Adroid Desktop blinking


#1

Hi,
I downloaded the last version of the Android SD card installation image and flashed the Android into my Dragon Board.
After a reset the Android boots, HDMI does not show the home screen. The screen is blinking until suspend.
On the console i see many errors like:

[ 74.820203] pil-q6v5-mss 4080000.qcom,mss: modem: Failed to locate modem.mdt
[ 74.826257] M-Notify: General: 5
[ 74.829431] IPC_RTR: pil_vote_load_worker: Failed to load modem
[ 74.838449] pil-q6v5-mss 4080000.qcom,mss: modem: Failed to locate modem.mdt
[ 74.844500] M-Notify: General: 5
[ 74.847677] IPC_RTR: pil_vote_load_worker: Failed to load modem
[ 74.857515] pil-q6v5-mss 4080000.qcom,mss: modem: Failed to locate modem.mdt
[ 74.863701] M-Notify: General: 5

I found out that the reason is the plugged in SD card. Even if the boot is from eMMC!!!
The SD card i used is the latest Android recovery image.
Thanks


#2

Hi Leonid,

I would like to reproduce your situation.

Would you mind teaching me which build you have downloaded?
There are several Android images.

One is from here


which points to
https://builds.96boards.org/releases/dragonboard410c/qualcomm/android/latest/

And another one is
"Android Board Support Package vLA.BR.1.2.4-01810-8x16.0-3"
hosted on here
https://developer.qualcomm.com/hardware/dragonboard-410c/tools

Please let me know if your Android SD card installation image is either of above.


#3

Hello,
I have used the precompiled image from the first link:


Thank you.


#4

Hi @Leonid

I was able to reproduce your issue. I have reported the issue to the appropriate team for them to look at. Their current “workaround” is to remove the SDCard while booting.

I am not sure why you would want to leave the loader SDCard in the slot, it does not have a usable file system, for ‘normal’ operation of Android you would need a SDCard that has been formatted with a regular partition table and file systems. I believe that the workaround is quite reasonable, however you might have a good reason for leaving the loader card in the slot.

Full Disclosure: I am an employee of Qualcomm Canada, any opinions I may have expressed in this or any other post may not reflelect the opinions of my employer.