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It seems I have very good 4g signal at my work but when I am at home, it gets stuck on either 1x or 3g, according to sprint, there is 4g coverage on my house.Does anyone have problems with 4g not working properly? Its getting me annoyed since I use hotspot at my house. Any suggestions would be helpful.
I've noticed it'll show 3 bars of 4g at home, but if I actually start browsing it drops to 3g. My friend had done nothing but complain about sprints network so I am just assuming it's their problem.
Sent from my HTCONE using xda app-developers app
I'm having the same problem! My friends iPhone gets better reception, and we both have Sprint. He gets LTE at my house in my office, but I get 3G or 1X. It's very frustrating. I may return the phone, or leave Sprint altogether, as I didn't have these problems with my Verizon Note 2.
vampire5003 said:
I'm having the same problem! My friends iPhone gets better reception, and we both have Sprint. He gets LTE at my house in my office, but I get 3G or 1X. It's very frustrating. I may return the phone, or leave Sprint altogether, as I didn't have these problems with my Verizon Note 2.
Click to expand...
Click to collapse
I have used sprint chat with an agent and followed every troubleshooting method and still 3g. I will check the store to see if I can exchange it for another phone or see whqt happens
Could just be a week signal. Note that the signal bars on your phone are NOT for 4G. Check out this helpful write up over at S4GRU could help you determine what is up once you check LTE signal levels.
i have two one the htc one's and one will connect to 4g the other will not. anyone else have the same problem. also anyone know the ##code to get into the edit/program section?
greggwv said:
i have two one the htc one's and one will connect to 4g the other will not. anyone else have the same problem. also anyone know the ##code to get into the edit/program section?
Click to expand...
Click to collapse
are you leaving both on the table and checking or is one in your hand?
BrianBaker said:
are you leaving both on the table and checking or is one in your hand?
Click to expand...
Click to collapse
doesn't matter driving down road, in car next to each other. it is a replacement phone but it was brand new from the store just got it setup last night
greggwv said:
doesn't matter driving down road, in car next to each other. it is a replacement phone but it was brand new from the store just got it setup last night
Click to expand...
Click to collapse
the one that has 4G pick it up and due something that uses data and see if it drops to 3G
Heres the code
Tesiting
*#*#4636#*#*
Field Trial
##33284#
BrianBaker said:
the one that has 4G pick it up and due something that uses data and see if it drops to 3G
Click to expand...
Click to collapse
it doesn't can run speed test on it and get 25-28 mbps everytime my original phone did as well
greggwv said:
it doesn't can run speed test on it and get 25-28 mbps everytime my original phone did as well
Click to expand...
Click to collapse
found in the testing screen the preferred network was set to cdma only, not cdma + lte/evdo auto like my other phone but it wont stay to the other, don't know if that is it or not
I'm having the same problem.
Sent from my HTCONE using xda app-developers app
I wasn't able to connect to LTE until I changed my network mode under Settings > Mobile Data to either Automatic or LTE/CDMA. It was defaulted to CDMA Only.
~ Sent from the HTC One ~
greggwv said:
i have two one the htc one's and one will connect to 4g the other will not. anyone else have the same problem. also anyone know the ##code to get into the edit/program section?
Click to expand...
Click to collapse
Hmmm..I just exchanged my silver for a black one and also cannot get 4g. My wife has one and hers gets it just fine. My old one did as well. I have checked all the setting suggested above and still nada. Seems this one is going back as well.
I'm on my 2nd HTC one and it operates the same as my 1st one.. In the dock of my car it connects to 4G just fine..with in a few seconds of handling the phone it drops to 3G..It works fine in great signal areas but on the out skirts of an LTE tower it just won't hold 4G..
Sent from my HTCONE using xda premium
Update prl and update profile
Im in the same boat. Seems like 4g is HORRIBLE with this phone. Had the Note 2 and wife has GS4 both pick up 4g no problem, but the One picks up 4g for couple seconds then drops off completely. Yes, I tested this in the same areas.
really bummed out cuz I got the phone used so i can't return it. Love the phone, but its useless if i can't get 4g because Sprint's 3g is so slow its unusable.
slayer69 said:
Hmmm..I just exchanged my silver for a black one and also cannot get 4g. My wife has one and hers gets it just fine. My old one did as well. I have checked all the setting suggested above and still nada. Seems this one is going back as well.
Click to expand...
