Originally Posted by GloriousDJ

I flashed Lightspeed_4_beta3 after that came out and I finally made the time to try and update to the newest version 4.3 today, but I can't get into recovery, I have Acer Recovery app and I re-installed CWM but it still wont load recovery... any ideas why? and how to fix it?

Had you ever flashed the stock ics leak? It sounds like you may have the ics bootloader. Does it say "0.03.11-ICS" in the upper left corner when you boot up? If so, that may be whey thor recovery wasn't booting. (just checking)

Originally Posted by eppeP

Unless I have misinterpreted something, this should not be that much of a problem. Maybe a bit inconvenient if you don't know USB programming though.

If you can get the device into APX mode it will answer the first read request with the UID.
So if you open the device (955:7820) and initiate a bulk transfer on endpoint 0x81 and you should get 8 bytes that is the UID.

Something like:

#include <libusb-1.0/libusb.h>
#include <stdio.h>
#include <stdint.h>

int main(void)
{
    unsigned char data[64];
    int received_length;
    int r = 1;
    libusb_context* ctx = NULL;
    libusb_device_handle* dev_handle = NULL;

    libusb_init(&ctx);
    dev_handle = libusb_open_device_with_vid_pid(ctx, 0x0955, 0x7820);
    if(dev_handle)
    {
        r = libusb_bulk_transfer(dev_handle, 0x81, data, sizeof(data), &received_length, 10000);
        if (r == 0)
        {
            if(received_length == 8)
            {
                printf("uid: %#016lx\n", *(uint64_t*)data);
            }
            else
            {
                r = 1;
                printf("Error: We got %d bytes of data insetad of the 8 bytes we expected...\n", received_length);
            }
        }
        else
        {
            printf("Error: USB read failed!\n");
        }
        libusb_release_interface(dev_handle, 0);
    }
    else
    {
        printf("Error: Failed to open device!\n");
    }
    libusb_exit(ctx);
    return r;
}

First thanks
having a hard time compiling in ubuntu
output is:

lr@lr:~/a500$ gcc -Wall -W -Werror apx.c -o apx
/tmp/ccNiYNxr.o: In function `main':
apx.c.text+0x36): undefined reference to `libusb_init'
apx.c.text+0x4c): undefined reference to `libusb_open_device_with_vid_pid'
apx.c.text+0x82): undefined reference to `libusb_bulk_transfer'
apx.c.text+0xec): undefined reference to `libusb_release_interface'
apx.c.text+0x104): undefined reference to `libusb_exit'
collect2: ld returned 1 exit status

any ideas for me?

Originally Posted by liftman-

First thanks
having a hard time compiling in ubuntu
output is:

lr@lr:~/a500$ gcc -Wall -W -Werror apx.c -o apx
/tmp/ccNiYNxr.o: In function `main':
apx.c.text+0x36): undefined reference to `libusb_init'
apx.c.text+0x4c): undefined reference to `libusb_open_device_with_vid_pid'
apx.c.text+0x82): undefined reference to `libusb_bulk_transfer'
apx.c.text+0xec): undefined reference to `libusb_release_interface'
apx.c.text+0x104): undefined reference to `libusb_exit'
collect2: ld returned 1 exit status

any ideas for me?

Try linking against libusb-1.0:

gcc apx.c -o apx -lusb-1.0

Originally Posted by lcd047

Try linking against libusb-1.0:

gcc apx.c -o apx -lusb-1.0

That should work, -Wall -pedantic -lusb-1.0 is what I used when I tested it.

thanks for the help!
got it

Originally Posted by eppeP

Unless I have misinterpreted something, this should not be that much of a problem. Maybe a bit inconvenient if you don't know USB programming though.

If you can get the device into APX mode it will answer the first read request with the UID.
So if you open the device (955:7820) and initiate a bulk transfer on endpoint 0x81 and you should get 8 bytes that is the UID.

Something like:

#include <libusb-1.0/libusb.h>
#include <stdio.h>
#include <stdint.h>

int main(void)
{
    unsigned char data[64];
    int received_length;
    int r = 1;
    libusb_context* ctx = NULL;
    libusb_device_handle* dev_handle = NULL;

    libusb_init(&ctx);
    dev_handle = libusb_open_device_with_vid_pid(ctx, 0x0955, 0x7820);
    if(dev_handle)
    {
        r = libusb_bulk_transfer(dev_handle, 0x81, data, sizeof(data), &received_length, 10000);
        if (r == 0)
        {
            if(received_length == 8)
            {
                printf("uid: %#016lx\n", *(uint64_t*)data);
            }
            else
            {
                r = 1;
                printf("Error: We got %d bytes of data insetad of the 8 bytes we expected...\n", received_length);
            }
        }
        else
        {
            printf("Error: USB read failed!\n");
        }
        libusb_release_interface(dev_handle, 0);
    }
    else
    {
        printf("Error: Failed to open device!\n");
    }
    libusb_exit(ctx);
    return r;
}

Hi, eppeP,
I downloaded the drivers for lib Usb and installed, I am missing something definately as I dont know how to read the CPUID after installing the drivers
Please help....

I just did this in ubuntu with no problem. with tablet in APX mode, start an elevated command prompt (Run as admin) then run the EXE file.
it will spit back an error or the UID.
Very simple.

Originally Posted by jecee

Hi, eppeP,
I downloaded the drivers for lib Usb and installed, I am missing something definately as I dont know how to read the CPUID after installing the drivers
Please help....

Since you write drivers I assume you are using windows.
In that case you want the libusb 0.1 version, the quoted code is for libusb 1.0 which is not available for windows.
Code and a visual studio project can be found here. This thread may be of use as well.

If using Linux (or any other platform for which libusb 1.0 exist) you should be able to build the quoted code as described earlier in this thread.

Thanks so Much!!!

---

Thanks so Much!!!
THIS WORKED GREAT!!!!!!!

Hi,
Question why (955:7820) ?? Should we modify it according to our device?