I bought new tablet Hyundai A7.
Accelerometer does not working. Do someone recognize where accelerometer is on board?
ps: usb connector is already damaged It is a reason why I disassemble it.
The accelerometer is a very tiny IC. about 5x5mm. Hence identifying it from the images you have provided is very difficult as the print on smaller ICs is not readable.
What you can try is find out the name of the sensor h/w from the sources or run some sensor test apps and see if the sensor-HAL reports the name.
Then it will be a "simple" matter of looking up that IC on the motherboard.
BTW, whats your interest in finding the accel-IC?...
If I found it, Ill try change it .
I hope..
Related
Hello,
I'm planning to do some dev stuffs in mobile's accessories hardware.
My idea is :
- I need an Android software install on my phone (actually I'm using HD2 running Android 2.2). For example : My software is simply a textbox with one button. When I click on the button, the software get the textbox content, encode it in to binary signal and send it toward the USB port of my phone
- I will make a circuit board to handle that binary signal, with a micro processor chip, I can convert that signal and show it on a LCD the content which I have just sent from my phone
I have some experience in Android software programming, but I'm stuck in sending signal through USB port in Android? So may someone here can help me with an example? or an suggestion of the library which I can use to open USB port?
Thanks in advance for your help
Did you get this to work? I am planning to use that same approach for controlling a PIC circuit that is connected via USB to the phone.
Unfortunately, I did not work it out =((
same problem
i have the same problem, i have to send a file by usb port. Im using ttyACM0 but its not working =/
So I need some clarification on a few things. I am a dummy and didn't check to see what g-sensor I had before I re-imaged my tablet to android 4.1.1. The screen doesn't rotate when I flip the tablet around, so I'm assuming this is a g-sensor problem. Is there any harm in pushing different g-sensor drivers and basically guessing which one I have until it works (kinda of like pushing touchscreen drivers until the touchscreen works)?
If anyone knows the g-sensor drivers used by the A13 tablets, or more specifically the A13 trio stealth pro 7c (so I can do less guess work) that would be awesome.
have you tried looking here
A13 Forum http://www.techknow.me/forum/index.php?topic=5765.0
This all relates to my experimental Android-x86 (x86_64) builds (http://forum.xda-developers.com/win...-jun-2015-android-x86-lollipop-5-1-1-t3125035). Any and all help is appreciated!
One interesting note is that if I use the debug boot item, I cannot boot as the type cover keeps disconnect and reconnecting in the console, or at least, some of the devices inside of it do.
Sensors output (from Linux, using an iio service for systemd - github.com/hadess/iio-sensor-proxy ):
http://pastebin.com/raw.php?i=Jf2MX3Kt
Could someone please tell me how to get those sensors working under Android? I believe the magnetometer is used to detect if the type cover/keyboard is attached or not, which may relate to the crash when it is removed or reconnected to the device
The NTRIG devices are related to the bluetooth pen, which I believe we should be able to also get working, since I think some examples of pressure sensitive pens are out there
dmesg (android):
http://pastebin.com/raw.php?i=e0gmP91R
note the i2c issues and others - there's an LKML topic about the i2c errors, and it implies they aren't truly fatal
audio devices are detected, but I get no sound output on my builds...older kernels had working audio
DRM is loaded but opengl is null under the tablet information tab
Logcat, with the keyboard disconnect/reconnect crash:
http://pastebin.com/raw.php?i=fzgSabgV
Halp! I have no idea what I'm doing yet, especially with Android and it's codebase, as I'm more of a vanilla Linux person at the moment. I really want to learn and help and get this thing working!
Thanks everyone!
Just so you all know, rbg's 32 bit build of Kitkat is rock solid and only lacks support of sensors and volume rockers: https://groups.google.com/d/msg/android-x86/q-B7lrRzeiM/5IJ-J_J13s0J
I tried rbg build(android_x86-5.1.1_r13-20150831.img) from a live usb(SP3 i5 4gb ram), made the usb with rufus; Rotations wasnt working. Rotations+pen input broke touch input alltogether. And i could not see if the tablet was going to deep sleep or if it scaled cpu frequencies. Any ideas or sugestions for someone that even though loves windows for desktops is really looking for android on a tablet? Would i get better results if i install? How would i install to get completely rif of windows 10?