Click to collapse
Well I just exchanged my black and went back to silver and still the same issue. I am starting to think the guy that set up my phone on my account jacked something up. I have been all through the service provisioning matching it to my friend that has one....and only found one difference. Seems my phone is only picking up CDMA-EVDO Rev-a instead of CDMA - eHRPD. When I change the prefered network from LTE/CDMA it will try to connect to eHRPD but then switches back to EVDO and no 4G. So I will try to call sprint and have them inspect my account as I have not seen a way in the service programming to force eHRPD. It would be nice to have the others that are having this issue check the Mobile network type as well and see what they are running.
Try not touching the phone and see that it holds 4G until you touch it...I know its pretty useless to not be able to touch your phone but this has been my experience.
In my experience, not touching the phone does not seem to fix the problem. I do notice a small signal loss if I have the left side of the phone against the palm of my hand. The real issue here seems to be related to the phone having some sort of broken threshold from when to switch to 3g to 4g and how much better the 3g signal has to be in order to decide to switch off of 4g to 3g.
I noticed that the LTE Scan Time is set way higher than what the EVO LTE is set to with latest firmware (300 on the HTC One vs 5 on the EVO LTE). I have not had much time to test changing this to see if it makes a real difference or not though. You can check what your LTE scan time is set to in ##3282#. You will need to get your MSL to change it if you want to do that (there is a method to get your MSL without rooting here on XDA).
Another thing you can try to see if it is indeed a reception problem or a problem with the phone not switching between 3G and 4G smartly is to set the phone to LTE / CDMA(1xRTT) only. You can do this in *#*#4636#*#* under the phone information submenu. Tap where it says "CDMA + LTE/EvDo auto" and change it to "LTE, CDMA" or even "LTE only".
kwolf said:
In my experience, not touching the phone does not seem to fix the problem. I do notice a small signal loss if I have the left side of the phone against the palm of my hand. The real issue here seems to be related to the phone having some sort of broken threshold from when to switch to 3g to 4g and how much better the 3g signal has to be in order to decide to switch off of 4g to 3g.
I noticed that the LTE Scan Time is set way higher than what the EVO LTE is set to with latest firmware (300 on the HTC One vs 5 on the EVO LTE). I have not had much time to test changing this to see if it makes a real difference or not though. You can check what your LTE scan time is set to in ##3282#. You will need to get your MSL to change it if you want to do that (there is a method to get your MSL without rooting here on XDA).
Another thing you can try to see if it is indeed a reception problem or a problem with the phone not switching between 3G and 4G smartly is to set the phone to LTE / CDMA(1xRTT) only. You can do this in *#*#4636#*#* under the phone information submenu. Tap where it says "CDMA + LTE/EvDo auto" and change it to "LTE, CDMA" or even "LTE only".
Click to expand...
Click to collapse
Issue resolved for me! After 6 phone exchanges I was able to uncover what was causing the phone to not get on eHRPD which is Sprints upgraded software on the towers. I called sprint support and made them verify my UICC ID under about/phone identity, this also is the same as number as the SIM id. They did not match what was on my account. I went back to Best Buy and they called activation's and they sent a profile update with the correct SIM and UICC ID and it solved the issue. No more 104 data issues and I can get 4G now. WOO HOO!
I do want to say that Sprint really went to bat for me to get this resolved. I have to say thanks to the San Diego Sprint rep who kept in touch with me through out all of this.....Thank you man!!!
slayer69 said:
Issue resolved for me! After 6 phone exchanges I was able to uncover what was causing the phone to not get on eHRPD which is Sprints upgraded software on the towers. I called sprint support and made them verify my UICC ID under about/phone identity, this also is the same as number as the SIM id. They did not match what was on my account. I went back to Best Buy and they called activation's and they sent a profile update with the correct SIM and UICC ID and it solved the issue. No more 104 data issues and I can get 4G now. WOO HOO!
I do want to say that Sprint really went to bat for me to get this resolved. I have to say thanks to the San Diego Sprint rep who kept in touch with me through out all of this.....Thank you man!!!
Click to expand...
Click to collapse
I had the exact same problem. My phone will not connect to 4G LTE. I have a few questions. How do I know the UICC ID, SIM? Where do I find them under my account?
Thanks a lot
bondseven said:
I had the exact same problem. My phone will not connect to 4G LTE. I have a few questions. How do I know the UICC ID, SIM? Where do I find them under my account?
