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I did this last week. You need to flash your original rom onto your ecu using the oft. After that openflash manager will allow you to erase all data on the tablet. This “unmarries” the device from your car. Click the download button in openflash manager after erasing the device. It should say the tablet has never been used.
Do these steps before installing the ecutek license and flashing your ecu with pro ecu. Your oft will remain locked to your car otherwise.
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