Unable to update to 3.1.3

3DR RTF 2013
APM 2.6

Started downloading firmware.diydrones.com/Copter/st … Copter.hex
Finished downloading /var/folders/qp/dp4kph6n4llb0lt5s2yr1y2r0000gn/T/qt_temp.M19821
Opening firmware file…
Hex file loaded: 238182 bytes
Reading board sig
Board sig: 1e9801
Setting start address to zero
Response: 0600
0x100 Split block count: 930
Flashing firmware…
Failed writing block 0
Failed while writing block 0

Disregard this post, I changed cables and I’m now rockin 3.1.3.