Use a Class 10 U3 microSD card (up to 128GB).
: Use the original car charger included in the package during the update to prevent power failure, which can brick the device. Step-by-Step Update Guide Format the Card : Insert the memory card into the OBDPEAK K2, go to , and select Format SD Card Copy Firmware Remove the card and connect it to your computer. Copy the firmware file (typically an file) directly to the root directory of the SD card. Do not put it in a folder. Initiate Update Power on the device using the car charger. Insert the SD card once the device has fully booted up. A prompt will appear on the screen asking: "Whether to confirm the upgrade?" Wait for Completion obdpeak k2 firmware update
To update the DTC library only:
The updater will say "Success" or "Verification Passed." Unplug the K2. Wait 10 seconds. Plug it back into a standard USB charger. The screen should flash, boot normally, and show the new firmware version on the "About" screen. Use a Class 10 U3 microSD card (up to 128GB)
Resolving common "handshake" issues with wireless CarPlay and Android Auto that can cause connection failures. Copy the firmware file (typically an file) directly
Once the bar reaches 100%, the device will reboot. It is highly recommended to go into the system settings and perform a after an update to ensure no old cache files interfere with the new software. Troubleshooting Common Issues