Weak cellular signal after Lollipop...? - AT&T Samsung Galaxy Note 4

My phone go 2 bars max everywhere I go after update to Lollipop. Yes factory reset 2 twice (one with phone setting and one with boot into "recovery screen".
Anyone got this?

Same problem here. Only 2 bars. Doesn't go any higher and internet is slow.

Call ATT for replacement warranty. $15 2 days shipping.
Sent from my SAMSUNG-SM-N910A using Tapatalk

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My [CDMA]Galaxy Nexus will not connect to 3G netowrk.

I Just took my phone back to stock, locked bootloader state and that still did not work.
No amount off turning data on/off works and neither does switching from CDMA/LTE to CDMA.
Is there a number like *228 that i can call to try reactivating it?
Is there anything I can do short of taking it back?
and my wifes incredible 2 can connect to the 3G.
Have you taken the SIM out and booted the phone up without it and then powered it back down and then put the SIM back and powered it backup to see if that does it?
bgmikejr said:
Have you taken the SIM out and booted the phone up without it and then powered it back down and then put the SIM back and powered it backup to see if that does it?
Click to expand...
Click to collapse
nope, but i will.
EDIT: Nothing.
powered down, simcard out, power on, powered off, simcard in, powered on.
Simcard out I was actually NOT on any network at 0dbm. Simcard in it says i am on a network, with signal of 120dbm...
booo
I sure hope these **** third party retailers have one still.
It takes a minute to connect sometimes...give it time ..toggle wifi helps.
Sent from my Galaxy Nexus using Tapatalk
trentonw said:
It takes a minute to connect sometimes...give it time ..toggle wifi helps.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
i have been battling it all day.
Not once has it connected to 3G.
Am I really the only person with this problem?
crap.
You aren't the only one...I had to return mine. I hope they get their head out of their anatomy & fix their radio/signal strength issue. When they get it fixed I will get another one, but I didn't want to risk my return window ending before they get it straight.
strongergravity said:
You aren't the only one...I had to return mine. I hope they get their head out of their anatomy & fix their radio/signal strength issue. When they get it fixed I will get another one, but I didn't want to risk my return window ending before they get it straight.
Click to expand...
Click to collapse
tomorrow is my 14th day, it will be returned tomorrow
This just started happening to me on my 20th day of having the phone...after over 2 hours sitting in the Verizon store yesterday they told me that a maintenance release was expected to be pushed out the end of January that "SHOULD" address this exact issue. Other than that they told me I was SOL.
So I am now carrying around a brick that is less than 30 days old. I am starting to wish I didn't trade in the Rezound I was borrowing until the nexus came out.
This happened to me 2 days ago. It is still not fixed.
I can connect to V's 4G, but when I toggle to CDMA, I get gray bars-no data connection.
I don't know if my 3G antennae got fried or what, but is there a way to reset it?
My Galaxy Nexus is rooted/unlocked but no ROMs.
I don't remember messing around with the radio.
I have tried rebooting, wifi-toggle, airplane mode toggle.
I have not tried flashing 4.0.2.
I have not tried removing the SIM card then turning it on.
I have not tried doing a factory reset.
Any suggestions?
I had this exact problem two days ago as well. I went to the Verizon store and the only thing they tried that worked was giving me a new SIM card. Try a new card. Why mine stopped working for 3G data I do not know.
Sent from my Galaxy Nexus using xda premium
I don't think it'll connect to any network if the sim card is out of the phone, its possible you have a bad sim card.
Sent from my Galaxy Nexus using Tapatalk
ryguy5254 said:
