Wireless Joint

Posted: **Mon Aug 03, 2020 3:02 pm**

I was getting an EM7455 ready by following the tutorial and issued an "at!rmareset=1" and a at!reset. The modem then came up in Low power mode because of a PRI firmware mismatch. After much trial and error, it seems to be out of low power mode. Now the modem is out of low power mode but I'm still unable to see it on my PC when it's in my USB sled. I can see my other EM7455 modems but not this one. Does anyone have any ideas?

at!image?
TYPE SLOT STATUS LRU FAILURES UNIQUE_ID BUILD_ID
FW 1 GOOD 127 0 0 ?_? 02.33.03.00_?
FW 2 EMPTY 0 0 0
FW 3 EMPTY 0 0 0
FW 4 EMPTY 0 0 0
Max FW images: 4
Active FW image is at slot 255

TYPE SLOT STATUS LRU FAILURES UNIQUE_ID BUILD_ID
Max PRI images: 50

at!impref?
!IMPREF:
preferred image setting does not exist
current fw version: 02.33.03.00
current carrier name:
current config name:
current subpri index: 000

fw version mismatch
carrier name mismatch
config name mismatch

Posted: **Tue Aug 04, 2020 7:32 pm**

Seems like the modem is in the wrong composition mode.
Try this first:

Code: Select all

AT!ENTERCND="A710"
AT!RMARESET=1

Wait a minute, unplug/replug the sled adapter, then send these commands:

Code: Select all

AT!ENTERCND="A710"
AT!IMPREF="GENERIC"
AT!USBCOMP=1,1,109  <QMI mode or AT!USBCOMP=1,1,1009 for MBIM mode>
AT!RESET

Wait a minute, unplug/replug the sled adapter, and see if the pc can recognize the modem.

If the above didn't work, reflash the modem with the latest firmware which usually fixes these issues.
If flashing didn't fix it, it's possible that it's a branded or engineering sample.

Wireless Joint

EM7455 No carrier provisioning files, now what?

EM7455 No carrier provisioning files, now what?

Re: EM7455 No carrier provisioning files, now what?