Data drops on T-Mobile (US) - Xperia Z1 Q&A, Help & Troubleshooting

So I've been having random data drops on my Z1. My phones been off for awhile and one day T-Mobile gave me a $60 month plan for free. Ever since it's been on, I've been having random data drops. I know the Z1S that's on T-Mobile is made of plastic to help with better connectivity. I was wondering if the aluminum body really restricts the signal that much.
Anyone else having this issue?
I'm in Ohio and I usually have LTE everywhere. I know this is somewhat a bug on AOSP rom's, but don't know if it's the rom or the phone.
On @moritz31's Beanstalk ROM.
Sent from my Beanstalk infused Z1

Tmo in Florida and no data connectivity issues. Only had the phone 2 days though I'll be sure to post in here if I start having the same trouble
Sent from my Nexus 7

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any nexus users with tmo in SE michigan getting no 3g for past week?

Its getting to the point where I wanna just sell my tmo nexus and get a ATT one from craigslist and sign up with them. Every 3 weeks or so 3G stops working reliably with this damn company. For this entire week I've had to keep turning on "2G networks only" to get a reliable data signal that won't just sit there when I try to do anything web related. My area code is 48076, an area which is supposed to have really good 3g coverage according to tmo.
Yup. I live near Detroit and my 3G was either slower than EDGE or it wasn't working at all; very frustrating. It seems to be working fine today though, but this has been happening to me sporadically for months. I've called T-Mobile a number of times and they tell me that everything is fine on their end. I'm beginning to think this problem has more to do with the N1 and I'm now looking for new phone.
I don't think it's the phone. I think T-Mobile just sucks. My friend lives in Macomb, he has the N1, and he never has 3G problems.
I stay in oakland county I'm on tmo and I don't have problems.
Sent from my Nexus One using XDA App

[Q] HTC One on ATT or Tmobile?

I am currently on ATT with the Samsung Galaxy S III and I was thinking about switching to TMobile since they have unlimited data and also because ATT has the locked bootloader. The problem is, I am scared of switching to a new service provider. I tried asking around the office and I can't find ANYONE that has TMobile (At least not in the past year or two).
So my question is for people who currently have TMobile. How is the coverage? The speed? There isn't LTE here for TMobile but there is for ATT but I read that the 3.5g that TMobile has is pretty fast.
Any advice either way?
P.S. Please don't go out of your way bashing the other carriers, I am just asking to help me pick the best network for myself and my HTC One. If you have had both carriers, feel free to comment on both. But if you haven't had ATT, please don't bash it (and vice versa)
Once again, if you have had TMobile in the past year or so, please let me know what you think of it.
Thanks
Rob
AT&T HTC One running on T-Mobile 3G. My town finally got refarmed the phone constantly bounces around EDGE, H, and H+ = Battery Drain
But the speeds are pretty impressive, well compared to EDGE. I can literally walk around the house and have it switch between Data Speeds.
Coverage within the City is constant full bars, but now that they started refarming the area it's spotty 3G. For me though it's worth it. AT&T in my area has better coverage when it comes to the suburban areas, but the prices do not compare T-Mobile wins hands down.
Here are a couple Speed Test shots ..
robamacaf said:
I am currently on ATT with the Samsung Galaxy S III and I was thinking about switching to TMobile since they have unlimited data and also because ATT has the locked bootloader. The problem is, I am scared of switching to a new service provider. I tried asking around the office and I can't find ANYONE that has TMobile (At least not in the past year or two).
So my question is for people who currently have TMobile. How is the coverage? The speed? There isn't LTE here for TMobile but there is for ATT but I read that the 3.5g that TMobile has is pretty fast.
Any advice either way?
P.S. Please don't go out of your way bashing the other carriers, I am just asking to help me pick the best network for myself and my HTC One. If you have had both carriers, feel free to comment on both. But if you haven't had ATT, please don't bash it (and vice versa)
Once again, if you have had TMobile in the past year or so, please let me know what you think of it.
Thanks
Rob
Click to expand...
Click to collapse
It all depends on where you live. If you have service nothing is better value than T-Mobile in my opinion.
Well in my opinion I have had t mobile, Verizon and at&t. It all comes down to service I get 20-50 mbps on art lte constantly, T-Mobile can be iffy from time to time if in a rural area and well the price if unlimited plus the price of paying for the phone each month comes close to att. The one thing over the years I have learned is loyalty can go a long way and when your needing that upgrade early it does pay off being with your provider for a while. I hope this helps out and this is just an opinion of mine.
Btw the bootloader is unlockable for att
Sent from my M7 using xda premium
Tmobile of you got good coverage in your area.
I am in the same boat, I've had Tmobile in the past and while the customer service is 10x better than AT&T I could never stick with them due to coverage being an issue. However, the area has recently been upgraded and coverage seems to be much better so I think I'm going to switch soon. Not to mention AT&T stopped offering military discount, while Tmo has the best military discount of any carrier.
Yeah, it really depends where you live. Minneapolis area has great coverage. I plan on switching back to them in June (currently on AT&T).
Don't be afraid of T-Mobile...
Sent from my HTC One X
So I ended up buying 2 HTC Ones from TMobile, they put a hold on my bank account for 300 dollars and then they cancelled the order. I called them to ask them what was up and they said they are cancelling all HTC One pre-orders that are placed because of an IT issue where the processing system doesn't think any HTC Ones are in stock.
But they are letting the system hit my credit to check if I can get the phone and they are charging my bank account even though they know the system will cancel the order at the end.
That along with the fact I'm not quite sure how good coverage/speed is in Toledo, OH has made my mind up. I'm staying with AT&T.
Thanks everyone for your input
Tachi91 said:
AT&T HTC One running on T-Mobile 3G. My town finally got refarmed the phone constantly bounces around EDGE, H, and H+ = Battery Drain
But the speeds are pretty impressive, well compared to EDGE. I can literally walk around the house and have it switch between Data Speeds.
Coverage within the City is constant full bars, but now that they started refarming the area it's spotty 3G. For me though it's worth it. AT&T in my area has better coverage when it comes to the suburban areas, but the prices do not compare T-Mobile wins hands down.
Here are a couple Speed Test shots ..
Click to expand...
Click to collapse
Your just the guy I'm looking for. I'm currently on att with the HTC ONE, but thinking about going to tmobile's prepaid $30 plan. The coverage in Charlotte NC looks good, but I'm not exactly sure because I haven't used it. However, $30 is a great savings. While your out and about, your getting hspa +? But it switches constantly between hspa + and edge?

