Review: Micromax MMX 310G 3G USB Modem

3G services are finally rolling out all over the country. We decided to review the various USB modems available in the market. We started out with the Micromax MMX 310G 3G USB modem and were really pleased with the results of both the software and hardware that came along. This modem can be used with any GSM sim card be it Airtel, Docomo or BSNL among various other 3G providers in the country. Unboxing pictures and full review after the break.

Micromax MMX 310G Review:

Unboxing Pictures:

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Specs and Price:

This unit cost me INR 2200 and does not have any lock on carrier. You can use it with any carrier worldwide. It supports HSDPA/UMTS/EDGE/GPRS/GSM. The maximum download speed of this unit is 3.6 Mbps. There are other costlier modems available which offer speeds upto 7.2 Mbps but I don’t think I’ll be able to benefit much from that yet given the current speeds offered by our cellular providers.

You can also use this to read your MicroSD card and as a portable disc drive. Please note that when a card is inserted(opposite side of the SIM tray) the ROM will not appear on your computer. So don’t insert any MicroSD cards while installing.

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The SIM is installed using a tray which slides out partly. While there are no issues with the tray and you can install micro-sims with a little effort, I would have preferred an open mechanism where inserting the micro-sim is easier with metallic contacts visible. Since most of my SIMs are cut into micro-sims for the iPhone 4, I faced this difficulty. Once I get my sim card adapter this should be not an issue at all.

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Drivers and Software Compatibility:

I was really not expecting Micromax to do so well in this category. In the past I have had a lot of issues with the drivers of Reliance NetConnect. The Micromax MMX 310G does not come with any extra CD. You just plug the USB modem into your computer and then choose the Installer for your OS from the modem’s ROM.

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It is compatible with Windows, Mac OS X and Linux. The Mac installation on Snow Leopard was a breeze for me.

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The second great thing about the software is that it has pre-configured profiles for almost all the network providers worldwide. From AT&T and T-Mobile in the US to Airtel 3G and BSNL 3G in India. You don’t have to worry about the nitty-gritty of APN address and phone number to dial etc. Just choose your network from the list and set it as default.

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I tested the unit with my BSNL 3G Sim and the modem worked perfectly. I got peak speeds of 3.2 Mbps and average speeds of 2.4 Mbps outdoors. Indoors the speed was a tad lesser. Obviously, this is not the modem’s limitation but how 3G networks function. The closer you are to the broadcasting towers the better the speeds.

Do share with us what 3G devices you use and how do they perform for you.

Article by Rajat

Rajat has written 172 articles.

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Comments on this entry are closed.

  • Sumit February 10, 2011, 7:00 pm

    Thanks for the review. I am using this Modem from last six months and I recommend this modem coz one can use this with any sim card…..
    Review is really great as only after reading this I came to know about the card reader function of this modem 🙂

  • Kunal @ TechHogger February 11, 2011, 9:46 pm

    Good review Rajat. It seems this modem works really well (by the way you have reviewed it). More over the networking listing of almost all the operators is what I liked the most about this modem. BTW how does BSNL 3G works? I’ve never used it.

  • Rajat February 12, 2011, 2:06 pm

    you welcome sumit.

  • Rajat February 12, 2011, 2:10 pm

    Hi Kunal. BSNL 3G is really great to use and has the widest network so far among all the providers. the only things that’s left is download speeds.

    the speed is inversely proportional to distance from tower. if you’re close you’ll get 3mbps and if you’re far it goes on decreasing and reaches 155kbps(gprs/edge speeds) that’s the case for not just bsnl but Airtel and others too. so if you have good reception in your home/office go for it.

  • Sudar February 12, 2011, 3:35 pm

    Pls. Let me know few more brands available in India with same category with higher speeds!

  • prince February 17, 2011, 1:44 am

    hi rajat, review is realy too good .
    actually m going perchase this modem but can u tell me onething? with 2g net of bsnl ,can we use mics or not? is there any intrupet will come come or not in voice calling?

  • Rajat February 17, 2011, 8:47 pm

    teracom and huawei make similar modems.

