Weak (no bar) 3G signal after back from 2G - Nexus 6 Q&A, Help & Troubleshooting

Anyone with Android 6.0 experience this issue?
So, when the phone enters an area with weak 3G signal, it will go to 2G (GPRS).
This is normal behavior.
Then, when the phone enters an area with strong 3G signal, it will go back to 3G.
This is also normal behavior.
Except, the restored 3G connection is weak. The icon shows with "no signal bar". It is connected to 3G though.
And it will stay like this until I recycle the connection by going to airplane mode and turn-off airplane mode.
My device is Nexus 6, international model. I installed Android 6.0 by flashing the image.
It is not rooted though and it doesn't have much apps.
And yes, I can reproduce this issue every time, as I know exactly the weak 3G area in our building.
Thanks.

Related

Emergency Calls Only?

Running CM6-RC1, and in areas with weak signal, my phone will say "emergency calls only" and have full bar strength and no data connection. Does this mean its connecting to a different provider's cell tower for purely emergency call purposes and showing that signal strength?
I would actually like to know this as well. I noticed this earlier today hadn't happened before. That is what I think it is because Telus does have better reception in this area.
That's exactly it. When you lose signal with your regular network the phone will find the next best, but unless you have a roaming agreement all you can make are Emergency Calls.
Slightly annoying when you don't have the network name visable for most of the time. Would rather have an alt icon.
I have this same issue too. However, I need to reboot my device in order for it to work normally again, it does not appear to automatically re-connect to my network, even though it has signal, unless i restart the device.

[Q] [Stock][I9305] Signal Loss issues

Hi all,
TL;DR: Does anyone have issues with lots of reception loss in areas with less-than-stellar signal on the I9305 (LTE or 3G or GSM)?
Tomorrow, I want to take my S3 to Vodacom (my carrier in South Africa) so that they will hopefully check the thing and fix / replace it.
The problem I'm having is that my signal drops ( (/) "No Access" sign at the top where the signal strength should be) whenever I'm in a low signal area while others have continuous signal (my partner with his I9300 will still be able to make calls).
I've tested with and without LTE on (LTE is spotty everywhere), on 3G (set it to WCDMA Preferred in one of the secret menu's), or GSM/2G (both via the secret menu and the normal one). There are places where I can put my hand over the back of the phone and within 5 seconds, the signal will disappear completely, until I take my hand away.
For reference, I use No Signal Alert to notify me, mostly because when I got my phone, the bad LTE reception caused frequent radio hangs, which would leave my phone without signal until I checked (hours) later, which forced me to switch to "WCDMA Preferred".
Cheers,
LV

[Q] Any way to force 3G instead of H or H+

Guys I have an odd problem.
Where I live, the signal on the HTC One switches erratically and constantly between H+, H and 3G. At every switch of course the data connection goes offline. It's driving me crazy.
Is there a way to force the phone to one of the three: 3G or H or H+?
Please see image 01.
I've tried going into *#*#4636#*#* but the choices baffle me (see image 02). I've tried a few of the available choices but it seems that 3G, H and H+ fall into the same category.
It's probably a dead end, I can't imagine what else to do ..... has anyone else had the same issue?
The 3G logo means it's on voice only, and H+/H means there's data incoming/outgoing. They're using the same radios and frequencies, it's more like an idle state when it shows 3G. 3G will still periodically go up to H+/H to check for any incoming data then goes back to sleep at 3G.
I have the same problem with my connexion. It is only stable when I have the "3G" symbol. I did not find a way to force "3G". It seems the switch to "H" is on demand...
mrechte said:
I have the same problem with my connexion. It is only stable when I have the "3G" symbol. I did not find a way to force "3G". It seems the switch to "H" is on demand...
Click to expand...
Click to collapse
It's normal behaviour, if you have a good H connection it will switch to this when there is data traffic but when there isn't it will switch between 3G and H

[Q] Poor radio (signal) fluctuating problem....

The signal on my Sony Xperia SP fluctuates all the time and changes mode from H to H+ quite a bit, and when I pick the phone up it usually disappears to nothing and I lose signal.
Is there a fix for this? Does anyone else experience this problem?
Made a video to show what I mean https://www.youtube.com/watch?v=DQVTygYlK-k
It is normal that the signal changes from time to time. Normaly a connection is just H and when available it will switch to H+ when the network is in use.
What I advice at first is a new sim card. This does fix most of the network signal issues
thebtman said:
The signal on my Sony Xperia SP fluctuates all the time and changes mode from H to H+ quite a bit, and when I pick the phone up it usually disappears to nothing and I lose signal.
Is there a fix for this? Does anyone else experience this problem?
Click to expand...
Click to collapse
Its normal. You have poor HSDPA signal in your area. Switch to 2G Only Mode when you don't need fast internet connection via data packets.
It will hold better signal (of course if you have 2g transmitters in your area) don't switch modes at all so battery drain is also a little less.

No signal on SMT-705

Just want to ask if your smt 705 ever displays a no signal? The reason I'm asking is I noticed that on my device, the signal bars are always full even when there's no sim card.
Also if I'm on an area with no signal for a long time then went back to an area with a signal, my tab will show full bars of signal strength. However when you try to send a text, it will you that there is not connected to a mobile network.
Anybody having the same issues?
It depends whether you are connected to a WiFi network or not.

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