KT200II ECU Programmer feedback: Simos pcr 2.1 . Unlock ,read and write obd2 ,100% work.
The time to unlock in OBD mode is about 20min.
Here are 2 images of writing Simos pcr 2.1 with KT200II.
KT200II Simos pcr 2.1 Unlock Read and write via obd2-01 KT200II Simos pcr 2.1 Unlock Read and write via obd2-02

And here is one video on KT200II is writing Pcr 2.1 VW caddy 2015 via OBD:

How to use KT200II to unlock PCR2.1 via OBD?
Let’s take the example of unlocking an Audi A1 1.6tdi PCR2.1 via OBD:

Select “unlock via OBD.”
Read the “VR file.”
Write the “VR file” and apply the patch.
Be mindful that the Audi A1’s battery is located in the boot, so make necessary preparations before writing to save time.
This process typically takes around 17 minutes.
Next, proceed to the “Read/Write” option:

Choose “Done – read – fast.”
Modify the file as required.
Write the modified file, which usually takes around 3 minutes.

That’s All.