Mobile Signal issues? - Galaxy S 4 Q&A, Help & Troubleshooting

Hi, I own a i9505 and I am trying to find the best ROM for best signal.
With stock kitkat, I was getting about 1 or 2 bars in my house, same for lollipop (modem updated).
However, with AOSP or CM12/12.1, I get much more, about 4 or 5. But with stock, I get 30mb speed with 4g. (with 2 bars).
But with AOSP/CM, I get 15mb roughly even with 5 bars.
Any help as this is an annoying issue?
Thanks.

Related

[Q] cant get a signal to save my life

ok so, i bought the vibrant about a month ago, i always had good signal on every other phone i have ever had at both my work as well as home, i called tmobile, they said they had not heard of such problem and sent me a replacement.. still no signal, im constantly dropping calls and basically cant use my phone anywhere. i am new to this forum thing, any ideas? please advise, my phone is not rooted..
Do you live close to Tempe by any chance?
close to tempe
i actually do llive close to tempe, im in mesa..
Mesa? AZ? I don't live in Mesa, but live close by. I have had some dropped calls but typically I get great signal. Even when I have 0-1 bar, I have 3G ~1 Mbps speeds; otherwise I drop to EDGE and I can still use my phone.
I am especially surprised you are having the issue in Mesa - I get ~5 Mbps speeds there so it is safe to say I get great signal.
Update your phone to one of the JI series of firmware. I'm on JI6 and it has been the best for reception..
There is a bar display issue in JFD. Updating to JIx will fix this and improve reception a small bit.

[i9505G] Signal/Reception problems on AT&T

Anyone here had any decrease in signal/reception strength when switching to the S4 GPe and running on AT&T?
I used to have 4/5 LTE bars in my home constantly on my iPhone 5 but now I only get 3 bars top (usually only get 1 or 2 bars indoors). I have switched to the correct LTE plan and got the appropriate SIM card, plus I have factory reset my phone but nothing has worked. Any help would be appreciated. I just hope that I don't have to return the phone. Thanks
How's the call quality? Signal strength bars do not reflect actual true signal strength. My older Motorola shows almost full strength signal while the GS4 only shows one, two, and rarely 3 dots but the calls are clear on the GS4. I am not saying this is alright; just merely asking about call quality.
Pretty good actually. No problems whatsoever with call quality or dropped calls
Sent from my GT-I9505G using Tapatalk 4 Beta
After a day or so the phone now only shows the H instead of LTE. But signal "strength" is better having H only. Could it be that my LTE signal isn't strong as I thought it was? I will call AT&T to see if my account is provisioned correctly (even though they assured me it was) after the SIM change.
Sent from my GT-I9505G using Tapatalk 4 Beta
DP

Signal issues with KK 4.4.2

I'm having an issue with Kangakat 4.4.2 v6.0 version on my i337 GS4.
My signal meter on LTE randomly drops to 1 bar, and even sometime it will drop to no bars which show a 0 dBm. Then go back up to 3 or 4 bars.
This happens at my house, where using a Jellybean 4.3 GE rom don't do this. Matter of fact today I had my wife's iPhone 5 sitting right next to mine, and my phone was dropping to 1 bar at -89 dBm, then to 0, all the while my wife's iPhone had full bars of LTE.
I've tried the MF3, MJ9 and MK2 basebands and all do the same thing, although MF3 seems to do it a little less. I don't have this issue using a stock 4.3 ROM I've been using for awhile before trying out 4.4.2.
Anyone have any clues and came across this?

Stock vs Custom Rom signal is low

Is ti common for the signal to be lower on a rom vs stock rom..
Im using cloudypro and my signal is very low and sometimes actually alot jumps from lte to H to 3g
When i was on stock i had a constant 5 bars and so does my wife s4
Its always the case for me. I think its just cosmetic though, I haven't noticed a drop in signal while talking

WiFi signal seems poor

My WiFi seems poor compared to my note 3 and my wife's GS4. I'm in the same room as the router (about 3 metres) and I'm getting 3 bars at best. I need to be right next to the router to get a full signal.
I need to test some more today but my 3g/4g was dropping a lot yesterday too. Driving 80 miles in areas I previously had a good signal.
I wonder if my device is faulty or the radio is bad compared to my note 3, anyone have similar?
Having the same issue..
In CyanogenMod no problem, but only for 2..4 GHz. On the 5 GHz signal is weaker.

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