Ulefone ARMOR 21 - Device Setup and Specifications; Card Installation; Network Specifications

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Instructions for Card Installation
Memory Card + Nano SIM (1) + Nano SIM (2)
Network
 GSM: B2/3/5/8
 WCDMA: B1/2/4/5/8
 FDD-LTE: B1/2/3/4/5/7/8/12/17/19/20/28A/28B/66
 TDD-LTE: B34/38/39/40/41