Very weak Network Signal - Sony Xperia M4 Aqua

Hi
since a week I've been having some problem with my Network signal.
I have been rooting my device, trying it on different firmwares, I was able to do it. also tried to unlock my bootloader without a success.
I have flashed bunch of different firmwares and now I have noticed that my signal is very very weak and that also include 3g and lte data transfer. Same sim in other phone works well. Other sim cards working well in other phones are also having problems with the signal in my m4 aqua.
Is it possible that i have broken smth playing with the rooting and flashing or is the antenna just broken?
I now have flashed the official software and still nothing is better.

Related

[Q] 2.3.3 fido 2G radio trouble

Hello, I have a strange issue with connecting to the fido network on the latest android.. I live in a valley and the signal wasn't the greatest although it used to always work perfectly .. I could be in my basement etc without any troubles . Now it keeps connecting and disconnecting on me with any subtle movement. (edge /2g), sometimes it doesn't even find the network or sometimes it says that my sim cannot be registered on the network. As an example I have 3 bars but my phone state says emergency calls only..
Although if I go into town and connect to 3G it works perfectly with no disconnections at all... I've tried cleaning the connectors, the sim itself, even swapped the radio itself.. tried different roms even.. tried reflashing the baseband..
There are several 3G tweaks although never came across any 2G ones..
Might anyone have any ideas what I could do? Could it just be that because there has been no official release of 2. 3. 3 for fido or Rogers? I'm truly stumped...
Any help would be truly appreciated.
Thank you..

No network signal

Hi to all.
I put Cofface's cyano into my Redmi 3 a week ago and it worked fine except for the network signal that seemed to me to be weaker than on stable or dev miui rom. Yesterday I don't know what i did, i just switched the network type from the services menu (*#*#4636#*#*) to see the signal strenght of 2g/3g/4g and after doing that, the phone stopped to take signal with my SIM in any network type. So i switched back through MiFlash (and selected flash all option), to the Dev and also to the stable rom, but now I just have 4G working.
I tried to put again CM and i get no signal in every network type, even trying to restore a nandroid backup that i made when the phone worked. I also tried to flash through fastboot the NON-HSLO.bin took from developer rom, but nothing changed. What could it be? Where I live the 4G is not everywhere so most of the time I'll be without signal and it would be really frustrating.
I tried my sim in a Samsung phone and it takes both 2g/3g (the phone doesn't have 4g) , but trying another sim in my phone (of the same carrier) gives me the same result of above : only 4g . While on CM that sim could connect (only 4g) but mine not.
Please help me! :crying:
sorry if i didn't explain myself well, but I'm not english
EDIT: with the 4G i can only surf on the net but i can't make or receive phone calls. I'm giving up on this phone
EDIT2: following some guides I erased modemst1 and modemst2 but now I'm unable to get IMEI and I have unknown baseband
I have the same problem as you (almost)
http://forum.xda-developers.com/redmi-3/help/cellular-network-redmi-3-t3370459
I also have poor reception and can't make any call or receive them on any band 2g/3g/4g and i have this problem since I received the phone.
Did you fix your problem??
I have the same problem of very bad cellular signals.
with the same carrier, when other phones 2 samsung, 1 chinese (cheap unbranded), one very old nokia all have good reception, xiaomi redmi 3 pro is inaccessible from other phones.
today I'll try to install some signal booster apps from thestreet.com/story/11733410/1/7-apps-that-improve-smartphone-reception.html hopping for the best.
if anyone find any solution please update