This happened to me 2 days ago. It is still not fixed.
I can connect to V's 4G, but when I toggle to CDMA, I get gray bars-no data connection.
I don't know if my 3G antennae got fried or what, but is there a way to reset it?
My Galaxy Nexus is rooted/unlocked but no ROMs.
I don't remember messing around with the radio.
I have tried rebooting, wifi-toggle, airplane mode toggle.
I have not tried flashing 4.0.2.
I have not tried removing the SIM card then turning it on.
I have not tried doing a factory reset.
Any suggestions?
Click to expand...
Click to collapse
I do not have anything real helpful, but I can tell you that flashing 4.0.2, doing a factory reset, relocking the phone, or swapping out the SIM card does not help this situation.
Just out of curiosity...What method did you use to unlock your phone? I am just wondering if its a certain method of unlocking that is causing this issue. I am unaware of anyone having this problem that has not unlocked their phone.
I've got a GSM not CDMA version but I got 2 phones from different places. The first lasted 3 days before it stopped connecting to my network. It went back under warranty and was acknowledged there was a problem - awaiting return, it's being repaired now.
My second one had lasted around 3 weeks and is now doing the same thing. I'll be taking this one back as well.
My sim works perfectly fine in all my other phones (HTC's and iPhone's) so that can't be the problem.
First phone was unlocked and custom ROM loaded. Second one is as per factory, hasn't been touched so IMO it can't be related to any "customization".
IMO Samsung/Google should have waited another month and sorted these issues out before releasing the phone. I won't be buying another Samsung phone after this one
It just started happening to me a couple days ago. It was working fine. When I'm on wifi for a extended period and switch to 3G it won't connect. But I can connect to 4G. If I reboot the phone it will connect to 3G.
white lie said:
I've got a GSM not CDMA version but I got 2 phones from different places. The first lasted 3 days before it stopped connecting to my network. It went back under warranty and was acknowledged there was a problem - awaiting return, it's being repaired now.
My second one had lasted around 3 weeks and is now doing the same thing. I'll be taking this one back as well.
Click to expand...
Click to collapse
Now you've got me worried. I am hoping that VZW was going to issue a fix & then I would buy another Gnex. If it is gonna commit suicide 3 weeks later...
connection issues
I have had similar issue.
Powering phone off did not help. For whatever reason, pulling the battery reset my data connection.
Its happened twice as of today.
stimr2 said:
It just started happening to me a couple days ago. It was working fine. When I'm on wifi for a extended period and switch to 3G it won't connect. But I can connect to 4G. If I reboot the phone it will connect to 3G.
Click to expand...
Click to collapse
The same thing is happening to me. If im on wifi for a long time and try to go to 3g, i just get the 3g signal with gray bars and no data connection. The only way i can get it to work is by rebooting my phone. Im running bugless beast, which is a stock rom, but i dont think it has anything to do with it.
this just happened to me today. yesterday 3g was fine now nothing. and with lte constantly dropping this is just a glorified "stupid" phone. i contacted samsung support and they said i need to contact carrier. i reverted to stock and flashed stock recovery and locked phone and still no luck. rebooting and removing sim does nothing. we got screwed with an inferior product
I was experiencing these problems all day yesterday. No 3g, only 4g. Reverted to stock and tried everything listed in this thread with no success of gaining a 3g connection.
However, i looked at my phone this morning and i have 3g connectivity again. I'm going to assume there was some maintenance going on because it hasnt dropped since being awake

