Bad Signal Reception - General Questions and Answers

I have a Droid Razr Maxx that I just root to Cyanogenmod 11. Under the stock system Jellybean 4.1.2 I got great signal reception usually 4 to 5 bars on Verizon. Now after installing Cyanogenmod 11 I bearly get 2 bars and the internet sucks. I use hotspot on my phone with my laptop and could watch videos, movies without a problem. Anybody experience this and got it resolved?? I read in post where people blame it on the hardware but it worked fine before the root and it is happening on different pieces of hardware and on various carriers so that says O/S to me, what do you think?
Thanks

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[Q] [D720] Poor celldata and wifi reception in known good areas

Hi,
I just went from an HTC Speedy to a Nexus S 4G, hoping for better features and reference Android. First thing that happened was the phone upgraded OTA to Jelly Bean (w00t!) and now that I've had it for a day in the usual locations, I'm appalled at how bad signal reception is. Not "how many bars" reception - I'm talking about the browser complaining about no data connection, 1 or 99 asu, just a mess.
Mind, this is in the same locations where I didn't have trouble with the Speedy using the same carrier on the same plan, so it's not Sprint's fault (this time) and certainly they can't be blamed when 802.11 signal reaches one device but not another in the same location.
Does the Nexus S 4G just have a terrible antenna, is it a bad radio build, or other? I love the look and feel of this phone, using it is very nice EXCEPT for this one not-so-minor issue. I'm not in an area with 4G signal (yet) so I'm leaving that radio toggled off.
Details:
Build JRO03R (Android 4.1.1)
Baseband D720SPRLF2
Screenshot: i.imgur . com/ QDZ7l.png
All stock, still locked and unrooted.
(X-posted from Galaxy Nexus subforum, with my apologies to the good people there for the confusion)

[Q] Horrible reception-- new phone development

I've started having some horrible issues with my phone connecting to Verizon networks properly. I used to be able to connect to 4G networks at my house and surrounding area with no issue, but now I've been having the worst time getting it to lock. Currently I'm connected to 3G at -99dBm in my household.
I originally was running stock, but fully rooted, S-Off. I've since switched to trying AOKP and now I've settled on Sinless GPe 3.4.7. I have not seen any real difference between them as far as getting a good connection to the network. I started switching ROMs well after I've noticed an issue, and I have not done much of anything to my phone in the last few weeks that I could attribute to the change. I've never dropped the phone or damaged it in any way.
I just recently traveled across the state and would run speedtests next to my wife's iPhone 5c and 19/20 times she'd show full bars with LTE service while I was either on 3G or no service at all. My phone will connect to 4G sometimes though, it's just not that often.
I read that there may be an issue with my SIM card, so I stopped in and had it replaced. The guy seemed very confused about the state of my phone software, so he blamed any issue I was having on the software installed. Regardless I did get a new SIM card installed. It did not seem to help at all. Can anybody help me? I'd hope to not have to go through the hassle of attempting to get the phone replaced!
Bootloader information:
HBoot-3.16.0.0000
Radio-0.89.20.0321
After rebooting my phone, my phone locked to an LTE signal at -112dBm. It does not speed test at over 3Mbps. Testing my wife's iPhone shows her at -100dBm and she was able to pull 30Mbps down.
There is talk of poor signal reception/speed in gpe threads. Cm based Roms, dunno. Try flashing a sense ROM, do some tests and report back
I recommend clean ROM or any other ROM on Verizon base
I just received my M8 yesterday and am having the same issues (both wifi and LTE) running the latest PA. Going to try something with a VZW base and report back.
wtoj34 said:
There is talk of poor signal reception/speed in gpe threads. Cm based Roms, dunno. Try flashing a sense ROM, do some tests and report back
I recommend clean ROM or any other ROM on Verizon base
Click to expand...
Click to collapse
I reloaded my backup of the Stock ROM and I am still seeing the same issues. It seems to connect sometimes but most of the time it will not. It seems like its just not getting a good lock. I am having trouble even using the phone at my house now whereas I've always had great service here. Doing a speed test now, the phone states 3G service, tested with 705 ping, download of 0.17, upload shot up to 58.19 (which obviously isn't true) and then froze while testing and has been here for over three minutes.
serotoninzero said:
I reloaded my backup of the Stock ROM and I am still seeing the same issues. It seems to connect sometimes but most of the time it will not. It seems like its just not getting a good lock. I am having trouble even using the phone at my house now whereas I've always had great service here. Doing a speed test now, the phone states 3G service, tested with 705 ping, download of 0.17, upload shot up to 58.19 (which obviously isn't true) and then froze while testing and has been here for over three minutes.
Click to expand...
Click to collapse
I would run the RUU and try again, and just see if something got boogered
Confirming as well that the reception isn't the greatest with this phone/radio in the so so service areas.
I live out in the country. Never had good reception with Sprint no matter the phone. Switched to Verizon with an LG G2 and service was fantastic at home for the 7 months I owned it. I moved to the M8 and now phone service is spotty at my house. It's the radio for sure. Wifes verizon moto works great at home as well.
I've had the same issue, updated radios, flash back to stock, and everything else. The radio on this phone IMO is terrible, even when it does get 4G I get like 8 mbps down with 4 bars of 4g. Once in a great while i'll get 18 - 20 down with 5 bars of 4g.
I've been experiencing the same things recently as well. It also affects sending SMS messages. I am on stock too (with s-off). Nothing changed on my phone though, it just started dying.
Never had signal issues. I live out in the boonies too. Signal is strong and switching between 3g and 4g has been smooth. I've been able to download torrents as fast as 5mb/s. Speed test results have been just awesome. As far as signal goes, it's been better than my note 3, DNA, and my wife's droid mini. And this is my second m8. My son has the first and it is the same as mine.
I would look into exchanging them if they don't keep up with other phones. The radio in this phone is actually pretty damn sweet, so if u got a funky one, I'd exchange it. Def try the ruu first, then exchange if that doesn't help.
Sent from my HTC6525LVW using Tapatalk

