[Jeff]

Yeah, you’d be lucky to get the warranty.

I don’t remember seeing this issue often, maybe like 1 other incident other than yours I recall. Can you share that article please?

I bought it from Gearbest cause it was the cheapest and had free DHL shipping. On March 30th 2017.

No, at least not myself that I remember… Did you try booting from USB?

[Jeff]

Ferguson wrote:

I found android v1.03 with better battery consumption than v1.06. In my case, BIOS update have not caused battery drain…

OK, if you use an app like Ampere, will it show the proper temperature instead of “overheating”? Just making sure, thanks.

[Jeff]

Sorry, can only confirm that my unit does not have this hardware issue.

May I know how many units do you have in total? I’m thinking quite a number at least since you have 2 units with this issue…

Lastly, please let us know if you can how warranty works out for you. Thanks!

[Jeff]

Ferguson wrote:

For the moment it’s working (after update BIOS from Device Manager under Windows).

Yeah, I think that bug is finally resolved. Never ejected once after that, even for days of no shutdown.

But ever since I reflashed it (not sure if caused or worsened BIOS update or not), Android has been draining battery quicker and apps detect it’s temperature as 0°C or overheating… Have you seen such issues?

I may make another thread once I really feel like troubleshooting again. Thanks again for the fresh content!

[Jeff]

Basically, it’s in Device Manager. Funny you can only update the BIOS this way… Let us know if it’s still working, I just applied it myself.

Well, my tablet was revived thanks to flashing Android via Fastboot, booting from WINPE, and then restoring Macrium image.

But I still don’t really like it, and was already reverted back to my iPad Mini (just jailbroke it)…

[Jeff]

Ferguson wrote:

I read in some forums that this problem is a bios issue, not windows issue. It’s common in other tablets (chuwi, etc.) https://forum.chuwi.com/thread-3250-1-1.html Currently, I’m testing a bios setting (go to bios, Chipset- southbridge – SCC SDIO Support-> disabled; default setting: ACPI Mode). For the momment, it is working for me (android & windows). But, be very very carefull touching bios settings. Other forums recommend SCC SDIO Support and SCC SD Card Support settings in PCI Mode (default: ACPI Mode), but in my case, windows was fine without issues, but android was not working well (random restarts)

That disabled built-in WiFi & Bluetooth on Android and Windows. When I tried PCI mode  on both, Android did indeed keep crashing, WiFi on windows was slower (worse reception) and I had to enter AP passwords again.

Then I tried SCC SDIO back to ACPI, and SCC SD Card to PCI. Android wouldn’t recognize the microSD as anything but corrupted. I rebooted, reinserted, even formatted another microSD, but all failed. Right after I rebooted with a different microSD card, it went straight to BIOS and I can’t access either OS anymore…

I was thinking of trying your settings with SCC SDIO Mode for WiFi set to DDR50, would that finally work for both Android and Windows? Anyways, I was going to restore from a disk image, but using my recovery USB requires me to boot from Windows first… Thank again regardless, are you from the Chinese forums?

*I only have 1 boot option in BIOS (UEFI: Built-in EFI Shell)… I’m screwed aren’t I? The internal disk speed was suspiciously slow.

[Jeff]

Over a year later, it has stayed more of a gimmick for me than anything… Actually, I don’t think I’ll bother summarizing what I’ve already posted, but I will say that Windows has been more lacking (and buggy) than Android. Though both are lackluster, and switching between them was less worthwhile than I expected. Definitely would not have purchased it knowing what I know now. The case and keyboard aren’t even compatible with each other…

[Jeff]

Ferguson wrote:

Hi, I tried both of them (v1.03 english, v.06 chinese). I prefer v1.03 english because it has better stand-by consumption. By other hand, it was difficult obtain write permission with sdcard NTFS format,

Oh I see, Android was updated with ability to write on NTFS partitions, correct?

But Windows stayed the same I presume? Unless it became Chinese only…

Lastly, I’m guessing the only way to switch (outside of OTA) is to reinstall the whole tablet? Probably the case since you wipe the drive as soon as you flash Android if I remember correctly…

Thanks for sharing your experience!

[Jeff]

Kim wrote:

Jeff thanks for your help all sorted now and working great

No problem. I apologize for the attitude of my previous post. I basically wrote that soon after being abruptly awoken in the middle of the night, feeling cranky. Thank you for looking last that.

[Jeff]

You mean pagefile.sys and hiberfil.sys? Just disable pagefile and hibernate / fast startup like I said… You can Google those.

Or do you mean downloading the MSU? I already provided this link: https://www.windowscentral.com/how-download-and-install-windows-10-cumulative-updates-manually

TreeSize you can Google as well. But if you actually meant resizing the Windows partition, well the link could be better, but you need to specify what you’re looking for.

[Jeff]

You can try downloading the MSU onto external drive/microSD and installing from there. Otherwise, you could try TreeSize.

[Jeff]

Found this in Windows folder (M5F8) of Chinese firmware site’s Baidu Pan. Only apparent difference other than newer date and larger size is a digital signature.

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[Jeff]

Try deleting hiberfil.sys and pagefile.sys, those take up the most space. Basically, you’ll have to disable hibernate (+ fast startup) and pagefile. Make sure system restore is disabled.

I probably did more that I can’t remember now, but those definitely take up the most space you can’t just clean. If you’re willing to reinstall the whole tablet (please make a disk image first), you can try resizing the Windows partition like I did.

[Jeff]

*Forget it, never works consistently*

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[Jeff]

I don’t think it will solve most (if any) of your other problems, but here’s how to resize Android partition: https://techtablets.com/forum/topic/where-to-find-tbook-16-power-firmware-m5f8/page/2/#post-72088

[Author]

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