Colorfly e708q1

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Colorfly e708q1
IMG 1009.PNG
Manufacturer www.colorfly.eu
Dimensions 190 (H) x 113 (W) x 7.6 (D) mm
Release Date September 2013
Website Official E708 Q1 Datasheet (Link is dead)
Specifications
SoC A31s Allwinner A31s-up to 1 GHz Quad-Core Cortex-A7
DRAM ELPIA J4216BBBG-GN-F (2x512mb ) DDR3 SDRAM 1GB
NAND Intel I29F64G08AAMEI 8GB
Power DC 5V⎓2A
3.7V 2300Mha Li-Po battery
Features
LCD 1200x800 (7" 16:9 edge-lit)
Touchscreen Googix GT911 5-finger capacitive or Ilitek ILI2139 10-finger capacitive
Video HDMI ver B
Audio 3.5mm headphone plug, internal speaker, internal microphone
Network WiFi 802.11 b/g/n (RTL8188EU@usb:0bda:8179)
no bluetooth
Storage µSD
USB 1x USB2.0 OTG
Camera 0.3MP front camera (GC0308)
none on rear side
Other Accelerometer STK8313
Headers none

This page needs to be properly filled according to the New Device Howto and the New Device Page guide.

Identification

On the back of the device, the following is printed:

(Colorfly)
7" TABLET PC

E708 Q1
5.0V ⎓ 2.0 A Wi-Fi
Colorfly GmbH

Tips, Tricks, Caveats

Add MANUFACTURER DEVICE specific tips, tricks, Caveats and nice to have changes here.

Boot from SDCard mode

How to prepare and Boot from MicroUSB:

1.Zero the beginning of the SD card: 

  dd if=/dev/zero of=/dev/sdX bs=1M count=8

2.Start fdisk to partition the SD card: 

     2.1-fdisk /dev/sdX
         At the fdisk prompt, delete old partitions and create a new one:
         Type o. This will clear out any partitions on the drive.
         Type p to list partitions. There should be no partitions left.
         Now type n, then p for primary, 1 for the first partition on the drive,
         2048 for the first sector, and then press ENTER to accept the default last sector.
         Write the partition table and exit by typing w.
     2.2-Create and mount the ext4 filesystem:
          mkfs.ext4 /dev/sdX1
          mkdir mnt
          mount /dev/sdX1 mnt
     2.3-Download and extract the root filesystem (for example, arch linux):
         wget http://os.archlinuxarm.org/os/ArchLinuxARM-armv7-latest.tar.gz
         bsdtar -xpf ArchLinuxARM-armv7-latest.tar.gz -C /mnt
         sync
         umount /mnt

3.Install the U-Boot bootloader: 

     Download git form denx.de:
          Edit sun6i-a31s-colorfly-e708-q1.dts to enable axp22x battery poweb:
                  At the end of file add:
                     &axp22x { backup = <3000000 200>;   };                     
         Next how to compile U-Boot:
         1-Configure u.boot for colorfly e708 
         make CROSS_COMPILE=arm-linux-gnueabihf- colorfly_e708_q1_defconfig
         2-If necessary configure sources:
         make CROSS_COMPILE=arm-linux-gnueabihf- menuconfig 
         3-Compile u-Boot
         make CROSS_COMPILE=arm-linux-gnueabihf- 
         4-Install U-BOOT on MicroSD boot sectors:
         dd if=u-boot-sunxi-with-spl.bin of=/dev/sdb bs=1024 seek=8
         5-Copy sun6i-a31s-colorfly-e708-q1.dtb (from ./arch/arm/dts/sun6i-a31s-colorfly-e708-q1.dtb) 
           to /mnt/boot (partition /dev/sdb1)

4.boot.scr -boot.scr 

             1.mount /dev/sdb1  /mnt/
             2.boot.cmd (source):
             part uuid ${devtype} ${devnum}:${bootpart} uuid
             setenv bootargs console=${console} root=PARTUUID=${uuid} rw rootwait
             if load ${devtype} ${devnum}:${bootpart} ${kernel_addr_r} /boot/zImage; then
               if load ${devtype} ${devnum}:${bootpart} ${fdt_addr_r} /boot/dtbs/${fdtfile}; then
                 if load ${devtype} ${devnum}:${bootpart} ${ramdisk_addr_r} /boot/initramfs-linux.img; then
                     bootz ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r};
             else
             bootz ${kernel_addr_r} - ${fdt_addr_r};
                fi;
              fi;
             fi                       
            3.compile boot.cmd:
                   mkimage -C none -A arm -T script -d boot.cmd boot.scr
            4. Copy boot.scr to /mnt/boot
                   cp boot.scr /mnt/boot
            5. Umount /mnt 
               sync
               umount /mnt

5. How to compile linux kernel

Compile zImage with this options :

Download kernel: git clone git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git 

