PCM Tuner User Feedback: USB Donge is ot accessible, Please check if it connected and restar Application.Application version is 1.2.5.
Please note that Don’t update PCMflash, Pcmflash can’t update online, it is update by new USB dongle. PCMflash version now is V1.2.0, don’t update to V1.25. You can only update PCMtuner software online when it notice to do. More about PCMTuner Update please check PCMTuner Update Tips.
And How to solve the PCMFlash update to V1.2.5 and USB dongle is not accessible?
Please download this PCMFlash APP and Install it.
PCMFlash V1.2.0 Application download link: