You said you had a A unit, which, when upgraded via FW will read as a version D.
Whatever the unit believes it is, it is STILL an A unit. I have an A unit and cannot go higher than 3810. Have tried 3970, 4020 using a gazillion different burning methods. Ba-bow. No dice.
Trust me...3810/V5 maps/Personal Poi's and personal Splash Screen is more bling than you need. 4020 is not giving you any more bang for buck.
MY16 Touareg 4.2Lt V8 TDI/Pure White LED lightbox/REDARC Brake Controller/ Racechip/iDrive Throttle controller
2008 GOLF .:R32/5DR DBPE DSG/SUNROOF/RNS510/PRIVACY TINT/CONTI SC3s/MILLTEK CATBACK NON-RES/9W2 BT/"MYR-032"
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