As you can see, the MT6797 (Helio X20) offers the FDD-LTE frequency B20 (800mhz), in several models (Vernee Apollo Lite, Vernee Apollo X, HomTom HT10, Elephone S7, Doogee F7, etc.). Leeco S3 X626 not to make the FDD-LTE B20 / 800mhz frequency available, it will be a software / firmware, not hardware issue, unless you have a better opinion.
Does anyone know how to unblock this frequency?
Thanks
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