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

0 votes
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
asked Jan 1, 2017 in GMC by Doug Millard (130 points)

1 Answer

0 votes
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.
answered Jan 1, 2017 by Mike Evans (1,960 points)
Not sure how I missed that...thank you!