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Active Level 8
We want 4G+ devices before 5G.

I cannot explain you modulation of frequency, but it's been done since 2G or FM radio.
CA takes it to next level.

Lower frequency bands can penetrate further, so it got long range but very slow internet speed.
Higher bands above 1800 MHz can carry more data i.e more speed. but can only penetrate a few blocks of building.

CA combines a low band & a high band to full both the needs.

Their are a few more technologies involved with 4G Advance like MIMO (multiple input multiple output) or QAM.
but that is no concern to consumers,
we just want 4G+ in 2020 & later and a little bit more stable Network and speed.

image

M series (except M51) don't have support for 4G+.
A50, A50s & A51 only have 2CA support
A7x & above can support only Upto 3CA.
While OnePlus devices support upto 4CA.
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Active Level 8
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Active Level 4
Give me shannondm license key, I will enable 3CA for M21, M30s, M31, and M31s

But Samsung won't provide that.

The thing is all Exynos 9611 devices have hardware support for CA, but Samsung doesn't want to enable it for some reason, it can easily do it via an OTA update.

if you don't believe me, arrange a ShannonDM license key for me, i will give live proof.
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lol.. what do you think shannondm do? just tell me that first.
shannondm is used only to get diagnostic logs and modem information. from that logs we get Ue-capability information which i already did. Ue-Capability information has everything related to utra,eutra information or in normal terms radio frequencies, lte , 3g frequencies.
from that you get what bands interact with each other as mobiles always keep in auto mode by checking which bands interact and locking them gives you CA.
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Active Level 4
CA was not enabled for A50 at first, but Samsung later enabled it in A50 by an OTA update.
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my friend has A50 still using it he purchased just after released and out of the box got 4g+ with airtel.
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@ ImSRV, CA was not enabled for A50 at first, you can search YouTube or web if you don't believe me, your friend must have bought A50 after some days of launch.
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acha.. but he purchase just 1month after release.. so this update within 1 month🤔🤔
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Active Level 4
M51 also doesn't support 4G+
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