| Command | Expected response | Meaning | |---------|------------------|---------| | AT | OK | Basic communication | | AT+CGMI | SIMCom or manufacturer | Manufacturer | | AT+CGMM | SIM800H (or similar) | Model | | AT+CGSN | IMEI (15 digits) | Serial number | | AT+CSQ | +CSQ: 18,0 (0–31) | Signal quality (9+ = usable) | | AT+CREG? | +CREG: 0,1 or 0,5 | 1=home, 5=roaming | | AT+COPS? | operator name | Network registered |

ATA Hang up: ATH

: The driver enables the USB interface to transfer security data between the smart card and the software at necessary speeds .

Before downloading, confirm which version of the ROCKEY 200 you have. Most "GSM" applications (like unlocking tools or box interfaces) use the ROCKEY 200 Standard ROCKEY 200 (HID) HID Version: Usually "plug-and-play" on modern Windows versions. Standard Version:

If you are searching for this specifically on GSM-Forum, it is likely because a tool (like a phone repair box) isn't recognizing the dongle. In most cases, the official site provides the standard runtime environment if the "Plug and Play" feature fails on older OS versions.

While there are many download sites on the internet, finding a safe, virus-free link is crucial. The most trusted source for GSM-related files has historically been .

: Search for "Rockey2 SDK" or "Rockey2 Driver" on the Feitian website.

Before You Go... Check These Out!