Celcom 3G is now completely gone/non existent in my area.
I am sure that the network is still there at yesterday.
It can be deemed problematic as the device I am using for that SIM (unifi mobile) is not VoLTE ready, meaning 2G EDGE for calls and in areas with poor signal. Well it is not my main SIM so nevermind.
Location : Johor Bahru

How to know already turn off 3G? I cannot see the different

Only need calls and sms. Necessary to activate volte or dont need at all?

The easiest way to know 3G has been "re-farmed" or still running for SIM1 (or SIM2...)

Ahh thanks, now I can confirm my area no more 3G for Celcom 

And how's the performance of the "re-farmed" LTE ...?

just now around 6:30pm to 8:30pm, unifi mobile has internet issue, VoLTE turn off by itself, internet stuck at EDGE, and internet isnt working at all, not just slow, it's not coverage issue, or single tower issue, multiple tower around town is affected.

paid 2G/3G Quota included, internet still isnt working at all while EDGE, tried at multiple location with different tower, even multiple smartphone. and airplane mode toggle of coz, even restarted smartphone.

this error may have something to do with the other dual sim is celcom, and unifi mobile is using celcom for 3G connectivity, but this error never happen before until recently, tried to turn off/toggle 4G at both sim seem to be able to fix it almost instantly.

Well I work and stay in middle of town so coverage has never been an issue. Speed is ok, I guess? Getting around 50+ Mbps just now. Although a whole lot of my friends and family members are having issues with calls, since last week - calls didnt go out, dropped, having to call twice before getting through etc etc

I face similar problem last week when I travelled to Kelantan. Using Celcom prepaid and postpaid. Very difficult to make / receive a call. Had to use WhatsApp / Telegram call instead.

Is your volte enabled ?

Looks like Maxis officially turn off 3G in Klang area and some part of area I guess no 3G whenever 4G signal is too low it’s switch back to 2G kinda irritates during MySejahtera check in

I tried to lock 3G in iPhone but it’s stay in 2G
As of now only Digi 3G has been staying for now

If you encounter issue checking in using MySejahtera due to Internet related issues, you can temporary turn off mobile data or turn on Airplane/Flight mode on your phone first, then only you launch the MySejahtera app to check in.

FYI, Internet connection is optional if you just want to check-in usng MySejahtera app.