Troubleshooting modem driver problems manually is a lengthy process. If you have the driver disc available, you can uninstall and reinstall the modem drivers. To achieve this in Windows XP, perform the following steps:
Hspa Usb Modem Drivers For Mac
please, i need help my laptop is not recognizing my etisalat modem. Its like i mistakely uninstalled somethings and i have tried reinstalling the modem, but my laptop is not recognizing it or accept it unlike before. but it works in other laptops
iam dlink dwp157 wireless modem its working properly in previously but in the last 2days onwards its not working properly showing always databaseerror what is the problem whether its problem related to modem or system problem
The Sierra Wireless AT&T USB connect Lightning modem features an ultra-flexible articulating hinge, designed for compatibility with a wide range of notebook designs, and enhanced usability in tight USB ports and spaces, allowing you to maintain productivity wherever you go. High speed HSPA wireless download speeds up to 7.2 Mbps and upload speeds up to 5.76 Mbps. With design features such as the microSD slot and plug-and-play automatic software installation, the USB 305 is designed with functionalityand productivity in mind.
This tutorial explains how to setup and configure OpenWrt for using a USB 3g/UMTS-modem for WAN connection using the older (and slower) ppp protocol.Many modern (and most LTE) usb modems provide qmi, mbim, ncm, rndis protocol for connection instead of legacy ppp protocol, they are faster and better, overall recommended. For more information:
Serial device modes: If a dongle in permanently configured for serial mode, it is advised not to install usb-modeswitch onto your router device. Modem sticks are commonly equipped with a flash space containing drivers and software and/or provide a slot for a micro-SD-card. These features (like the 'NO-CD' feature) can be configured in various ways. These configurations may be stored permanently. In that case a modeswitch will behave in an unpredictable way.A modem stick, that was previously configured as a modem will show up as serial devices (typically /dev/ttyUSB0-2). A default setting in combination with modeswitch may additionally show the sd-card reader. See the Troubleshooting section in this document for further information.
If your 3G modem is e.g. a ZTE K3565-Z featuring a LED SSI indicator to show it's status (Not Connected, GPRS, UMTS) you may be mislead to believe, that a strong signal strength of e.g. 17 may be better, while you only get GPRS, but a value of 4 allows for UMTS access. This is owed to the circumstance, that the device may switch over to another cell. The only method to prevent a handover between a GPRS and an UMTS station during the process of optimizing, is to initiate the device to use 'UMTS only' in the first place.
1. Connect an active USB hub to the OpenWrt router. You need to assure, that the power supply will deliver sufficent power for all of your 3g dongles. A proper estimation is, that you will need 500+ mA per one 3g dongle. Remember that modem can slightly exceed its declared power consumption in HDSPA+ modes. Be generous and pick USB hub with some power source overhead.
Note: It seems multiwan isn't perfectly suited for 3G modems in terms of stability. Modems don't reconnect automatically by HealthMonitor. Also, after a manual modem restart, multiwan doesn't use the newly reattached interface until it's restarted.
I had issues with auto reconnecting modems so I've modified script for checking if modems are up. This script checks modems separately.I've based this on a great tutorial found at =openwrt-3g#automatycznyrestartpoczenia
If you prefer to permantently switch a modem to serial/fallback mode, see -modem-wiki.com/page/Huawei+AT-commands and take actions to deactivate the json-based modeswitch for that specific product id. The following section will go into details on how to do this for the ancient E220. The following sections for MA260 explain, how such workarounds have looked like before the introduction of OpenWRT Chaos Calmer.It may in some cases be easier to delete the file /etc/usb-mode.json with a custom modeswitch file, if necessary. A previously configured serial modem, that is unknown to the kernel can be manually associated with it's driver by assigning it the manufacturer and product id as shown by lsusb as follows:e.g. for E220 in fallback mode:
Suitaple for home and business.Internet gaming, Youtube, Netflix etc services, banking services , email, Internet surfing.USB modem for countryside, working in LTE/UMTS/EDGE/GSM networks Supported operating systems: Windows 7, 8, 8.1, Mac Osx, Linux, Network standards: LTE/UMTS/EDGE/GSM Transmission speed (Max): LTE Download speed 100Mbps (CAT 4 150Mbps), Upload speed 50Mbps HSPA Download speed 42Mbps, Upload speed 5,76Mbps WCDMA Download speed 384kbps, Upload speed 384kbps MicroSD capability: Support up to 32GB MicroSD card Use only normal SIM card (Not NanoSim or MicroSim with or without adapter)
This article focuses on mobile broadband modems in the format of portable USB devices and mini PCIe cards. For standalone mobile broadband routers, simply connect to them using an interface they provide (e.g. Ethernet or Wi-Fi).
Often these devices will have two modes (1) USB flash memory storage (2) USB modem. The first mode, sometimes known as ZeroCD, is often used to deliver an internet communications program for another operating system and is generally of no interest to Linux users. Additionally some have a slot into which the user can insert an additional flash memory card.
A useful utility for switching these devices into modem mode is usb_modeswitch. It ships with udev rules /usr/lib/udev/rules.d/40-usb_modeswitch.rules that contain entries for many devices, which it will switch to modem mode upon insertion.
