Yup,
he would need the older style black metal LCD programmer with the blue LCD screen. The software is still available on the SP website. I think it's on the 3rd download page. There are 2 revisions listed. Get the V1.38 and install it on your computer then update your programmer box. Once that is done, plug your ESC into the programmer and with a battery connected to the ESC, turn it on and it should connect to the box and computer. On the PC go to the ESC tab and then upgrade page. There will a list of software in the drop down box. select 508 no timing and upgrade. When it is done you can make changes to the settings and save. Turn off the ESC and unplug from the programmer. You are now in blinky mode.
By the way... the Hobbywing software and programmer box are the same as the SP for the GT speedies so either source will work fine.