Thinking of going to Verizon after getting the M8

I have been with sprint for 8 years now. Just got the M8 for the new spark network that according to sprints coverage map, I was fully covered in. We'll, that's not the case. Been having a lot of problems, mainly if I drop to 3g, I actually have no data and no phone calls and can't send texts . I have to wait until I'm in an area that I think may have spark, and reboot my phone. Then I get a flood of text messages and voice mails. This has been going on 3 days now. Apparently this is a mass problem that could be a while to fix. I still have ten days to return it and reverse my contract. Sprint is so bad that if I'm somewhere I don't know where I'm at and try to pull up a route on maps, it will fail to pull anything up, or search for a route until it says no connection, even with 4 bars. It's hard for me to leave since I've been with them for 8 years, but I'm really getting tired of it. Would like to know of anyone else is considering this, or may have left Verizon for sprint and why.
Varekai said:
I have been with sprint for 8 years now. Just got the M8 for the new spark network that according to sprints coverage map, I was fully covered in. We'll, that's not the case. Been having a lot of problems, mainly if I drop to 3g, I actually have no data and no phone calls and can't send texts . I have to wait until I'm in an area that I think may have spark, and reboot my phone. Then I get a flood of text messages and voice mails. This has been going on 3 days now. Apparently this is a mass problem that could be a while to fix. I still have ten days to return it and reverse my contract. Sprint is so bad that if I'm somewhere I don't know where I'm at and try to pull up a route on maps, it will fail to pull anything up, or search for a route until it says no connection, even with 4 bars. It's hard for me to leave since I've been with them for 8 years, but I'm really getting tired of it. Would like to know of anyone else is considering this, or may have left Verizon for sprint and why.
Click to expand...
Click to collapse
I've been with Sprint a while too. Just LTE in my area, works great though. I'll see whenever spark comes to my area. Have you talked to sprint about this problem? Possibly a defective phone or your tower's messed up. Do you have the same issues on CDMA only mode?
Not sure it's possible but I wonder if loading the right PRL might disable Spark. Or there is a way to shut it off in the phone settings.
LTE is still up and down for me so I leave my phone on CDMA 99% of the tie for stability.
Most places that I need speed I have WIFI.
LTE just isn't there yet.
I'm on hairy edge at home and hairy edge at work (both places I don't need it).
Even when I'm in strong LTE areas if you hit a 3G pocket the phone behaves badly.
Have not had it long enough to know if it's better or worse than HTC One M7.
But I switched it to CDMA.
I just loaded PRL 56018. So it roams on VWZ (3G only).
Varekai said:
I have been with sprint for 8 years now. Just got the M8 for the new spark network that according to sprints coverage map, I was fully covered in. We'll, that's not the case. Been having a lot of problems, mainly if I drop to 3g, I actually have no data and no phone calls and can't send texts . I have to wait until I'm in an area that I think may have spark, and reboot my phone. Then I get a flood of text messages and voice mails. This has been going on 3 days now. Apparently this is a mass problem that could be a while to fix. I still have ten days to return it and reverse my contract. Sprint is so bad that if I'm somewhere I don't know where I'm at and try to pull up a route on maps, it will fail to pull anything up, or search for a route until it says no connection, even with 4 bars. It's hard for me to leave since I've been with them for 8 years, but I'm really getting tired of it. Would like to know of anyone else is considering this, or may have left Verizon for sprint and why.
Click to expand...
Click to collapse
Go switch out the phone, another guy just did this in another thread Cuz his LTE wasn't working at all
~m8whl modded stock
2.265 Max ¦ 300 Min
ondemand
row
