I have an S6 Active whereby the radio signal (4G/LTE) fluctuates wildly between say 120 db and 90 or so. I'm using Network Cell Info to monitor the signal plus the SIM status in settings. AT&T says there are no known issues with the closest towers. Turning VoLTE off or on makes no difference. Clearing the cache partition and a factory reset did nothing. I have an S6 Edge with exact same symptoms. I have serveral lines and other phones such as a Galaxy S8, HTC U11 and LG V10 are all rock-solid and hold a steady signal of around 90 db. I've switched sims around to rule out a bad sim card. I have reset network settings and had AT&T remove the phones on the back end and reset the connection.
I doubt if both the S6 Active and S6 Edge are defective. Is this a weak design of the radio and/or anntenna in the S6 series? Has anyone else with the S6 Active had a widely fluctuating signal? I can't say I've had any dropped calls, but then again I don't make many calls with the Active. Just curious if anyone else has had such issues.
rmc69 said:
I have an S6 Active whereby the radio signal (4G/LTE) fluctuates wildly between say 120 db and 90 or so. I'm using Network Cell Info to monitor the signal plus the SIM status in settings. AT&T says there are no known issues with the closest towers. Turning VoLTE off or on makes no difference. Clearing the cache partition and a factory reset did nothing. I have an S6 Edge with exact same symptoms. I have serveral lines and other phones such as a Galaxy S8, HTC U11 and LG V10 are all rock-solid and hold a steady signal of around 90 db. I've switched sims around to rule out a bad sim card. I have reset network settings and had AT&T remove the phones on the back end and reset the connection.
I doubt if both the S6 Active and S6 Edge are defective. Is this a weak design of the radio and/or anntenna in the S6 series? Has anyone else with the S6 Active had a widely fluctuating signal? I can't say I've had any dropped calls, but then again I don't make many calls with the Active. Just curious if anyone else has had such issues.
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Is the S6A switching band's? Especially if it's switching from 30 to 12. That could be your reason.
hotbyz168 said:
Is the S6A switching band's? Especially if it's switching from 30 to 12. That could be your reason.
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Not sure how to tell if it's switching channels. Here are 2 screenshots taken a few minutes ago. It fluctuated from 95 to 117 and then back to 95. As I said, I have 2 S6 phones doing this (an Edge and an Active), but the odd thing is that other phones in the house hold a rock-solid signal in the upper 80's with no fluctuation at all. I recently updated both (S6) phones to Nougat and that might have caused it, but I'm just speculating. This one really has me stumped.
Ok, I just realized it is switching between band 2 and band 30.
Related
Moto X on AT&T MVNO - signal strength drops to 0 briefly - phone or carrier problem?
I've got the Moto X GSM developers edition with Kitkat 4.4 unlocked and rooted. I am on H2O wireless (AT&T MVNO).
Several times a day, I'll hear a quick beep in my bluetooth headset alerting me to the fact that I have no mobile signal. I look at the phone and I have zero bars for maybe 30 seconds and then it goes back to (usually) 4 bars. This happens at home, where I always seem to have 4 bars except for these incidents, so it is not like I am in a marginal signal area and it is going between 1 and 0 bars. Is this likely a problem with the phone or with the carrier? I switched from PagePlus (Verizon MVNO) when I got the Moto X, so I don't have a history AT&T with another phone to look back on. I never had this happen when I was on Verizon towers with my previous phone (Droid 2 global).
I don't know if the loss of signal is real or a bug in reporting the signal strength because it doesn't last long enough to try and make a call. I haven't had any dropped calls, but I don't spend a lot of time talking, so the odds of this happening during a call are low. Still it is a bit of an annoyance and if the loss of signal is real, it will eventually happen during a call.
There may be nothing wrong, the phone may just be scanning for other bands that do not exist in the area. 30 seconds does seem like a long time though. I know when I use AT&T firmware with a different provider in Canada my phone will do exactly the same thing after a fresh firmware install, however after it happens a few times it stops and holds the signal fine. I am guessing it is building a database of what bands and protocols are available in the area. It might not hurt to do a full reset of the phone.
