Huawei B310 unlocking is totally different than normal devices, as you have to solder the cables, then you will be able to process further. In similar ways Huawei B310s-22 (Optimus Portugal) unlocking is possible. If your device does not ask for unlock code or want to use universal firmware, then also you have solder the cables to flash the firmware of Huawei B310. You can download B310s-518 firmware 21.300.01.00.00B310s-927 update 21.110.99.02.00 and other from various links.

Recently, various people reported that Huawei B310 LTE router does not allow to change the mode of networks like 2G, 3G, 4G etc. In this post, we will see, how to enable multimode. The multimode can only be enabled, once you change the WebUI with the universal.

Huawei B310 - rollback software

How to change the WebUI of Huawei B310 Router?

  1. Solder the cables as mentioned at here.

2. Install Huawei Mobile Partner in PC.

3. Reset and connect B310 with USB cable to PC.

4. Once started, detect the device under DC unlocker.

5. When you will get the full details of your modem, then at the end of the result paste the following:

at^sfm=1

6. Press Enter from the keyboard.

Note: It will put modem / router in factory mode.

7. Now issue the following command:

AT^reset

Note: It will reset the device.

Note: You can also issue the command AT^GODLOAD to put the device in download mode.

8. Now run the WebUI update.

Note: All the WebUI of the E5573, E5577, E3372 etc are supported.

9. Wait till finish.

Now, you have successfully changed the WebUI.

53 COMMENTS

  1. hi
    ok…i tried to change WebUI but the device now stuck on power led
    how to solve this problem

    Found modem : B310s-927
    Model : Huawei B310
    Firmware : 21.311.03.01.1228
    Hardware ver. : WL1B310TM
    Dashboard version : 00.00.00.000.00
    Web UI version : WEBUI_17.100.09.00.03_CPE

  2. Good evening Kamlesh. I have been able to unlock my B310s-927 locked to Spectranet Nigeria, BUT there is no option for creating a New APN profile. Can I downgrade to firmware 21.180.xxxx through local update option available on the WEB UI so as to have access to Create New APN profile since version 21.300.xxxx upward is giving much headache lately

  3. I update the webui successfully for B310as-852, however, I cannot login the webui using “admin” as username and password. so what is the username and password after update?can somebody kindly tell me? Thanks

  4. I updated,but cannot login

    saying username or password incorrect. What is the username and password after update?

  5. Hi Everyone,

    So i got my hands on to the latest Airtel Locked B310s-927 Bought in the month of June 2016. See below
    Some confidential details hidden

    Found modem : B310s-927
    Model : Huawei B310
    IMEI : 86XXXXXXXXXXXXX
    Serial NR. : XXXXXXXXXXXXXXXX (
    Firmware : 21.311.03.00.284
    Compile date / time : Jul 18 2015 08:54:14
    Hardware ver. : WL1B310TM
    Dashboard version : 00.00.00.000.00
    Web UI version : WEBUI_17.100.09.00.03_CPE
    SIM Lock status : Locked (Card Lock)
    Wrong codes entered : 0 (unlock attempts left : 10)

    I followed the exact same guide to unlock as mentioned here https://routerunlock.com/unlock-huawei-b310s-927-cpe-cat-4-lte-router/ until step 7.

    After Step 7
    1, Generated the unlock code
    2, In DC Unlocker i ran the command as AT^CARDLOCK=”NCK LOCK CODE”
    3, Received the input as OK. Voila !!!! my Vodafone Sim started working in here.
    4, Now i get the problem that i was unable to change the APN so i needed a universal WEB UiI
    5, Downloaded the Universal Web UI from https://routerunlock.com/?wpfb_dl=1697
    6, Right Clicked and Ran the “Update_WEBUI_17.100.12.00.03_MRE5.exe” as administrator it asked for DATA LOCK Code
    7, Went back to DC Unlocker and ran the command as AT^NVRDEX=50502,0,128
    8, Received the HEX Code and generated the OEM / Data Lock Code
    9, Entered the DataLock Code there in WebUI Set and HURRAY !!!! You have an unlocked B310s-927 with universal latest web Ui

    Honestly, The point where i failed was to downgrade the Firmware (Although i did not need that still for testing reasons).

