I contacted my dealer about a dead Zenmuse, which is now 45 days old. B&H said it was out of their 30 day window and I needed to contact DJI directly. well, I have tried three times and no luck. What good is a product, if dealers point the finger back to the manufacturer and they never respond! I used the upgrade board for the install. But, the upgrade board will not support the Iosd Mini. So, I tied in a PMU-V2, Gcu-v1 with the Iosd Mini. There is no response from the Zenmuse when power is applied to it. No Led to show it is powered. In effect, I have a worthless Zenmuse and no way to get any support from Dealer or DJI. I spent money and received nothing in return. The delay installing was due to waiting for all the parts to arrive, to do the complete install. I added the Anti-Gravity Motors to the build to help off-set the weight issues. But once everything got connected the Zenmuse failed to respond and so has DJI Support!