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[Q] 4g connection issue-keep dropping down to 2g

I just got the 200mb data plan It support 4g
but HTC sensation keep dropping down to 2g
I read from other site to change the sim card and i did still it keep dropping
i try WCDMA ONLY for the network 4g will stay connected but then my phone signal will drop
its been a known issue for this phone i mean its is the best phone on tmobile right now but what is the point if it keep dropping connection
does anyone know how to fix it
i read somewhere that it has to do with the signal band as well

Same here, but mine does this once in a while. Not often.

Shoot I thought I was the only one.....what speeds are you guys receiving over the "4G" network?

i call tmobile up but they didn't seem to help much at all
i mean if i have to go outside to use 4g what is the point
i have 4bars signal inside the house just that it keep switching to 2g
someone told me 4g connection is separate from phone signal
but if so then how come when i switch to WCDMA ONLY mode i get 4g connection, how come my phone signal drop to 0 bar

I get it very rarely as I said. I'm getting good speed over 4G:
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im on my third sim card and still had spotty 4G coverage...installed the new InsertCoin RC1 2.3.4 and it seems to be working great now...

@OP, is this your first 4G phone?If not, what kind of signal were you getting before? If you get good 4G on another phone but not this one ask for a warranty replacement.
Is this only happening in your home is it everywhere you go? If it's everywhere, see previous question.
If it's in your home only Where do you live? Call T-Mobile and ask about the new 3G in home repeater. It's being trialed in a few markets but I can't remember which ones. Maybe you qualify for one if your having signal issues in your home.

this is my first 4g phone
what is InsertCoin RC1 2.3.4
i would like to try see if it work for my phone

[Q] Most recent radio? [SOLVED]

Haven't had this phone very long so I know nothing about the radios. Not sure how much of this matters but I'm on i9020t, currently at&t but soon tmobile, east coast/appalachian area, running JellyB-tsm (4.2.1). Thing is, I went and flashed one of the five I downloaded and it worked so I moved on, now I'm getting bad calls and wifi problems.
Different but related problem, see post 3...

Re: [Q] Most recent radio?
Try here lot to readhttp://forum.xda-developers.com/showthread.php?p=14564429
Sent from my Nexus S 4G using xda app-developers app

Re: [Q] Most recent radio?
Just flashed the latest radio on the sprint model. It increased my call quality and wifi issues I was having.
Read through the radio thread I know some of them help in some areas but make other signals worse.
Sent from my SAMSUNG-SGH-I717 using xda premium

Alright so here's my recent issue. Just switched from at&t sim to tmobile sim. I entered the apn settings straight talk says I should and I'm getting excruciatingly slow data. I stumbled across a few different settings for tmobile apn and none of them even gave me a connection. I'm about to start flashing radio after radio to see if anything works but if someone knows something else that might fix it (ie working apn settings) let me know.
Sorry this is so big but upload isn't working here.
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n2d551 said:
Try here lot to readhttp://forum.xda-developers.com/showthread.php?p=14564429
Click to expand...
Click to collapse
This is where I got them but it doesn't really say much about them.

9020a and 9020t have different radio hardware
they are not interchangeable
...so i would ASSume neither are the sim cards
fwiw

Please check IMEI label under the battery for your actual phone model.
An i9020a won't work on 3G 1700 band, you are getting 2G GPRS data speed (the little G on signal icon)

Apparently I'm just not in tmobile's 3g network, didn't even occur to me considering every other major provider works great here. I also didn't realize that just the G symbol was 2g or it probably would have clicked. So anyone wanna trade a 20t for 20a?
And both sims worked, but with the at&t card I only had an edge connection.

IF your 3G internet download is ridicolously slow..

Thought I put this here, in case someone has the same issue.
Just got my Orange UK S4. Orange also run a 4G network called EE, and my phone is EVR ie EE network coded.
My contract is NOT on the 4G network, since I didnt need it.
My first attempt at using the internet connection (away from wifi) was a download of a 1.5meg PDF attachment in the email app, and it was ridiculous slow, like it took 5 mins
Also the browser was not responding or downloading data at all.
So had a brain wave and went into network settings/more networks/mobile networks/network mode/ and changed from 2g/3g/4g, to "2g/3g"
and this solved the issue perfectly.
I think the problem is that in the 4G mode, the phone keeps trying repeatedly (like for every packet) to connect in 4g, and gets rejected by the network, so downshifts to 3g or HDSPA for downloading one packet, and repeats the whole merry cycle...
Hope this might some confusion for others in the future.:laugh:

