RT-AC86U mysterious contacts on PCB

[vaboro]

Does anyone know what these contacts on RT-AC86U's PCB are? Aren't they JTAG connectors for Macronix NAND? If so, does anyone know the pinout?

 

[hpo14]

maybe you can mail to "Chris Bellows"

NANDcromancy: Live Swapping NAND Flash — Atredis Partners

Often when assessing an embedded system, changes can occur (intended or otherwise) that cause the target system to enter a state where it no longer works ('bricked'). In some cases fixing it requires flashing the target using a debug interface or manually flashing an external storage device. This po

www.atredis.com

He seems find out the pinout.
"After enumerating the JTAG pinout on the unpopulated header with a JTagulator, it was possible to confirm access using OpenOCD:"

 

[vaboro]

maybe you can mail to "Chris Bellows"

NANDcromancy: Live Swapping NAND Flash — Atredis Partners

Often when assessing an embedded system, changes can occur (intended or otherwise) that cause the target system to enter a state where it no longer works ('bricked'). In some cases fixing it requires flashing the target using a debug interface or manually flashing an external storage device. This po

www.atredis.com

He seems find out the pinout.
"After enumerating the JTAG pinout on the unpopulated header with a JTagulator, it was possible to confirm access using OpenOCD:"

Thanks for the reference!