From what I've read, it's possible to to disable the high speed connection and leave only EDGE and other slow connection by change network mode to GSM only. However when I tried that on mine, I lost all connections altogether include voice call, and left with "unregistered sim, emergency call only". My carrier is CDMA, so not sure if that has anything with it.
What am I missing here?
Hspa 3g only on gsm system.
For cdma you have 1x and evdo..don't know if you can disable evdo or not. Please see setting/wireless & networks
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With Use "2G Only" checked I get NO data. I've been googling and testing for 4 hours.
When I uncheck "2G Only" it switches to 3g and I get data. If the 3g signal is bad it will switch to E and I will get data and if I move near the window and the signal gets better it will switch back to H. So I know Edge works fine and is in this area.
At the same location, if I check 2G Only, I get no data. Voice is fine.
I went into *#*#4636 Info and when GSM Only is selected, I press Menu, and it shows Enable Data connection but when I select it, it does nothing. The menu disappears but it acts like nothing happened.
When I boot Windows Mobile 6.5 Edge and 3G work fine.
I have to get 2G only working because the 3g is random in my condo.
FYI, I can't get MMS sending to work either. I tried port 8080, I tried with username and without, with and without passwords, with APN type and without too.
I've had the same problem on builds that have a 3g only choice (wcdma). When selecting, I get no signal, otherwise it was fine. I wonder what that is messing with.
nrfitchett4 said:
I've had the same problem on builds that have a 3g only choice (wcdma). When selecting, I get no signal, otherwise it was fine. I wonder what that is messing with.
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I have the same issue too
What network are you on? TMobile I assume since you talk about Edge and GSM.
Edge is 2.75G in essence. TMobile does not have a distinct 2G signal, at least not that I am aware of. It goes G (no data), E (Edge 2.75G), 3G, and H.
So by choosing 2G only, you eliminate even E...therefore no Data.
J
I'm on AT&T with a Telstra phone that has 850Mhz data.
If 2.75G is Edge and HAS data, how do I select it from the *#*#4636 or from some other menu?
On Windows Mobile 6.5, when I select GSM only I still get EDGE for data. So I can have a reliable voice call and when I'm not talking I can have Edge data.
So using the secret menu, I was trying different methods to see what signal strengths I was getting at my place, same spot. Interesting enough, the signal strength bars are different when using CDMA auto prl (4-bars) and EvDo only (2-bars) mode, even though I still see the 3g icon. Also, it seems the 1x radio is always on in every mode except EvDo only, plus I tried calling using all 5 modes.
Thus far, (1-yes, 0-no) I can make a call in mode:
CDMA auto PRL - 1
CDMA only - 1
EvDo only - 0
CDMA + LTE/EvDo - 1
LTE only - 1
so my question is, why can't I (and is anyone able to) make calls over EvDo only mode? When I place one, it hangs for a sec, and ends automatically saying "Call was lost". I was hoping to get better call quality (even if I can't have 4g speed), cuz right now calls sometimes sound muffled (but clear enough to understand), compared to when I had my nexus one on t-mo. (I tried eHRPD and EvDo-rev.a modes to no avail)
PS I know (atleast I read somewhere) that the T-Bolt cannot support calls over LTE itself, or VoLTE as it's called (unless if that's changed or I am wrong.)
Any thoughts? your experiences? I just want to get ppl's thoughts on this.
So... I guess no answers then?
Well, EvDO-only would not permit any voice calls because you've told the radio to only operate with a data signal. EvDO, or "Evolution-Data Optimized", is the 3G data component of CDMA wireless networks, so without a preferred network mode that includes CDMA you won't have any voice service.
when i had my phone on evdo only (stupidly thinking it was 1x) i couldn't make or receive any calls
evdo handles data, 1x handles calls/sms
squeakyl said:
when i had my phone on evdo only (stupidly thinking it was 1x) i couldn't make or receive any calls
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Right. CDMA = 1x data and voice EVDO = data only. If you force the phone into a data only mode, voice will not function.
Does anybody know how to turn off HSDPA but leave 3G enabled in this device? I used to have a samsung galaxy mini with this option of selection band and saves battery sooooo far
go to
settings>wireless&networksettings>Mobile Networks
depending on your ROM you will get Use Only 2G networks and Use Only 3G networks
kashem58 said:
go to
settings>wireless&networksettings>Mobile Networks
depending on your ROM you will get Use Only 2G networks and Use Only 3G networks
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Click to collapse
thanks but this isn't exactly what I'm looking for. Is an option that allows you to enable only UMTS and not HSDPA. You could use 3G but without the "H" icon, which means less speed, but more battery life because the device is not switching between UMTS and HSDPA constantly. I know that there's an option to switch only to GPRS, but that's not what I mean... thanks anyway!
Hmmm. When I enable '2g only' I can still use EDGE networks and so forth, it only seems to disable HSDPA - which is how I want it. What do you get when you disable 2g then?
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He's talking about UTMS which is one step ahead of EDGE and one step short of HSDPA. I don't believe that there is any way to disable HSDPA only, however like the post above says, you can disable UTMS & HSDPA under settings>wireless and networks>mobile networks>Use 2g networks only.
[Q] Unselect "Use only 2g networks" causes phone to loss connection to network
Since Monday my Galaxy S2 can't use 3g networks anymore.
It only connects to my carrier if "Use only 2g networks" option is selected, otherwise it won't give me the possibility to make calls.
Anyone has a clue about what should be ruining the radio communication?
Is there a way to try to "reset" the carrier configs to the default?
I mean, I hadn't change a thing but on Monday my carrier had some signal issues in my area and I think this could be the reason of my phone's confusion.
More than likely carrier issues.
Please contact your provider to see when the work / fault will be completed.
Please update me with your progress xd, who is the carrier by the way?
fkofilee,
But if the phone can't connect to 3g, it should still connect to 2g networks, right?
I mean, unchecking the option should not make the phone lose signal, because 3g would be only another way to reach the carrier.
I'll try with a SIM card from another carrier to double check.
The carrier ir OI, I'm at Campinas-São Paulo-Brasil.
Unchecking the option will disconnect the phone signal very briefly.
Please ask your carrier tech team to give you carrier APNs info.
That way you can be sure the info your getting is correct.
Also check your APN settings...
All of sudden everything is back to normality.
Surely it was carrier's fault.
Thanks for the answers!
I have a one converted to GPE and where I live I get great LTE coverage. However at work its weak and my one is constantly switching between LTE and hspa.
How would I set my phone to only connect to hspa while at work to avoid the constant switching? In setting under network mode there is only options for LTE 3g and 2g.
Does 3g include hspa and if not I've read about a code to enter from dialpad that allows u to set netowkr. I need a method that will allow me to easily switch it depending on where I am.
If anyone knows how to do this any help would be great.