I had to switch my phone for the same reason you just stated. I don't have these issues anymore.
Sent from my 831C using Tapatalk
I have had sprint over 10 years now. Only reason I stay is I'm on Sero Premium. The network is absolutely horrible in my area. Dropped calls, week signal, 1X/3G/4G no data. I'm sticking it out for Spark & hoping 800 LTE will fix the coverage issues. The m8 has had better signal and seems to lock on a lot quicker. So far haven't had that many issues with it besides the network still sucking of course. If you don't have a good plan on Sprint I would leave. I think it will get better over time but it's still going to be a while yet. I have had problems since last July.
I left Verizon because of the ridiculous bills I kept getting. Boy is their network amazing. Signal and LTE everywhere.
Got the Sprint HTC one m8. I mean Sprint is just terrible. LTE barely works barely have a signal anywhere. Love the phone but only on WiFi around the City
Sent from my 831C using xda app-developers app
Success100 said:
I left Verizon because of the ridiculous bills I kept getting. Boy is their network amazing. Signal and LTE everywhere.
Got the Sprint HTC one m8. I mean Sprint is just terrible. LTE barely works barely have a signal anywhere. Love the phone but only on WiFi around the City
Sent from my 831C using xda app-developers app
Click to expand...
Click to collapse
Same here. I got I think 9 people on my Sprint family plan, we've had Sprint for over 10 years now. I left for Verizon when the galaxy Nexus was relleased. Man, I loved Verizon, but my bill was upwards of $120 per month. Luckily I got to deal where if yo bought 2 or 5 GB plan, they would double it. So i had 10 GB of data at that time. The service was unbelievable, but I hated the price. So after 9 months, I came back to Sprint. Here in Boston, the service is great, but I've also seen a sporadic in and out connectivity.
Sent from my SPH-L720 using Tapatalk
The issue I'm having us that while on lte I'm not receiving calls..
Sent from my 831C using xda app-developers app
Well I made the leap. Went from 03mb to 21mb at work.

[Q] At&t reception issues

I've seen a few threads here and there about reception issues on the nexus 6 and it seems like half of the people are not experiencing this issue while others are. I want to know if there are any other Nexus 6 users on AT&T that experience extremely slow data speeds and poor reception.
I for one, have not seen my signal have full bars and while that doesn't necessarily mean much, I've done speed tests at various times, only to come back with somwhere around .15Mbps down and 1Mbps up. Now, I have tested against a HTC One M8 in the same location, the HTC having 3 bars and Nexus 6 right around 3 bars. The above speeds were from the Nexus while the HTC got 22Mbps down and 5Mbps up.
I believe that there is something wrong with the hardware on my phone, going to go to the AT&T store today and get it checked out. Hopefully they'll replace it. Has anybody else had any experience with this problem and have they gotten their phone replaced under warranty?
the problem isnt the hardware, its your provider. get the issues worked out with them, as thats where your issue is from.
I have had zero issues with my N6 on att. Mine was purchased from att. Signal is as strong or stronger than any other phones i have used.
Oddly, a friend using an unlocked direct from Moto...using on T-Mobile, had many places where he would only get H+ where his T-Mobile branded devices would all be LTE.
Yeah, so I went into ATT and like you said, it was a provider issue. I was under the impression that after upgrading to a new device, it would renew my billing cycle and my data would be reset. This wasn't the case when I spoke with the attendant. I didn't think I was over the data cap on my unlimited plan with my old phone, but I did restore it on the last billing cycle and reset my data usage tracker. Regardless, ATT was throttling my data even after my upgrade, which I thought was pretty lame of them. Especially since Verizon stopped throttling unlimited plans unless there is heavy congestion on the network (although it is hard to tell whether you are on a congested network or not).