Steve-x said:
There may be nothing wrong, the phone may just be scanning for other bands that do not exist in the area. 30 seconds does seem like a long time though. I know when I use AT&T firmware with a different provider in Canada my phone will do exactly the same thing after a fresh firmware install, however after it happens a few times it stops and holds the signal fine. I am guessing it is building a database of what bands and protocols are available in the area. It might not hurt to do a full reset of the phone.
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That doesn't sound quite like what my phone is doing because you say it happens a few times, then stops. It happens to me every day and I haven't recently installed firmware.
Anyone else having the same issue as me? On a Moto X or any other phone on AT&T?
johninor said:
That doesn't sound quite like what my phone is doing because you say it happens a few times, then stops. It happens to me every day and I haven't recently installed firmware.
Anyone else having the same issue as me? On a Moto X or any other phone on AT&T?
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This happens to me on AT&T on the GSM (T-Mobile) model sometimes too. It usually happens after a phone call is hung up and it's switching from HSPA back to LTE. Sometimes it's instant, other times it's 10-30 seconds.
I am new to Verizon so maybe this is normal but it seems like when I have 2 and sometimes 3 bars of LTE as soon as I try to do something that requires data the LTE will drop off and the icon will disappear. This is kinda annoying as it makes me think the phone is reporting that it has LTE when it doesn't. I came from AT&T and the Note 3 and it seemed like if I had 2 bars of LTE things were just really slow but would eventually load if you were lucky. With this phone I seems like I need a sold 3-4 bars of LTE to do anything data related.
Is this normal behavior or does my phone have an issue? My phone may be going back for a screen issue anyways so this might be just another nail in the coffin.
killeraxemannic said:
I am new to Verizon so maybe this is normal but it seems like when I have 2 and sometimes 3 bars of LTE as soon as I try to do something that requires data the LTE will drop off and the icon will disappear. This is kinda annoying as it makes me think the phone is reporting that it has LTE when it doesn't. I came from AT&T and the Note 3 and it seemed like if I had 2 bars of LTE things were just really slow but would eventually load if you were lucky. With this phone I seems like I need a sold 3-4 bars of LTE to do anything data related.
Is this normal behavior or does my phone have an issue? My phone may be going back for a screen issue anyways so this might be just another nail in the coffin.
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My note 4 before lollipop used to be able to hold a LTE signal with 2 bars. After lollipop what you described started happening... Got the note 5 and it was even worse... It kept dropping LTE to 1x to 3G. So today I exchanged it for a S6+ and so far it hasn't dropped LTE all day.
My brother-in-law gave me an S5 Active (5.0) last week . I played around with it on Wi-Fi and decided to put my SIM card in and try it out for a while. I'm really trying to like this phone, but it's got some issues that are terribly annoying. The cell signal is terrible just about everywhere I am it seems. It's mostly stuck to 4G, but frequently switches between 4G and LTE. I came from a Lumia 640, and I had LTE and excellent signal everywhere the S5 struggles to even get 2 bars of 4G. My mom lives in a rural area and my 640 had LTE in several parts of her house while the S5 cant obtain a signal to save it's life, let alone it's battery. When it loses its signal or I switch on Airplane Mode to reset it, it takes forever to get a signal back, sometimes I have to reboot the phone to get connected again.
I would really like to root it and flash a different radio if that is even an option. But from what I've seen on the forums you can't downgrade from 5.0. I'd also like to change the DPI because Lollipop really knows how to make a 5" screen look small.. But doing this requires root also.
