Hello,
I am trying to setup a connection to Vodafone Germany 5G networks. I was able to connect to very specific 5G NSA connections, others flatout fail. LTE carrier aggregration seems also rather lackluster - my phone constantly beats the RM500Q module in speeds.
But the main reason we bought the module was to monitor 5G SA connections - which dont set up at all. I am using the newest firmware with V2.2.2.3 windows drivers.
I can see the SA cell being discovered as serving cell, my sim card is able to connect using a S21 ultra just fine. What am I missing?
Dear Sir,
Thanks for your question.
What is your current firmware version, you can use ATI to query.
What is your testing environment, with windows PC or linux AP?
Please help to send below at commands and tell us the returning results.
ATI
AT+QCFG=“USBNET”
AT+QENG=“SERVINGCELL”
By the way, in order to better support you, please help to answer below questions, thanks!
Company name and located Country:
Project name (so we can refer to it in the future):
Application type:
Estimated Annual Units (for series production):
Project timeline:
Current status:
From which distributor do you buy Quectel modules & EVB kits?
+QNWINFO: “TDD NR5G”,“26202”,“NR5G BAND 78”,628800
+C5GREG: 0,1
Testing enviroment is PC for quick testing of different locations and Raspberry / Linux for the actual project.
I work for Vodafone in Germany. we might want to order 100+ units if we can get the modems to work properly. The timeline for the project is running out quite fast, sadly, so quick help would be appreciated.
Poor 5G NSA support is a small bummer, but the advertised 5G-SA bands not properly working is a much bigger issue. It very clearly states in the brochure that 5g-SA band n78 is supported, and then I am not able to get a connection.
Quectel support is trying to help me via Email, I hope this issue can be resolved.
Hello,
I’m having a problem connecting my Quectel in SA mode. The connection isn’t established, the cell is detected, but the RRC procedure fails after the RRC request.
Here is my module version :
[2025-06-10 16:31:11:941_R:] AT+Cversion
The UE seems to somehow reject the RRC Setup — at the time of the expected PUSCH there is no power since the EPRE is extremely low (around -114 dBm), which results in no uplink transmission.
Can you please help us understand why the UE does not respond to the RRC Setup and sends no UL signal? Could this be related to firmware, RF calibration, or some internal rejection of SA mode?
The UE seems to somehow reject the RRC Setup — at the time of the expected PUSCH there is no power since the EPRE is extremely low (around -114 dBm), which results in no uplink transmission.
Can you please help us understand why the UE does not respond to the RRC Setup and sends no UL signal? Could this be related to firmware, RF calibration, or some internal rejection of SA mode?
Dear @khadimba
Is it test with instrument? like CMW500 or others?
Is there any other devices work fine in same environment?
Please check the configurations of format4, it reported error.
Hello dear @silvia
When I connect via SA, the query attaches to the network, but on the qnavigator, the network is not registered, and there’s no service on the PC either.
Is this the driver?
