[Moto G General] Camazza:
I've been trying every possible combination of programmer/qboot possible with no results. We must wait for a newer qboot/programmer. I know this is sad news, but even I got tired of repetedly trying to do something impossible.

Our only hope, but a very remote one, is for someone much smarter than I am to start listening on the Qualcomm COM port and trying to interpret what's going on, especially what's failing and why. But I guess it's too hard of a job for something we *should* be able to fix in a couple weeks' time.

EDIT:

Here's what the debug of qboot reports

I - opening device: \\.\COM5

D - \\.\COM5 opened

I - OKAY [ 0.000s]

I - greeting device for command mode

D - Receiving HELLO packet

D - TARGET PROTOCOL INFO:

D - name: sahara

D - version: 2

D - compatible version: 1

D - maximum packet length: 1024

D - mode: Image transfer pending

D - Switching to "Command" mode

D - Sending HELLO_RESP packet

D - Receiving COMMAND_READY packet

I - OKAY [ 0.016s]

I - identifying device

D - Reading device serial number

D - Sending CMD_EXEC packet, cmd=1

D - Receiving CMD_EXEC_RESP packet

D - Reading device id

D - Sending CMD_EXEC packet, cmd=2

D - Receiving CMD_EXEC_RESP packet

D - Reading SBL SV

D - Sending CMD_EXEC packet, cmd=7

D - Receiving CMD_EXEC_RESP packet

I - ...serial = 0x2F4C742

I - ...chip-id = 0x800 (MSM8226)

I - ...chip-rev = 0x0

I - ...sv-sbl = 0x0

I - OKAY [ 0.016s]

I - finding files

I - ...programmer = programmer.mbn

I - ...singleimage = singleimage.bin

I - OKAY [ -0.000s]

I - validating files

I - OKAY [ -0.000s]

I - switching to download mode

D - Sending CMD_SWITCH_MODE packet

I - OKAY [ -0.000s]

I - greeting device for image downloading

D - Receiving HELLO packet

D - TARGET PROTOCOL INFO:

D - name: sahara

D - version: 2

D - compatible version: 1

D - maximum packet length: 1024

D - mode: Image transfer pending

D - Sending HELLO_RESP packet

I - OKAY [ 0.016s]

I - sending programmer

D - Loading file: programmer.mbn

D - Receiving READ_DATA packet

D - Sending 80 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 4096 bytes

D - Receiving READ_DATA packet

D - Sending 516 bytes

D - Receiving END_IMAGE_TX packet

D - Sending DONE packet

D - Receiving DONE_RESP packet

I - OKAY [ 0.031s]

I - flashing singleimage

D - Loading file: singleimage.bin

D - Pinging RDL...

D - No data from serial, retrying...

D - No data from serial, retrying...

D - No data read from serial after 2 tries

D - No data from serial, retrying...

D - No data from serial, retrying...

D - No data read from serial after 2 tries

D - \\.\COM5 closed

FAILED (blank-flash:sdl-transfer-image:sdl-hello:invalid HDLC frame)