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Sabresd board : No HDMI output  in Android JB 4.2.2 recovery mode

Question asked by nick yeh on Jul 14, 2013
Latest reply on Oct 28, 2013 by nick yeh
Branched to a new discussion



I am trying to do android recovery mode in Sabresd board. In my environment, I use HDMI as output display, no LVDS.

Below is my U-boot bootargs:

console=ttymxc0,115200 init=/init video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 vmalloc=400M androidboot.console=ttymxc0 no_console_suspend androidboot.hardware=freescale


To enter recovery mode, I do folllowing steps:

1. copy sabresd_6dq-ota-.... .zip to /cache

2. create a file "command" in /cache/recovery, the contents of this file represent the filename of update package, it should look like below:


3. in CLI, execute "reboot recovery"

4. system reboot and get into recovery mode


In previous android release (imx-android-13.4.1), I can see rolling star in Android icon on HDMI display which represents the update process is running.

But In JB 4.2.2 ga release, No HDMI display, but I can confirms the recovery is running.

I had try to add "--show_text" in command file and it can display static pic, but cannot see like previous "rollong star" in Android icon.

Anyone can figure out what I miss?

Thanks in advanced.