[quote="raimo"]Then try embedding SuperSU instead. That works for sure! 5. Now go into the folder "SuperSU" and change "LOCAL_CERTIFICATE := PRESIGNED" to "LOCAL_CERTIFICATE := PLATFORM" inside "Android.mk" The case of "PLATFORM" is relevan...

What kind of m.2 are you using? There are 3 kinds, sata, ahci and nvme. Only m-key nvme will work as there is no sata interface on the rk3399 or wired to the m.2 connector.

nvme cost more too (yay) but that's the first thing to check.

hope this helps.

M.

Found it! Well part anyway... The DTS/DTB don't have any differences but the visibility of the GPIOs is set in: vendor/friendlyelec/apps/GPIO_LED_Demo/src/com/friendlyarm/GPIODemo/GPIODemoMainActivity.java in the app itself when it does board detection and sets pins. However, doesn't entirely solve ...

Hi, I've developed my own baseboard for the som-rk3399 and prototyped software with the nanopc-t4 while the hardware was being designed/built/debugged. While the schematic for the SOM lists all the same GPIO pins as the t4, none of the GPIO pins in the GPIO demo on the t4 are visible on the SOM, and...