Wont Read 2009 LTZ Silverado 5.3,TCM Security Access Denied,Failed Meassage PLZ HELP!

[EFI 956]

i was about to tune a 09 LTZ Silverado w/ 5.3 and K&N FIPK and only 1,200 on it, i hooked up my MPVI Pro and read the file, all was good even read engine untill it was reading TCM and under "Requesting Access" i got the FAILED message with TCM Security Access Denied - Exceeded Number of Attempt, ive tried over and over again with standard protocal when reading a file and nonthing.

Any Help, could it be the Truck.

Thank You!

[PitchblackC3]

Do you have the latest beta?

[carseat-qatar]

Send e mail to support@hptuners and they will resolved your issues

Good Luck'

[EFI 956]

im about to donwload BETA, Thanks

Will tell you guys how it went.

[frankmarroquin]

Had the same problem... New Beta worked for me...

[Rfactor]

Wont Read 2009 LTZ Silverado 6.2,VCM Requesting Access Denied,Failed Meassage, HELP!
I just recieved my HP Tuner, Can any one Help with
" Requesting Access Denied,Failed Meassage "
Also the S/N# is reading correct, but the vehicle says on the read out
I have a 1999 Chevy Tahoe ?????????????????????????????????????

I been searching the hell outa these forums
tried new beta, does nothing ????????????????????????????????????

HELP HELP HELP

[Google]

what beta vs do you have?

[IDRIVEAG8GT]

what beta vs do you have?

I restate the question stated above.