The device is not working properly code 31 – 3G Modem
By calejo on April 23rd, 2011
0 responses
Problem:
A while I’ve been having this problem about not getting Vodafone 3G Modem drivers working on Windows 7 x64, and everytime I installed them, I got on the device the following message;
“Code 31 – The device is not working properly”
Actually, this was kinda boring cause there wasn’t any support by Vodafone which is kinda disappointing and that led me to buy a new equipment - ZTE 3565Z which had the same problem.
http://www.vodafone.pt/main/Particulares/BandaLargaMovel/Suporte/
Resolution:
1. Go to start menu
2. Run ‘regedit’
3. Open this key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96D-E325-11CE-BFC1-08002BE10318}
4. In this key, find the “Installer32” string.
5. If the Microsoft Registration Key is missing, the key has to be added manually.
6. Create a “string” value named “Installer32”, and set it to “mdminst.dll,ClassInstall32”
5. Save the ‘regedit’
6. Open the device manage
7. Find the modem with problem; update the modem driver again by reinstalling VMC 9.4.4