[Q] anybody else having 4g connection issues?

About 3 weeks ago after installing the update of liquidsmooth 4.4.4 i randomly started dropping to 3g service in places that i normally had full 4g available. It has slowly gotten worse to where if im not on wifi, than the phone is pretty much useless. i normally have full coverage everywhere. so i originally thought that maybe something had gotten messed up on the update, so i did a clean install of liquidsmooth 4.4, and blackbird kernal and same thing still occurred. also tried carbon rom and slimrom, and no luck. so for the fun of it, i went ahead and reflashed the phone back to stock from backups and rerooted it, updated the modems and reinstalled liquidsmooth w/ blackbird kernal, and same thing. i have went through all the mobile networks settings and tried everything and nothing seems to help, idk if that update screwed something up or if its an issue that others have been experiencing as well, or if im just screwed and my phone phone is dying.... any help is appreciated thanks
rideforlife7 said:
About 3 weeks ago after installing the update of liquidsmooth 4.4.4 i randomly started dropping to 3g service in places that i normally had full 4g available. It has slowly gotten worse to where if im not on wifi, than the phone is pretty much useless. i normally have full coverage everywhere. so i originally thought that maybe something had gotten messed up on the update, so i did a clean install of liquidsmooth 4.4, and blackbird kernal and same thing still occurred. also tried carbon rom and slimrom, and no luck. so for the fun of it, i went ahead and reflashed the phone back to stock from backups and rerooted it, updated the modems and reinstalled liquidsmooth w/ blackbird kernal, and same thing. i have went through all the mobile networks settings and tried everything and nothing seems to help, idk if that update screwed something up or if its an issue that others have been experiencing as well, or if im just screwed and my phone phone is dying.... any help is appreciated thanks
Click to expand...
Click to collapse
I'm currently running OmniToad, and ran CM 11M8 for a short while. On T-Mobile at least, with the custom ROMs it's normal to see H+ only when data is being transferred; it will drop back to 3G otherwise. When I ran the stock ROM on the Relay, it would always say "4G" regardless of whether it was in UMTS (3G) or HSPA+ mode. Apps like SignalCheck or CellMapper will tell you which mode it is really in.
On the other hand, if data transmission is only going through as 3G, it could be a phone issue or a tower issue. Is LTE available in your area, or are they just getting it set up? I know when T-Mobile was upgrading the Chicago area to provide LTE, there were a few glitches here and there.
It was stupid for T-Mobile to brand HSPA+ as "4G" but that's a different rant.
Bobby Tables said:
I'm currently running OmniToad, and ran CM 11M8 for a short while. On T-Mobile at least, with the custom ROMs it's normal to see H+ only when data is being transferred; it will drop back to 3G otherwise. When I ran the stock ROM on the Relay, it would always say "4G" regardless of whether it was in UMTS (3G) or HSPA+ mode. Apps like SignalCheck or CellMapper will tell you which mode it is really in.
On the other hand, if data transmission is only going through as 3G, it could be a phone issue or a tower issue. Is LTE available in your area, or are they just getting it set up? I know when T-Mobile was upgrading the Chicago area to provide LTE, there were a few glitches here and there.
It was stupid for T-Mobile to brand HSPA+ as "4G" but that's a different rant.
Click to expand...
Click to collapse
yea LTE has been in this area for quite a while now, i had it with my S4 and it worked perfectly, i never had a problem with the service on the relay either up untill a few weeks ago the internet speed and and data coverage was great, not quite as fast as the LTE on my S4 but it was still more than adequate, i used to use the hotspot and stream netflix on my laptop. now i can usually get a text to send but calls usually fail and if i try and use the internet its impossible. it almost seems like its doing the exact opposite of what it should be doing, as soon as i try and use anything (not while connected to wifi) than it drops coverage to 3g/edge/ or to nothing at all. Im leaning towards the hardware failing side, but i figured i might as well give it a shot and post it and see if maybe i wasnt alone. thank you for your reply.
small note of background on me: first time posting ever in this forum but have been using the tools and roms from it for a long time, so im not a complete noob, but i definitely still have a lot to learn.

