Discussion:
Specific Android x86 build for my RCA Cambio W101SA23T1?
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Jordan Anderson
2018-01-12 09:42:00 UTC
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I have an RCA Cambio W101SA23T1 and it uses UEFI.
Intel Atom x5 Z8350 at 1.44Ghz
x64 based processor.
According to Device manager:
Kionix KXCJ9 3-axis accelerometer
Intel SST Audio device(WDM) with a Realtek I2S Audio codec
Camera sensor OV2680
Standard bluetooth radio with Realtek Bluetooth UART Bus driver
Realtek RTL8723BS Wireless LAN 802.11n SDIO Network adapter
Intel AVStream camera
Intel HD Graphics
SanDisk DF4032 SSD

Any experts out there that would like to put together an image of Android
that's fully compatible with the RCA Cambio? I tried every flavor of
Android and none of them worked. I used Rufus to flash images to my flash
drive, but some of them refuse to boot or get stuck at the android logo.
6.0 r2 and 7.1 work, but 4.4 and beyond won't work in fact I don't even
know anything about code or editing mapfiles to get specific drivers to
work with my tablet. I don't know what lsusb is, so I'm just gonna let
someone else build an image for it. Let me know if anyone has info
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Jordan Anderson
2018-01-13 03:34:21 UTC
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This post seems to be ignored. If a driver implementation involves mapfiles
or editing the source code, please give easy to understand instructions..
While I am experienced with Android, I am not experienced in the Linux
source file editing side, but I can follow instructions well.
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Povilas Staniulis
2018-01-15 14:57:27 UTC
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As you are probably aware, Android x86 is an FOSS project, not a
commercial product, so do not expect commercial-grade support here.
People will respond if they have time to do so and if they have anything
to share with you.

Also, this project does not do device-specific builds. If you device
requires device specific modifications, you will probably have to do
them yourself.
All the source code is available, you are welcome to experiment and
submit patches.
Post by Jordan Anderson
This post seems to be ignored. If a driver implementation involves
mapfiles or editing the source code, please give easy to understand
instructions..  While I am experienced with Android, I am not
experienced in the Linux source file editing side, but I can follow
instructions well.
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Povilas Staniulis
2018-01-15 14:58:39 UTC
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Didn't notice that was an old post. Sorry. Do ignore this reply.
Post by Povilas Staniulis
As you are probably aware, Android x86 is an FOSS project, not a
commercial product, so do not expect commercial-grade support here.
People will respond if they have time to do so and if they have
anything to share with you.
Also, this project does not do device-specific builds. If you device
requires device specific modifications, you will probably have to do
them yourself.
All the source code is available, you are welcome to experiment and
submit patches.
Post by Jordan Anderson
This post seems to be ignored. If a driver implementation involves
mapfiles or editing the source code, please give easy to understand
instructions..  While I am experienced with Android, I am not
experienced in the Linux source file editing side, but I can follow
instructions well.
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Jordan Anderson
2018-01-15 22:06:13 UTC
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I hear you, Povilas. Can you point me to the download link for the
Source code for the latest 64 bit version of 7.1?
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Povilas Staniulis
2018-01-16 14:05:52 UTC
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There are instructions on the project's website on how to get and build
sources.
http://www.android-x86.org/getsourcecode
Post by Jordan Anderson
I hear you, Povilas. Can you point me to the download link for the
Source code for the latest 64 bit version of 7.1?
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Jordan Anderson
2018-01-17 13:20:11 UTC
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No, I mean where to download the sources and all the files in a single
folder, so I can edit files and insert drivers for devices. The first
topic I see is talking about a build environment which I know nothing
about.
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Post by Povilas Staniulis
There are instructions on the project's website on how to get and build
sources.
http://www.android-x86.org/getsourcecode
Post by Jordan Anderson
I hear you, Povilas. Can you point me to the download link for the
Source code for the latest 64 bit version of 7.1?
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Jordan Anderson
2018-01-17 13:22:05 UTC
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You need ubuntu or other linux which I can't run on my tablet,<div
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Post by Jordan Anderson
No, I mean where to download the sources and all the files in a single
folder, so I can edit files and insert drivers for devices. The first
topic I see is talking about a build environment which I know nothing
about.
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Post by Povilas Staniulis
There are instructions on the project's website on how to get and build
sources.
http://www.android-x86.org/getsourcecode
Post by Jordan Anderson
I hear you, Povilas. Can you point me to the download link for the
Source code for the latest 64 bit version of 7.1?
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Mauro Rossi
2018-01-17 15:20:03 UTC
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Here is how to change goodix.c driver to support GDIX1002
Thes user stavrakis in that blog said that adding entries after GDIX1001
ones should work.

http://chuwi-hi13-install-ubuntu.blogspot.it/2017/06/how-to-install-android-on-chuwi-hi13.html

Those changes are not even present in current master linux git

.../kernel$ cgrep GDIX100
./drivers/input/touchscreen/goodix.c:949: { "GDIX1001:00", 0 },
./drivers/input/touchscreen/goodix.c:956: { "GDIX1001", 0 },

In order to build nougat-x86 linux distro with at least 8 Gbytes of RAM is
required.
M.


