Data Speed issue...AT&T or hardware? - Samsung Galaxy Note 8 Questions and Answers

After losing radio streams several times on my Note 8 (and never recovering the stream) I called AT&T about the issue. They said my phone was not provisioned correctly (old sim card from 8+, wrong imei version??). Said this would fix data speeds.
Instead phoned stopped working, no calls. I called on another phone and they got voice and text working, but data speeds we still slow, either no data or a max of 4 mbps on fast.com (versus 30 mbps on iphone 6 at same location).
They want to replace phone. Is this a common issue? I searched here and saw some setting tips, but they were already enabled.
Thanks

I did have issues with speed and signal strength. https://forum.xda-developers.com/att-galaxy-note-8/help/factory-unlocked-note-8-slow-lte-speeds-t3680090 I performed the steps in this post and it got me faster speeds and a bit better signal. Not sure if you tried it yet but I would suggest doing as it won't hurt anything. I too have an old sim card that was first in my iPhone 7+, then my S8+ and now in my Note8.

Thanks I did that and was already set-up as indicated and it did not help.

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[Q] 3G- no data, but GPRS, Edge & HSDPA ok?

I've had this problem with my Nexus One for as long as I could remember, but kinda ignored it - thought perhaps a new radio would fix it, or a new ROM...
But no, it still bugs me.
Basically, if the phone is on 'normal' 3G, I cannot receive any data. It just gets no connection. If I have HSDPA, or GPRS or EDGE - it all works fine.
But 3G? Nothing. And its EVERY time.
Travelling on the train every day, HSDPA isn't stable, so it often drops to 3G, but then it drops dead. I have to restrict the phone to 2G if I want to check things reliably.
I've tried every radio from every country from the original to the latest 5.12 leak.. yes, speeds increase, HSDPA engages more often, but as soon as I'm on normal 3G: Dead.
And I've tried all ROMs (original, MCR, Cyanogen, Desire, MIUI) - same.
Any build.prop tweaks I could find... same.
Now, I remember talks about this when the Nexus came out originally - but there doesn't seem to be any threads about it now, so do I just have a faulty Nexus One that I've put up with since Christmas last year?
Or have I missed something blatantly obvious that every else did to fix this problem?
Any help gratefully received
Pardon my grammar and spelling I'm typing from my phone without swype and its annoying. I had a similar problem. When on 3g I'd miss calls texts, etc...I had my boss call in my face and my phone didn't ring. It got so frustrating I turned off 3g for several months. Too make a long story short ....all those 3g problems went away when I 2.2 came out on xda I put a new radio and rom on. I can't tell u if it was the radio, 2.2, or if tmo had simply added new towers or improved signals from tmobile.
I'd call tmo see how your area looks and if there's any new towers.
I've been on 2.2.1, and 2.1, 2.2, and used all the radios that have been released.
All the same.
I'm in the UK and on Orange, and I have spoken, well, tried to speak to my network about it a couple of times, saying the fact that I've had this issue in the past with my HTC Hero, and I've tried every software update, radio, etc, but because the Nexus One isn't an Orange handset they blame that, Android, or the signal in my area. Yet, I can't believe its just 'Android', and it can't be all signal where-ever I go, so perhaps my phone does have a fault? I don't know!!
The common denominator between this and my Hero is the SIM card.. but convincing them the SIM is faulty is nigh impossible. I'm receiving calls and texts on 3G, and get data all the other times, so it can't be... can it?
Argh, as you can see, this is slowly driving me mad..!!!
Yours sound worst than mine. I used to have very reliable 3G data until upto mid October. After that period, there were numerous reports of Orange UK users struggling with data blaming (with high possibility) on merge plan with T-Mobile.
I tried SIM with my Hero and Nokia N82. All 3 phones suffer the same poor 3G connection and in places I spend my time mostly, all struggle to get any form of internet. Few months back on same places, all my mates were impressed by Orange's coverage.
Yesterday, out of nowhere I received a sms from Orange confirming that merged plan went well and customers are to benefit from all cell towers of both network. Couldn't stop smiling then tried to access XDA on N1's browser. Safeguard was ON and access denied. Tried to open few more, all same. Frustrated almost dialed 150 but couple hours later, all started as normal with H signal. No interruptions, no waitings and no error msg. Tested for almost 8 hours. Though still to confirm the reliability.
One more thing I noticed is that before I was using WM's AVS kernel. Almost always once in every 4 attempts, a msg would pop up on error connecting. Changed to SVS kernel and msg still would appear but very very rare. BTW, on latest Nightly.
Coming to end with orange contract and if problem continues, I'm moving to O2.
Try your SIM on other phones to see whether it's the issue with N1.
I might have the same problem. but this just came up 2 nights ago. while connected on data network, all is fine until it drops to 3G, app (opera mini) freezes and you will have to force close. restricted my network to 2G and all was fine. then a while ago i enabled again on 3G and all was fine again.
is this a sign that i may get your same problem soon?