Does anyone else have signal issues like this with their S5/Active? Anything I can do to fix it? Btw, I'm on Cricket and my location is Southeast Michigan.
has anyone noticed that the 4G on the S10 is quite buggy?
the speeds are extremely unstable, and sometimes completely unusable. (not a problem with the carrier, tried it on another phone and it's fine)
What I've noticed is that if it ever goes into medium power saving, 4G will stop working completely, it'll still show 4G, and i can still make calls, but no internet connection, even after exiting power saving mode. The only fix is I'd have to restart the phone for 4G to work again.
anyone have the same problem/ knows a fix?
I've read that I should do a factory reset, but I really want to avoid that, setting up the phone is time consuming.
Side note: battery life is not as good as expected, but that seems to be an issue for all exynos, not just me.
Same Problem here i unlock phone 4G shows but it tanke some time if i can use the Internet
Speed is Very slow and unstable
I am having connectivity problems as well. Keeps loosing the connection. I have to turn on airplane mode then turn it off all the time.
I don't have any problems with network connectivity, so far. In the link my result a moment ago: https://www.speedtest.net/my-result/a/4796337263
Hope you get some sensible connectivity soon. Cheers!
Same issue here! It was fine since I first received the device, but yesterday, I manually changed the network toggle to get better indoor signal. However, even after setting the toggle back to the original setting the LTE and data service kept dropping out. I tried manually toggling, switching network bands, etc... but nothing worked. It just keeps dropping data service.
I just hard reset the phone moments ago, and will update accordingly!
Update - Even after a network reset and hard reset it still dropped to Edge data a few times. However, after the last hour or so, it has locked back on to LTE+ and is holding strong. Seriously hope this is a software bug and not a bum radio chipset or antenna.
a99tandem said:
Same issue here! It was fine since I first received the device, but yesterday, I manually changed the network toggle to get better indoor signal. However, even after setting the toggle back to the original setting the LTE and data service kept dropping out. I tried manually toggling, switching network bands, etc... but nothing worked. It just keeps dropping data service.
I just hard reset the phone moments ago, and will update accordingly!
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I'm on tmobile and my data is horrible in certain and what's weird I have all bars.
Sent from my SM-G965U using Tapatalk
not sure if i should say that its good to know I didn't get a dud.
but man, samsung needs to get their sh*t together, this is not acceptable for a flagship phone.
looks like i'll have to do a factory reset soon.
I'm on tmo as well. I have a feeling it's just jacked up radio software. I did some more tweaking and went into band settings *#BAND# on the dialer and disabled all the LTE bands that aren't used by TMO and that seems to have helped as well. It think this issue is congruent to the known issue with Sprint devices trying to connect to incorrect bands. I haven't used it out and about yet, but it definitely helped my phone stay latched on to LTE from my home. Additionally, when it does drop to HSPA, it doesn't get stuck like it used to.
I recommend tweaking the band setting before doing a hard reset.
Update - still doesn't fix the problem. Pains me to say it, but I'm afraid I have a hardware issue. I'm going to try a sim card swap as a last ditch effort, but will also seek an exchange as well just to get ahead of the problem.
a99tandem said:
I'm on tmo as well. I have a feeling it's just jacked up radio software. I did some more tweaking and went into band settings *#BAND# on the dialer and disabled all the LTE bands that aren't used by TMO and that seems to have helped as well. .
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This shortcut only works on Snapdragon version, do you have Snapdragon with 4G issue?
This code only runs on the Qualcomm chipset version. Oddly enough, my friend with the Exynos version has no problems, even though he's missing a couple of TMO bands for the US.
Yeah I have Exynos S10+ as well and it runs fine on T-mobile USA
a99tandem said:
This code only runs on the Qualcomm chipset version. Oddly enough, my friend with the Exynos version has no problems, even though he's missing a couple of TMO bands for the US.
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This code is not working on SM-G9730 Qualcomm Hong Kong version. Any ideas?