Il giorno mercoledì 17 gennaio 2018 14:22:15 UTC+1, Jordan Anderson ha
Post by Jordan Anderson
You need ubuntu or other linux which I can't run on my tablet,<div
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Jordan Anderson
2018-01-14 08:48:58 UTC
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I'm not happy that the 20 people viewing this are not helping me. If you do
a google search for "Android-x86 on an RCA Cambio W101SA23T1", it will come
up bone dry.
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Jordan Anderson
2018-01-14 09:04:38 UTC
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Sorry if I sounded a bit harsh on that. I had no idea 4.4 was EOL.
Basically I wanted an Android build that will specifically run on RCA's
line of Cambio tablets like the W101SA23T1, because almost all the device
functions don't work, and if I wanted to add a device like the Goodix
GDIX1002 touch driver for it to work, I had to edit a mapfile or something
along the lines of coding. The problem I'm having is, there's a whole host
of compatibility issues and some versions of Android simply won't boot even
if I had my flash drive on GPT or MBR for UEFI which my tablet has. I
simply didn't think anyone has ever tried Android-x86 on their Cambio. If
there's an easier workaround I would like to hear from you
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Jordan Anderson
2018-01-14 09:08:32 UTC
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Plus I used Rufus and tried Win32DiskImager and Unetbootin as well and the
"stuck on android logo" problem still persists. I have a boot log file,
from when I last tried 7.1, that you could get a further look at. I'll
attach it later. Thanks in advance.
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Jordan Anderson
2018-01-14 09:20:29 UTC
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Advice on how to easily add your own devices to the Android kernel and
compile it is what I am asking. I would try to use Windows to figure it out
or go around the command line. But android-x86_64-6.0-r1.iso is not
functioning enough to do anything when it does boot up on my tablet
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Jordan Anderson
2018-01-15 04:56:52 UTC
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I think I will go with 7.1 RC1 which works flawlessly but probably most of
the specs my Cambio has don't work quite well. Auto-rotate on the KXCJ9
works fine but I wonder how to get the Goodix GDIX1002 touchscreen to work,
but to my experience, it probably needs a little tweaking to get the
devices to function properly.
We probably can work together to build an image and add drivers to the
files in /system/lib/devices (Which I *think* is the right directory). Then
we can compile the android-x86-7.1-w101sa23t1.iso, test it on my tablet,
and release it to the public.
I've already renamed the stock Iso, but it wouldn't let me attach it
because of an upload error.
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Jordan Anderson
2018-01-15 05:05:09 UTC
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I'm not going to bother looking up drivers because apparently from what I
briefly read online, not all the Linuxes support it out of the box...
I wanted to test out Ubuntu 64-bit, but Unetbootin took forever to put it
on my flash drive so I gave up :(
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Jordan Anderson
2018-01-15 14:32:33 UTC
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I also have a question...Has Mauro or anyone else had any luck getting this
model tablet compatible with Android in the past? Need to know how many
people with the exact same tablet have the same issues as I did.
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Jon West
2018-01-19 02:21:41 UTC
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I have had minimal success getting the cambrio to boot. it needs the grub
flag i915.modeset=0 to even get to the bootanimation. so far my only tests
have been with Oreo 8.1 versions though. I will besure to update here if I
get anywhere.
Post by Jordan Anderson
I also have a question...Has Mauro or anyone else had any luck getting
this model tablet compatible with Android in the past? Need to know how
many people with the exact same tablet have the same issues as I did.
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Jordan Anderson
2018-01-19 09:57:46 UTC
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That sucks, at least you got it to work. It happened to me as well but
for 7.1, I didn't need to add the grub flag. It boots without a
problem.
I recommend 7.1 x64 but the only things not working are the
touchscreen, sound, and bluetooth. Other than that it works
flawlessly. I run it off a flash drive as a Live CD, as I choose to
keep Windows on it, and I clearly have no experience in dual
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Post by Jon West
I have had minimal success getting the cambrio to boot. it needs the grub
flag i915.modeset=0 to even get to the bootanimation. so far my only tests
have been with Oreo 8.1 versions though. I will besure to update here if I
get anywhere.
Post by Jordan Anderson
I also have a question...Has Mauro or anyone else had any luck getting
this model tablet compatible with Android in the past? Need to know how
many people with the exact same tablet have the same issues as I did.
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Jordan Anderson
2018-01-19 10:05:22 UTC
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Any help on adding a partition of Android-x86 besides windows on the same drive?
According to diskmgmt.msc my Windows drive has 3 partitions:
100MB Healthy(Efi system partition)
Windows C: 28.22GB NTFS Healthy (Boot, Page file, crash dump, Primary
partition.)
800MB Healthy (Recovery Partition)
I also have a 4GB microSD card (in the slot) that won't show up in the bios.
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Post by Jordan Anderson
That sucks, at least you got it to work. It happened to me as well but
for 7.1, I didn't need to add the grub flag. It boots without a
problem.
I recommend 7.1 x64 but the only things not working are the
touchscreen, sound, and bluetooth. Other than that it works
flawlessly. I run it off a flash drive as a Live CD, as I choose to
keep Windows on it, and I clearly have no experience in dual
booting.<div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br />
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Post by Jon West
I have had minimal success getting the cambrio to boot. it needs the grub
flag i915.modeset=0 to even get to the bootanimation. so far my only tests
have been with Oreo 8.1 versions though. I will besure to update here if I
get anywhere.
Post by Jordan Anderson
I also have a question...Has Mauro or anyone else had any luck getting
this model tablet compatible with Android in the past? Need to know how
many people with the exact same tablet have the same issues as I did.
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Jordan Anderson
2018-02-12 04:31:43 UTC
Permalink
So I was able to dual boot android and Windows. First job was to download a
root browser, specifically ES file manager from the play store, to find the
files where the goodix drivers and what-not were located.
Only one I found was goodix.co.bak. Of course ES comes with a text editor.
I used it to replace the 1 in GDIX1001 with a number 2, saved the file,
exited, and restarted. Touchscreen still doesn't work. I went back in to
add RCA W101SA23T1 after the model numbers it mentions. I saved again,
restarted, and it still won't respond to touch.
I will look into the terminal emulator and see what lsusb says.
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Jon West
2018-11-07 02:44:48 UTC
Permalink
I have had mostly success using my Cambrio W101SA23T1 as a Bliss OS test
machine. The next release has just about everything working on it except
for rotation and sound. Considering it's still a development release
though, I think it's going well.
https://forum.xda-developers.com/bliss-roms/bliss-roms-development/bliss-os-pie-beta-preview-t3855917
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Jordan Anderson
2018-11-07 02:56:26 UTC
Permalink
That's awesome! Now we have to wait until they work on drivers and stuff.
Post by Jon West
I have had mostly success using my Cambrio W101SA23T1 as a Bliss OS test
machine. The next release has just about everything working on it except
for rotation and sound. Considering it's still a development release
though, I think it's going well.
https://forum.xda-developers.com/bliss-roms/bliss-roms-development/bliss-os-pie-beta-preview-t3855917
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Jon West
2018-11-07 03:31:37 UTC
Permalink
Silly, that they is me right now.
Post by Jordan Anderson
That's awesome! Now we have to wait until they work on drivers and stuff.
Post by Jon West
I have had mostly success using my Cambrio W101SA23T1 as a Bliss OS test
machine. The next release has just about everything working on it except
for rotation and sound. Considering it's still a development release
though, I think it's going well.
https://forum.xda-developers.com/bliss-roms/bliss-roms-development/bliss-os-pie-beta-preview-t3855917
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Kirn Gill
2018-11-12 12:31:42 UTC
Permalink
I've got one of these tablets and I've got to tell you, I've never managed
to get GUI (SurfaceFlinger?) to actually fully initialize. The initial text
mode boot screen finds the boot drive, and then the whole screen flickers
to black.

