I cant seem to update my 5800 XM to v21. It's currently at v11 and NSU wont work. It managed to detect the update and download it but during the software upgrade process it keeps hanging and saying "the connection failed" or something of that sort. It then suggests you to 1) remove the USB cable 2) remove your battery 3) place back the USB cable then the battery 4) hold the power button for 1 second and retry .. but it still fails.

Tried upgrading using FOTA but i getting the message "Operation canceled by server"


please

My phone's currently at v20 but cant detect the v21 update via FOTA or NSU.

Anyone knows what's going on?