I am using Maxis Surfmore50 line. How can I know if I can use LTE?

No LTE nevermind, 3G signal also weak    Now it is killing my battery life >.<

I on 6.1.2 with lte enable but so many places no lte, taman gembira, kuchai lama, oug and Shah Alam klang Usj also no. Is it my nano sim or iOS problem?

for those who still in in ios 6.0.2 or below 6.1.2. this is my method of updating the carrier list. tis method is only to make sure that itunes detect your iphone is 6.1.3 and after that itunes will automatic check the carrier setting. the method are:

1) use ifunbox and connect your iphone and go to.
Raw system file>Device>system>coreservices>systemversion.plist.
2)copy the systemversion.plist to your pc and open the file. and you should see the "<string>6.0.2</string>" in the plist. after that change into 6.1.2 or 6.1.3 and after that safe the file.
3) copy back into your iphone in the
Raw system file>Device>system>coreservices> and replace with the original systemversion.plist.
4)reboot your phone.
5) after that you go into system>general>about. check the system it is either 6.1.3 or not.
6) connect your iphone into itunes and itunes will detect and ask you to update the carrier setting.
7) update the carrier setting.
8) you should see the carrier setting is 14.1 in the general.
9) do the same method to change back the systemverion.plist to change into original 6.0.2. and reboot the phone.

your phone will detect the LTE.

p/s: some user may encounter automatic update when they check the phone is step 5.

goog luck.
Added:

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Using ifunbox to take the file out from iphone.

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ios 6.0.2 with LTE.
this method works on jailbroken iphone. as for none jailbroken iphone. you can always on latest firmware and should be no problem in updating the iphone carrier setting. 

Celcom has been given green light from MCMC to use 1800Mhz spectrum. So we'll see another telco will provide iPhone 5 LTE in the market soon..     

If you have a jailbroken iPhone and all you want to do is brag to your friends you have LTE go Cydia and download the LTE logo first and take screenshots lol

Any reliable apps to track quota? I lazy to keep typing *136*9*1#

can this track the up down of the current internet speed? no need to track quota thou

Yes, I am looking forward to Celcom launch LTE too.

That is LTE Modem, not for smart phone just yet.

how come ur NCsetting got LTE. Mine still 3g.

Nvm bro..there is option in NCsettings to change from 3g or lte..