I was hoping to get some help with our Dell 7470 laptops with EM7455 air cards. We are having a few issues with this setup.
First after waking the machine up from sleep, or sometimes after a reboot, the skylight software will get stuck in a loop of “Mobile Broadband device not detected” and “Device detected”. If you continuously put the computer to sleep and wake it, or just keep restarting it, eventually it fixes itself and can be used again. During this time you will see the device appearing and disappearing in the device manager. Other times you will just see the device listed under ports as “DW5811e Snapdragon™ X7 LTE QDLoader Port (COM7)”.
To give a little more background information, we use Win 7 Enterprise. We configure 1 machine with all of our software and then use ghost to drop that image onto our other machines. We have 100 of this model machine and all of them experience this issue when we drop our image. I was wondering if maybe there was a setting that needed to be removed or setup before grabbing the image or anything anyone else can think of.
We have grabbed our image without the skylight software and air card drivers installed and with it installed. This does not change anything. It is broken on both. Also these are setup and imaged the same as our older 7440 / 7450 Dell laptops that have the EM7355/DW5808E air cards and we have never had a problem with those machines. I have tried all variations of drivers and skylight versions available from Dells website as well as requesting assistance from Dell, which has not resulted in anything that works.
These machines are setup with both Verizon and ATT service. The issue is present on both.
Please let me know what other information may be useful to you.