QUOTE(Berus Wine @ May 1 2020, 10:38 PM)
From my understanding (correct me if im wrong im still new to this)
B618s-22d - There are 2 version, one is locked to only celcom sim (cheaper), and there's modded & unlocked version which can be used by all sim (slightly expensive).
B618s-65d - no reported lock unit. Can be used by all sim card telco. But most of the firmware for this unit is V81 which means future modding is not possible. Very expensive. Good if you're using i150 plan.
It's all boil down to your own preference. I decided to go with the 65d since i dont really need the modding part & it support Volte out of the box.
It also come with official Huawei warranty 1 year.
FYI,
65D can support Band 5 and Band 40, which is able to use for Unifi Air so more tower in malaysia is supported.
As of VoLTE,
I read somewhere they said they u make phone call, 4G will automatic reconnect to 3G. If you set your modem to always connect to 4G, then your VoLTE will automatically shut.
Correct me if I’m wrong.
Also, 65D not able to update firmware, may brick/lock-sim. 22D nvm since it is already lock-sim, and can lock band without the help of 3rd party software.