Thanks a lot
Click to expand...
Click to collapse
You have to call sprint customer care to have them verify what you have on your phone. I recommend calling from some other phone when you call though. Just explain that you are having issues with your data and you heard that sometimes the UUIC ID/SIM ID are incorrect. They might come back and tell you, "well thats for international only" but in fact the SIM ID is used for LTE from what I found out. Just insist (nicely) that you just want to try it.
On the phone you can see your SIM ID under settings/about/Phone Identity.
One way to see if this fixes the issue is look under settings/about/Network and look under Mobil Network Type. If it is always running in EvDo rev A. then you have the issue if the towers in your area have Network Vision updated towers.
Hope this helps...PM me if you want more information. I can also get you tower data in your area if you would like.
slayer69, Thank you so much for your quick response. My phone runs with EHRPD when it showed 3G, not rev. A. However, my phone had the same issue, not connecting to 4G/LTE. From time to time, it will show 4G signal on the bar. However, when I tried to use it, it will switch back to 3G. I will call sprint to verify if tI have the sim card issue.
---------- Post added at 08:10 PM ---------- Previous post was at 07:24 PM ----------
I talked with Sprint. It seemed that my SIM/UICC code is matched with the system. So my problem is still not resolved. I used an app to check the signal information, which showed that I have -70dB LTE signal. However, I just can't connect to LTE.
It seems that it is not only me. Check this link
http://www.gottabemobile.com/2013/0...ivity-issue-in-select-markets/#comment-231589
slayer69 said:
You have to call sprint customer care to have them verify what you have on your phone. I recommend calling from some other phone when you call though. Just explain that you are having issues with your data and you heard that sometimes the UUIC ID/SIM ID are incorrect. They might come back and tell you, "well thats for international only" but in fact the SIM ID is used for LTE from what I found out. Just insist (nicely) that you just want to try it.
On the phone you can see your SIM ID under settings/about/Phone Identity.
One way to see if this fixes the issue is look under settings/about/Network and look under Mobil Network Type. If it is always running in EvDo rev A. then you have the issue if the towers in your area have Network Vision updated towers.
Hope this helps...PM me if you want more information. I can also get you tower data in your area if you would like.
Click to expand...
Click to collapse
Thanks to all in this thread. I had the same problem while in Oakland. My wife has an S2 on sprint and she had a strong 4g connection and mine was stuck on 3g. Now if this is a hardware issue that this phone has what if anything can we do. Can we exchange for a different device
Sent from my HTCONE using xda app-developers app
I just got my new M8 today. Did the update, activated it, did the profile & PRL update, etc.
I am constantly getting the message that I am roaming on data. It seems to go back and forth between roaming and not roaming. Even outside I only get 1 bar of LTE and the LTE signal is a good 10dBvm worse than my old M7. My M7 never switched to roaming in the same location.
Anyone else noticing worse reception on this phone than the old HTC One?
I'm having the same issue.
Sent from my 831C using Tapatalk
I was worried bout the same myself. In the office with the M7, I wan't able to get LTE, but luckily with the M8 I am able too. I would have your phone checked at a corporate Sprint Store to see if it's faulty
kwolf said:
I just got my new M8 today. Did the update, activated it, did the profile & PRL update, etc.
I am constantly getting the message that I am roaming on data. It seems to go back and forth between roaming and not roaming. Even outside I only get 1 bar of LTE and the LTE signal is a good 10dBvm worse than my old M7. My M7 never switched to roaming in the same location.
Anyone else noticing worse reception on this phone than the old HTC One?
Click to expand...
Click to collapse
I had the same issue yesterday when I upgraded my radios to the new version (1.54). I was stuck in 3G roaming at my house which was normally low end LTE service before the upgrade. After flashing the radios I did a Profile and PRL update using WIFI, then restated my M8. After the restart I am back to having LTE coverage floating around -90-95 dBvm. I also notice that if LTE fails to connect swithing airplane mode On/Off helps as well as dialing *18 from the dialer. Hope it helps.
captain008 said:
I had the same issue yesterday when I upgraded my radios to the new version (1.54). I was stuck in 3G roaming at my house which was normally low end LTE service before the upgrade. After flashing the radios I did a Profile and PRL update using WIFI, then restated my M8. After the restart I am back to having LTE coverage floating around -90-95 dBvm. I also notice that if LTE fails to connect swithing airplane mode On/Off helps as well as dialing *18 from the dialer. Hope it helps.