  • Rajat February 17, 2011, 8:50 pm

    thanks. 2g speeds will be slower. something between 10-20kbps. voice calling will work but might get disconnected frequently depending on coverage in your area. for example, at office my airtel 2g works just fine for voice calling over skype or yahoo.

  • Sakshi February 24, 2011, 2:10 pm

    can yu plz tell me which one is more better micromax 310g or 350g n plz provide with d difference in both?

  • sudar February 24, 2011, 2:43 pm


    It would be helpful if you post the details of retailer or the distributor where I could get these. But I could get only Huwai!

    I have tried to en quire most of the shops, where I could not find.

    Pls, Provide details with each State!


  • Sakshi February 24, 2011, 3:17 pm
    go to this url n dere select yur state and yu will get d details of the dealers in your corresponding city.

  • Parag March 4, 2011, 4:55 pm

    hi Sumit thanks for the review

    i have a problem regarding this device… i am using this device in U.P from last 5 months,it works fine but when i comes outside u.p then it shows no signal i have been changed sim as per local network i think is there any lock?is is possible to break this lock?

  • sumit March 4, 2011, 8:18 pm

    Dear Parag, I have been using this Modem outside U.P from a long time…I never faced any such problem……Go to the Settings and select network as Automatic and Network Mode as UMTS….as UMTS provides a better speed than GPRS…..but overall its BSNL so one cant predict abt network 🙂

  • abhishek March 11, 2011, 9:52 am

    plz tell me how can in set the settings of micromax 3g 310 modem

  • Anil March 13, 2011, 9:46 pm

    Hi, sumit you have done a great job, disclosing almost everything of this modem. I have just purchased this and using with reliance and getting normal speed. I just want to know, if Docomo gives good speed as comparison to reliance? If yes docomo has cheapest plans. Further, Can I use CDMA sim in this card?

  • Rajat March 14, 2011, 1:55 am

    docomo will give you great speeds at times but it is also very inconsistent. at other instances it will simply refuse to work. I got really tired trying to get docomo to work while travelling. docomo’s support had absolutely no clue what’s going on and could not help either.

    And this device will only work with gsm not cdma.

  • vinit March 14, 2011, 10:15 pm

    can you please tell me how to install it onto the linux.
    in the rom there are no setup file for it so can you please tell me from where i can find the setup file of it.

  • ragu March 27, 2011, 10:39 pm

    in micromax 7.2mbps data speed modems are available are not, if available pls tell about that performance friends…!

  • Anil March 29, 2011, 8:19 am

    No Idea.

  • Chandran April 4, 2011, 10:09 am

    Is there any software to make it work as a simple phone (not internet modem) with a valid SIM card incerted and connected to a PC with mic and speaker.

  • Ghanashyam April 8, 2011, 9:19 am

    i am Ghanashyam. i Have a Problem, can use this with any sim card…..
    and Devise is found but displayed is “No Service”.
    So tell Me

  • saket April 14, 2011, 12:45 am

    i am from bangalore and i want to know about the retailers who sells it

  • avinash April 20, 2011, 2:44 pm

    every thing is ok but i am suffering because ther is no call facility on modem please help me out

  • Anil April 22, 2011, 5:22 pm

    Yes you can’t call with this datacard, but if you have webcam installed in your computer and the same is available in your calling party you can do it with seeing pictures too.

  • Anil April 22, 2011, 5:25 pm

    I have used docomo in this card which is giving very poor speed of 6kbps, so I am again using reliance which is giving 28kbps.

  • shikha shukla April 24, 2011, 6:54 am

    hiii i want to know how can i be able to check the total usage by using this device.

  • Anil April 25, 2011, 4:18 pm

    Hi Shikha, different companies have diff. procedures to know the data used. Like in Reliance you must send MBAL to 55333. and in docomo *111# will do the work. Thus first you have to tell which SIM you are using?

  • Sumit May 5, 2011, 4:02 pm

    Please let me know how to install this in Linux, am a new user of Linux and not much aware abt installation procedure on it..

  • Anil May 6, 2011, 7:56 am

    Sorry, this datacard does not support linux, this support only windows 7, 2000, vista and XP. So before using this card you first install a windows in your system.

