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GSM Signal weak in Prophet after update. Pls help.....

I had purchased a second hand o2 xda neo. It had wm 5 on it . I updates it with wm 6.1 roms available here.I find that the gsm reception is very poor inside my home.I dont know whether this happened after the update. In my office it is quite good. Even when I am outside i have no problem. Only in my home the signal is very weak. can this be corrected by some registry tweaks or some software. or is it a hardware problem. and if so can i get it repaired. pls help...

what rom are you using and what radio was recommended for use with it. Sounds like a radio issue to me but plz tell me rom and radio. you can experiment using different radios found on the wiki to see whatworks best.
you can flash different radios without loosing data on the device.

I have tried with 2.19, 2.47, 2.69 roms. but no effect. I am trying today 2.07 let me see if that helps. Does IPL/SPL effect the singnal strength?

mmm it might be just one of those things, in that there is interferance within your house (my house is made from granite so reception is very poor), if recpetion is good elsewhere it is unlikely to be radio.
Is there 3G network there? The quality of service on 3G can be unpredictable at best of times.
Signal is not effected by IPL/SPL to my knowledge.

The results of 2.07.20 radio rom. It shows good signal but i feel that it does not update it when the signal is poor. In my office signal is good. So it showed full strength. I went home. There too it showed full strength. when i did soft rest to clear my doubt the signal was poor as in previous roms. Do you think that the antenna has some problem. Can it be replaced. i find an opening above the mirror( near the camers lens) for car antenna. Can this help? if so how?. 3G network is not available in my country(INDIA)

hey,
i think u might have to accept that the signal is just crap in your house... a bummer i know, but if youve tried various radios and signal is good elsewhere, it cant be the internal ariel.
have u tried flashing another rom, more recent build?
Not sure it will help but you never know... at the end of the day, signal is never constant in any one place.

But friend. The signal is good in other phones. If the signal is crap then it should affect other phones too.

I should have also said that the signal is never constant betwenn too phones in the same place. It depends on antenna hardware and the location of it, like signal is reduced whislt making a call if you place your hand and fingers in the wrong place.
I think it unlikely that is a hardware issue if your signal is fine in other areas. Sorry my friend i dont know what else to suggest having tried radios and roms.
The prophet is getting a little long in the tooth now, so be time for an update?

[Q] i9505 stuck out of service

Hi,
I have a weird problem with my S4.
At work I have some areas with really bad coverage so sometimes the phone can stay for a few minutes (or even say 1h) out of service.
This is all normal. The coverage sucks, the building is weird, not problem here.
The problem is that when I go outside where the signal is normally full it does not register back to the network.
Even more it does not even go to "emergency only mode". On a few occasions I arrived back home (10Km + drive) until I realized people can't call me because the phone is out of service.
What is even weirder is the fact that on some occasions, even though the (no service) (/) sign is displayed mobile data works just fine.
My previous iPhone did something similar too - it took a while for it to recover signal after exiting the coverage black spots but never more than maximum 5 minutes.
To me it looks like a radio modem issue and maybe this is aggravated by the fact that my carrier uses the same 2100MHz frequency for both Data and Voice.
I would like to know if any of you have experience anything like this or if there is some app available that can monitor what's happening.

what network and firmware you on and wich s4 variant:thumbup:
Sent from my GT-I9505 using xda premium

I9505XXUBMEA I9505OXXBMF1
It's Europe standard i9505.
Network is Digi.Mobil Romania - but I doubt it's relevant since it can't get even emergency only (other networks).

so... any idea?

Android needs to work on it's notification. No Service and the reception bars only gauge voice coverage. You can test this out by using Service Mode to do a PS Only (data) attach instead of the standard PS + CS (voice) attach. It'll say no service, but data will be fine.
Emergency only, is when there is coverage from other operators but not yours. No service, means your way off the grid.
I've noticed the issue you describe and it's only on some firmwares. Try a newer one and see if you still have the same issue. But you might notice a drop in your battery life because your phone will be scanning all the time. If you're happy with no coverage at work, best to just turn it off and then turn it on when your outside.
Best option is to tell your operator about the lack of coverage. There's someone in charge of stats who get's beaten every time you drop a call. You'll get extra attention if you've got other businesses around you, so let them know that too.