Click to expand...
Click to collapse
I already did the profile/prl updates, and my phone isn't stuck on 3G. It will go 3G roaming, then 3G on sprint, then LTE. Seems to not be able to make up its mind. On my old phone it would usually toggle between LTE and 3G in this area, but NEVER did it go roaming. Even when I'm on WIFI I still get the annoying roaming notification in the notification bar every 5 minutes.
I also noticed my WiFi download speed on wireless AC is significantly worse than my M7. I used to be able to get 70mpbs on a speed test, this phone won't even break 12mbps. When I first turned the phone on it would only work on WiFi for the first 3 seconds after connecting and then it would stop. I had to keep connecting and disconnecting to WiFi to limp the software update download along. After it updated it at least stays connected and working on WiFi, but a lot slower than my old M7.
This phone was purchased on a SWAC account so I'm not sure if a Sprint store (which is 40 minutes away for the nearest one) would swap it for me.
Moved to Q&A...all questions should be posted in Q&A.
Thank You,
BD619
My phone used to work great on LTE, but one day it showed the LTE icon, but I couldn't get it to work. If I toggle airplane mode, then wait for LTE to connect it will work for a few minutes, but then go back to showing the LTE icon but not transferring any data. The phone works fine on cdma only, but I want the strong LTE I used to have. I've been dealing with it for over a month, and other people on sprint with different phones have strong LTE that works fine. I have updated the radio, tried AOSP and sense roms, updated radios, removed and inserted the sim card, flashed an RUU back to completely stock, updated profile and PRL.
On sense roms, I would occasionally get the message "Unable to establish a wireless data connection. LTE: EMM-65535, EHRPD: 65535"
Very frustrating, as 3g speeds in my area are awful, and everyone around me can take advantage of the faster LTE signal. Anyone else having this problem? Is there a solution, or is it a hardware issue?
richyrocket said:
My phone used to work great on LTE, but one day it showed the LTE icon, but I couldn't get it to work. If I toggle airplane mode, then wait for LTE to connect it will work for a few minutes, but then go back to showing the LTE icon but not transferring any data. The phone works fine on cdma only, but I want the strong LTE I used to have. I've been dealing with it for over a month, and other people on sprint with different phones have strong LTE that works fine. I have updated the radio, tried AOSP and sense roms, updated radios, removed and inserted the sim card, flashed an RUU back to completely stock, updated profile and PRL.
On sense roms, I would occasionally get the message "Unable to establish a wireless data connection. LTE: EMM-65535, EHRPD: 65535"
Very frustrating, as 3g speeds in my area are awful, and everyone around me can take advantage of the faster LTE signal. Anyone else having this problem? Is there a solution, or is it a hardware issue?
Click to expand...
Click to collapse
Do you expericne this everywhere, or just in certain places? Are you "side by side" (i.e. in the same area) with your colleagues who have Sprint when they get LTE and you don't?
After nearly a year of strong LTE at our house, we rarely get LTE now and mostly 3G. This started about three months ago. When it first started, I only had an EVO 4G LTE, but we have also since gotten a One, and both phones behave the same. We live within 500 yards on the west side of the tower, according to SignalCheckPro. In fact, I can go outside and see the tower. When we do get LTE, SCP will sometimes indicate that the phone is connected to a tower futher away. If the phones have been inactive for awhile, they will initially show 4G, but quickly switch to 3G if we try any type network access (i.e. web, email, etc). If we go to the east side of that tower, we get strong LTE and 5-10 Mbps transfer speeds on both phones.
I reported this to Sprint a couple of months ago, and got a response that they were doing another phase of upgrades on that particular tower. I reported it again a couple of weeks ago, but got no response. There is a major retail business street on the east side of the tower, so Sprint may have re-focused the signal on the business corridor. I have also noted a couple of other towers in other areas of the city where I work that have this same highly directional behavior, and unfortnately, the places where I have to be are on the wrong side of the towers.
So, you could very well have a phone hardware issue, but it could also be Sprint. If you check other fourms, you will find similar reports of areas losing LTE after having it for some time. Which is why I asked if you can get LTE in some places, and not others. You might consider getting SignalCheckPro to see where you are in relation to the towers. IMO, Sprint's LTE network seems to be messed up in many places.
jbhtexas said:
Do you expericne this everywhere, or just in certain places? Are you "side by side" (i.e. in the same area) with your colleagues who have Sprint when they get LTE and you don't?
