Sunday, February 14, 2016

Touchscreen rotated at 90 degrees (RK3188T tablet)

Hello! I have an Evolio X8 Fusion Tablet (Romanian branded RK3188-T tablet). It has Android 4.2.2 installed and I rooted it with KingoRoot then tried to install a custom recovery.

So I started with CWM from here: http://ift.tt/1sFDSGK . I installed the image using adb. However, the tablet didn't start in recovery mode (either from adb or power with volume up). Then I tried again, but this time with various TWRP images from freaktab _ com/forum/main-category/freaktab-downloads/11780-twrp-2-7-0-0-for-rockchip-s . Neither these booted up.

I don't know exactly after which recovery flashing it happened, but I noticed that the touchscreen is rotated at 90 degrees from the display. See this video: youtube _ com/watch?v=BowOOq_r9ks

Now I have the following problems:
  1. Rotated touchscreen - the most important
  2. Tablet does not boot into recovery (adb reboot recovery) - black screen
  3. Tablet does not boot into bootloader (adb reboot bootloader) - black screen
  4. Tablet does not boot into download mode (plugging USB while keeping volume up pressed) - black screen, unrecognized USB device in Windows, although drivers installed. I can't use RKBatchTool.

I tried editing build.prop and it changes display orientation, but touchscreen rotation in regard to display remains constant.

What can I do next? There is no official Android image on retailer site. And even if there would be, I cannot install since the tablet is not recognized in Download mode.

If it helps, screen resolution is 1024x768.


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