# MC7455 firmware update problem

**URL:** <https://forum.sierrawireless.com/t/mc7455-firmware-update-problem/9579>\
**Category:** MC/EM Series\
**Created:** [October 30, 2017, 6:36pm UTC](https://forum.sierrawireless.com/t/mc7455-firmware-update-problem/9579 "2017-10-30T18:36:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![karppa65](https://avatars.discourse-cdn.com/v4/letter/k/57b2e6/32.png) [@karppa65](https://forum.sierrawireless.com/u/karppa65)\
**Post date:** [October 30, 2017, 6:36pm UTC](https://forum.sierrawireless.com/t/mc7455-firmware-update-problem/9579/1 "2017-10-30T18:36:43Z")

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Hi!

What is the correct way to update the MC7455 firmware? I’m using the the MC DevKit, without any SIM, as I’m only evaluating the GNSS receiver.  
The firmware I try to update to is SWI9X30C\_02.24.05.06\_Generic\_002.026\_000.  
I’ve tried this:

at!entercnd=“A710”  
at!priid=“9904609”,“002.026”, “GENERIC”  
at!image=0  
at!reset

Then on other terminal:  
./fwdldhostx86\_64 -s …/…/…/ -p …/…/…/…/firmware/Generic/ -d 9x30

Firmware download seems to be successful. But when I list the available images:

at!image?  
TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID  
FW 1 EMPTY 0 0 0  
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

What am I missing? Is there a “for dummies”-guide somewhere?

Br, Karppa

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<div class="post-metadata">

**Author:** ![karppa65](https://avatars.discourse-cdn.com/v4/letter/k/57b2e6/32.png) [@karppa65](https://forum.sierrawireless.com/u/karppa65)\
**Post date:** [October 31, 2017, 8:05am UTC](https://forum.sierrawireless.com/t/mc7455-firmware-update-problem/9579/2 "2017-10-31T08:05:39Z")

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Hi,

I managed to update the firmware from Windows, but not from Linux.

Br, Karppa

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**Author:** ![anishjp](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/anishjp/32/4594_2.png) [@anishjp](https://forum.sierrawireless.com/u/anishjp)\
**Post date:** [June 5, 2021, 10:46am UTC](https://forum.sierrawireless.com/t/mc7455-firmware-update-problem/9579/3 "2021-06-05T10:46:01Z")

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@karppa65  
Sorry for hijacking your old post. Do you still remember how did you manage to update the firmware in windows?