@contiomega For RMA you can send it to another country by post they have instructions for it. For BROM mode, there are some guides in the internet for unlocking it (or something like https://www.hovatek.com/blog/how-to-force-a-mediatek-device-into-brom-mode/), but I hadn't heard that it can be locked before.

@taillecrayon They should be flashed with mtk client. Instructions are available on the xda thread.