rkflashtool -n does not recognize memory [RESOLVED]

[toby]

If there are threads on this topic, please let me know and I'll close this one.

I am trying to verify that the storage modules are at least recognized by the Rock62 board ( v2.0, 2017-0713).

I'm following the steps outlined here:
* http://files.pine64.org/doc/rock64/guide...o_eMMC.pdf
* https://github.com/fire219/sadie/blob/ma...x/sadie.sh

When I run the command `rkflashtool n`, it seems the board does not recognize the memory.  I've tried four different memory modules

• 32 GB eMMC sold by pine64 ( two different individual modules )
  
• 16 GB eMMC previously successfully running linux in a odroid C2
  
• 1GB microSD ( could not verify still good )
  

In each case, the output is as follows.

Code:

sudo rkflashtool n
rkflashtool: info: rkflashtool v5.2
rkflashtool: info: Detected RK3328...
rkflashtool: info: interface claimed
rkflashtool: info: MASK ROM MODE
libusb: warning [darwin_transfer_status] transfer error: device not responding (value = 0xe00002ed)
libusb: warning [darwin_transfer_status] transfer error: device not responding (value = 0xe00002ed)
libusb: error [submit_bulk_transfer] bulk transfer failed (dir = Out): pipe is stalled (code = 0xe000404f)
libusb: error [submit_bulk_transfer] bulk transfer failed (dir = In): pipe is stalled (code = 0xe000404f)
libusb: error [submit_bulk_transfer] bulk transfer failed (dir = In): pipe is stalled (code = 0xe000404f)
rkflashtool: info: Flash ID: 00 00 00 00 00
libusb: error [submit_bulk_transfer] bulk transfer failed (dir = Out): pipe is stalled (code = 0xe000404f)
libusb: error [submit_bulk_transfer] bulk transfer failed (dir = In): pipe is stalled (code = 0xe000404f)
libusb: error [submit_bulk_transfer] bulk transfer failed (dir = In): pipe is stalled (code = 0xe000404f)
rkflashtool: info: Flash Info:
    Manufacturer: Samsung (0)
    Flash Size: 0MB
    Block Size: 0KB
    Page Size: 0KB
    ECC Bits: 0
    Access Time: 0
    Flash CS:

I would like to think this is an issue with MacOSx.  I do not have any of the accessories ( serial console adapter, USB->eMMC Adaptor ), but I would expect at least one of the chips to be recognized....

Code:

ProductName:    Mac OS X
ProductVersion:    10.12.6
BuildVersion:    16G1033

Procedure that I've been following:

1. Set memory module
   
2. Try to set the jumper ( different combinations )
   
3. Insert power cable
   
4. Remove jumper
   
5. Insert USB cable
   
6. Hold Reset button
   
7. Hold Recovery button
   
8. Release Reset button
   
9. Release Recovery button after 2-5 seconds ( I've experimented )
   
10. Run `rkflashtoon n` in console
    

Solid Red,Blueish,....Green lights.  No smoke.

Yeah, so, if you've gone down this path and found a solution, please let me know.