new device – terrible touch sensitivity OR no wifi

[Simon Wenger]

Hi

my new device (Z8350!) came with an unusable touch screen from some Aliexpress vendor, needing up to 20 clicks to hit a simple OK button.

The system had been fiddled with (serial no. 012345…, a user already registered in Windows)

So I started playing around. Installing that touchsettings file in windows helped a lot, but not for Android.

Remix OS was slightly better, but screen rotation does not work.

Phoenix/android x86 has no touch  & no wifi.

Now going back to the original Android 5.1 leaves me with no screen rotation…

I wonder what actually has happened to the device…?

Does it make sense to reset the BIOS? (as updating seems to be a bad idea for the Z8350)

Are there other ways to reset the device?

Is there an Android based OS that actually works on the Hi12?

Thanks for any advice!

 

[Bill Christiansen]

You probably have a later version where they changed the gsensor.

The best Android for Hi12 is CM12.1

http://www.modaco.com/forums/topic/377890-devrom281-cyanogenmod-121-android-511-for-chuwi-vi10-plus-hi10-plus-hi10-pro-hibook-hibook-pro-hi12/

First you will need TWRP recovery. There are different ways to do that but one is replacing recovery.img and boot.img  in the stock ROM folder before flashing.

[Simon Wenger]

Thanks for answering, Bill!

Yes, I guess I have a very recent model. Serial number is higher than any I have read about: Q64G451611XXXXX. Has there been a change since 451609XXXXX? That’s what I can get a CM12.1 for.

I have not read anything about a changed gsensor. Anything I need to know about that? I can find a “g-sensor rom firmware pack” online but there is absolutely no information with it. These COULD be the files to replace but how can i KNOW?

Do certain recoveries/BIOS/ROMs not work with this new sensor?

I had stumbled across the CM12.1 page you linked before, but got stuck at installing TWRP. Where can I find a recovery & boot image suitable for my CPU (Z8350)? Did you find any? Or can I use any as long as it’s Cherry Trail? I can find files for Hi10, but that’s a very different machine, isn’t it?

And I can find the CM12.1 files for Hi10 and the patch to Hi12. They contain a recovery-from-boot.p Pascal script but no image. I can’t flash those zips, can I?

Can you help me a step further? Thanks!
Simon

 

[Bill Christiansen]

The TWRP I’m using I got from this thread:

Tethered TWRP / Clean Root / Android exFAT+NTFS support for Hi12 Dual Boot

but I have an older Hi12 so not sure of it’s compatibility with latest version. If Remix was working except for screen rotation then it’s probably just the change in g-sensor which TWRP doesn’t use so should be ok.

I had a look on the Chuwi forum but it wasn’t really clear what stock firmware to use for Z8350 cpu. Hopefully they will correct that.

[Author]

Posts