Thanks for the reply.
I am already on the latest firmware and I noticed the same behavior on the firmware before this one.
Unfortunately I can't try out other modem versions (from other FW packages) as that would void my warranty.

avoid said:
Thanks for the reply.
I am already on the latest firmware and I noticed the same behavior on the firmware before this one.
Unfortunately I can't try out other modem versions (from other FW packages) as that would void my warranty.
Click to expand...
Click to collapse
but...what about reboot phone? i know isnt funny but until u find a problem u can just reboot ur phone while u are going out from ur office...or just try to enable and disable airplane mode

Of course reboot works but I am looking for a solution, not a partial workaround.
The most annoying problem is that if I forget to reboot it when I leave work it will not recover network connectivity even if I am in areas with very good coverage, areas where you would expect your phone to work.
It looks like when it decides to give up it does not try again. It is very weird that it also drops the signal from other networks (the "emergency only") even if it's well in their coverage areas. I guess I will have to switch phones... Even if this issue was present for the iPhone too it never took more than a few minutes for it to recover on its own. And I'm not an apple fan

Just to do some brain ecercise...do u keep in power save when u are out of signal ? Its possible that disable check after few tries
Sent from my GT-I9505 using xda app-developers app

It's not in power save. I only use that function in case of battery emergency.

Same problem here
Hello, I have the EXACT same problem here. I am in Argentina.
Now, I've been in the USA for a few weeks, visiting, and while my phone was roaming, I didn't have a single problem with my phone.
Since I came back, 3 days ago, I haven't had any problems in Argentina, either.
Is it possible that something got activated when the phone was registered to another company? (it was AT&T i believe)
If that's the case... maybe you can try putting a sim card of another company and see if you still have the problem?
Please let me know if you still have the same problem or if you got it solved. I would love to know something more scientific about all this.
I don't know if this is relevant, but my compass is off by about 30 degrees. Maybe my phone is defective?
THANKS FOR ALL YOUR HELP YOU CAN GIVE ME WITH THIS
---------------------
avoid said:
Hi,
I have a weird problem with my S4.
At work I have some areas with really bad coverage so sometimes the phone can stay for a few minutes (or even say 1h) out of service.
This is all normal. The coverage sucks, the building is weird, not problem here.
The problem is that when I go outside where the signal is normally full it does not register back to the network.
Even more it does not even go to "emergency only mode". On a few occasions I arrived back home (10Km + drive) until I realized people can't call me because the phone is out of service.
What is even weirder is the fact that on some occasions, even though the (no service) (/) sign is displayed mobile data works just fine.
My previous iPhone did something similar too - it took a while for it to recover signal after exiting the coverage black spots but never more than maximum 5 minutes.
To me it looks like a radio modem issue and maybe this is aggravated by the fact that my carrier uses the same 2100MHz frequency for both Data and Voice.
I would like to know if any of you have experience anything like this or if there is some app available that can monitor what's happening.
Click to expand...
Click to collapse

Hi I have similar issue,
My phone says its out of service or no signal or no network also I checked my sim card in other phone in the same place and it is fine. The i9505 model in ireland meteor provider was running ok until deicided to give a try to another network operator, when I changed the sim card it didnt only catch up the signal from new network provider but also it refuses to catch the old network provider. Funny thing is that I am receiving 3G but no signal bars and no service sign is beeing displayed. I am running latest official BTU (UK) firmware, the phone was never rooted, altough I had to remove the simlock and instal unbranded firmware. The phone worked fine with the newest updates for a month and now I am facing this trouble.
No factory resets nor installing same radio (couple of times) have helped. Also I used odin to instal same firmware (as it has locked bootloader) so I cannot revert back to other stock firmwares, but still no joy.
hope that someone faced the same problems and describe how to solve this issue. thanks

problem with note3 sm-n9005 signal

hello,
i have a very annoying problem
i just bought my note3 2 days ago and i found out that it has a very bad signal reception in my home although the signal has two and sometimes 3 bars in it!! but it says "emergency calls only"!
the thing that worries me is that, i had note1 and the signal reception was way better, i also tried many mobiles and they all good!!
so i wanted to knew if there is anything i can do to solve this problem?
i'm on lollipop 5.0
also from egypt.
many thanks in advance

Return to the store and ask for a replacement .
Have you tested the signal in other places ??

the device is an international version with no guarantee so i can't replace it.

