EM7455 Flash

[Rma]

Hello,
we found out that, the LTE Modules has a Lenovo brand on it.
All of the LTE Moduls, we cannot flash, because the Driver are not working.
I also tried the Lenovo Driver, but no succes.
Is there any Solution?

[jyijyi]

Did you try linux in virtual machine?

You can also see here

Lenovo EM7455 on Dell Precision 3520 laptop

Hi @neagugeorge , Were you able to access AT command when you got exclamation mark? Any interfaces appear? The issue appears since you’ve used Lenovo EM7455 on Dell laptop. As my opinion, the card is belongs to the OEM cards are obviously meant to be supported by Dell or Lenovo, and not directly by Sierra Wireless. This means that Sierra Wireless will refer you to Dell or Lenovo for support, and they will probably want to know the serial number of your laptop before they let you open any supp…

[Rma]

Hello,

i managed to flash it with Linux, but still after the Flash the Driver still not work with WIndows.

[jyijyi]

Didn’t you just want to upgrade firmware?

Have you tried to rebrand it?

EM7455 Dell rebrand/profiles

Hello all, I’m having some issues with EM7455 4g module. Yes I’m completely new to this module. I have a 5g/4g usb adapter with nano SIM slot. It’s a Dell DW5811e and has an ATT profile. I’ve done all of the driver’s updates. I was trying to flash a different profile like Sprint, T-Mobile etc…NO GO. Simply put: I don’t have a Dell anything as far as PC. All my PCs are custom built. I would like to use different carriers and I would like to use this module and adapter on windows 10, raspberry pi …

[Rma]

Hello,

i followed this guide here, this is for rebrand or?

GitHub - danielewood/sierra-wireless-modems: EM7565/EM7455/MC7455 - Modem...

And we need too flash this Version on it
SWI9X30C_02.30.01.01, but its not working.

[jyijyi]

I never tried to rebrand, you need to test it

Didn’t you already upgrade firmware with linux platform?

[Rma]

I already upgraded the Firmware under Linux, but still under Windows the Driver are not Working.
I even Changed the Code to try other Versions to flash on the LTE Modul, but than still not working under Winodws.

I will try to make some Picture or a Video.

[jyijyi]

Are you trying to use it in a lenovo pc?

Have you tried to rebrand to “Generic Sierra Wireless em7455/mc7455” according to your link?

[Rma]

Hello, for a long time I was using this Code, and it was working. But somehow Sierra changed something and the Code is not working anymore.
Someone has the same Problem and a solution for it?

Still need to flash a alot of Sierra EM7455 Modules.
Thanks

[jyijyi]

what is the problem right now?

[Rma]

When I try to flash the a Module, this error happens.

`Download of zip failed. File size on server is too small, something is wrong, exiting… Attempted download URL was: https://source.sierrawireless.comzip curl info:

[jyijyi]

which FW are you going to update?
https://source.sierrawireless.com/resources/airprime/minicard/74xx/em_mc74xx-approved-fw-packages/#sthash.2PNzT7s6.dpbs

[Rma]

This one

TMO (Generic)SWI9X30C_02.30.01.01 002.045_002

[jyijyi]

how about other exe?
Is it the same?

[Rma]

I dont know how to change it. Because this Version worked fine.

Here is a Picture how it looks like.

normally it should download the file from the homepage.

[jyijyi]

it should not be a zip file
you need to unzip it!

[Rma]

its allready unziped, but still the same problem.

[jyijyi]

then why it still sees the zip file in the error message?

[Rma]

I have no idea, it was working until sierra changed something on their Homepage.

[jyijyi]

Seems you cannot answer why your linux still sees the zip file…
what has been changed then?