Request for Official AT Command Manual & Band Lock Commands for RM551E-GL

IoT Modules 5G Module
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Hello Quectel Support,

I currently have two RM551E-GL modems in use, each running different firmware versions:

One on RM551EGLAAR01A02M4G

One on RM551EGLAAR01A03M8G

I am requesting the official AT command manual (or PDF documentation) specific to the RM551E-GL, especially covering:

Band locking for LTE and NR5G

Aggregation control

RF configuration and custom lock logic

QCAINFO or other band reporting formats

Although I have been experimenting with commands like AT+QNWPREFCFG and AT+QCAINFO, I would like to follow officially documented procedures to avoid unintended modem behavior, especially under different firmware versions.

Could you please share:

  1. The latest AT command reference manual for RM551E-GL

  2. A guide or command set for band locking (LTE + NR5G) that is confirmed to work on firmware versions A02M4G and A03M8G

  3. Any known limitations or behavioral differences between the two firmware versions regarding band locking or QMI/MBIM interface support

Thank you in advance for your help!

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