Check your APN's [Settings] [Mobile Networks] [Access Point Names] and make sure the correct one is selected. You might need to contact your provider. Also check [Preferred Network] is not just set to (say) 3G and your provider doesn't provide that one.
Does Wifi work OK? You may need to update your firmware - I'm presuming you are still on the OS the phone came with. It's possible the phone was built for somewhere else and the Modem is not right for Egypt. (unlikely but possible)
There's an app on Play Store called Phone INFO (samsung) that will give lots of details about just what your phone is.

Low GSM signal 📶

I am running a custom rom Arya 8.1
I flashed the BL that the creator provided
But now I'm getting very low signal even at areas where i had good signal before.
I attached a screen of what I'm running now
I am not sure what to look for exactly, modem? Bar bands?
Any suggestion will be appreciated.
Regards

Make sure that the modem and all those stuffs are actually updated. Just go to dialler and press *#1234# and see whether you are running the latest Modem and CSC. And also make sure that this isn't temporary. I mean it could be your mobile carrier company who is having the problem of low signal for a day or two! I have been using Arya for over 4 months now, never noticed any signal related problem at all!

[QUESTION] What affects the phone signal?

Hi! I have the US 4GB 64GB version of Moto G5 Plus which is not avaiable here in Brazil.
Gonna try to be clear... but sorry for my bad english...
The fact is that I was on debloated Nougat (bootloader unlocked and rooted) and was experiencing very poor signal in several situations... the most notable was when I was on the subway and since this phone is veeeeery popular here I could see a lot of people using this phone, browsing, facebook, instagram etc. but, even though the network signal in status bar was full or almost full for me, it was like I had no data at all..
I then upgraded to Oreo Soak Test #3 yesterday and today I noticed that now in the subway, I have no data at all, there is no 4g/3g symbol next to the signal symbol...
So the question... what affects the phone signal? What can I do to solve this issue?
Oh, my carrier is maybe the best in my region when it comes to coverage
Thanks in advance!

EFS affects Signal, and IMEI
Hello,
You know English well (comparing to my bad English).
Loss of Network (Data), and IMEI is caused by deleted EFS.
EFS is deleted in the process of Installion of some custom roms (including stock rom).
Rostoring EFS on Oreo soak test won't work for several reasons (for me it only worked on Nougat).
Restore Process:
Must Have:
1. Andorid 7.0 Stock Rom (Fastboot) (Twrp flashable won't work)
https://forum.xda-developers.com/g5...irmware-npn25-137-67-5-fastboot-t3694738/amp/
2. EFS Backup (must be backup from when you had signal)
3. Optional Magisk or SuperSU
https://www.xda-developers.com/how-to-install-magisk/
Step 1: Flash Stock Rom
Step 2: Flash Magisk (optional, but recommend)
Step 3: Restore EFS
Finally Enjoy!

MitenP5 said:
Hello,
You know English well (comparing to my bad English).
Loss of Network (Data), and IMEI is caused by deleted EFS.
EFS is deleted in the process of Installion of some custom roms (including stock rom).
Rostoring EFS on Oreo soak test won't work for several reasons (for me it only worked on Nougat).
Restore Process:
Must Have:
1. Andorid 7.0 Stock Rom (Fastboot) (Twrp flashable won't work)
https://forum.xda-developers.com/g5...irmware-npn25-137-67-5-fastboot-t3694738/amp/
2. EFS Backup (must be backup from when you had signal)
3. Optional Magisk or SuperSU
https://www.xda-developers.com/how-to-install-magisk/
Step 1: Flash Stock Rom
Step 2: Flash Magisk (optional, but recommend)
Step 3: Restore EFS
Finally Enjoy!
Click to expand...
Click to collapse
thanks lol
but nonono
I'm not talking about that but bad signal strenght... I can use my phone, but in certain places, like the subway, the internet is so slow that it is unusable... but, as I said, I can see a lot of people even playing Clahs Royale with no problem

I think this phone is generally weak in this category. My wife has a Samsung S6 active and we both use Tmobile. In similar locations hers gives much better reception.

