Oppo K7x 2020 5G Dual SIM TD-LTE CN 128GB PERM00 (BBK R2111B) - Frequency Bands and Network Compatibility

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K7x 2020 5G Dual SIM TD-LTE CN 128GB PERM00 (BBK R2111B)
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The Oppo K7x 2020 5G Dual SIM TD-LTE CN 128GB PERM00 (BBK R2111B) supports 4 GSM bands, 7 UMTS bands, 12 LTE bands, 1 CDMA band, and 4 5G NR bands. See the tables below for details.

This device accepts the following SIM types to connect to mobile networks:

  • Nano-SIM (4FF)

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Supported Frequency Bands (28)

GSM

Name Interface
850 MHz GSM
900 MHz (E-GSM) GSM
1800 MHz (DCS) GSM
1900 MHz (PCS) GSM

Supported GSM Protocols

Name Generation
GPRS 2.5G
EDGE 2.5G

UMTS

Name Interface
B1 (2100 MHz) UMTS
B2 (1900 MHz PCS) UMTS
B4 (1700/2100 MHz AWS 1) UMTS
B5 (850 MHz) UMTS
B6 (850 MHz Japan) UMTS
B8 (900 MHz GSM) UMTS
B19 (800 MHz Japan) UMTS

Supported UMTS Protocols

Name Generation
UMTS 3G
HSUPA 3.5G
HSUPA 5.8 3.5G
HSDPA 3.5G
HSPA+ 42.2 3.5G (4G speed)
DC-HSDPA 42.2 3.5G

LTE

Name Interface
B1 (2100 MHz) LTE
B2 (1900 MHz PCS) LTE
B3 (1800 MHz +) LTE
B4 (1700/2100 MHz AWS 1) LTE
B5 (850 MHz) LTE
B7 (2600 MHz) LTE
B8 (900 MHz) LTE
B34 (TD 2000 MHz) LTE
B38 (TD 2600 MHz) LTE
B39 (TD 1900 MHz +) LTE
B40 (TD 2300 MHz) LTE
B41 (TD 2500 MHz) LTE

Supported LTE Protocols

Name Generation
LTE 4G
LTE 100/50 4G
LTE 150/50 4G
LTE 300/50 4G
LTE 600/50 4G

CDMA

Name Interface
BC0 (800 MHz) CDMA

Supported CDMA Protocols

Name Generation
cdmaOne 2G
CDMA2000 1x 3G
CDMA2000 1xEV-DO 3G
CDMA2000 1xEV-DO Rev A 3G

5G NR

Name Interface
N1 (2100 MHz) 5G NR
N41 (2500 MHz) 5G NR
N77 (3700 MHz) 5G NR
N78 (3500 MHz) 5G NR

Supported 5G NR Protocols

Name Generation
NR 1500 5G
NR 2600 5G

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