[Q] vodafone uk 3g issues?

Having slight issues with my note on vodafone Uk, whenever I try to browse the internet and the 3g sign in status bar shows weboages don't load at all, when the H is showing bam they load really fast, and even when the E is showing they load but slowly, which is to be expected with edge. So why wouldn't it be loading when on 3g? Have I got some setting wrong on the phone?
HSDPA is faster than 3G.
3G (3rd Generation of Telecommunication Standards) is a standard of cellular connectivity which allows for speeds of up to 384 Kb/s downstream and 64 Kb/s upstream. 3G HSDPA is a 3G enhancement. HSDPA (High-Speed Downlink Packet Access) is a new mobile data protocol and is sometimes referred to as a 3.5G. Theoretically, HSDPA speeds can reach 3.6 Mbps downstream and 348 Kbps upstream. But the purpose of putting both on a smartphones is to make sure that your phone get internet access even when the other one is not available or have no access
possibly an issue with vodafone, have you contacted them to see if there are any issues?
as for the above post, totally irrelevant and hsdpa wil lgo alot faster than 3.6
Richy99 said:
possibly an issue with vodafone, have you contacted them to see if there are any issues?
as for the above post, totally irrelevant and hsdpa wil lgo alot faster than 3.6
Click to expand...
Click to collapse
Yeah they seems to think my sim card needed resetting, but hasn't made a difference, still does it. Hopefully someone has the same issues with a work around searched the net for hours, with not effect. The other weird thing is if its stuck on 3g and not loading I usually disable data on power button menu then er enable and H usually comes back and it works again, even if I turn it to GSM only in network setting, so Edge is only possible it works fine also just takes ages to load any pages which is annoying!
how long you had the sim card? it might be a provisioning issue with it
You think? Well I've had it a few years now like, 3 I think.
Vodafone SIM card works fine in my Note (SIM free from Germany).
I'd suggest try your SIM card with a different phone and try a different SIM card in your Note if possible to see if the fault is with your SIM card or Note.
P.S. Are you using any custom ROM? Could be a problem there.
No I'm on stock rom kka, yeah sure its something today with network or sim card, just rang them to get a new similar. Hopefully that will sort it out.
.
Fixed my issue, turns out it was happening a lot with people who have the galaxy s2, needed to enter code *#301279#, and release 5 hspa only, then disable fast dormancy mode on the phone, now I'm getting fast 3g everywhere :-D
It does say 3g and not just g?
if youre in the uk and only getting edge or gprs it may not be the phones fault.
I had a similar issue, we all assume we can get full 3G everywhere, not necessarily.
To solve this you need to buy the Vodafone sure signal box, it basically plugs into your home broadband router and then transmits full 3g around your house to whatever numbers you register on the box, including dongles.
The whole family can use it as you can register 32 numbers into it.
Cost about £50 new, i have a BNIB never been used or taken out of the box new one here, up for sale as it happens for £25.
Anyone interested should PM me....
Or you could just use wifi as you are at home anyway.
As I said sorted the issue it had something to do with the phone locking into search for hspa, and not reverting back to 3g when there wasn't any hspa signal. Apparently its a problem Samsung are working on. But the little fix of only scanning for 3g works for now, and I did a bandwidth test on hepatitis, and 3g, and 3g was actually faster. So not bothered.
Great find bud u should start another thread explaining the steps in a guide cause this is great info for Vodafone UK users
Sent from the HD2's closest replacement, the Samsung Galaxy Note

Tmobile N6 on VZW LTE problem.

