How to rework k-tag 7.020 clone to work as good working tool?

I recently get my k-tag 7.020 clone with k-suite 2.23.

Win 7 Home Premium 64bit (fresh install, never connect to internet).

I try to read 3 toyota ecu via rainbow ribbon cable ( all ecu are DENSO 275036-1152 (family 752)

I connect the cables and the bridge, but when i push the button to read the ecu, despite the connection on the ecu pcb seams goods (inspected via magnifying glass), it appears the following message (for no connection)

Note tha i have solder pins at the end or the ribbon cable for more easy and stable soldering.

Does anyone have any idea?


ALL china clone need rework, i suppose that when you plug 12v to the tool one led blink on-off and then red led turn on (702 and wgs are wrong and the others have low quality)


here are pic with simply rework, with this you have good working tool


change all components with good European (not china) and all will work

Also, you could try to install ksuite 2.23 on WIN xp or win7 32bit.

Here steps on how to install ksuite 2.23:

If you want to spend less money and have skills to do the rework job. You could buy a k-tag 7.020 clone at best price:

Here k-tag 7.020 clone PCB display (Green PCB & Blue PCB)

Version 1: Blue PCB



Version 2: Green PCB



Feedback: I’ve got two versions of ktag 7.020, one with green PCB and the other with blue PCB. No much difference when using both.


K-tag 7.020 clone can work for what it costs, here test reports:

(Big thanks to all users’s feedback)


I try with edc16c31 smart 451, read write in bdm ok with ktag, read write ok in obd with kess.


I tested with a lot of edc17 in these day and read and write without problem.


I made a video with a edc17c50 bmw 120d f21 with gpt, read and write ok.

I have a fiat edc17c69 virgin (without software inside), this I can’t read.


My Ktag 7.020is able to read and write EDC17C69


7.020 version runs faster and more stable.


Ktag 7.02 good working. no problem.


Ktag master 7.020 displays diagrams via words, not pictures. It’s better to understand


I tried to read Bosch edc17c69 gpt Fiat 500X and not working, with ktag ori read and write ok.


I read a lot of edc17 and few edc17 with gpt and all read and write ok maybe there is a bug in sw/fw from alientech.
virtual reading is = servidor ALIen.
virtual reading id ecu , and download firmware.
Not real soft.
uds vag =


I compared 7.020 with my old 7.003. KTAG fw 7.020 adds 100+ ECU types and supports new car models e.g. Toyota 76FXXX, PSA 17.4.4, Ford E83, VW 17.5.5 (1766), Mercedes-Benz 276 ECU, Toyota 76F, etc. It should be a good budget i think.


The clone Ktag 7.020 canreadmy 2013 Opel Insignia EDC17C59