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Thread: Old Avenger with V5 & 3.5" TSLCD

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  1. #1

    Default Old Avenger with V5 & 3.5" TSLCD

    Good Morning All. I have an old Avenger system that was working great, but wanted to intall V5 for customer, since it's the latest out at the time. Yes, I know V6 is here now, but not changing anything until dash works. So after V5 install with my laptop and TPS Autoset, car runs great. I plugged dash back in an it says I need to update firmware in handheld, which I've done, but it still says not compatible. I have attached two pics of what handheld says. Any help would be greatly appreciated.
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  2. #2


    There was an early and later 3.5" touchscreen. Yours may be so old that it can't be upgraded. Andrew

  3. #3


    How would I know the handheld has only been in car maybe 10 months or so, but not saying it wasn't old stock from Holley.
    Should I try a handheld from another car that's new with newer handheld?

  4. #4
    Join Date
    Nov 2014
    Ont. Canada


    The handheld is V4, the screenshot of the files on the handheld doesn't show that V5 is there. Download V5 firmware for the handheld, put it on the SD card, and install it.

  5. #5
    Join Date
    Dec 2009


    Yes, the EFI (laptop/PC) software, ECU firmware & touchscreen unit must all be version compatible (LINK).
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Holley Dominator MPFI & DIS, 36-1 crank trigger, 1x cam sync, 200A 3G alternator, Optima Red battery, R134a A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans, Frostbite 3-core aluminum radiator, Pypes dual 2.5" exhaust, off-road X-pipe, shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, BMR upper & lower torque box reinforcements, LenTech Strip Terminator wide-ratio AOD, 3000 RPM converter, B&M Hammer shifter, Stifflers trans crossmember & driveshaft safety loop, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

  6. #6


    OK, Thank You all very much. I have to get a card reader for laptop as it only has USB and charge port. I'll keep you posted. I assumed when downloading V5 on ECU with laptop it downloaded the handheld stuff as well, and then when updating device firmware it would've grabbed it when handheld plugged in. Again thank you, hopefully I can get this down today.
    Last edited by captainab; 11-24-2020 at 10:25 AM.

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