No cellular network redmi 3

Hello, this is my first post on the forums here.
Iv'e purchased a Xiaomi Redmi 3 last week. It turned on fine and after the first turnoff-turn on it simply didn't turn on again and was stuck on the mi logo.
Iv'e downloaded the latest stable chinese rom and flashed using miflash and the phone started working properly again.
The problem is I do not have a cellular signal. It's either non existent (empty bars marked with 'x'), empty bars or one or two bars at most. Even when there are bars I cannot receive or make any calls (when i call the phone it just rings and the nothing happens).
The sim card itself is new (micro), the phone is new. I tried contacting the cellular company and they said everything is fine on their side, also iv'e tried the sim card on another device and it worked. I tried fiddling with different settings like changing from preferred lte to prefer 3g, adding new vpn, changing the sim card settings through the phone from WCDMA, only LTE so on and so forth and nothing worked.
Iv'e read around the forums here about the whole bootloader unlock, rooting, dev roms. I'm a newbie when it comes to these things and don't know weather I should do there and if it would help my problem.
Oh and last thing, I also verified that the device 3g/4g networks are compatible with the cellular companies in my country (same ones).
Thanks in advance,
Maybe there's a problem with ur set. I didn't root nor unlock the bootloader and reception has been fine for me from the start.
Sent from my Redmi 3 using Tapatalk
So you think it might be a faulty phone?
EDIT: I don't know if this helps or connected to my issue but i have this notification at the top saying "your SIM card isn't activated". I can't link to the pic since i'm a new user.
No one knows how to fix my problem?
I've got a similar problem I think.
I searched until I found that while flashing my IMEIs got lost and so the phone can't register to the networks.
Now I continue searching how to restore the IMEIs...
Derk

unstable signal and nothin I tried worked til now

I bought sprint Galaxy Note 3 unlocked from ebay India. Everyrhing work great in it but one problem and the biggest problem which can't be cured is UNSTABLE SIGNAL. Signal falls from full to no service and again gain network.
Did everything I can. Updated with latest stock rom, which automativally updates bootloader and modem.
Factory reset, cleaning and all, flashing new rom, changing to New Sim and trying every network Sim available.
There is nothing under the sun I didn't do.
I used this phone for a month without Sim and it worked normally without getting overheated. And I speak and chat on social sites like whatsap, Skype and it's works fine.
What is the real problem? Radio band compatability? Hardware? Antenna compatability?
I don't know what but this is the best phone I have ever used. If I can fix it, I would be the happiest one.
Please someone help.
nitin99859 said:
I bought sprint Galaxy Note 3 unlocked from ebay India. Everyrhing work great in it but one problem and the biggest problem which can't be cured is UNSTABLE SIGNAL. Signal falls from full to no service and again gain network.
Did everything I can. Updated with latest stock rom, which automativally updates bootloader and modem.
Factory reset, cleaning and all, flashing new rom, changing to New Sim and trying every network Sim available.
There is nothing under the sun I didn't do.
I used this phone for a month without Sim and it worked normally without getting overheated. And I speak and chat on social sites like whatsap, Skype and it's works fine.
What is the real problem? Radio band compatability? Hardware? Antenna compatability?
I don't know what but this is the best phone I have ever used. If I can fix it, I would be the happiest one.
Please someone help.
Click to expand...
Click to collapse
No one seems to feel like answering
Dial *#0011# key back and key input menu Q and input again 0000. Now open method information to nes and go network selection select automatic. restart ur device ! Done.

OP3 sudden loss of network signal

Hello,
Ive been facing some network issues on my new OP3 (bought 1 month back)
The phone didnt have any problem at all till yesterday when there was a sudden loss of signals in both my airtel SIMS.
OP3 is recognizing the SIM cards but doesnt show any signal. I tried swapping SIMS, my SIMS are working in other phones whereas other SIMS still dont show signal in mine.
However there were 2 instances where i regained signal and was able to make calls while is was at a particular location, but even that lasted for just 20-30 min.
I was using android vers 3.2.4 when this problem happened, tried updating to 3.2.7 (latest) but it still hasnt fixed the issue.
Thought it was a null IMEI problem, but Settings show IMEI nos. of both the SIMS
Tried manually selecting networks, mostly it says cannot connect...sometimes it doesnt do anything
Tried changing preferred networks in *#*#4636#*#* , hasnt helped either
And yes I tried soft and hard resetting too, hasnt helped.
Please do suggest any probable solutions.... Thanks You

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