This machine's an US$80 Walmart special (that's to say, it is basically
junk), I don't expect any developer to ever specifically target it.

Editing source code isn't something newbies can just do, it's not like
tweaking settings. It involves creating the raw software commands to (in
this case) send other commands to hardware. The specific "other commands"
(hardware commands) may not be publicly documented, they may only be
documented in Chinese, they may only be available if you pay more than the
price of the tablet to the hardware manufacturer, etc. and you have to be
exact in your handling of the hardware. The best case if you are not is a
system crash. The worst case is you physically damage the hardware (using
just software!) and ruin it. There's a reason people that write software
drivers for a living rarely make less than US$100,000 per year.

However! Do not give up hope! None of the hardware in this tablet is
custom-made for this tablet; it's basically a collection of "common"
components thrown together, and those components are all also found in
various other computer models. As developers fix driver support for other
machines using the same components, they will also simultaneously make
small improvements to the software support for this machine.

While they're not particularly expensive, I also don't have $80 to spare on
buying the Android-x86 developers their own unit, which would really be the
best way to achieve support.
Post by Jordan Anderson
I have an RCA Cambio W101SA23T1 and it uses UEFI.
Intel Atom x5 Z8350 at 1.44Ghz
x64 based processor.
Kionix KXCJ9 3-axis accelerometer
Intel SST Audio device(WDM) with a Realtek I2S Audio codec
Camera sensor OV2680
Standard bluetooth radio with Realtek Bluetooth UART Bus driver
Realtek RTL8723BS Wireless LAN 802.11n SDIO Network adapter
Intel AVStream camera
Intel HD Graphics
SanDisk DF4032 SSD
Any experts out there that would like to put together an image of Android
that's fully compatible with the RCA Cambio? I tried every flavor of
Android and none of them worked. I used Rufus to flash images to my flash
drive, but some of them refuse to boot or get stuck at the android logo.
6.0 r2 and 7.1 work, but 4.4 and beyond won't work in fact I don't even
know anything about code or editing mapfiles to get specific drivers to
work with my tablet. I don't know what lsusb is, so I'm just gonna let
someone else build an image for it. Let me know if anyone has info
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