The fact that the mobile phone can obtain 5G means that there is a 5G signal in the local
area, but the mobile phone supports much more 5G frequency bands than the module, and
the 5G module may not necessarily be able to register to the 5G network, or ask the local
operator for the 5G frequency, and the 5G module supports Under the benchmarking; or go
to the local city center (where there are 5G NR cells) to test!
• After confirming that the SIM card is normal and the local 5G network is covered,
follow the steps below to fix 5G (to increase the network speed).
AT+CNBP? //(Can copy the frequency band to Notepad) Backup frequency band
AT+CNBP = 0x100600000FC00000, 0x000000000000000046004600001e2000908dd, 0x000000000
00000000000000000000070420081a00808d7, 0x0000000000000000000000 //
AT+CNMP=71 // Fixed 5G
• The 5G operator's SIM card frequency band should cover the SIM820X frequency
band; sometimes the 4G network is queried, and the speed has reached 5G. You
can directly measure the speed to confirm that the 5G network speed is available.
• To confirm whether the test environment has 5G network coverage, you can install
Cellular-Z on a 5G mobile phone (all major app stores can download it) to view the
detailed network information:
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