            1.Prepare compile kernel to suni allwinner:
                 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- sunxi_defconfig
            2.Modify kernel propertiers(menu config):
                 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig
                   2.1Kernel options (menu config) you can select this as modules(M):
                       Wifi:
                            1-Networking support -->Wireless -->Cfg80211
                            2-Device drivers -->Network Device Support-->wireles Lan
                            3-Device drivers -->Staging drivers--> RTL8188                             
                             TouchScreen:
                                -Device drivers -->Imput devices---> Goodix 911   
                             OTG, filesystem (NTFS, DOS)..:
                                 1-Device drivers -->USB suport---> Otg, Mass storage, etc..
                                 2-File systems--> NTFS, VFAT...
           3.Compile Kernel:
             ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make zImage 
              (copy to microsd partitrion, in my case sdb1 (vfat) de ./arch/arm/boot/zImage to /mnt/boot/zImage) 
            4.Install Modules:
               mount second microsd partition to /mnt (mount /dev/sdb2 /mnt)
               ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-  INSTALL_MOD_PATH=/mnt  make modules modules_install
               Now we have new modules in /mnt/lib/modules/4.6.0-rc2/...
             5-Sync and umount /mnt:
               sync
               umount /mnt

NOTE: In order to test battery status and charge (at now not soported at mailine kernel)download a modificied mainline kernel from https://github.com/micile/linux-sunxi/tree/AXP_Battery and compile zImage and modules witch sunxi_defconfig options.

Insert the micro SD card into the colorfly e708 and apply 5V power. The default root password is root.

6. In order to calibrate touch screen, X11: 

      6.1. Edit 10-evdev.conf 
        vim /usr/share/X11/xorg.conf.d/10-evdev.conf 
      6.2. Add this lines:
          Section "InputClass"
                 Identifier      "calibration"
                 MatchProduct    "Goodix Capacitive TouchScreen"
                 Option  "Calibration"   "4 1200 800 -1"
                 Option  "SwapAxes"      "1"
          EndSection
Devices on boad

# lsusb
Bus 001 Device 002: ID 0bda:0179 Realtek Semiconductor Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Info about CPU "cat /proc/cpuinfo"
processor       : 0
model name      : ARMv7 Processor rev 3 (v7l)
BogoMIPS        : 48.00
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 3

processor       : 1
model name      : ARMv7 Processor rev 3 (v7l)
BogoMIPS        : 48.00
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 3

processor       : 2
model name      : ARMv7 Processor rev 3 (v7l)
BogoMIPS        : 48.00
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 3

processor       : 3
model name      : ARMv7 Processor rev 3 (v7l)
BogoMIPS        : 48.00
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 3

Hardware        : Allwinner sun6i (A31) Family
Revision        : 0000
Serial          : 16524251080XXXXX

ADB

This device does not have root access enabled by default. If USB debugging is enabled in settings on the tablet, run 

echo -e '0x1f3a\n0x1002' >> .android/adb_usb.ini 
sudo bash -c 'echo SUBSYSTEM==\"usb\", ATTR{idVendor}==\"1f3a\", ATTRS{idProduct}==\"1002\", MODE=\"0666\", \
  GROUP=\"plugdev\", SYMLINK+=\"android%n\" >> /etc/udev/rules.d/51-android.rules'
udevadm control --reload-rules

in order to make 

adb devices
adb shell
..

work.

Recovery mode

  1. Power off the device
  2. Hold down the vol+ button
  3. Power on the device
  4. Release the vol+ button when recovery starts

Device disassembly (voids warranty)

The back cover uses snap-ins, but sits very tight on the front frame. Where the volume and power buttons sit, the plastic is so thin that it's very likely to break, when trying to remove the back cover. To start opening, be sure to pick a spot about one mm below the display at a place where no buttons or connection holes are situated. Remember that you will loose warranty doing this with most vendors.

Adding a serial port

Howto needed: Does the N7 Pro serial port guide to add a serial port work for this device too!?

Pictures

  • IMG 1008.PNG
  • 20160312 234359702 iOS.jpg
  • 20160311 155843735 iOS.jpg
  • E708 stress test.PNG

Also known as

Unofficial
  • Since there are no firmware files publicly available to this date from Intenso, I've tried a couple of firmware images from different vendors listed on chinagadgetsreviews.blogspot.de to repair a non-booting E708 that just showed (Intenso)-Logo on start. Most of the firmwares from other vendors show black screens, have wrong display resolutions or non-working sound and, unfortunately, non-working touchscreen input.
  • Caution: If your QE708 is working fine, do not flash the below, but rather try to extract the stock rom firmware with sunxi-tools above and have someone with a broken one test your image.

.............................................................................. Discussion, firmware, etc

  • [1] has some firmwares. They're stored on Baidu NetDisk. (The webpage and the netdisk are both in Chinese)

See also

Add some nice to have links here. This includes related devices, and external links.

Manufacturer images

Optional. Add non-sunxi images in this section.

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