PCMTuner Common Software Errors And Solutions

Here obdii365.com collects some common errors and solutions to the PCMTuner V1.21 Magic Car Tool chip tuning programmer.
Keep updating.


Error 1:

‘User Not Active, Contact Support’

Pcmtuner User Not Active

PCMtuner requires activation. After installing the software, provide your email and serial number to obdii365.com to activate your device.

PCMTuner gives very simple instructions.

Pcmtuner 1

Error 2:

USB dongle is not accessible. Check if it is connected and reset application.

Pcmtuner Usb Dongle Not Accessible 2

Don’t update pcm flash software.
Install PCMTuner software again.
Use their own application.


Error 3:

‘User Already Exists’

I have the tool started since 21.11.2021. Try to register but it says already exists.

Pcmtuner User Already Exists

You have already registered so cannot register again. Use a new email address and contact us with serial number to get a new account.

If you reinstall pcmtuner on another PC, Pcmtuner software and hardware are licensed per PC. You would need to reinstall with a different email, then contact the seller again and explain the situation to get license reactivated for new pc.


Error 4:

My software version is 1.20 but not 1.21 as your website stated.

Pcmtuner Version Issue 1 

1.21 is the software version of PCMTuner. Not that important, USB just stores protocols.

Pcmtuner Version Issue 2


Error 5:

Failed to login vzperformance user account, error 419 and asks for customer verification, any idea?
Pcmtuner 419 Error 1 Pcmtuner 419 Error 2


Need to connect both pcmtuner and usb dongle with PC. Run software and login again.

https://support.vz-performance.com user name= email address,  password= serial number



Error 6: 

An Update version was found on the server.

Would you like to download build 1.2.5

Pcmflash Update Found

Press No, DON’T update software. Use their own software.


Error 7:

I get unable to use the selected interface error often
Pcmtuner Unable To Use Selected Interface

We have seen problem with usb port power causing this on some laptops.

Make sure no other usb ports are being used, try usb3.0 type port.
Error 8:
Please help i cant download scanmatik. system cannot find the file specified.
Pcmtuner Unable To Use Selected Interface Pcmtuner Pleas Help I Cant Download Scanmatik 1 Pcmtuner Pleas Help I Cant Download Scanmatik 2
Install with success. The problem is Windows 1607. Update of 21H1 resolved all problem
Error 9: pcmtuner stay on main page, cannot open anything
Pcmtuner Main Page
You need to plug in the USB key and pcmtuner connect to the sector or obd
and get the account activated.
Error 10:
Forgot login password to tuner-box.com
PCMTuner now modified and users can retrieve password
Pcmtuner Forget Password 1 Pcmtuner Forget Password 2 Pcmtuner Forget Password 3
Error 11:
PCMTuner Device Not Found?
Pcmtuner Device Not Found
Problem = the big message in the red box on screen.
Means your device is not connected either usb cable, 12v power or driver
Error 12:
Software not working after update pcm flash by mistake.
Solution: Download flash app and install it again. Check here
Error 13:
pcmtuner gives 2 erros, user not activated and device not found
Pcmtuner Device Not Found
it means 1. Your pcmtuner is not connected or powered via 12v and 2. you must wait 24hrs for activation.