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by Prvt.N00b
Wed Dec 02, 2020 12:58 pm
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Re: No Carrier Aggregation - Sierra Wireless EM7565


Your Note 8 has a category 16 4x4 MIMO 4xCA 256QAM modem in it, and the phones quad antennas are amped and tuned. The EM7565 is 2x2 MIMO with 3xCA and is using cheap spike antennas. Your comparing very different hardware.

According to your signal stats you have lots of noise on your signal ...
by Prvt.N00b
Sun Dec 06, 2020 8:55 pm
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Re: No Carrier Aggregation - Sierra Wireless EM7565


Thanks for the answers :-) Actually I came to the same conclusion, the tower simply does not support B2,B4 aggregation although it has no problem with using them individually.
At some point I noticed that when the band lock is not set then my MC7455 can have CA enabled for B7 (20Mhz)+B7(20Mhz ...
by Prvt.N00b
Mon Nov 23, 2020 10:42 am
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Re: EM7565 - CA_2A-4A-28A (B2+B4+B28)

Didneywhorl wrote: Fri Nov 20, 2020 2:04 pm Nope, but it can do 2 and 28

or 2, 4, and 29 but thats no help i guess.

Here is the spec for the 7565 attached
Thanks.
by Prvt.N00b
Tue Dec 29, 2020 7:24 pm
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Re: How to switch firmware on EM7565

this is how I did it:

1. Command: AT!ENTERCND="A710"

2. here I want to which image is the modem using: Command: AT!IMPREF?
AT!IMPREF?
!IMPREF:
preferred fw version: 01.08.04.00
preferred carrier name: SIERRA
preferred config name: SIERRA_002.001_000
current fw version: 01.08.04.00
current ...
by Prvt.N00b
Fri Jan 22, 2021 6:18 pm
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Re: No Carrier Aggregation - Sierra Wireless EM7565

I fixed this problem by doing a Modem Firmware update using the sierra wireless support page.