Wireless module

SLM630B 4G module

Product parameter

  • Model

    • SLM630B

  • Power supply

    • 3.3V~4.2V (Typical 3.3V)

  • Band

    • TD-LTE: Band38/39/40/41

    • FDD-LTE: B1/3

    • WCDMA: B1

    • TD-SCDMA: B34/39

    • EVDO: BC0

    • CDMA 1x: BC0

    • GSM: Band 8/3

  • Data

    • TD-LTE: Rel 9 Cat3 TD-LTE 61Mbps/18Mbps

    • FDD-LTE: Rel 9 Cat3 FDD-LTE 100Mbps/50Mbps

    • DC-HSPA+: 42Mbps/5.76Mbps

    • HSPA: 7.2Mbps/5.76Mbps

    • WCDMA: 384kbps/384kbps

    • EVDO RevB: 14.7Mbps/5.4Mbps

    • EVDO RevA: 3.1Mbps/1.8Mbps

    • TD-HSPA: 4.2Mbps/2.2Mbps

    • TD-SCDMA: 384kbps/384kbps

    • CDMA: 1x 153.6kbps/153.6kbps

    • EDGE: 236.8kbps/236.8kbps

    • GPRS: 85.6kbps/85.6kbps

    • CSD: GSM CSD: 14.4kbps

  • TCP/IP:Embedded TCP/IP protocol stack

  • Connector

    • PCI express Mini Card connector

    • HRS U.FL-R-SMT-1 RF connector ×3

  • Dimensions

    • 51.0×30.0×4.8mm

  • Approvals

    • RoHS CCC

  • Related technical information:SLM630B

Firmware follow

SLM630B USB 4G module firmware link:firmware

SLM630B USB 4G module patch link:patch



Connection Method

  • USB connection



  • Mini-PCIe connection


EC20 4G module

Product Parameter

  • Model

    • EC20-C R2.0 Mini PCIe-C

  • Power supply

    • 3.3V~3.6V (Typical 3.3V)

  • Band

    • TDD-LTE: B38/B39/B40/B41

    • FDD-LTE:B1/B3/B8

    • WCDMA: B1/B8

    • TD-SCDMA: B34/B39

    • GSM: 900/1800

  • Data

    • TDD-LTE: Max 130Mbps (DL) Max 35Mbps (UL)

    • FDD-LTE: Max 150Mbps (DL) Max 50Mbps (UL)

    • DC-HSPA+: Max 42Mbps (DL) Max 5.76Mbps (UL)

    • UMTS: Max 384Kbps (DL) Max 384Kbps (UL)

    • CDMA: Max 3.1Mbps (DL) Max 1.8Mbps (UL)

    • TD-SCDMA: Max 4.2Mbps (DL) Max 2.2Mbps (UL)

    • EDGE: Max 236.8Kbps (DL) Max 236.8Kbps (UL)

    • GPRS: Max 85.6Kbps (DL) Max 85.6Kbps (UL)

  • Connector

    • USB: USB 2.0 high-speed interface, 480Mbps

    • Digital voice: 1 digital voice interface (optional)

    • USIM: 1.8 V / 3 V

    • Network instructions: * 2, NET_STATUS, and NET_MODE

    • UART: x 1 UART

    • Reset: low level

    • PWRKEY: low level

    • Antenna interface: x 3 (main antenna, split antenna and GNSS antenna interface)

    • ADC: x 2

  • Dimensions

    • 51.0×30.0×4.9mm

  • Weight

    • About 10.5 g

  • Approvals

    • CCC/ NAL*/ TA*

Firmware follow

The official website of the public version of the default firmware support EC20 4Gdongle module, Baidu Pan link:public version of the default firmware

The EC20 USB 4G module patch link:patch

GPS module

Product Parameter


Firmware download

The firmware defaults to open the GPS.

Modification method

GPS is available by default in firmware above, but the public version firmware defaults to close it. You can modify ro.factory.hasGPS in /system/build.prop to close or open GPS. Then, please restart your board after completing the modification.


The GPS function will occupy uart4, so please follow above modification method to close the GPS before using uart4 to do other things.