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android does not boot after adding services to aosp-nanopim4

Moderators: chensy, FATechsupport

Hi ,

My experience with the nano-pi m4 board with Android was a success story after following the guide here http://wiki.friendlyarm.com/wiki/index. ... ource_Code,

I wanted to customize the hal driver driver with android service part failed ,i followed the tutorial here https://blog.csdn.net/yong_xu/article/details/80911535 ,
i have got AOSP compiled successfully ,but the image booting to blank pink screen ,
the red light on dev board is on static ,green led is blinking ,

My second question is that how do enable debug port ,uart4 in android aosp build ,is there any special config
booting issue was with JNI layer ,corrected the code its working .
Debug port it already mentioned here http://wiki.friendlyarm.com/wiki/index. ... ble_Boards ,

UART4 available for users and its device name is "/dev/ttyS4" (Note: it is only available in ROMs generated on June 18,2018 or after)

hope it helps

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