AT&T signal issues

Anyone else experiencing connectivity issues as well as signal quality issues..
Confirmed with other users but they are on Sprint.
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app
My signal is the best it's been with AT&T so far. Had a Nexus 5 and 6 on AT&T prior.
I wonder if the phone was using WiFi and LTE together because the WiFi here is slow.
EXYZ1000 said:
Anyone else experiencing connectivity issues as well as signal quality issues..
Confirmed with other users but they are on Sprint.
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app
Click to expand...
Click to collapse
I unfortunately agree with you .... To be honest it seems that the fancier and better our smartphones have gotten, the worse my AT&T reception has gotten. I complained regularly about my M8 and I'm not sure that the S6 might not be worse.
I helped my M8 by forcing 3 or even 2G where it seems the towers are better or the radio is better for non LTE ??? Not sure if we can force 3G with the s6
EXYZ1000 said:
Anyone else experiencing connectivity issues as well as signal quality issues..
Confirmed with other users but they are on Sprint.
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app
Click to expand...
Click to collapse
I have noticed it too. It happened to my note 4 after the latest update. All of a sudden I was getting weak 4g signal when I used to get lte. Then I noticed the update had changed my apn from "phone" to "next gen phone" or something like that. The "next gen phone apn" is the same as comes stock on our s6. When I manually input the old apn I find my signal gets better again on both devices. Maybe it's my imagination but I think it's worth trying.
When I was using my nexus 6 at home id get either 3 bars or none, very odd. But with this I get 2 or 3 consistently, never none so I'd say mine is much better
On LTE in the NYC area signal us better than my S5.
Yep I too am having an issue. I'm in Apex, NC. My previous phone was a HTC One X+. In my house, I had almost a full LTE signal with my X+. Now with my S6 I only get one to two bars in my house with no LTE. Even outside....
I'm reading online that all carriers are having issues with the S6.
Bars aren't always the perfect indicator of actual strength, especially across different devices. How about doing a speed test?
ChristopherXDA said:
Bars aren't always the perfect indicator of actual strength, especially across different devices. How about doing a speed test?
Click to expand...
Click to collapse
In terms of signal strength my signal is -113 dBm in and outside my house. Everytime I get a call now my calls drop or are static. My HTC One X+ never did that. People are asking me what kind of phone I have and telling me my new one sounds like crap.
ManchuWarrior said:
In terms of signal strength my signal is -113 dBm in and outside my house. Everytime I get a call now my calls drop or are static. My HTC One X+ never did that. People are asking me what kind of phone I have and telling me my new one sounds like crap.
Click to expand...
Click to collapse
Strangely, I'm having the dropped calls intermittently as well. Weirdly enough rebooting the phone helps
Obviously I don't want to have to reboot just to make calls
I've been experiencing signal issues as well.
recently, I noticed there is a spot that is showing up on all my pics. lens glass is clean, so it's definitely on the actual lens itself. Even more strange, around the time I noticed this, my signal quality has dropped off dramatically. I go into my basement, I lose all signal reception (this isn't a 1950's bunker. I've always had reception in my basement - cell towers are nearby).
my wife has an s6 as well, and sitting them side by side outside on my patio, her phone has significantly better signal strength. Guessing I got a lemon. New one is already on it's way.
What type of cases do you all have on these phones? I've read reviews on the aluminum cases or aluminum bumpers cutting the cell signal and GPS signal significantly.
she has a silicone spigen case. I have the spigen slim armor. Neither had aluminum. she had significantly better signal strength on her s6.
I got home last night, at this point tired of the signal issues while waiting for the replacement to arrive. when i looked at my signal, I had 2 bars of 4G. Took out the sim, popped it into my old M8, signal was 4 bars of LTE.
EXYZ1000 said:
Anyone else experiencing connectivity issues as well as signal quality issues..
Confirmed with other users but they are on Sprint.
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app
Click to expand...
Click to collapse
I've had poor signal too. By that I mean -101dbm or worse almost constantly, sometimes I will see -96, but generally its between -100 and -112dbm.
