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Kess/Ktag clone correct checksums report

Test report of Kess V2/Ktag for checksum correction, help you to get a decent tool to do checksums.


SID208: YES!

My Ktag Clone was 6.070 and Updated few Months ago in EU and Rework the PCB Complete.
Have NEVER Problem!
Continental SID208 Read & Write without Problem


EDC17C50 and CP45: YES!

I have teste Ktag 7.020 on several F-series.
Works perfect.
EDC17C50 and CP45 (520d and m550d)



I was battling with an MSS60. According to this ECU, you must do a full read and then straight after that you must do a full write. After you've done that, the ECU is open for you to load your tunes based on partial reads and writes. The reason for the full read and full write is that it takes off the tuning protection on the ECU.
I did a full read a month ago, and only did a full write a week ago. Whenever I tried to write the tune file, the ECU would be bricked and come back with a checksum error after the write. So the secret is to do the write directly after the read. I did this with a Galletto but the process is the same for Kess. I now write my custom tunes with Kess to the ECU, and KSuite corrects the checksums for the partial writes.
The process is different for other ECUs I'd imagine.


BMW edc 17: NO!

Vedc 17 Cp14: NO!

Audi edc17 cp20: NO!

Guys my ktag Reworked, work werry good on edc 17 but no checksum correction, BMW edc 17 no checksum corection, read write perfect , checksum corrected with winols, all ok , edc 17 Cp14 vw same, edc17 cp20 Audi same
Had somebody tested 7.020 China on BMW F-series, I have no ecu to test with


sagem3000: NO!

I used to have problem with checksum in latest sagem3000.


Vag edc17cp14: NO!

i have genuine full KTAG , i confirm that has many problems to. Tested on edc17cp14 vag , will fail to correct checksum.


Note that Maybe for the clones failing to correct ck on newer Ecus might be down to online/ server calculations or original software being incorrorct when it is cracked


Tech support: Checksum Error:

Every time, when you run k-tag k-suite software, read the ecu information, and then show "checksum error",  the k-suite software is shut down.


If You have problem with checksum when R/W only flash, Your OS dont have C++ library. Two way:
– download C++ libarary from net -> instal it
– download from alientech website ksiute 1.85 -> install it, it will install C++ automatically -> remove dir C:KSiute -> Replace it with KSiute dir which You get from Your clone supplier -> restart WIN -> be happy with Your master ktag.

Solution tested and works on 3 computers.


I think it is helpful and make less stress for ktag clone users.

Ktag/Kess confirmed to correct checksums NO ISSUES:


FVDI 2014 vs FVDI 2015 vs FVDI 2018

What is FVDI 2018?

FVDI 2018 is coming soon as a replacement FVDI2014, FVDI2015, FVDI2016, with AVDI 18 software & VVDI2 software.



FVDI 2018 Review:

This 2018 version has the same software versions as the 2015 version except that has updated software for VAG and BMW/Mini which is from the VVDI software. IMMO 4 and 5 key programming is working. Only tested on 2012 Scirocco 2.0 TSi and 2014 Audi A5 2.0T.

Mercedes software still has bugs for odometer correction. W204 did not work.

Overall it is good value for money. Not as good as OBDStar X300 DP pad for keys and odometer but has many better functions like programming and calibrations.

FVDI 2018 software download:!RW4gTDRQ!t-JvU38sWLrw4CEmpidu0TZzkNbhGG...



FVDI 2014 vs FVDI 2015:

FVDI 2015 supports online function

FVDI 2014 support onffline function


FVDI 2015 vs. FVDI 2018:

Fvdi 2015 has v7 quickloader and it works with the last 2015 fvdis

Fvdi 2018 has software with v2 quickloader including VVDI Functions For BMW and VAG

FVDI 2014 vs FVDI 2015 vs FVDI 2018:

FVDI FVDI 2014 FVDI 2015 FVDI 2018
Image fvdi-2015 fvdi-2015 fvdi-2018
AVDI software Yes Yes Yes
VVDI2 software No No Yes
VVDI2 4th/5th IMMO for VW No No Yes
More Yes Yes Yes




KTMflash Reads/Writes ECUs- How to?

How to use KTMflash to read/write ECUs? Here is the details steps:

1You have to use software from

2 ECU flash  ktmflash-install-1and the like cannot be installed in your PC/laptop before; that is, for your PC/laptop, it must be the first time to install KTMflash software.

You’re asked to re-install a clean operation system and install KTMflash sw with the help of a video of installation tutorial; otherwise, your device would be locked.

Video: How to install KTMflash for ECU read/write

3 Here are foldersktmflash-install-2 (KTMflash English... and KTMflash software...) inside the CD you should have. You can find out software and real tests which helps you a lot to use KTM flash.

4 The reason for why do you buy KTMflash is that, it’s good at reading Infineon ECUs and gearbox (transmission) ECU.

5 When you are reading encypted Infineon or ECUs, please read the password file (with reference to our video here). If the sw asks you to TURN OFF THE POWER SUPPLY FOR 2 SECONDS, please follow it.If the power is not off for 2 seconds, the pop-up might be appeared again in the interface. So, just turn it off for 2s and use the sw.


Attachment: KTMflash ECU List