luizlee86 said:
Hi! I have the US 4GB 64GB version of Moto G5 Plus which is not avaiable here in Brazil.
Gonna try to be clear... but sorry for my bad english...
The fact is that I was on debloated Nougat (bootloader unlocked and rooted) and was experiencing very poor signal in several situations... the most notable was when I was on the subway and since this phone is veeeeery popular here I could see a lot of people using this phone, browsing, facebook, instagram etc. but, even though the network signal in status bar was full or almost full for me, it was like I had no data at all..
I then upgraded to Oreo Soak Test #3 yesterday and today I noticed that now in the subway, I have no data at all, there is no 4g/3g symbol next to the signal symbol...
So the question... what affects the phone signal? What can I do to solve this issue?
Oh, my carrier is maybe the best in my region when it comes to coverage
Thanks in advance!
Click to expand...
Click to collapse
wastedige said:
I think this phone is generally weak in this category. My wife has a Samsung S6 active and we both use Tmobile. In similar locations hers gives much better reception.
Click to expand...
Click to collapse
The problem isn't the phone it's the rom your using. Example For me: with VOLTE (Verizon) From my house
Pixel Experience gives 40MB Down and 33MB UP
Stock Rom gives 20-30MB Down and 20 UP
---------- Post added at 11:50 PM ---------- Previous post was at 11:47 PM ----------
luizlee86 said:
Hi! I have the US 4GB 64GB version of Moto G5 Plus which is not avaiable here in Brazil.
Gonna try to be clear... but sorry for my bad english...
The fact is that I was on debloated Nougat (bootloader unlocked and rooted) and was experiencing very poor signal in several situations... the most notable was when I was on the subway and since this phone is veeeeery popular here I could see a lot of people using this phone, browsing, facebook, instagram etc. but, even though the network signal in status bar was full or almost full for me, it was like I had no data at all..
I then upgraded to Oreo Soak Test #3 yesterday and today I noticed that now in the subway, I have no data at all, there is no 4g/3g symbol next to the signal symbol...
So the question... what affects the phone signal? What can I do to solve this issue?
Oh, my carrier is maybe the best in my region when it comes to coverage
Thanks in advance!
Click to expand...
Click to collapse
wastedige said:
I think this phone is generally weak in this category. My wife has a Samsung S6 active and we both use Tmobile. In similar locations hers gives much better reception.
Click to expand...
Click to collapse
Your results aren't accurate.
Get two of the same phone ex. iPhone 8
One will always have better Network speeds then the other, even if their new.
---------- Post added at 11:50 PM ---------- Previous post was at 11:50 PM ----------
luizlee86 said:
Hi! I have the US 4GB 64GB version of Moto G5 Plus which is not avaiable here in Brazil.
Gonna try to be clear... but sorry for my bad english...
The fact is that I was on debloated Nougat (bootloader unlocked and rooted) and was experiencing very poor signal in several situations... the most notable was when I was on the subway and since this phone is veeeeery popular here I could see a lot of people using this phone, browsing, facebook, instagram etc. but, even though the network signal in status bar was full or almost full for me, it was like I had no data at all..
I then upgraded to Oreo Soak Test #3 yesterday and today I noticed that now in the subway, I have no data at all, there is no 4g/3g symbol next to the signal symbol...
So the question... what affects the phone signal? What can I do to solve this issue?
Oh, my carrier is maybe the best in my region when it comes to coverage
Thanks in advance!
Click to expand...
Click to collapse
wastedige said:
I think this phone is generally weak in this category. My wife has a Samsung S6 active and we both use Tmobile. In similar locations hers gives much better reception.
Click to expand...
Click to collapse
Your results aren't accurate.
Get two of the same phone ex. iPhone 8
One will always have better Network speeds then the other, even if their new.

devvshukla said:
Avoid thick covers and cases for mobile, if your cover has metal on it then there is a good chance it is interfering with signals. Usually, having poor signals is more of a hardware issue than a software one.
Off topic - I read somewhere that some criminals keep their communication devices inside closed packed Lead Boxes. Those block nearly all type of signals, be it related to Wifi, Bluetooth, Cellular or GPS.
Click to expand...
Click to collapse
But that nothing to do with no signal inside subway.
Edit: Metal won't have a major affect on the signal, depending on the phone to metal ratio. Similar to magnets.
Not to be rude but "was using debloated stock then changed to Oreo stock" Has everyone knows signal is bad on roms other then the original (which no one has)..
I forgot to ask you what signal do you get?
LTE, 4g, H+, H, 3g, 2g?