Edit: Found the 7 September build with bluez integration.
https://groups.google.com/forum/#!p...aZ7E2pFh/android-x86/F4IVDDuul2w/8Tt1Mz67FgAJ
Ill see if it works better.
Its general here so i think i can ask this kind of things so ,I m an IT guy that has run out of ideas. I would like to ask you some questions about a (probably hardware realted) problem that i have. All started suddenly , from one day to another all usb ports, camera and bluetooth stoped working. I dont really care about the bluetooth and the camera, the only thing i care about are the usb ports. I 've checked them with a multimeter (only the pins that provide power) and the strange thing is that they do provide power. If i connect something like a usb flash drive , the led flashes (stays on , doesnt flickers) but nothing happens. I am sure that's not a drivers problem because the laptop doesnt even recognize them in UEFI nor CSM. My UEFI does not have an option to completely disable usb ports, only to change from usb 2 to 3 (no change at all). I m sure it's now a power problem, i ve reseted the bios even by the motherboard jumper.So the question is , what it may be? is it a motherboard malfuction ? Can it be fixed? Also , is there any possibility that for example the camera is faulty , or the camera cable , and shortcutting something? (i mean if i disconnect the camera and the bluetooth, is there any possibility that it will be fixed? ) thanks in advance.
p.s. also on the motherboard there isnt anything strange like a blown up resistor or something.
laptop - toshiba satellite c50-b-14h
intel celeron n2830
2gb ram
thanks in advance
Hello everyone, I have been reading and respecting you for a long time.
They gave me a Mediacom tablet with Android to repair or throw away as a favor, I'm not asking for money and I'm not a professional, just self-taught. It basically had half the screen where the touch screen didn't work, so in addition to trying with the "pizoelectric" lighter as seen on youtube and various apps, I decided to try replacing the touch screen as well. Once done, the problem remained as it was. I tried to do the factory reset and now I'm stuck in the installation because I can't click on the buttons to finish the installation. I used to at least rotate the screen and run it on the good half. But now I'm stuck in the installation. I also tried to take a usb dongle to attach a mouse to it, but it doesn't see it, also tried on the smartphone, but it doesn't see it anyway. 1. Confirmed that it is not damage to the touch screen. Can I finish installation via adb shell? What do you think is the problem? is it software? Any advice is greatly appreciated.
Thank you
It's hard to advise anything without writing the model name of the device. Adb host will not work when it is not enabled in the device.
ze7zez said:
It's hard to advise anything without writing the model name of the device. Adb host will not work when it is not enabled in the device.
Click to expand...
Click to collapse
The model is smarpad iyo 10, but I doubt it serves as information, since it is probably an Android 9 problem. I thought it was possible at boot to enable a shell and complete the installation or maybe rotate the screen.
Thank you for answering.
The Rockchip A55 RK3566 processor in the Mediacom IYO 10, supports USB OTG, so a mouse connected to an OTG adapter should work.
Which adapter did you use?
The touch screen for the Mediacom IYO 10 is not outstandingly complicated and has no chipset in it. So the touch is controlled by the mother or daughter board electronics, which you probably did not replace when you replaced the screen.
ze7zez said:
The Rockchip A55 RK3566 processor in the Mediacom IYO 10, supports USB OTG, so a mouse connected to an OTG adapter should work.
Which adapter did you use?
The touch screen for the Mediacom IYO 10 is not outstandingly complicated and has no chipset in it. So the touch is controlled by the mother or daughter board electronics, which you probably did not replace when you replaced the screen.
Click to expand...
Click to collapse
The Otg adapter is from Tek-one to-g-15, it may be that it doesn't work, in fact it doesn't work on the mobile either, I try to change it.
As you said, the touch had no chip, just a connector to the motherboard.
An information that I have omitted may be useful, at the beginning the tablet also had another problem, in some circumstances that I have not explored, the screen or the resolution was resized in half, presumably in the working half. Almost immediately the scaling issue was fixed by randomly activating a gui option in hidden developer mode.
Now, excluding the Otg that I'm going to change, do I have any possibility of continuing the installation via shell?
Thanks for the precious information.
You probably don't have TWRP so you won't do anything with the build.prop file.
The lack of a shell is the result of not enabling debugging in the developer options, available only after starting android.
Look for a working OTG adapter.
Maybe this thread will help you.
Is there any emulator for Amazon fire stick?
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