Same problem here. I got the snapdragon US unlocked variant using here in Spain and compared with my old Google pixel, they do not have the same speed LTE connectivity even using the same SIM card. I tried to force using the 20 BAND (800 MHz) but I dont really know how. My galaxy s10 plus is using the BAND 3 so it does not let it picking the fastest possible band in my city. Any ideas? I also did think galaxy s10 plus US variant did not have 20 LTE band, but I checked it and realize it even does. One more question, what is the difference between 4G and LTE? Here in Spain all devices are running 4G, not seen any device running LTE, but my new samsung does. How can I switch it to 4g or LTE+? Thank you everyone boys.
just wondering if anyone has gotten the ASCA/ASC8 update and can report whether this problem is solved wit firmware update?
Bands matter depending on where you are. Depending on your area, only specific bands will be used. However, some bands used, while not faulty, are easily interfered for some reason with cases or other obstructions like your hand. Most likely, Samsung is planning to give a large update considering signal direction. I would probably not factory reset if you have a lot of data, and the problem would probably come back.
I ended up having to send my device in to Samsung for analysis and repair. I'll keep everyone updated.
after ASC8 update, i think the problem has been solved, havent noticed any problems so far
Hi, I have an S21 Ultra 5G, (SM-G998B), the software update is up to date, and for a few days, I started to encounter various problems, sometimes I lose the signal altogether, I can't call, and I can't be called, I receive a message after 10 minutes that I have some missed calls, other times my mobile data does not work, it is set to 5G / 4G / 3G / 2G, I switch to 4G / 3G / 2G and it recovers for a while, then again to 5G / 4G / 3G / 2G when it has problems, to recover.
I thought it was because of the card, but it's not because of it, I changed it, and it still does.
I don't know what else to do, has anyone encountered this problem?
Thank you!
I assume that you compared with another phone at the same location, etc.
Also, get Network Signal to check what levels is the phone reporting.
If you see very low signal levels ONLY on this phone, a trip to the Samsung rep is probably needed as the modem might be fubar.
I have an open case with EE over the fact my Samsung gets 0-1 bar in what they claim is Excellent coverage indoor and outside. My son (PIxel) and daughter (iPhone) have a good signal so I'm wondering if the S21 Ultra has a signal issue.
AdrianKiwiRO said:
Hi, I have an S21 Ultra 5G, (SM-G998B), the software update is up to date, and for a few days, I started to encounter various problems, sometimes I lose the signal altogether, I can't call, and I can't be called, I receive a message after 10 minutes that I have some missed calls, other times my mobile data does not work, it is set to 5G / 4G / 3G / 2G, I switch to 4G / 3G / 2G and it recovers for a while, then again to 5G / 4G / 3G / 2G when it has problems, to recover.
I thought it was because of the card, but it's not because of it, I changed it, and it still does.
I don't know what else to do, has anyone encountered this problem?
Thank you!
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Make sure you have updated the carrier settings app in the play store.
From when is it happeneing ?
Did you try with a different sim card ?
lywyn said:
I have an open case with EE over the fact my Samsung gets 0-1 bar in what they claim is Excellent coverage indoor and outside. My son (PIxel) and daughter (iPhone) have a good signal so I'm wondering if the S21 Ultra has a signal issue.
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Have terrible signal strength everywhere with my s21 ultra
I often find if I cycle airplane mode on and the off again it reconnects to 4g and is less terrible but still find my older mate 20 pro Huawei got much better signal strength everywhere than my brand new Samsung
4G Performance on Exynos S21 Ultra is waaayyy slower than an S10+ or S20+
Hi Has anybody else noticed that the S21 Ultra doesn't seem to deliver consistent and reliable 4G speeds, particularly in terms of 4G uploading. I've done a comparison between my S21 Ultra and a S10+ both on the same network (EE) and the results are shocking. The S21 Ultra simply doesn't...
eu.community.samsung.com
AdrianKiwiRO said:
Hi, I have an S21 Ultra 5G, (SM-G998B), the software update is up to date, and for a few days, I started to encounter various problems, sometimes I lose the signal altogether, I can't call, and I can't be called, I receive a message after 10 minutes that I have some missed calls, other times my mobile data does not work, it is set to 5G / 4G / 3G / 2G, I switch to 4G / 3G / 2G and it recovers for a while, then again to 5G / 4G / 3G / 2G when it has problems, to recover.
