Xiaomi redmi note 3 SD version running on China from won't do OTA update

Hi a while ago I've imported a redmi note 3 pro from China to Canada. Everything else is working fine but I've had this for a month already and the updater app tells me that I have no new OTA updates which is rather weird, since we're supposed to get miui updates very often. Do u guys know why it's happening? Is it die to a locked bootloader or the wifi here in Canada doesn't work well with the Chinese servers? By the way I also tried to flash a ROM from the miui website for this device but it didn't work either so please help

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