • I’m trying to get the details. it’s not specific to today. Multiple users on multiple forums have reported it over the last week, but most people let Windows automatically install updates so far no one has been able to provide that information and since their tablet is now dead, they can’t obtain the information.
          The symptoms are the Windows does an update and schedules a reboot, When the tablets shuts down to reboot the power light goes out and then nothing, no charging light, no power light, no boot, can’t boot to BIOS, just dead.

          • Hello

            I have the same problem with my new dualboot hi12! Under Windows 10 -> Device Manager –> firmware update is the problem! If you make a update in device manager the windows update runs fine –> After restart a script is running and then was my hi12 dead! No light, no reaktion on any button or usb charger! I also don`t get a answer from emily (chuwi) about that

            • Why would you be messing with those drivers? They manager the UFEI secure boot keys.
              Even if you load the wrong drivers in device manager, this should never prevent the device from booting into BIOS, but it might prevent Windows from booting. That’s what secure boot does and secure boot can be turned off in BIOS, so this under normal circumstances does not explain the failures. Of course Chuwi could have made a large boo-boo and be overwriting BIOS code.
              Normally secure boot information is required to be stored in a separate memory device.

              Anyway, what I am trying to find out is of the normal Windows Update, which runs automatically and updates Windows software, not the device manager causes this problem.

              Your discovery might be a clue. For a properly designed PC , the worst that should happen would be a failure to start Windows. Most times loading the incorrect driver even in the firmware section just causes a “device cannot start” indication in device manager.

          • Windows 10 are also do automated driver updates

            • Indeed, but not without a trail. So what i am trying to determine is DOES Windows Update, a normal automatic update that everyone receives trigger this failure?
              So far, it appears no, otherwise there would be a massive amount of dead tablets. If that’s not happening, the Chuwi will claim it’s user error. However unless its a very poor hardware design, the user should never be able to cause this problem. See where I’m going? So what is unique to the people that are having this tablet death issue?

          • Here is a link to offical forum: Same problem

            http://forum.chuwi.com/thread-1486-1-1.html

    • Until there is a solution to the HI-12 sudden death syndrome., I highly recommend that everyone disable automatic driver updates in Windows 10. Chuwi is aware that a recent driver update that may be automatically downloaded unless you do this may brick your tablet. They are working to resolve the driver update issue, but I don’t think there will be any way to recover if your tablet is already dead.
      Read this for the method to do this. Its quite easy.
      http://www.cnet.com/how-to/stop- … y-updating-your-pc/

      NOTE: This is not the same as postponing Windows Updates, I don’t recommend stopping all windows updates, just drivers.

  13. Stylus performance look good for me(even it might not be better than Wacom stylus) but hope Chuwi will release rechargeble stylus in the near future(cuz in my home town it hard to find AAAA battery so I prefer rechargeble type), if they do I think this is a good choice for me instead of waiting for Cube i9 stylus.

  14. Hi Chris, I am waiting for my Hi12 anyway now and it is great to know that there is already a fix. How do I go in BIOS? Is it DEL, ESC or some other button?

    • Del or Esc on boot, I just tap both of them when it’s booting up and it enters the bios.

  15. Hi.

    Is there some improvements on touchscreen sensitivity ?
    Since the beginning (4th may), i have a very bad sensitivity touchscreen on my dualboot model. Thanks to loly in this post : http://forum.chuwi.com/thread-1277-1-1.html , I can solve the problem in windows but not in android. Anyone is concerned with this problem of touchscreen sensitivity ? Sorry for my English and thanks for your website.

  16. Hi, first thanks for great work you are doing for us with your reviews etc…
    Well I have a question about this tablet. Im searching for dual boot tablet mostly for reading manga, play few games and work on windows 10 (mostly administrative work).
    So Im kinda interested in HI12, cause it have 3:2 resolution, which is like 4:3 better on manga read then 16:10(16:9) on 10.1″.
    Would you recommend this one for me or another one? Can have this one in my country for aprox 247 euro with 2 years warranty.

    • I cant speak to Manga but I read comics on mine (marvel unlimited and CBR files) and the tablet both looks AMAZING but the system keeps up pretty good (I find I have better experience with comics in android apps just FYI). It also chews through PDF’s no problem (relatively large 300-400 page reference material pdf’s in my case). I also love that the tablet is passively cooled (no fans), never gets hot to the touch, and makes a great “in bed” tablet for reading and other quiet activity since my wife often falls asleep before me I can read without bothering or disturbing her!

  17. Chris random spot to ask the question but in your original review you looked like you had a positive experience with Steam In Home streaming on your single OS model. I’ve having issues getting consistent results out of my Hi12 and I was hoping to ask about your experience. In the video your stats were not displayed (streaming stats) and its hard to quantify some things just by looking. Can you clarify the following?

    1. What model? Fast/Beautiful where you running in?
    2. Do you manually set your bandwidth or leave it on auto?
    3. If you turn on your stats are you seeing 60fps streaming?
    4. Whats your ping time (not input latency but total streaming latency)
    5. Whats your frame loss % if any?
    6. Hardware encode on your desktop – are you using nVidia or AMD?
    7. Wireless N or are you using a wifi dongle to get wireless AC?

    In my case I can get 60fps and if i tweak my allowed bandwidth I can improve my end result but even with a relatively low bandwidth setting I am still seeing frame loss on average in the 5-20% range which results in a stuttery mess! From the review video it looked relatively smooth but it also looked like it might have been running at closer to 30fps which would place less load on the decode as well. I’m trying to find the issue because the system in THEORY should be plenty powerful (I have used numerous Bay Trail based machines with less powerful chips and gotten buttery smooth 60fps). In my case the issue seems to be 100% client side and I’ve tried on the built in wireless as well as a Wireless AC dongle and the issue seems 100% related to actual decode and not to do with network latency

    • Hi John, it was the first batch Windows only model using the build in wireless N. My desktop is an i7 4770 @ 4.5Ghz and a AMD R9 290X. I never stream myself only in these videos to test. So the settings I used were the default ones. I never touch them. It’s smooth and when I ran it was smooth and fluid as seen in the video. Hope that helps a little, if I get time i’ll check it out

  18. Great news I’m waiting on the arrival of this tablet.

  19. thanks from a single os user.

  20. Awesome! I have never run my batt that low, but my wifi was disappearing inexplicably (X over discoverable networks). Drove me nuts!

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