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danmiddle2 is offline danmiddle2
2010-09-24 , 09:14
Posts: 24 | Thanked: 8 times | Joined on Oct 2007
#11
Originally Posted by nilchak View Post
This is normal behaviour I believe.
While there is no data transfer the signal will show 3G and while data transfer it will switch to 3.5G.

This does mean that you are getting 3.5G signal all along. You cant just force it to show 3.5G always if there is no transfer going along. Relax the 3G-3.5G switching denotes 3.5G reception.

Only in case of 3G-2.5G switching denotes bad 3G reception.
But it's not, because it can't maintain the connection when transferring data.
 
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deadmalc is offline deadmalc
2010-09-24 , 09:25
Posts: 415 | Thanked: 182 times | Joined on Nov 2007 @ Leeds UK
#12
as far as i am aware 3.5g control is automagical, and cannot be forced.
there have been posts about this before i think.
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RFS-81 is offline RFS-81
2010-09-24 , 17:42
Posts: 207 | Thanked: 154 times | Joined on Nov 2009
#13
Yes, that has been established already :-)

Now the question is, why does it drop from 3.5 to 3g even when it shouldn't. And "reception problem" is the best guess so far. The second best (in my books) is it's a network problem.
 
shadowjk is offline shadowjk
2010-09-24 , 18:52
Posts: 1,258 | Thanked: 672 times | Joined on Mar 2009
#14
It's generally decided by the operator.. Some guys here tested the threshold for 3g-3.5g switchover, time taken for switch, and the duration on 3.5g after traffic stops, and the results were wildly different for different operators, using the same device.

You could probably do ping -s 100 8.8.8.8
and change 100 upwards until 3.5g stays on. If you have crap signal (less than 5 or 6 bars, even momentarily) it might just stay/switch on 3g anyway.
 
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