Depending on the device, it may expose an Ethernet network interface or provide Wi-Fi. In that case you will need to have the interface up. If the device has a DHCP server, you can use a DHCP client to match it. Otherwise, you will have to have some knowledge about the network the device expects. Such information might be obtained from its behavior in another OS. Or by searching the web. Or from the drivers, and other information, stored in the initial USB flash memory storage (ZeroCD). Some Huawei HiLink devices, for example, sometime operate at 192.168.8.0/24, with a gateway at 192.168.8.1. They also might have a web interface at
pppd can be used to configure 3g connections. Step by step instruction is available on 3G and GPRS modems with pppd. Optionally, pppconfigAUR can be used to simplify the pppd configuration using dialog interface.
Netctl can be used to establish a connection using a USB modem. An example configuration file provided by netctl is located at /etc/netctl/examples/mobile_ppp. Minimally you will probably have to specify
Unplugging, and plugging, the device is sometimes used to restart the USB device. The following describes how to do that from the shell. Doing that from the shell might be useful, if, for example, the plug is at the rear side of the PC. The method described is not just for USB modems. It should be good for many other USB devices.
This problem commonly occurs on some modems which locked by a mobile operator. You can successfully connect to the internet but after few minutes connection halts and your modem reboots. That happens because an operator built a some checks into modem firmware so a modem checks if a branded software is running on your pc, but usually that software is Windows-only, and obviously you do not use it. Fix (it works on ZTE-mf190 at least) is simple - send this command through serial port (use minicom or similar soft):
In case ModemManager does not recognize the modem, check the unit status of ModemManager.service. If you get error messages such as Couldn't check support for device and not supported by any plugin, you may have to whitelist your device using the ModemManager filter rules.
The modemmanager package ships several scripts installed under /usr/share/ModemManager/fcc-unlock.available.d and named as vid:pid with either the PCI or USB vendor and product IDs. However, they are not used if they are not in the /etc/ModemManager directory.
The Huawei USB Modem MS2131i-8 is a robust USB stick with increased temperature and moisture resistance making it adapted for industrial use. The MS2131 is a quad-band HSPA+ modem with Hisilicon chipset for worldwide use and enables the exchange of data with a transmission speed of up to 21 Mbps (D/L) and 5.76 Mbps (U/L). The modem has a life cycle of at least three years. The Huawei MS2131 can be easily controlled by using standard AT commands. In addition to the built-in diversity antenna the MS2131 also has the possibility to be connected to an external antenna via its CRC9 connector. In addition to Linux as the default driver the MS2131 can also be used in Windows 7/8, XP, Vista and Mac OS X.
Most cellular modules can be supported in Linux by using som of the in-kernel drivers. The physical data interface to the host Linux system is usually done over USB which enumerates a set of different endpoints/interfaces. A set of serial interfaces for Modem/PPP, AT commands, NMEA location data and chipset debug information are almost always available in all configurations.In addition some type of network endpoint/interface are also available and exposed. This can vary between manufacturers and chipset vendors and can also commonly be configurable by using USB configuration mode switching or through vendor specific AT commands.Recommended kernel configurations to enable are listed bellow. Many cellular modules base their Linux support on these modules and drivers. Once included in the kernel build, the USB interfaces will be detected and bound correctly out-of-the-box or after applying source code patches to the driver modules.Configs for USB serial drivers:CONFIG_USB_SERIALCONFIG_USB_SERIAL_GENERICCONFIG_USB_SERIAL_WWANCONFIG_USB_SERIAL_OPTIONCONFIG_USB_SERIAL_QUALCOMMCONFIG_USB_ACMConfigs for Modem/PPP support:CONFIG_PPPCONFIG_PPP_BSDCOMPCONFIG_PPP_DEFLATECONFIG_PPP_FILTERCONFIG_PPP_MPPECONFIG_PPP_MULTILINKCONFIG_PPPOECONFIG_PPP_ASYNCCONFIG_PPP_SYNC_TTYConfigs for USB network drivers:CONFIG_USB_USBNETCONFIG_USB_NET_QMI_WWANCONFIG_USB_NET_CDCETHERCONFIG_USB_NET_RNDIS_HOSTCONFIG_USB_NET_CDC_NCMCONFIG_USB_NET_HUAWEI_CDC_NCMCONFIG_USB_NET_CDC_MBIMPlease relate to the Techship product specific web pages for vendor specific Linux integration guides.Below is a selection of kernel commits relating to cellular module support in Linux kernels:qmi_wwan: Add support for Fibocom NL678 seriesqmi_wwan: Added support for Telit LN940 seriesqmi_wwan: Added support for Fibocom NL668 seriesUSB: serial: option: add support for GosunCn ME3630 RNDIS modeUSB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS modeUSB: serial: option: add Simcom SIM7500/SIM7600 (MBIM mode)USB: serial: option: add Fibocom NL678 seriesUSB: serial: option: add Telit LN940 seriesUSB: serial: option: add Fibocom NL668 seriesUSB: serial: option: add GosunCn ZTE WeLink ME3630qmi_wwan: apply SET_DTR quirk to the SIMCOM shared device IDIf you use any of the listed cellular modules, drivers and specified USB modes in the commits above, ensure that your kernel version already include the patch or apply it to your build. 2ff7e9595c
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