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Questions tagged [signal]

This tag deals with reception issues, which can apply to a variety of radio signals such as cell radio, WiFi, and others.

24 questions with no upvoted or accepted answers
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Cannot Restore Data for Signal Messenger 4.16 with Titanium Backup

I have backed up and restored Signal with Titanium for years without any incident, up until now. The other day I was encountering a boot loop playing around with an Xposed module. I did a re-flash of ...
3
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0answers
3k views

Cellular radio dead? No carrier signal, “No service”, no mobile networks

I own a Motorola Moto G 4G (XT1040). Original stock ROM, Android 5.1, unlocked bootloader, custom TeamWin recovery, rooted. I only install apps from Google Play, F-Droid or trusted sources. Last ...
2
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0answers
1k views

Acceptable Signal Strength Ranges for 2G/3G and 4G

I have been logging signal strengths on my phone and am trying to understand what ranges can be considered "Good" and "Bad". RSSI is a measure of signal strength for GSM (2G/3G): -50dBm to -113dBm ...
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35 views

Unique signal problem - No one heard of such problem

I am using honor 4x from past 1 year. From last week I am facing a unique issue. SIM 2 signal is not working with Vodafone in some areas of the city (for example it will not work in my home). ...
2
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53 views

Galaxy S4 refuses to gain signal after being disconnected for a period of time

So, the scenario is this: I have a Verizon Galaxy S4 (SCH-I545, Android 5.0.1). One of my work sites is an amazingly effective dead zone. No signal whatsoever. If I enter the dead zone for a few ...
2
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68 views

Can 2 smartphones malfunction if they are hold together in the pocket for long times everyday?

I apologize for my ignorance but I am not very tech savvy. Basically I do a field job and I always have 2 phones in one of those bags you put around your waist. I had 2 Samsung galaxy S2 in the ...
2
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0answers
94 views

How does android (stock) calculate the number of bars representing mobile signal quality?

I am interested in how Android (assuming unmodified AOSP code) calculates the number of bars representing mobile signal quality? Also, if you know the place in code where this is done, I would ...
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57 views

How to register/invite a communication partner in Signal on LineageOS?

I used Signal once on CyanogenMod and it didn't make me think during the registration. Now that I want to recreate a secure communication with my previous communication partner on LineageOS (OS ...
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2k views

Mobile data can't connect (with exclamation mark) but wifi

My phone is Motorola XT1033 dual-SIM (Lollipop 5.1) * have active mobile-data internet packages * can connect and open provider's website (to check package status & quota) * valid APN settings (...
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1k views

Lost 3G/4G signals, 2G works only; factory reset or downgrade or changes in network settings didn't help

I have a Samsung Galaxy S4 LTE working on Lollipop and I completely lost the 3G and 4G signals. I can only use the 2G signal. When I choose in the network options (Only HSPA) there's a stop like ...
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1k views

Allow wifi weak signal connect

I have 2 ZTE Blades (with 512 Mb RAM) and CM7 2.3.7 (Kang) from BurgerZ ROM installed on them. One of them - my girl's - can connect to home and other (public i.e. McDonalds) wifi AP's even if it's ...
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18 views

debugging problem: phonecall recipients complain about audio quality

problem Increasingly, recipients of my phonecalls complain that audio quality is too poor, mostly (but not entirely) when I'm calling from one location. I'd appreciate assistance identifying and ...
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10 views

How can I troubleshoot my oneplus x' signal problems?

I have a smartphone which has no signal at home, and I'm out of ideas on how to pin the problem down. Here are my observations of the problem and what I've done so far: There is neither a phone ...
0
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32 views

Detect blacklisted phone's presence

Okay, so basically i need a way to alert me if someone unwanted is around me. I mean I'd have a list of whitelisted people (devices). If anyone except these are found around i want the app to alert me....
0
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1answer
43 views

Signal Private Messanger - Permissions?

RedPhone and TextSecure was migrated to Signal, but I'm a little bit worried about all the permissions Signal app requires. Why does signal require ex. location and calendar? I have tried to search ...
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63 views

How can I increase my samsung galaxy s4 signal power

I'm having poor signal quality from service provider(the signal for recieving calls, messages etc.) When I check from "about device" section, it usually says around -110 dbm and 2 asu. I have no ...
0
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64 views

Cannot change mobile network Sony Xperia V

I have a Xperia V device which worked fine until few days ago. I still use 3G SIM, and I've enabled WCDMA(preffered)/GSM from settings menu (Settings->More>Mobile Networks->Network Mode). This works ...
0
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264 views

Sony Xperia Z3 - Lollipop - Signal bar disappeared, no SIM would work

I'm experiencing problems with my 2 yo Sony Xperia Z3. Today i've changed the SIM card from polish T-Mobile to Orange (I've been using Orange for alot of time, even this particular SIM, and 1 month ...
0
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1answer
639 views

How to differentiate between a full signal icon and an empty signal icon on my Andriod Device?

My question is not a duplicate of this post as in that the OP is asking for the difference between the network icons for a rooted device whereas mine is for mobile signal icons in an un-rooted device....
0
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1answer
1k views

Samsung Galaxy SHV-160k won't get signal

I bought on ebay a refurbish Galaxy Note N-7000. Once I received it I put my chip and for my surprise there was no signal. After checking It I noticed it has on the back of the phone N-7000 but when I ...
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1k views

My Sony Xperia E keeps losing coverage

Both a Sony Xperia E today and its randomly losing coverage out of nowhere? I always have coverage with every other phone but this phone I keep losing signal! Is this a software issue or can it be ...
0
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4k views

After rooting my verizon Galaxy S3, I have no data or cellular connection?

So, when I first rooted my phone, everything worked fine. I had used CM 10.1 (Or at least some version of Cyanogenmod). Being curious, I wanted to try other ROMs. I then installed MUIU v5. Didn't like ...
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634 views

Poor signal strengths on Samsung S950C Galaxy S Inside the house

I recently bought the Samsung S950C Galaxy S phone from Walmart and am considering returning it. (I wanted the Galaxy SII but was told by a sales person that it wouldn't work in my area (03813)). The ...
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1answer
115 views

How will I know the signal strength of my smartphone's 3g?

How will I determine the signal strength of my smartphone's 3G whether strong or weak?