E5186 Firmware Update Guide

My guide my how to flash firmware on Huawei E5186. Haven't got the time to create the image guide as I don't have a Windows machine with me currently. So you have to refer to my text instruction.

1. Configure the IP of your computer to 192.168.8.100 and the router IP to 192.168.8.1 at your LAN properties. Leave the Subnet Mask at 255.255.255.0
2. Connect your computer to LAN 1 of E5186.
3. Run Multicast Upgrade Tool. Set the Network Card to your Ethernet interface. Tick force upgrade and select your desired firmware.
4. Put E5186 into flashing mode. With the device off, hold the Wi-Fi and WPS button at the right side of the device. Turn on the the device while holding the Wi-Fi and WPS button. Release the Wi-Fi button immediately when you see the Wi-Fi LED flashes. Release the WPS 1 second after you release the Wi-Fi button.
5. Click Start on Multicast Upgrade Tool. It should start sending firmware to the E5186. If it doesn’t, start all over again. Getting into the firmware update mode is tricky.
6. Wait for at least 7 passes. Notice that the counter at the package file send time.
7. Stop Multicast Upgrade Tool and reboot your router.
8. Remember to set your IP back to auto and operate your router normally.
9. Your device should be updated, check the firmware version and webUI version.

No warranty provided and you may brick your device.

Get the tools you need here https://mega.nz/#F!wvo3AAQL!DFTXF84VZCJ6CzuXbBD4Zg

Here's the firmwares I tested
21.310.01.04.418
lmt branded. Best firmware as it is able to display the most amount of information at the interface. You can see the selected band and the CA status.

21.310.01.01.182
Telia branded. My second favourite firmware as it is able to select the band from the webUI itself without the need of a tool.

Most of the firmwares have a telco branded UI and it doesn't matter. It will not lock your device.

fruitie uhlaw

Thanks for the guide! Just worried to brick my router.

Your Antenna Settings need set to [External Antennas 1&2], if you use Auto the speed will slow.


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It's hard to brick the E5186. Just use the 2 firmwares I tested and you should be fine. Wait at least 7 passes before stopping the process.

Or don't fix something not broken.

i'm using tplink mr200. need to move around antenna see if it's improve my connection.

What's your current speed on the MR200 with the stock antenna?

Try conduct a speedtest with the SIM on the router and via the speedtest app on your phone.

actually speed wise is ok, can reach to 40+ mbps sometimes. but i'm more concern stability. connection will be very slow from 8pm onwards everyday. I know it's network congestion issue, just hope antenna can improve this.

I will ask my friend to do for me or don't fix it if ain't broken.

Just got my RM300 B310. Works great but it's Orange branded. It said got newer OTA firmware. Will upgrade causing it to locked?

Bersyukurlah with this speed at this hour.

I am getting consistent 70mbps and higher and I better keep it that waywithout upgrade.

cant believe so fast? zzz

I still can online when I switch to 3g but totally cannot online when I make call. This is not right . The modem should work although at call with 3g. Imagining if I'm playing game then my family members can't make call already.

anyone use huawei e5787?



cannot use 5ghz wifi? sing4g punya description

but e5786 can use dual band wifi

huawei.. y u downgrade spec but still expensive

I think it's due to a country specific thing. The variant they got have the feature disabled. Can try your luck getting it enabled with firmware maybe.

Thanks for the feedback bro..I'll test it out when when I get my simcard.

Thanks blacktubi!
Will test it out tonight as I need get LAN cable from my office today

Anyone using TPLink Tl-Mr6400? Is it good with i150?

It is basically the MR200 with Wireless N instead of Wireless AC.

Pretty decent I would say, not as fast as E5186 but it doesn't matter if you don't have 4G+ at your location.

hi guys,

im using this router by the way:



When i first got the infinite plan, i get good speed, 20-30mbps (4G at 4 to full bar)

but now i am only getting like 5mbps down, up averaging 10-15mbps. complained to Digi but no respond.