So I got this free sim card with 40GB free per month from YES https://www.yes.my/learn . My Mi A2 is under supported device, and when I check the coverage here https://www.yes.my/support/coverage it says 'This area has LTE & Broadband coverage'. So I put the sim card into my Mi A2 and it can detect Yes's network, but the mobile data doesn't work. Any ideas?

have you checked your APN? YES4G

Thanks for the reply. My APN is yes Internet, as that was the default. So need to change?

This post has been edited by imin: Apr 12 2020, 11:32 PM

you have to find out whether your phone support yes lte band first.

yes, please change

I thought their APN is yesnet?

Try enable volte.

just changed the apn to YES4G but still doesn't work


is volte the "Enhanced 4G LTE Mode?". If yes, already enabled and disabled. Still cannot.

maybe your hp not support yes band in your area, b20, b38 or b40..which is not support on your mobile phone.

Try playing with the options in *#*#4636#*#*

Sometime it help in my case. And for the info, one of my phone can't use their SIM because of custom rom even it is listed as supported phone.

err what's that? But my hp (xiaomi mi a2) is listed under supported device at Yes's website

MI 6X
Network Technology GSM / CDMA / HSPA / LTE
LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) - China


i scare YES on your location is running 4G channel B20 only... your area mamybe dont dont b38 n b40...so u wont have line...

and your mobile phone not support b20. only b38 n b40 4G YES band.

This post has been edited by alexchew_2020: Apr 12 2020, 11:52 PM

wah so complicated one...

thanks for your help though

Tried Yes line last year, it was really bad. They promote so much on their 4G, but so limited area got 4G connection lel

that is YES 4G channal band. b20, b38 & b40. see the area which band is running. hardly to have a band in the area. mostly is running b20.

or try others phone u had.

how to know my area have which band running?

call YES and check, if hp detected got 4G line, install apps can see which band u connected to. if no line at all probably hardware not suppport/ no line there.

depends on where you live and what phone you have.

for me it's quite good

ooh ok thanks

living in KL wo... and using samsung s10 :/

maybe just my luck

where you stay though?

in melaka
never have a moment where I don't get any signals

but again it's depends mostly if you happened to be near a school most of the time.