Under MTK Settings > Telephony > Band mode, you can select those band you wana to use for LTE.
Read moreHow do I enable LTE bands on any Qualcomm device?
Type in *#*#SERVICE#*#* (*#*#7378423#*#*) to see your new bands that your phone can use ! If your phone can’t boot then flash stock FTF to your device and you should have your reception back! Enjoy!
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