Please note DJI's latest message on their download page: Quote "The All-in-One firmware v126.96.36.199 does not include remote controller update package. However, for the best user experience, it is recommended that the users who are using the firmware that older than v1.3.0.00 to update the firmware to v1.3.0.00 before updating the aircraft." Inspire 1 - Downloads - Manuals, Software, Drivers download | DJI This affects users who have NOT kept up to date with FW upgrades. If users 'jump' from FW v1.2.1.06 or older then there may be an issue with an 'Upgrade Required' message regarding the remote control. In these instances, as per DJI's instructions - do an incremental upgrade to v1.3.0.00 FIRST and then do the upgrade to v188.8.131.52. This will prevent the message from appearing. I will make this a sticky for the time being.