I have been on ATT in the same town for years. I have four other Android phones in my house (galaxy s3, Note 2, Lg G2, and Xperia z3), and they all get better signal strength than the S6.
I couldn't be heard on calls, so I complained to ATT and exchanged the phone. FWIW, I had (and am now on my second) 64gb gold colored s6.
I went through trouble shooting with the ATT tech services people and with the Samsung tech support people, they did all sorts of resets, and I even had me boot the phone into safe mode (from off, hold power button, then release it and hold volume down until it boots up).
I am a long time reader of XDA and am posting now because both ATT and Samsung said they had "no reports" of signal issues with the ATT S6. People with signal problems should post about it to get the word out. From what I have read, the s6 is the first or one of the first phones to feature Samsung's own cellular modem instead of Qualcomm's. Maybe its no good, hopefully its just buggy and things will get updated quick.
I was able to put my phone into Testing Mode by dialing #*#4636#*#* and change try different radio settings. The only one that improved signal was "GSM Only"
Switching to that radio setting made my signal go to -80dbm. But of course, GSM-only means 2g edge data. But for now, I am thinking about switching to it when I need to make a phone call.
professormad said:
I've had poor signal too. By that I mean -101dbm or worse almost constantly, sometimes I will see -96, but generally its between -100 and -112dbm.
I have been on ATT in the same town for years. I have four other Android phones in my house (galaxy s3, Note 2, Lg G2, and Xperia z3), and they all get better signal strength than the S6.
I couldn't be heard on calls, so I complained to ATT and exchanged the phone. FWIW, I had (and am now on my second) 64gb gold colored s6.
I went through trouble shooting with the ATT tech services people and with the Samsung tech support people, they did all sorts of resets, and I even had me boot the phone into safe mode (from off, hold power button, then release it and hold volume down until it boots up).
I am a long time reader of XDA and am posting now because both ATT and Samsung said they had "no reports" of signal issues with the ATT S6. People with signal problems should post about it to get the word out. From what I have read, the s6 is the first or one of the first phones to feature Samsung's own cellular modem instead of Qualcomm's. Maybe its no good, hopefully its just buggy and things will get updated quick.
I was able to put my phone into Testing Mode by dialing #*#4636#*#* and change try different radio settings. The only one that improved signal was "GSM Only"
Switching to that radio setting made my signal go to -80dbm. But of course, GSM-only means 2g edge data. But for now, I am thinking about switching to it when I need to make a phone call.
Click to expand...
Click to collapse
Same.....
FWIW i have my s6 (g920I) sitting here with one bar of LTE but under settings/About/status it is showing that my LTE is fluctuating between -109 and -112 db....On my wife's M9 it is showing 3 bars of LTE but under the settings her signal is actually worse than mine at -116 to -119 db....so it seems like the reception is better on the S6 but the bar display may be off...
I just switched from a Nokia Lumia 830 Windows Phone. I had a S4 and S4 Active before that. We just bought a new house, I work from home in a basement office. I had issues with calls dropping and failing to ring. Texts not coming through until I went upstairs, etc. The Lumia seemed slightly better. I've only had the S6 for a few days but I haven't dropped a call yet, and calls connect on the first dial, not third. Both phones show 1 bar of LTE. I was worried the metal would have issues ala iPhone 4. But not only is it more reliable the call quality seems better. I thought HD voice only applied to mobile to mobile, but toll free calls for conference calls sounds noticebly better on the S6 vs the Lumia and S4.
I still think a microcell would be nice, but way too expensive. Any suggestions on finding one cheap? I thought if I complained enough to AT&T with dropped and failed calls to prove the issue they would offer one. Buy 6 months and as many calls later, no luck.
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app
I have exactly same issue, but I'm using S6 Active.
Phone call drops everyday, I already requested a replacement, but I'm afraid it will be the same.
Oh, almost forgot to mention, my wife is using a unlocked T-mobile version S6 on my plan, and her signal is much better than mine.
Sent from my SAMSUNG-SM-G890A using Tapatalk
I live close to a tower. 4 or 5 bars all the time, good sound quality, reliable data connection.

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