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→DualCam update procedure
[[File:UART_MODE.jpg|alt=|frameless]]
[[File:UART_MODE.jpg|alt=|frameless]]
* After taking out SD cards, write the firmware file of V2.2.0 to the root of both (front/rear) SD cards. Do not rename the firmware file, it has to be as it is, "JPEG_IPC_APP".
* Put the cards back in, power the camera on. Do not reconnect the camera to the FMx125 or configure RS232 mode back yet.
* Wait 60-90s. You should hear a click from the rear camera after the update succeeds. That click sound indicates restart of the rear camera which happens after successful firmware update.
* Even if you don't hear the clicking sound, reconnect the camera to the FMx125 (or reconfigure RS232 mode back to DualCam) after few minutes anyway and send SMS “camgetver” command to check the versions.
* At this point the command should return “Front/Rear camera camgetver failed.” If it does, it does not mean a problem, because V2.2.0 is a transitional firmware and it does not return version. Therefore, if the camera was returning V1.9.3/1.9.2 or other 1.9.X version, this means it has updated to the V2.2.0 successfully and update procedure can continue.
* Format the cards again and disconnect from the camera the FMx125. Essentially, repeat steps 3 and 4. After that go with step 11.
* Take the cards out and write the firmware file of V2.2.2 to the root of both SD cards. The file name is “ALL221_IPC_BIN”. Again, do not rename it.
* Repeat steps 6, 7, and 8. After that go with step 13.
* Now, if all went successfully, return to the “camgetver” should return this:
Front camera V2.2.2. Rear camera V2.2.2.
If it does, that means the camera is updated to V2.2.2 successfully.
* After the update, it would be advisable to format SD cards again.
==Troubleshoot==
==Troubleshoot==