I feel sorry for others, as I just 2 days ago advised in other thread to force 2100MHz. If you have posted it earlier, I would be more careful.
All my searches result in the same list of commands, so they were probably all copied from the same source.
Logic would suggest that there may be a UMTS 900 option on at+zbandi=5 or at+zbandi=6 or so. I haven't yet come across any other reports of at+zbandi=0 not working though.Code:Set Band Status +ZBANDI at+zbandi=0 • Automatic (Auto) - Default at+zbandi=1 • UMTS 850 + GSM 900/1800 at+zbandi=2 • UMTS 2100 + GSM 900/1800 (Europe) at+zbandi=3 • UMTS 850/2100 + GSM 900/1800 at+zbandi=4 • UMTS 850/1900 + GSM 850/1900
Last edited by ginggs; 26-01-2012 at 01:15 PM.
I'm the user that sajunky mentioned a couple of posts back.
Would you guys like me to try and set it back to automatic tonight to see if works?
Cool, will try it tonight.
Setting it to 2100MHz made me happy ginggs. You have no idea how much. After years of first struggling with Telkom and then Cell C having the same congestion problem, I could suddenly play an MMO. It's just awesome.
According to the site at+zbandi=0 is the command to reset the bands to automatic. If this is what Graham uses in MDMA then it looks as if the MF668 has a bug in it's firmware.
Hindsight is 20/20 vision. Looking back on things I should have found the AT commands in November when I had the problem and then used something like PuTTY to try and reset the bands before I took the modem back to CellC. It's one thing playing with a modem that doesn't work properly as there is very little to lose but I'm too chicken to experiment with my present modem in case I wind up with a second casualty.
Hmm how I would I know if it's failing?
Automatic - Gets set, works
UMTS 850 - GSM 900/1800 -> Searching for network...
UMTS 2100 + GSM 900/1800 (Europe) -> works
UMTS 850/2100 + GSM 900/1800 -> works
UMTS 850/1900 + GSM 850/1900 -> Searching for network...
I don't get any error messages. I can't seem to connect to the slow tower here anymore though. Connects to Cell ID 11025 every time. Am I doing this right?
There is, of course, the possibility that CellC replaced my modem because it was, in fact, faulty and not perhaps because they didn't have the know-how to reset it. The automatic band setting on Solitude's modem may well have worked and he is still connecting to a 2100MHz signal because that is the best available. Perhaps the only way to be sure that the automatic setting has been effective is to try it in an area where it is known that a 3G connection is usually at 900MHz.
I think you may be right MervynB. Mine always used to automatically connect to the 900MHz tower where now it doesn't at all anymore.