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Please refer to Connecting via ADB for detailed instructions on HOW TO connect the board via ADB.
Procedure
Connect to the board via ADB protocol (ref to Connecting via ADB for details) or via Serial cable
Enter in the folder /data/seco/dts_source:
cd /data/seco/dts_source
Inside “seco/” folder you will find the dts sources files you can modify and compile for changing default dtb or dtbo
Here is an example from c43 board:
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