[Moto G Original Android Development] oversleeper:
Guys there is no way to modify the singleimage to make it work with the 41.13 bootloader, that file is encrypted and signed by Motorola. But if you wanna try no problem, just a warning.

Anyway, this is the debug mode log:

I - opening device: \\.\COM16
D - \\.\COM16 opened
I - OKAY [ 0.004s]
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 [ 0.026s]
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 = 0x3B93E14
I - ...chip-id = 0x800 (MSM8226)
I - ...chip-rev = 0x0
I - ...sv-sbl = 0x0
I - OKAY [ 0.043s]
I - finding files
I - ...programmer = programmer.mbn
I - ...singleimage = singleimage.bin
I - OKAY [ 0.020s]
I - validating files
I - OKAY [ 0.003s]
I - switching to download mode
D - Sending CMD_SWITCH_MODE packet
I - OKAY [ 0.005s]
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 [ 0.031s]
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 3452 bytes
D - Receiving END_IMAGE_TX packet
D - Sending DONE packet
D - Receiving DONE_RESP packet
I - OKAY [ 0.070s]
I - flashing singleimage
D - Loading file: singleimage.bin
D - Pinging RDL...
D - \\.\COM16 closed
FAILED (blank-flash:sdl-transfer-image:sdl-hello:invalid HDLC frame)

and this is from dump mode (only last part):

I - flashing singleimage
D - Loading file: singleimage.bin
D - Pinging RDL...
D - Dumping 40 bytes written
D - 00000000 7e 01 51 43 4f 4d 20 66 61 73 74 20 64 6f 77 6e |~.QCOM fast down|
D - 00000010 6c 6f 61 64 20 70 72 6f 74 6f 63 6f 6c 20 68 6f |load protocol ho|
D - 00000020 73 74 04 02 01 00 00 7e |st.....~ |
D - Dumping 48 bytes read
D - 00000000 01 00 00 00 30 00 00 00 02 00 00 00 01 00 00 00 |....0...........|
D - 00000010 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
D - 00000020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
D - Dumping 40 bytes written
D - 00000000 7e 01 51 43 4f 4d 20 66 61 73 74 20 64 6f 77 6e |~.QCOM fast down|
D - 00000010 6c 6f 61 64 20 70 72 6f 74 6f 63 6f 6c 20 68 6f |load protocol ho|
D - 00000020 73 74 04 02 01 00 00 7e |st.....~ |
D - Dumping 16 bytes read
D - 00000000 04 00 00 00 10 00 00 00 0d 00 00 00 01 00 00 00 |................|
D - Dumping 40 bytes written
D - 00000000 7e 01 51 43 4f 4d 20 66 61 73 74 20 64 6f 77 6e |~.QCOM fast down|
D - 00000010 6c 6f 61 64 20 70 72 6f 74 6f 63 6f 6c 20 68 6f |load protocol ho|
D - 00000020 73 74 04 02 01 00 00 7e |st.....~ |
D - Dumping 16 bytes read
D - 00000000 04 00 00 00 10 00 00 00 0d 00 00 00 01 00 00 00 |................|
D - Dumping 40 bytes written
D - 00000000 7e 01 51 43 4f 4d 20 66 61 73 74 20 64 6f 77 6e |~.QCOM fast down|
D - 00000010 6c 6f 61 64 20 70 72 6f 74 6f 63 6f 6c 20 68 6f |load protocol ho|
D - 00000020 73 74 04 02 01 00 00 7e |st.....~ |
D - Dumping 16 bytes read
D - 00000000 04 00 00 00 10 00 00 00 0d 00 00 00 01 00 00 00 |................|
D - \\.\COM16 closed
FAILED (blank-flash:sdl-transfer-image:sdl-hello:invalid HDLC frame)