Thanks for your reply, I have tried all off the above that you mentioned with no success, Motion controller will not enter pair mode at all and only shows two flashing green lights in the middle off four, I have tried re-installing dji assistant but still get upload error, two green lights must translate to an error with controller? also when plugged in to charge lights move in the wrong direction eg: from right to left so larger LED on left is not lit? do you have a link to the correct firmware I can download myself and force update using another platform? thanks

Hi there,
thank you for reaching out.

We apologize for the inconvenience. The firmware update of the DJI FPV drone may fail under the following conditions:

1. The remaining battery level is less than 43 %.
2. The aircraft or remote controller is powered off during the update process. In this case, please power on the aircraft and update again.
3. The network connection stops when downloading the firmware package.
4. If the drone firmware update fails after multiple tries, or if the drone fails to link to the remote controller, it is possible that the firmware version of the aircraft and that of the remote controller are inconsistent. We recommend that you use DJI Assistant 2 to update the aircraft and the remote controller to the latest version separately.

https://www.dji.com/au/downloads/products/dji-fpv

Please keep us posted. Thank you.

Thanks for your reply but you have not really understood my problem,   I am not trying to update the drone firmware.I have purchased a DJI MOTION CONTROLLER from eBay, its old but has never been activated, I checked the battery lights which showed 3 green lights. I opened DJI assistant 2 (FPVSERIES) to activate and attempted to upload the latest firmware, The Update failed at 50% with the screen frozen, I disconnected and reconnected to attempt upload again, and a window message popped up "Firmware incompatibility detected between some modules and current device. Update your firmware?" I attempted this update numerous times and it fails at 40%, the controller has two middle green lights flashing, it does not beep at all, and cannot enter bind mode. Has the battery become to discharged to allow updates? slill shows 3 lights but will not charge higher than 3, can I download the firmware somewhere other than DJI assistant to apply using DroneHacks? or is there another way to fix this? the current version is V02.00.0700, when this window pops up "Firmware incompatibility detected between some modules and current device. Update your firmware?" it tries to install V00.05.1003 and fails, during upload computer makes the noise off the device disconnecting as if the controller is losing power? surely the two green center lights flashing indicates an error?Another weird issue, when connected for charging lights are moving in wrong direction? left to right and larger led on left is not lit up?