Hey guys,
Picked up a tmobile N6 today and successfully activated it on VZW. Had to cut my S4 simcard to fit. Everything seems to be working well (other than voice and data at the same time nbd) except LTE speeds are painfully slow. I'm getting a lot of time outs while loading play store, etc.
Any ideas how to fix this issue? I am in an area with a strong LTE signal. WIFI speeds are normal.
Don't tell me this. I just ordered the T-Mobile unlocked version for my Verizon line. I already have a nano Sim because of my current device. Maybe its something to do with the mobile data settings? Have u checked ur settings?
Maybe its your sim card?
I trimmed my Sim card as well and have no issues. I did have the Sim card in before the first power up though. Maybe a factory reset.. Bought mine from Google though.
rpxz said:
Hey guys,
Picked up a tmobile N6 today and successfully activated it on VZW. Had to cut my S4 simcard to fit. Everything seems to be working well (other than voice and data at the same time nbd) except LTE speeds are painfully slow. I'm getting a lot of time outs while loading play store, etc.
Any ideas how to fix this issue? I am in an area with a strong LTE signal. WIFI speeds are normal.
Click to expand...
Click to collapse
sounds like your local providers issue today. 1. you are connected to verizon. 2, you are receiving data. so your connection is actually fine. the issue is with your local data speeds. try calling your provider and asking them whats up, if it is not the way your network is normally. they could just be having an issue today.
Update:
Not having the issue anymore. Just had to do a couple restart and the speed issue was resolved. I was thinking maybe a network issue but my wife's S4 wasn't experiencing the same problem.

Major Call Drops on S10

I would like to share a peculiar trouble with my S10 that I purchased 8 days ago.
At my workplace, wherein I have been working for about ten months, I am now experiencing major trouble in calling with this phone - the person at the other end is never able to hear my voice properly - in every call!
But, outside of my workplace, this problem does not occur at all! Voice quality is amazing.
I went to the service center. One of the representatives immediately advised a factory reset and fresh installation of software from their system. I got that done, but the problem was still there. Very poor connection!
I went back and another representative gave me an advice which has solved my trouble magically! Now, the call quality is back to normal just like i get outide my workplace.
The advice given to me was to change the Network Mode from LTE/3G/2G to 3G/2G. He had said that this new phone has more bands than ever and that it is possible that my workplace environment does not support the new bands (sounds illogical). By the way, the signal bars still show 4G icon but not Volte/LTE like in the other network mode. (And my last phone, Mi 5, never gave me such a trouble)
Although the problem was solved, but i wondered that changing the mode from LTE to 3G will have a bearing on the data speed. I used Ookla speed test to determine that and yes, there is a major difference in download speed - it is less than half in 3G/2G network mode.
Can you please tell me if there is a trouble with my device harware or was the representative right?
LTE does require a much stronger signal than 3g and when you default to LTE the phone is probably just getting enough LTE to stay locked in to the signal. The LTE signal is getting knocked down in your building. Also HSPA+ will propogate better than LTE, even on the same bands.
Thanks for responding. In all this while I've done a lot of research. I managed to ask someone to come with their S10 to my office. The calls went through with this S10 without any hiccups whatsoever.
Also, I've been using the same network in this workplace on Mi 5 without any trouble. Also, there are many S9 and S8 users in my office. They have never had such complaints and they call on VoLTE.
Also, I tried two other networks and the problem persists.
Clearly, there is trouble with my phone. It is with the service centre now for diagnosis but they have been claiming that the problem lies with network in my area.
At the service centre there was another customer with Note 9 who complained of similar call drops but in random locations. The service centre simply did a fresh softwareinstall and sent him back.
My problem is that I will never be able to prove to them about call drops since the drops do not happen at the service centre.
I've had many occasions where I'm on the phone and the call drops. I try to pay attention to the screen as the 6T was pretty bad for that (I would face hang-up all the time) and it seems better with the S10 but I still get a fair amount of call drops. If I even attempt to hold the phone with my shoulder, it's almost guaranteed it will hang up as the proximity detector will enable the buttons.
Keep LTE enabled for data, but turn VoLTE off so calls switch to 3G/2G
Did you try to use a different sim card?

Question Slow data speeds

My data is incredibly slow. I am nearly getting triple the speeds on my oneplus 8pro.
I have reset the network
Checked to see if data saver is off.
The apn is correct
I'm on T-Mobile and have the unlocked S21ultra.
Any ideas?
I am having the same problem in the same network with same phone. I was thinking it was t mobile and connecting to 5g. Trying to duo someone is very spotty unless I have full bars and sometimes not even then
I got a new sim card(r-15) hoping it helps
Same here.
2 devices, both pre ordered from Sammy, Tmo variants, both silver 128gb.
Slow speeds.
I am having the same issue and thought it is because I am using a private dns to block ads (dns.adguard) but it doesnt seem the case.

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