Once connected, type this:
AT^CARDLOCK?
This tells you if your modem is SIM-locked to a specific carrier. If it returns ^CARDLOCK: 2,10—you are unlocked. If it returns 1,3—you have 3 attempts left before a permanent lock. huawei modem terminal
While the web interface shows signal bars, the terminal reveals raw metrics: RSRP (Reference Signal Received Power), RSRQ (Reference Signal Quality), SINR (Signal to Interference & Noise Ratio), and Cell ID. These are critical for positioning external antennas. Once connected, type this: AT^CARDLOCK
While no definitive "smoking gun" backdoor has been publicly verified in consumer modems, vulnerabilities have been identified: RSRQ (Reference Signal Quality)
Once connected, type this:
AT^CARDLOCK?
This tells you if your modem is SIM-locked to a specific carrier. If it returns ^CARDLOCK: 2,10—you are unlocked. If it returns 1,3—you have 3 attempts left before a permanent lock.
While the web interface shows signal bars, the terminal reveals raw metrics: RSRP (Reference Signal Received Power), RSRQ (Reference Signal Quality), SINR (Signal to Interference & Noise Ratio), and Cell ID. These are critical for positioning external antennas.
While no definitive "smoking gun" backdoor has been publicly verified in consumer modems, vulnerabilities have been identified:
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