  • Saranya June 1, 2011, 11:05 am

    i’m using this datacard with airtel sim..pls tel me how can i check the speed.?its very slower.And also which sim s better for this product?

  • RAMESH BABU June 2, 2011, 4:13 pm

    please send the reliance gsm gprs settings into my micromax usb 3g modem (mmx 310g).i am unable to connect the net with reliance gsm sim which is infact is running net in my nokia x2-00.

  • Anil June 3, 2011, 7:30 am

    @ Ramesh Babu. please contact *355 Reliance 3G helpline. you will get help there.

  • Anil June 3, 2011, 7:35 am

    @Saranya. It is as simple as ABC. Just hit Statistics tab at your MMX310 G USB manager which you get while establishing a connection to your system.

  • lalit June 3, 2011, 11:26 am

    hiiiiiii i am lalit using mmx310g usb modem with reliance 3g sim….it give downloading speed of 7-10 kbps……plzzz tell me how can i speed it up………………

  • Anil June 3, 2011, 5:08 pm

    i think you are far away from Reliance tower. because speed is inversely proportional to distance from the tower.

  • Timir Biswas June 11, 2011, 12:58 pm

    Dear sir
    I am working at Maldives, in a small land. our room don’t have net connection os that I bey a 3g USB MODEM, Model-micro max mmx310. when i talk to my family in India I heard my family talk, but they don’t heart my talk. Please help me how to use this MODEM.

  • Rajat June 12, 2011, 12:37 am

    talked using what?

  • Rajat June 12, 2011, 12:46 am

    set network mode to 3g instead of automatic

  • Rajat June 12, 2011, 12:48 am

    depends on your location. the one that gives you strongest signal will get you greatest speed. therefore one whose tower is closest to your home or office.

  • Anil June 12, 2011, 2:34 pm

    No idea how to use this modem for a talk?

  • Rajat June 12, 2011, 3:32 pm

    you could use things like skype, yahoo etc.

  • Pinkosh June 24, 2011, 4:10 pm

    can i use 2g in this modem as well as 3g of any service provider and what is the price of this modem and where should i purchase it in udaipur (rajasthan) any contect no for inquery

    whitch model are available with 2g and 3g with all service provider

  • ANGEL June 25, 2011, 1:52 am

    please send the reliance gsm gprs settings into my micromax usb 3g modem (mmx 310g).i am unable to connect the net with reliance gsm sim .

  • Anil June 25, 2011, 8:21 am

    @Pinkosh. Yes this modem works for both 2g and 3g and for any network as well. you can easily find it anywhere across india. for further news visit
    @Angel. You need not get Reliance settings, as one is given in datacard software itself. you just need to hit Setting–Connection profile–Add–Choose from predefined list–Next–(Select Reliance)–Click on Reliance–Default—OK
    That’s it.

  • aaqsad June 25, 2011, 4:39 pm

    kindly sugggest me profile for TATA DOCMOM

  • Anil June 26, 2011, 8:14 am

    Profile name: Docomo
    Dial number: *99#
    APN: Tata.Docomo.Internet
    Auth: none.

  • Alok kumar Purohit June 26, 2011, 8:11 pm

    i have a problem with my modem, when i log on my pc and open it, it shows no device. when i reinstall it it shows the error code 5.

  • Abhinav June 29, 2011, 11:46 pm

    which one is bettr mmx310g or huawei e156g??? reply soon if u have any idea

  • Anil June 30, 2011, 1:58 pm

    MMX310G is good as I am using it but no idea about other one.

  • Vipin July 4, 2011, 2:20 pm

    Hi , i am Using Micromax MMX 200G last 2 year and i am happy with that because it sport all sim card with high speed….
    Thanks to

  • Anil July 5, 2011, 4:32 pm

    But since some time I am able to use only one SIM Reliance. For all other SIMs it shows “Dial failed”
    Please give me suggestion why it has stopped running with other SIMs?

  • biplab bala July 7, 2011, 12:52 am

    no dial option and call received option this modem?

  • biplab bala July 7, 2011, 1:00 am

    how can i got this settingings

  • TAPAN CHAKRA July 12, 2011, 8:54 am

    i am from does not work in vodafone sim. can you help me?