After nearly a year of strong LTE at our house, we rarely get LTE now and mostly 3G. This started about three months ago. When it first started, I only had an EVO 4G LTE, but we have also since gotten a One, and both phones behave the same. We live within 500 yards on the west side of the tower, according to SignalCheckPro. In fact, I can go outside and see the tower. When we do get LTE, SCP will sometimes indicate that the phone is connected to a tower futher away. If the phones have been inactive for awhile, they will initially show 4G, but quickly switch to 3G if we try any type network access (i.e. web, email, etc). If we go to the east side of that tower, we get strong LTE and 5-10 Mbps transfer speeds on both phones.
I reported this to Sprint a couple of months ago, and got a response that they were doing another phase of upgrades on that particular tower. I reported it again a couple of weeks ago, but got no response. There is a major retail business street on the east side of the tower, so Sprint may have re-focused the signal on the business corridor. I have also noted a couple of other towers in other areas of the city where I work that have this same highly directional behavior, and unfortnately, the places where I have to be are on the wrong side of the towers.
So, you could very well have a phone hardware issue, but it could also be Sprint. If you check other fourms, you will find similar reports of areas losing LTE after having it for some time. Which is why I asked if you can get LTE in some places, and not others. You might consider getting SignalCheckPro to see where you are in relation to the towers. IMO, Sprint's LTE network seems to be messed up in many places.
Click to expand...
Click to collapse
Yes, most my friends have sprint Iphone 5c's and a few android LTE Phones and live in my area. they all have strong LTE. I'm pretty sure it is a sim card/hardware issue because my phone has been completely stock and unrooted for about 2 weeks now, and the LTE Only worked for the first day. Unfortunately I got the phone on the day it was launched, so my warranty is gone. Unless there is some trick to get it to stay connected. :crying:
richyrocket said:
Yes, most my friends have sprint Iphone 5c's and a few android LTE Phones and live in my area. they all have strong LTE. I'm pretty sure it is a sim card/hardware issue because my phone has been completely stock and unrooted for about 2 weeks now, and the LTE Only worked for the first day. Unfortunately I got the phone on the day it was launched, so my warranty is gone. Unless there is some trick to get it to stay connected. :crying:
Click to expand...
Click to collapse
have you tried updating your profile and prl,
Aldo101t said:
have you tried updating your profile and prl,
Click to expand...
Click to collapse
Yes I tried updating those, and updating the radios. Just wondering, when it was new it would always say the sim card was removed when it really wasn't. Is it possible that it has a faulty sim card? I'm pretty sure the sim card is only used for LTE.
richyrocket said:
Yes I tried updating those, and updating the radios. Just wondering, when it was new it would always say the sim card was removed when it really wasn't. Is it possible that it has a faulty sim card? I'm pretty sure the sim card is only used for LTE.
Click to expand...
Click to collapse
Yeah. Some have removed the .cardcand clean it and put back in. Solved the problem??
Sent from my HTCONE using Tapatalk
Also: you might try ##72786# in dialer and reseting your network to default factory settings.
---------- Post added at 06:31 PM ---------- Previous post was at 06:24 PM ----------
Aldo101t said:
Yeah. Some have removed the .cardcand clean it and put back in. Solved the problem??
Sent from my HTCONE using Tapatalk
Also: you might try ##72786# in dialer and reseting your network to default factory settings.
Click to expand...
Click to collapse
if none of that works i'd see about getting the sim replaced
Aldo101t said:
Yeah. Some have removed the .cardcand clean it and put back in. Solved the problem??
Sent from my HTCONE using Tapatalk
Also: you might try ##72786# in dialer and reseting your network to default factory settings.
---------- Post added at 06:31 PM ---------- Previous post was at 06:24 PM ----------
if none of that works i'd see about getting the sim replaced
Click to expand...
Click to collapse
I just reset the network to factory settings, I'll try and see if it stays connected tomorrow when I go back into town where it's strong. The sim card has been removed and seems to be clean. I can't be the only one having this problem, can I?
richyrocket said:
I just reset the network to factory settings, I'll try and see if it stays connected tomorrow when I go back into town where it's strong. The sim card has been removed and seems to be clean. I can't be the only one having this problem, can I?
Click to expand...
Click to collapse
yeah there where others that had the problem too.