More likely that the phone was camped onto an Orange 3G bts initially. By swapping network type selection you forced it to pick up a tmobile site....remembering that tmobile and orange share each others networks now under the banner of EE.
A lot of orange sites were never that fast anyway, even worse now the join with tmobile. They are relying a lot more on the tmobile 3G sites.
Sent from my iPad using Tapatalk (how ironic is that eh)

On T-Mobile here and switching LTE off makes absolutely no difference to my speeds :/ Ran a test with LTE on and off and I get 10Mb on and off.
Sent from my GT-I9505 using Tapatalk 4 Beta

No probs on 3 network :good:
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OP here!
The first download was crazy slow, 1000 times slower than when I was on the pure Orange network, but it seems fixed now, and on my new rom flashed yesterday, it seems ok.
Completely agree about the orange/EE service at present. It has become terrible, I think they are shoving all subscribers onto one network, and its becoming harder to make a call without it dropping etc... And this is in West London!

How is your Edge signal strength???

I was having rather poor signal strength from my Edge. (no more than 2 bars at most) At first I was really concerned that the rooting may have some effect on it?? Or maybe even the quality of my local Vodafone. However after do the following steps....suddenly I get full bars (always):
Go to Setting --> more networks ---> Mobile network ----> change to WCDMA/GSM auto instead of the LTE/WCDMA/GSM
From what I have found, the mobile internet connection is still fast (dont see obvious difference with the LTE) and in fact it seem the battery life last a little longer. I guess I will just keep to this setting.

i'm on N915G - all's good. in fact, i think it's better than the Note 2 i was using before Edge came along.

RobinLoi said:
i'm on N915G - all's good. in fact, i think it's better than the Note 2 i was using before Edge came along.
Click to expand...
Click to collapse
How many bars you get when you set to LTE/WCDMA/GSM mode??

i'd usually get 3-4 bars.. more 3 than 4 actually.

Bars are more a visual gimmick.
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I have sprint and never get more then 1 or 2 bars in my house. But the speeds always stay the same.

I get 4 to 5 bars of LTE on my T-Mobile edge, whether I am at work or at home. I usually average 30mb down and 15-20mb up.

All good.....I just find out it's the Aussie Voda 4G network that is crappy, especially in the area I live in. It's worth noting for Voda Aussie users that their 4G network only for internet (data only), and they dont support normal call or sms txt. For normal call or sms they will automatically switch back to 3G. Personally I dont see much benefit switching to 4G in my case, for I think the internet is already good enough for 3G...and I do believe when you switch to 4G, the battery drain faster. (noticable).

Replace your simcard

No use...because when in certain area..i got full bars...and in downtown city too. I guess voda signal depend on the area.
Sent from my SM-N915G

Hi
I'm in Perth, living near the city, using Optus. As soon as I changed it to WCDMA/GSM, it went from max 2 bars to 4 bars.
Thanks.
Sent from my SM-N915G[/QUOTE]

VOLTE or no VOLTE which is it? Plz help

The Pixel 2 I purchased for my father stopped working a few days ago, with the 3G shutdown going on. His carrier is Consumer Cellular which uses AT&T towers exclusively. So from what I understand phones on AT&T's network will be required to have VOLTE. I'm a bit confused as to whether or not this phone is indeed capable of using VOLTE. In the settings menu under network type, the only two options shown, are 3G or LTE, and when I pull up the secret menu via the dialer app, it shows this phone is not provisioned for VOLTE. Can that be changed? See attachment, even AT&T's own documentation states that after the 3G shutdown, the Pixel 2 will continue to work on their network. Currently, with the phone set to LTE mode, internet is working at full 4G speeds, but the phone will not dial out or can receive calls. It fails instantly. Now when the phone is put in 3G mode, both incoming and outgoing calls can be made no problem, but internet is much slower. Predicatably the Consumer Celluar agents are clueless, and since were not account holders with AT&T, they won't talk to me. So at this point, we either find a way to get the Pixel 2 working, or I buy him a new phone. He wants to stay with Consumer Cellular. If anyone has any insight, would be greatly appreciated. SO FRUSTRATING!!
thanks
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How to enable volte & vowifi on pixel 2 xl - Google Pixel Community
support.google.com

https://www.reddit.com/r/GooglePixel/comments/7g4lup

FWIW, I have the exact same issue with my Galaxy S8 on Consumer Cellular. It's on AT&T's list of supported devices but calls fail immediately when on LTE network. Switching to 3G makes calls work for now, but I know that's only a temporary solution. When I put in the IMEI on Consumer Cellular's website, it even says the phone is supported!
We have been very happy with Consumer Cellular in the past, but our experience with this issue has been really frustrating.

We switched to T-Mobile Prepaid and everything worked as soon as we put in the new SIM: VoLTE, WiFi Calling, etc. Goodbye Consumer Cellular I guess.