  • Mukesh July 21, 2011, 8:29 pm

    i am from Kanpur it does not work in vodafone sim. can you help me

  • nilesh July 23, 2011, 1:07 pm

    kindely suggest me profile for reliance gsm

  • Anil July 23, 2011, 4:54 pm

    Hi nilesh, You need not do anything for reliance GSM, just go to setting and choose from predefined list of operators, you will find Reliance there, just select it and make it “Set default” It’s done.
    If no success, revert it, we will solve problem.

  • Anil July 23, 2011, 4:56 pm

    Hi Mukesh, you need to contact to CC of vodafone, they will do the needful. However, what error message you are getting?

  • shawet August 10, 2011, 9:29 pm

    I am using Micromax 310G with tata Docomo 2G, Which is giving Downloading Speed up to 15kb/ps. my other friends are using Same network & getting downloading speed Upto 250kb/ps. please provide a solution

  • Pramod August 12, 2011, 11:34 pm

    I am using this modem from last 2 months. Its a very good product from micromax. Some times I have problem of frequent disconnection and when disconnected the connect function does not work and the modem is not detected. When I remove and reinsert the modem it starts working again. I think its my pc prob as its old now. Also initially when I started using TATA DOCOMO sim with 2g plan of 8 gbfor rs 149, the speed was around 1.2 mbps (+-) but has dropped to 10-20 kbps now. BSNL is giving me a good speed of around 1.2 Mbps max and around 40-60 kbps which is enough for surfing any site(3 gb for 98 rs). Just 1 question if I go for micromax 352G will it work better then this or same performance ?

  • ROBINS September 4, 2011, 9:52 pm


  • Abrar September 21, 2011, 11:12 pm

    i m using vodafone internet but speed is very slow pls let me know the how can get the good speed.

  • Anil September 24, 2011, 7:57 am

    @Robin. You need not search Vodafone settings as they are preloaded with this modem, itself. Just go to setting and choose from predefined list, Vodafone is there, I have seen.

  • Anil September 24, 2011, 7:59 am

    @abrar, I suggest you to please use SIM the tower of which is very near to you for a good speed.

  • abhinav October 14, 2011, 6:39 am

    1) i have MMX352G 3G USB modem the brand is micromax. i want to know can i insert micro sd card in it.
    2)can i call with this modem?

  • Anil October 18, 2011, 5:22 pm

    @abhinav, yes you can insert SD card in it and can transfer data from PC to mobile and viceversa. Secondly you can call with a software skype.

  • Enrique October 28, 2011, 11:39 pm

    My micromax mmx310g modemusing using BSNL 2G Service is not working when i connect it to my pc via usb a red light comes then no light comes my computer is also not reading was working fine before how has this happen…. i had tried in XP SP2,SP3 Windows 7 in different pc but having same problem pls solve my problem and do me a favour…..

    Thanking You!!
    …..In Advance….

  • Nidhi gokhru November 2, 2011, 5:01 pm

    which sim should i use that will give best speed for MMX310G 3G Usb Manger?. n higher rupeez charges will improve speed or not.

  • MANOJ November 3, 2011, 8:53 pm

    i have a “idea sim” and mmx310G data card…what is the setting for idea sim in connection profile??there is no connection with internet…please suggest as soon as possible…..

  • madhav shrotriya January 17, 2012, 4:11 pm

    what is that ‘H’ sign beside the signal strength

  • Sanjay January 23, 2012, 3:37 pm

    Hi Rajat, I am using mmx 310g for the last 3 months. It worked well for the 1st month on my windows 7 home basic. But since I upgraded my windows to ultimate version, I am getting this esses message on connecting this modem to my laptop- NO DEVICE. I went to micromax authorised service centre. They replaced the product with a new one. But again I am getting the same error message. To male it work, I have to uninstall and then again reinstall the manager everytime I plugin the modem. I again went to the service centre with the problem. When the service centre people connected the modem to their pc, it was working well. I am using 64bit version of Windows 7 ultimate. I want to know if you have checked this device with the similar configuration as mine? anybody else experiencing the same problem as mine? Please comment. What shall I do? Shall I revert back to the same old basic version? or is there any alternate solution to this problem. Thanks in advance