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무료체험 신청하고, 200여 종의 산돌구름 스타터팩을 경험해보세요!

Recent 4gdong001 builds add 2CA (2-component carrier aggregation), boosting download speeds from 150 Mbps to 300 Mbps on compatible networks.

Connect the dongle to a Linux machine and run:

lsusb

If you see a vendor/product ID like 1234:5678, cross-reference it with online databases. Also check kernel logs:

dmesg | grep -i modem

Firmware versions often appear in the initialization strings.

Flashing typically takes 90–120 seconds. Do not disconnect USB. The tool will display:

Download complete. Switch to normal mode.

The 4gdong001 firmware controls:

Without this firmware, the hardware is essentially a brick—no LED blinking, no network registration, no data throughput.