Losing signal on my HOX

This is weird. When I woke up I restarted my HOX and suddenly signal kept dropping. Keeps saying preparing sim card. What could be causing this? I don't want to keep factory resetting. Seems to be a really great phone but now I don't know if I should return it. Please if anyone can help.
Sent from my HTC One X using xda premium
i have the same problem several times a day...
think it started after the recent update, but could be a coincidence
mi to i have to weak signal on my one x and my htc hd 2 full signal two cellphone stand same plase one x have 2 signal hd 2 ful ??
enyaj said:
This is weird. When I woke up I restarted my HOX and suddenly signal kept dropping. Keeps saying preparing sim card. What could be causing this? I don't want to keep factory resetting. Seems to be a really great phone but now I don't know if I should return it. Please if anyone can help.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
Got exactly the same thing, was told by HTC it was faulty. Send it back for a replacement.
Check out http://forum.xda-developers.com/showthread.php?t=1613521
Sent from my HTC One X using Tapatalk 2
are you using a call blocker? I was getting weird issues when using root call blocker. I had to uninstall it, had read from the app devs they are working on the problem
Sent from my Xoom using xda premium
mine is still stock, but I only had problems after I updated 2-3 days ago
had really great signal before upgrade... havent tried restoring fabric settings, but am searching for custom rom, and will try that out
Already happened to me three times where suddenly "preparing sim card" appears and I lose signal. Had to hard reset all the time. Unfortunately, htc shops here in the Philippines are crap. They say they have to send it to service center even if the phone is a week old. For what? So they open it up? I don't want to have a week old phone opened and fixed. I want a replacement.
Have the phone for 2 week now, and today i also faced this problem for the first time T_T (running stock 1.28)
Just great, first the yellow spots that didn't went away and now this problem on top of it ?
I hope it was a coincidence and hope i won't get worse.
I had my microSIM replaced and so far, crossing my fingers, signal has been full almost all the time. I just had the original SIM cut before, so I hope that was just the problem.
I've read about sim cards been cut to micro sim been a possible cause.
Sent from my HTC One X using Tapatalk 2
Similar fault here with factory micro Sim
Sent from my HTC One X using Tapatalk 2
In Slovenia one carrier has this problem. Only SIM cards older than 2 years work so it is a SIM problem. When I asked them about when they will solve this they told me it's HTC's problem and that HTC is working on the problem. Maybe the next update will fix it. SIM cards of other carriers work ok. So if you can, try cards from other carriers. If anyone knows how to fix this I'd be grateful. I don't want to switch my carrier because other two's 3G network is [email protected]

Still getting signal drops! VZW

I have tried just about every rom and I still get complete losses of service several times a day for about 2 minutes. I am in hardware version 10. Anyone cone across a solution? Is there a better radio I can flash?
Edit: Verizon Nexus
Sent from my Galaxy Nexus using Tapatalk 2
several threads on this, It is Hardware Failure from bad QA'ing on samsungs part, You need to contact vzw explain to them you are loosing both data and voice and they will send you a replacement device, no software patch will fix this.
edit:
also be sure to return to stock and turn S on before sending your phone back. If you can call vzw from a phone that is not your cell
Thanks but this is a Craigslist phone. No matter, my S3 will be here in 2 weeks so I will just deal then.
Sent from my Galaxy Nexus using Tapatalk 2

T-Mobile Users Sim/Data failure?

I have just recently noticed this. From time to time all of my connection bars will go down. and i will get that circle with a / through it. Which means no sim or connection. It will be brief for a second or two and then it will show my bars and data again. I dont think its that big of a deal since it reconnects pretty quick and i dont seem to have problems with anything else. But was just wondering if anybody else had this?
Try getting a new sim. Haven't heard of this one, does not happen to me.
Sent from my GT-I9300 using Tapatalk 2
Yeah ill try that. T-mobile should do it for free right? All i have to do is go to a store and ask that i get a new micro sim and that they transfer my number over to it?
Yes and yes it is free.
Sent from my GT-I9300 using Tapatalk 2

