carprog 8.21 Perfect Online Version needs to be activated before using it to read & write ECU.
Firstly got one carprog 8.21 Perfect Online Version here
Next step is to install and active the carprog 10.93 software, the operation video was shared on Youtube:
How to active carprog 8.21:
Create a new folder “Carprog 10.93” on Desktop
Open Carprog 10.93 disk
Copy files (except “carprog821.rar”) and paste it into the folder “Carprog 10.93” on Desktop
Run “Carprog v821” resister tool and copy hardware ID to a Notepad “8.21” established on Desktop
Provide ID to @ obdexpress.co.uk, wait for the name and key to resister
Carprog 8.21 registration success!
Go on to check if it is working.
Carprog 8.21 can be used!