Evo GMT-4 will not program for 2008 GMC Sierra 2500 Diesel

Question

I purchased an EVO GMT-4 for installation in a 2008 GMC Sierra SLT 2500 HD. After instalation of the unit with the T-Harness, I attempted to program the unit.  I followed the directions, but after I turned he key, instead of the blue light flashing, it just turns of and stays off.  I attempted the programming several times to no availl

 

It came with:  Hardware Vr. 6

Firmware Vr. 70.16

Date:  11/2016

EVO-GMTx Preloaded

Answer 1

The install guide shows minimum firmware required is 70.24. You will need to connect the evo to a flash link updates to update the firmware.

Comments

Not sure how I missed that...thank you!