Multiple duplicate text sms messages

Hi all,
For the passed week or 2 I have been getting duplicate text messages. It can be anywhere from 2 or sometimes as many as 8-10 messages that show up in my inbox when somebody just sends me one SMS. Its driving me crazy. I'm rooted so I'm hesitant to contact sprint. I havent found an answer by searching google or the forums. Can anyone offer any tips I can try?
Sprint GS3 rooted running stock jb 4.1.1 no airave, no third party SMS apps.
Sent from my Nexus 7 using Tapatalk 2
bmwguy said:
Hi all,
For the passed week or 2 I have been getting duplicate text messages. It can be anywhere from 2 or sometimes as many as 8-10 messages that show up in my inbox when somebody just sends me one SMS. Its driving me crazy. I'm rooted so I'm hesitant to contact sprint. I havent found an answer by searching google or the forums. Can anyone offer any tips I can try?
Sprint GS3 rooted running stock jb 4.1.1 no airave, no third party SMS apps.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
that happens to me at times where i live because of the horrible sprint service what is yours like? if not i can suggest do a complete clean reinstall of your rom
This is a known sprint issue,its been happening to me since the hero days.
Sent from my EVO using xda premium
My service is so so ... Nothing has really changed as far as the service is concerned. Also it seems to happen regardless of my location (work/home) this is my forth android phone with sprint. Over the years I've had a few times where I would get duplicate texts here and there on various phones but never anything like this. I fear that a factory reset may be in my future
Sent from my Nexus 7 using Tapatalk 2
Can you guys set your roaming options to sprint only? I can on here and i dont really get them unless im roaming,setting it to sprint only seems to help.
Sent from my EVO using xda premium
You have an airave? That might be part of the problem..from how I understand, has to do with delivery protocols...airave will double them at times. Power off airave, then reboot it. Might help, might not
Sent from my SPH-L710 using Tapatalk 2
Thanks for the replies. In don't have an airrave. I'm going to try and set my roaming options to sprint only and see if that helps. Thanks again.
Sent from my SPH-L710 using Tapatalk 2
Naddict said:
You have an airave? That might be part of the problem..from how I understand, has to do with delivery protocols...airave will double them at times. Power off airave, then reboot it. Might help, might not
Sent from my SPH-L710 using Tapatalk 2
Click to expand...
Click to collapse
Iv'e had an Airave since they came out, txt doubling has only happened a handful of times for me. I still think Sprint's network is to blame.
this post sent from my Jellybombed GalaxySIII
I set my roaming options to sprint only. It didn't fix the problem.
Sent from my Nexus 7 using Tapatalk 2
Its definitly sprint,i got a text 6times(from sprint) . I usually refresh my service through tje sprint app also
Sent from my EVO using xda premium
Almost a month later..still have the problem. If somebody texts me once I may get that text 10 times over a day or 2...sometimes even more. I called sprint. They did a soft reset of my phone and advised me if it happens again to try a factory reset. I did a factory reset, wiped cache, dalvik cache. The second my phone booted up after the reset (not a single app installed) I got two duplicate texts from earlier that day. I guess my last hope is to wipe my rom and do a clean install of the rom. It's just the sprint factory rom for 4.1.1 with root. If that doesn't fix it then I guess I need a new phone
______
DT
Wiped ROM. Installed a new stock touch wiz ROM android 4.1.2. Same issue remains. I think its time for a replacement phone
Sent from my Nexus 10 using Tapatalk 2
Im telling you its not the phone,its sprint and their crappy network. Ive gotten duplicate texts since i had a hero.:beer:
Sent from my EVO using xda premium
I had this problem for 1 day and then it went away.
Try a reactivation. Dial ##72786#.
It's not the device (phone) its usually a carrier error happens when you have a weak signal and your phone is switching from 1x to 3g or 4G or between wifi and regular data. The others here are correct it is not the phone, unless the antenna is messed up. Have you also checked to see if the duplicate texts are always from the same individuals? It could weak signal on their part, their carrier or device is actually sending it out twice. I had something similar with texts coming in from att once.
Transmitted with a portable device using Xparent Blue Tapatalk 2
I have been with Sprint since the beginning - about 14 years? I have also have had the original non data Airave and the latest Airave with data.
It is not your phone, maybe sometimes the Airave?, but the problem is with Sprint. Most of the time everything is normal, but then are times when I will get the same text an extra two and sometimes up to four times for a few days straight, then it goes away.
So save yourself the anguish of a hard reset or flash, it is not your phone and most assuredly Sprints network. Also note, it happens to me more frequently and of course randomly in the last 3 or 4 years.
I hate hard resets and re-flashing!
I had this exact issue on AT&T and it turned out to be an app that had permissions to intercept text messages to display an unread number on a widget. The app was blocking the phone from sending a text received signal to the tower.