I thought it was because of the card, but it's not because of it, I changed it, and it still does.
I don't know what else to do, has anyone encountered this problem?
Thank you!
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Do you have better 5G reception? I had similar problem with 5G reception as my provider still working on expanding it. I am running on 4G for now.
I'm avoiding 5G for now as battery drain is worse having to keep two networks connected. 5G is data only so the phone has to keep a 4G connection for calls/texts and 5G for data.
I have followed EE's instructions: Reset network settings, remove clean SIM, airplane mode on/off, connect to the wrong network and connect back to EE. None of helped
I have the same problem as you. Any solution? I have s21 ultra exynos.
I have since spoken to an EE network engineer about my problem with the signal strength on my phone. So I opened a case due to being in an excellent coverage area but always having a 0-1 bar signal. They did various checks and reported back that everything was fine. I still had a low signal outside with a mast just up the road so they raised it up to an engineer to talk to me. He gave a better answer to my problem, I was near a mast and should have excellent cover. But years after the mast was installed Aldi opened a massive distribution centre right next to the mast and he said the number of phones connecting to the mast was very high thus reducing the signal quality. They are upgrading the mast to 5G so that should improve the situation for me. My original thought was the phone aerial was not up to much but after checking with others in the street they had the same signal problem. So it was Aldi's fault
Signal on my S21 Ultra is fantastic, Vodafone UK. I'm on Vodafone with my work iPhone Xs and the S21 Ultra always has at least one bar more.
I anticipate that you in comparison with some other smartphone at the equal place, and so forth.
Also, get network sign to check what degrees is the smartphone reporting.
Tutuapp 9Apps Showbox
If you see very low sign tiers best on this smartphone, a ride to the Samsung rep is probably needed because the modem might be fubar.
I have signal issues with EE too with s21U. Never had problems in VODAFONE UK. Glad that it is not just me on this boat.
Do let me know if any of you guys sort out this. I know it is not to do with our devices, it might be to do with a config issue either at our or their end.
Has anyone ever found a solution to the abysmal signal strength on this lemon
s21 poor signal strength
I've just upgraded to the s21 from the s10. Problem is that I now only get 1 bar showing on the signal strength most of the time (including home). On the s10 it was on 3 bars most of the time using the same network and SIM. If I swap the SIM card back to the s10 I get 3 bars showing again I...
eu.community.samsung.com
noone606 said:
Has anyone ever found a solution to the abysmal signal strength on this lemon
s21 poor signal strength
I've just upgraded to the s21 from the s10. Problem is that I now only get 1 bar showing on the signal strength most of the time (including home). On the s10 it was on 3 bars most of the time using the same network and SIM. If I swap the SIM card back to the s10 I get 3 bars showing again I...
eu.community.samsung.com
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Haven't faced any signal issues so far. I get fantastic LTE signal on my S21U, same as my wife's OnePlus 6. No issues with call quality or network speed either.
Congrats
I'm guessing your not in an area with iffy coverage then or your just lucky
Most are not
Which is quite evident if you bothered to read any of the thread I posted as an example
noone606 said:
Congrats
your just lucky
Most are not
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I'm sorry that you have problems with your device, but do you know most people? The vast majority of people who bought this phone, doesn't face any issues with the signal, so they don't go to post on forums about it. There is always that loud minority who think that everyone has this problem, just because they have it.
And it's "you're", not "your".
Nice Grammer
noone606 said:
Nice Grammer
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I hope that was sarcasm...or you just dug a deeper hole
Very poor signal here too with ee, my rog phone 2 was always full strength with 4g yet me s21 ultra is only 1 bar with no data... and yes I have triad everything, everyone in my house is on the network yet they all have 4g and good signal.