Can you check which band it use? My area also no coverage even though im using unifi mobile with good speed.


Btw, if I subscribe to unifi air (sim only), can I take the router(with contract) later? I want to try it with my phone first to check the speed. Cant risk to take the router first because I heard to cancel contract need to pay a lot

Since without device comes with no contract, simply test and make sure you satisfy, then terminate and subscribe plan with device.

Since sim only is without contract, u can terminate it and subscribe again for the device bundle plan. Hahaha

It used b40 n b5..
When b5, speed slow abit..

Someone said, they try to put the sim in phone but cant use it as data..what u can do, buy sim and a suported dongle..if it good to go..the u terminate and sub plan with device..

b38 can also, there is ppl claimed that by connect through b38, 1 can get the most speed out of it



This post has been edited by feimeng: Sep 25 2019, 07:05 PM

I try manual tu 38 but not avail..
Maybe my place only got 40 and 5?

the b618s-65d doesn't support b38, but the 1 celcom provided b618-22d supports, tis the 1 used

Currently use modem Huawei B315s-607: 4G Band 1/3/7/8/28/40

So will get one sim to replace DiGi Infinite.

Which modem router is good to buy for unifi air other than huawei b168?

I guess any other modems that support band locking?
And I've never heard of the B168 before. What are the specs?

since someone mentioned bout the tnc for unifi air... or they just being lazy n copy n paste?


Attached thumbnail(s)

Doubt anyone could hit any decent usage since their coverage and speeds are so limited

So stupid move by unifi if they put good speed on band 38 but suggest to use B618 65d...

Hi guys/ gals,
Does anyone uses Huawei E5186 modem for UNIFI AIR? I plug it in and it is not working
But when I plug it is in Huawei E5377 modem , it is working, not sure why?

Any idea? Thanks

You check on the supported 4G frequency bands for both huawei modems, on the packaging box or user manual, see if it supports any of the bands used by TM Unifi mobile below:

LTE FDD Band 5 (850MHz)
LTE TDD Band 38 (2600MHz) or 40 (2300MHz)

Then you know which frequency bands that unifi mobile uses in your area, as well as knowing your huawei modems supports at which frequency bands.

Unifi Mobile = Unifi Air

or you can just think the other way round, if unifi air introduced with something that supports band 38, like the celcom b618-22d, u won't get good speed on this band too, b'coz it's being congested, conclusion is it's not that TM put good speed on b38, but just b5 and b40 is being congested, same thing will happen the other way round. We should feel fortunate instead there's still a band available that is not too occupied

True also.
Don't forget, 65d also supports b28 (700MHz). TM might interested in getting some of this spectrum after analogue switch off has completed and spectrum auction begins. If that really happens, Unifi air users that using Huawei b618-65d modem can get to enjoy service from this 700MHz band right after its base station is up and running, on top with 850MHz and others.

if u can handle risk of getting stroke from the cs
and hassle and termination penalty and shit coverage

then go for it

but band 38 & 40 have more bandwidth. unifi air design for fixed wireless terminal at home. limited coverage can solve with external antenna. TM no stranger with external antenna start from TM-Will, TM-CDMA, TM-EVDO, External antenna for unifi air should't be a problem.

any suggestions for antenna?