I very much appreciate the responses. I realize what everyone is saying about it not being the phone and most likely being a sprint issue. I totally have been in agreement up until recently I started suspecting the phone. Like others here I have been with sprint for several years. I have also lived in the same area for all of those years. My phone doesnt roam, doesnt switch between 3 and 4g in my area. This is also my fifth android phone (first was the hero) and my 8th smart phone. I have over the past several years OCCASIONALLY received duplicate texts from one or more of my android phones. What I have experienced with my gs3 is far from occasional. It is constant. We are talking the same text repeated 18 times. It happens every day. Not once or a few times a week but literally multiple times every day. It isn't with one or 2 specific contacts but with multiple contacts included automated texts such as texts from twitter updates. It happened on a clean install. Flashed modem, kernel and ROM. All stock touch wiz sprint stuff. Not a single third party app installed. Previously I did the service reactivation and it helped slightly. I tried it again 2 days ago, roughly a week after flashing the clean ROM and I will say that it has helped a lot. Over the past 2 days I have only received one duplicate text and it only came through twice. If this was the norm then I would be more than happy. Time will tell if it is fixed or not and I will definitely update this thread.
The reason I suspect the phone is because of the immense frequency of the problem. My theory is that if the radio or antenna is weak or failing then this could be why the frequency is so high. Also, I have been experimenting with using the phone with and without the case on and it seems to be worse when the. Case is on. So, in theory if the antenna is weak then the case makes it even harder for the signal to get through. I could be off base but that's my theory.
Also, my daughter has my hand me down galaxy s2. She has zero duplicate texts. We live in the same house and go to the same places. Her phone has never had the issue. I dunno. Maybe the gs3 in general has a weak radio or maybe its my specific phone. Either way its totally frustrating and I doing want to deal with it any longer.
Sent from my Nexus 10 using Tapatalk 2
bmwguy said:
I very much appreciate the responses. I realize what everyone is saying about it not being the phone and most likely being a sprint issue. I totally have been in agreement up until recently I started suspecting the phone. Like others here I have been with sprint for several years. I have also lived in the same area for all of those years. My phone doesnt roam, doesnt switch between 3 and 4g in my area. This is also my fifth android phone (first was the hero) and my 8th smart phone. I have over the past several years OCCASIONALLY received duplicate texts from one or more of my android phones. What I have experienced with my gs3 is far from occasional. It is constant. We are talking the same text repeated 18 times. It happens every day. Not once or a few times a week but literally multiple times every day. It isn't with one or 2 specific contacts but with multiple contacts included automated texts such as texts from twitter updates. It happened on a clean install. Flashed modem, kernel and ROM. All stock touch wiz sprint stuff. Not a single third party app installed. Previously I did the service reactivation and it helped slightly. I tried it again 2 days ago, roughly a week after flashing the clean ROM and I will say that it has helped a lot. Over the past 2 days I have only received one duplicate text and it only came through twice. If this was the norm then I would be more than happy. Time will tell if it is fixed or not and I will definitely update this thread.
The reason I suspect the phone is because of the immense frequency of the problem. My theory is that if the radio or antenna is weak or failing then this could be why the frequency is so high. Also, I have been experimenting with using the phone with and without the case on and it seems to be worse when the. Case is on. So, in theory if the antenna is weak then the case makes it even harder for the signal to get through. I could be off base but that's my theory.
Also, my daughter has my hand me down galaxy s2. She has zero duplicate texts. We live in the same house and go to the same places. Her phone has never had the issue. I dunno. Maybe the gs3 in general has a weak radio or maybe its my specific phone. Either way its totally frustrating and I doing want to deal with it any longer.
Sent from my Nexus 10 using Tapatalk 2
Click to expand...
Click to collapse
One note to your theory - your daughter has an S2 which although is 4G, it is WiMax 4G and your S3 is LTE 4G - your daughter's S2 will not have the same trouble as your S3 because the 4G WiMax towers have been up and running for a while, while Sprint is still working on the LTE 4G, so that could be one of your problems.
With that being said, I am sort of in the same situation, my wife doesn't have the text problem as often or severe as mine as she has an original Epic WiMax 4G and I have a S3 LTE 4G, although my worst case has been repeating text maybe 3 or 4 in a row and then sometimes the same text come to me like an hour to two hours later, but this only happens in spurts every once in a while, as the spurts of duplicate texts happen maybe every other couple of months and only last for like a day, then everything is fine again. I also have been in the same location for the 14 or so years that I have been with Sprint. Anyways, just a thought.
That's a good point. Maybe it has something to do with it. I thought that SMS used the phones voice network though rather than data? I thought only MMS used data. BTW I have never received a duplicate MMS. Also there is no 4g lte in my area yet.
Thanks for your thoughts.
Sent from my Nexus 10 using Tapatalk 2

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