Been playing around with my IID tool today and i'm a bit confused
I have flashed a couple of updates and changed one or two things in the CCF files no problem
What i don't understand is when you ask the IID to read the ECU software on all the modules you get "update available" but no option to download or flash the newer software??
I have added the log below.....anyone know how to update the ones it says is available???

Active Roll Control (Update available)

Assembly (F113)
Unknown -> 7H32-5A482-AB

Assembly (F112)
NNW506280 = 7H32-5A482-AA -> None

Calibration (F124)
NNS503470 = 7H32-14D387-AA -> None

Hardware (F191)
RQT000084 = 5H32-14D384-AA = Up-to-date

Serial
eBay Item No. 002000027628

Strategy (F188)
NNV504220 = 7H32-14D386-AA -> 7H32-14D386-AB

Airbag (Update available)

Assembly (F112)
Unknown -> 6H32-14B321-HA

Hardware (F191)
YWC500083 = 5H22-14C246-AA = Up-to-date

Serial
UAV6J14AA0

Strategy (F188)
NNV501455 = 6H22-14C028-AA -> 8H22-14C028-AD

Audio System (Latest Version)

Assembly (F112)
VUX500500 = 7H32-18C815-AB = Up-to-date

Calibration (F126)
HTFB

Hardware (F191)
NNN500900 = 7H32-14C230-AA = Up-to-date

Serial
0625584840000000

Strategy (F188)
NNV505190 = 7H32-14C044-AB = Up-to-date

VIN
SALLSAA337A990791

Body Control (Latest Version)

Assembly (F113)
Unknown -> 7H32-14B476-AA

Assembly (F112)
YQE500420 -> None

Hardware (F191)
NNN500960 = 7H32-14C256-AA = Up-to-date

Serial
2E23403982

Strategy (F188)
NNV504320 = 7H32-14C184-AA = Up-to-date

VIN
SALLSAA337A990791

Cruise Control (Latest Version)

Assembly (F112)
NNW501923 = 5H32-14B588-AB = Up-to-date

Hardware (F191)
SCB500021 = 5H32-14C263-AA = Up-to-date

Serial
0314

Strategy (F188)
NNV500993 = 5H32-14C172-AB = Up-to-date

Engine Petrol (Update available)

Assembly (F113)
Unknown -> 8H32-12A650-MG

Hardware (F111)
NNN500412 = 7H42-12B684-BA = Up-to-date

Serial
38760

Strategy (F188)
NNV507360 = 8H32-14C204-FD -> 9H32-14C204-BBE

VIN
SALLSAA337A990791

HeadLight (Update available)

Assembly (F113)
Unknown -> 5H32-14B588-AB

Strategy (F188)
Unknown -> 5H32-14C172-AB

Hardware (F191)
YWC500323 = 6H42-13K031-AA

Serial

Strategy (F188)
HTFB

VIN
SALL

Instrument Pack (No update found)

Assembly (F112)
8H3210849VB

Hardware (F191)
YAH500310 = 7H32-14C226-GB = Up-to-date

Serial
0238479007000000

Strategy (F188)
8H2214C026AB

VIN
SALLSAA337A990791

Parking Aid (No assembly exists)

Hardware (F191)
YWC500550 = 6H22-15K866-AA

VIN
SALLSAA337A990791

Parking Brake (No assembly exists)

Assembly (F112)
1952220101042906102083

Hardware (F191)
SNF500120

Serial
eBay Item No. 002306020319

Strategy (F188)
MI4BAA00457.COF/F085

VIN
SALLSAA337A990791

Steering Angle (No assembly exists)

Hardware (F191)
SRO500110

Serial
1-01AB51

Strategy (F188)
VERSION

VIN
SALLSAA337A990791

Suspension (Latest Version)

Assembly (F113)
Unknown -> 7H32-5A919-AC

Hardware (F191)
RQT500160 = 5H32-14D392-AA = Up-to-date

Serial
265992456

Strategy (F188)
7H32-14D394-AC = Up-to-date

VIN
SALLSAA337A990791

Terrain Response (Latest Version)

Assembly (F113)
Unknown -> 8H32-14B596-AA

Assembly (F112)
YUD501710WVH -> None

Hardware (F191)
YUD501530WVH = 6H32-14D022-AA8WVH

Serial
06W0300000031

Strategy (F188)
NNV502670 = 5H22-14D024-AA = Up-to-date

Transfer Case (Update available)

Assembly (F112)
NNW508480 = 7H42-7H417-AB = Up-to-date

Hardware (F191)
IGG500080 = 5H32-14C365-AA = Up-to-date

Serial
PA3T42066273

Strategy (F188)
NNV505630 = 7H42-14C366-AB -> 7H42-14C366-AC

VIN
SALLSAA337A990791

Transmission (Update available)

Assembly (F112)
NNW510570 = 8H32-7Z369-EB = Up-to-date

Assembly (F113)
TGD500600 -> 8H32-7Z369-EC

Calibration (F124)
NNS506330 = 8H32-7J105-EB -> 8H32-7J105-EC

Hardware (F191)
THC500061 = 6H22-14C247-AA = Up-to-date

Serial
1026850160005503

Strategy (F188)
NNV503911 = 6H32-7J104-AA -> 6H32-7J104-AB

Vehicle Dynamic (No assembly exists)

Assembly (F112)
SRB500400

Hardware (F111)
NNN500810 = 7H42-14C227-AA

Serial
4106213TH0091

Strategy (F188)
NNV504670 = 7H42-14C036-AC

VIN
SALLSAA337A990791

Ventilation (No update found)

Assembly (F112)
NNW508620 = 6H22-10K974-AHB

Hardware (F191)
JFC500950 = 7H22-18C612-EA

Strategy (F188)
NNV505690 = 7H22-18D619-BA 2015 L494 SDV6 3.0 HSE Loire Blue
2006 L320 4.2 Supercharged - Gone
2009 BMW X5 M-Sport - Gone
2007 L320 2.7TDV6 SE Buckingham Blue - Gone
2011 Jaguar XFS 3.0V6 Diesel - Gone
2009 (59) L320 Facelift 3.0TDV6 HSE White Wrap - Gone
2008 BMW X5 M-Sport - Gone
2005 Audi A6 3.2V6 Quattro S-Line - Gone

i think the general advise on this subject/car is NOT to undate unless there is an issue.
I would say the gearbox maybe worth while however, to prevent shunt and clonk noises.

As to how. I can't recall

As above. Reflashing modules carries a risk of failure with every update

In addition, some modules will only allow a certain number of updates before it will not allow any more

Unless its a tried and tested update (like IPC, RLM Compressor, etc) ots best avoided unless you have a specific issue

If you are intent on updating, get in touch with GAP, pay the fee, and they will release the required firmware

Thanks for the advice guys.....think i'll leave it be  2015 L494 SDV6 3.0 HSE Loire Blue
2006 L320 4.2 Supercharged - Gone
2009 BMW X5 M-Sport - Gone
2007 L320 2.7TDV6 SE Buckingham Blue - Gone
2011 Jaguar XFS 3.0V6 Diesel - Gone
2009 (59) L320 Facelift 3.0TDV6 HSE White Wrap - Gone
2008 BMW X5 M-Sport - Gone
2005 Audi A6 3.2V6 Quattro S-Line - Gone