I'm not very familiar with this. I've have data (4g lte) connection issues for a while now with my m8.so much so that I'm considering going back to Capts fastboot recovery file just to wipe everything and start over. I'm constantly in a 4G area, but can't get it unless I switch to airplane mode and back. Even then it's short-lived in multiple known 4g areas.
Anyway, tried updating prl. Get an error 1012. But when connected to my airave no problem. Just wondering if that's good to update while hooked up to airave cause I can't in a data area.
Thanks
Don't forget the thanks button!
Ok no one has said anything lol
I've been reading and trying to research my problem. I thought I saw a thread on this same issue but haven't found it yet (hard juggling wife kids work & Android).
Anyway I've spoke with sprint and I just don't trust them.
Been watching my signal on net monitor and everytime I connect to am ehrpd tower my phone tries to connect to lte but apparently didn't want to and jumps down to 3g. I can get lte but has to be a lte tower. Not real knowledgeable yet in this stuff but I'm trying.
Currently on Viper
Firmware 1.54.401.5
Prl 51100
Don't forget the thanks button!
I have no answer for you, but I just got my M8 Wednesday and Im having the exact same issues, its really frustrating
scott_0 said:
I have no answer for you, but I just got my M8 Wednesday and Im having the exact same issues, its really frustrating
Click to expand...
Click to collapse
Your having the same problem with ehrpd towers? Trying to figure this out but Google ain't helping much
Don't forget the thanks button!
stovo06 said:
Your having the same problem with ehrpd towers? Trying to figure this out but Google ain't helping much
Don't forget the thanks button!
Click to expand...
Click to collapse
I'm having similar symptoms. I upgraded this past Monday from a Samsung S3 that had good LTE and CDMA voice inside my home (Plano, TX) and my new M8 cannot maintain any stable connection on the voice or data sides. Even at my workplace, I can only get a weak LTE/Spark connection and no voice. I've already worked with several techs and support people at Sprint throughout the week and even exchanged to another new M8 with no better success. I believe it has to do with the Spark (which is actually one of the LTE-Advanced features) and the CSFB (Circuit-Switched Fall Back) that allows us voice on the old CDMA network until VoLTE to rolled out. I am frustrated enough to turn it back in and just go back to using my old S3.
FWIW...
meadowmuffin said:
I'm having similar symptoms. I upgraded this past Monday from a Samsung S3 that had good LTE and CDMA voice inside my home (Plano, TX) and my new M8 cannot maintain any stable connection on the voice or data sides. Even at my workplace, I can only get a weak LTE/Spark connection and no voice. I've already worked with several techs and support people at Sprint throughout the week and even exchanged to another new M8 with no better success. I believe it has to do with the Spark (which is actually one of the LTE-Advanced features) and the CSFB (Circuit-Switched Fall Back) that allows us voice on the old CDMA network until VoLTE to rolled out. I am frustrated enough to turn it back in and just go back to using my old S3.
FWIW...
Click to expand...
Click to collapse
I have no problem with the voice. This is where it seems many are having problems. I'm trying to figure out if this phone is supposed to behave this way with ehrpd towers.
Don't forget the thanks button!
I've mentioned in a different thread that LTE for me is mostly stable, but it does get a little wonky on me. For example, one day at work the LTE will be strong and solid and the following day it drops out intermittently and toggles 3g on.
Probably a sprint issue, not an m8 issue
I had the same prob with my first M8. Could not got 4g until I switched airplane mode off/on. Took it back withing 14 days and got a new one. This one gets 4g/LTE now but have had to switch airplane mode a couple times. Also, my airave does not like this phone. Sometimes it will give it full signal and then other times 4g will be showing and I have no signal and miss calls. I called airave support and the solution they gave me was to switch to cdma when at home.
This is a known issue with the M8. Some people have had success with HTC replacing the defective phone. http://forums.androidcentral.com/htc-one-m8/390449-sprint-signal-issues.html
Yep, defective phone
I had terrible connection problems after buying a brand new phone! Ex: No service, Dropped calls every minute, No LTE, 3G was rare. Basically it was not even a phone! I had to ship mine back to HTC. This was after hours at the Sprint store, and many customer service chats with HTC reps. I also had to unroot my phone which was a huge hassle considering I just found out how to root it. After getting a new one, works fine.
Don't let them tell you it is a service problem if you are having the same symptoms. THIS IS A HARDWARE PROBLEM and HTC needs to fix your phone. Hope this helps