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 Picture 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. 3.Note The GPS function will occupy uart4, so please follow above modification method to close the GPS before using uart4 to do other things.