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(SOLVED) BSOD on installing zte data card Ac2739.
Boggin:
That's bad news - roll back each driver until it recognises max RAM.
There's one thing you could check and that's Disk Management to see what drive letter the DVD drive is allocated and if the USB has been.
When Vista blue screened did you get a Stop Code ?
I've never used a networking USB but it should be listed in Network adapters and not as an USB device.
rama:
Rolling back the drivers has made no difference. I still think that the memory issue is linked to the very old bios, for which I could find no updates.
I checked the Disk Management and found that the DVD drive has been allocated "G", the same as under "Computer". There is no mention about the Usb modem when it is not plugged in. Once plugged in, it is shown as a cd-rom drive "H", file system is CDFS, and Disk Management says "Healthy (Primary Partition). Under "computer", it is shown as "Cd drive H", but further exploring shows that it is installed as 2 devices, "usb storage FFF1 usb device" and "cd-rom drive" with location "on usb mass storage device". Similarly, under device manager, it is found under "modem" as "usb modem FFF1" and under "DVD / CD-ROM drives" as "cd-rom drive".
Here's the Vista blue screen Stop Code
SYSTEM_THREAD_EXCEPTION_NOT_HANDLED
0x1000007e 0xc0000005 0x9e206c19 0x80760bf8 0x807608f4 cdrom.sys+6c19
Regards,
Rama.
Boggin:
It was probably a driver conflict which caused that error.
It's possible the BIOS has become a bit ragged around the edges and resetting could sort that - you would need to Google either for that operation for your make & model of computer or the service manual.
Sometimes it's just a matter of removing the CMOS battery and other times it's switching jumpers around, but there can also be an auto setting in the BIOS (Set up) to do it.
Shane may be able to make something out of the double entry for the dongle but there may also be some info to be gleaned from the ZTE site under the Support tab including contacting them.
http://wwwen.zte.com.cn/endata/magazine/mobileworld/2012/1/articles/201202/t20120222_287317.html
rama:
I ran Driver Verifier for 48 hours continuously before reinstalling Vista, and it didn't find any error.
Moreover, the same BSOD appeared while trying to install the modem with freshly loaded Vista. It is more likely that the conflict is in Vista itself.
The bios has a 'set to default' option, which I had used before reinstallation, and now also, but it has made no difference.
Problems with this sort of modems are reported mainly in the linux system, like http://www.wikihow.com/Connect-Reliance-Broadband%2B-Zte-Modem-in-Linux-%28Using-Usb_Modeswitch%29 and http://en.wikipedia.org/wiki/Virtual_CD-ROM_switching_utility. I inquired with the local Reliance outlet if anyone has reported this problem, and they said 'No'.
I tried another tactic. Using the Autoruns program I disabled cdrom.sys, and tried to install the modem, but couldn't. With cdrom.sys disabled, Windows didn't try to install drivers when the modem was inserted. Running the modem's installation program also got stuck, because the device was not recognized when inserted as prompted. I can't understand why usb drivers were not installed, or the device was not run with the already installed usb drivers.
Regards,
Rama.
Boggin:
I suppose because no one had reported a similar problem, they didn't have any suggestions either.
See if ZTE have any suggestions by using the Contact Support link in the ZTE site I'd linked.
An IRQ conflict will cause a BSOD but you would have gotten a corresponding Stop Error code if that had been the case in Vista.
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