    USB Was soldered and plugged in > LAN CABLE Plugged> GODLOAD mode was on > hardcoded the ip in network settings > Multicast tool kept running for 30 mins.
    I seek detailed help of someone in downgrading / updating the firmware for B310 or B315.

    • I have the exact router as you (Spectranet). I did the webui update successfully. Now I try to enter settings on router, but it keeps saying username and password incorrect. I have reset router with pin, same thing.

            • thanks for the help so far.. ..the passwords weren’t successful.

              as for WebUIs, I’ve used

              E3372H-WEB-UI-HUAWEI-17.100.11.00.03,

              Update_WEBUI_17.100.12.00.03_MRE5.exe

              and

              E5573s_Update_WEBUI_17.100.08.01.1279_Iran.exe (which refused to complete)

              Any suggestions as to another WEBUI to try?

              thanks.

                • thanks for the prompt reply as always. I downloaded and used

                  WebUI_E3272s-153 13.100.04.04.1202

                  WebUi Huawei_E3272s-210_13.100.04.01.158

                  WebUI_13.100.03.02.03_Universal

                  but they all gave me,
                  “ERROR CODE 16: Failed to switch the download mode”.

                  I’m thinking if I can get another Huawei_E5573s_Update_WEBUI_17.100.12.00.03_MRE5.exe (or a higher version) maybe it might work. As it’s the only one that has installed successfully.

                  your advice would be appreciated as always.

                  thanks.

  6. Good morning

    I was having difficulty using other sim cards in my Huawei E303s-2 H-link modem so I tried to unlock the modem. I have seen the modem is unlocked and after a search on the internet I have found out that modems may not be locked to a specific provider where I live, but it is in actual fact the software that is written so that it must not recognise other sim cards.

    How can I change the Webui?

    I would greatly appreciate your help

    Thank you

    manufacturer – Huawei modems
    Interface : 192.168.1.1
    Found modem : E303s-2
    Model : Huawei E303s-2
    IMEI : xxxxxxxxxxxxxxxxx
    Serial NR. : xxxxxxxxxxxxxxxx
    Firmware : 22.157.46.00.00
    Hardware ver. : CH2E303SM
    Web UI version : 11.010.12.00.372
    SIM Lock status : unlocked
    Wrong codes entered : 0 (unlock attempts left : 10)

  7. Hi ,
    My Router is Hauwei B310s-927 … i tried every thing u said guys , but my router is stuck on led Power and it wont change , i have da dash board value and every thing , i tried to use even da E5573 webui with no use
    Firmware : 21.300.01.00.1304
    Hardware ver. : WL1B310TM
    Dashboard version : WEBUI_17.100.08.01.983
    Web UI version : WEBUI_17.100.09.00.03_CPE

      • how i can change the firmware , if my hauwei router stuck on power led and the firmware update program can not read it … it’s just on power led as working and nothing else , my PC reads it as working , even i got the dash board version … any program or steps i should do to make even be back to work again … Help please

  8. Please, my device B310s-927 depends on Power, only power lamp is lighted, is it a solution? , Tried all the solutions by clicking on pressing a button power and wps , But to no avail !!
    is it a solution please ?

    • ok the solutionis …
      1- When the B310s is powered on, use a sharply pointed object to press and hold Reset button. now press WPS button and Power button…***the three buttons in the same time***
      3- the B310s turn off then turn on again . when you see Power indicator and Network mode indicator (Red). release all the three buttons…
      Now wait until the process is complete. ……about two minutes

      • I Tried To Do That And Nothing Happened my Hauwei B310s-927 is still stuck to power led only and refusing to change … i can not up date firmware because multi upgrade tool can not read my router … because the updating process failed in 1st place … so please help

      • i appreciate if you have more or any other solutions , coz i have tried that and no response still stuck on power led only & it’s read as network card & i can see the ports and be read by Dc-Unlocer and i have dash board , WBUIE …. etc , but the multi upgrade can not update it coz IP address is 0.0.0.0 ???!!!!!

  9. My Hauwei B310s-927 is now just on Power Led and ,Firmware Updating To universal original one Failed , what i can do so i can make it work again and how i can make it be unlocked ….. Help Please

  10. I soldered the cable and I’m struck in the second step.when I downloaded mobile partner utps the give an error saying that the port is not there .when I go to device manager and check it out it say unknown device

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