[Q] Moto G XT1039 Signal loss problems on stock firmware

Hello! Apologies if I do some dumb mistakes forum-wise and pass as a total noon at this, cause I actually am! Anyway, here's my problem:
So a couple of weeks ago I tried CM12, an unnoficial CM12 by Beeto and CM11 by him too, I noticed a big major flaw with all of them, which made me go back to stock firmware... The cell signal sometimes is just very weak, and I'm experiencing this on the stock firmware too! I go look at battery>cell standby at the end of the day and I notice that it spends about 15% of time without signal, should this worry me? Its just that my friend's phones normally show "0%" or very very close in the same conditions! I'd like to know if there's a way to fix this in any way, either on the Roms I tried or the stock firmware (since I prefer custom Roms anyway)... I'll be waiting for a response! Thank you!
EDIT: My friends are reporting that my messages duplicate sometimes! Really need a fix for this, it's dumb :/
Also with an XT1039 here (rooted stock 4.4.4 w/ bb). Used a Samsung Galaxy Ace II before (CM11) and the signal has similar dropouts with both phones. Wondered if it was the firmware (on my old phone) but as far as I can tell (also tried my sim card with an old SonyEricsson V630) it is my service provider (E-Plus Germany). Moreover we have a pretty white (poor) provider coverage in Krautland (3G and LTE on E-Plus are basically only with full signal strength outdoors in major cities). So I guess nothing to worry about.

Bad Cell Signal

I've had the note 5 for a little over a month now, and the only thing I hate about it is the terrible cellular signal. Even if the phone is showing 4 bars of LTE I still have really poor signal. I'm on the Sprint Note 5 obviously, rooted and running Moar Rom Version 1.2. Is anyone else having poor signal? Does anyone know how to change the PRL, or if its even possible?? Is there anyhting I can do? Maybe get a new phone, lol!!
My service has been better actually. Of course I'm coming from an s3 too.
I have horrible signal to especially indoors, it drop to 3g with 1 bar
migjr415 said:
I've had the note 5 for a little over a month now, and the only thing I hate about it is the terrible cellular signal. Even if the phone is showing 4 bars of LTE I still have really poor signal. I'm on the Sprint Note 5 obviously, rooted and running Moar Rom Version 1.2. Is anyone else having poor signal? Does anyone know how to change the PRL, or if its even possible?? Is there anyhting I can do? Maybe get a new phone, lol!!
Click to expand...
Click to collapse
Settings/system update....you can update your PRL & Profile there
Same issue....phone does not work where my sprint note 2 worked fine everyday....Could have all bars and still not work.

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