[Q] GPS after cell signal loss - T-Mobile LG G2x

I'm with a new carrier that has weak signal in some parts of my town.
I often get signal loss. One issue is automatically getting signal back, which is flaky.
But a bigger issue, which I have found on every G2X ROM I've tried, is that once I lose network signal, I cannot get the GPS antenna to come back on, whether or not cell signal returns.
Does anyone have similar experiences? It seems unlikely to me that I am experiencing a hardware bug.

Related

Signal

My brother has been offered a sensation XE as an upgrade. I told him that the senseation phones experienced big signal fluctuation that made me sell mine and replace with the galaxy s2.
Did this ever get resolved or is the signal issues still a problem?
mark_hopley said:
My brother has been offered a sensation XE as an upgrade. I told him that the senseation phones experienced big signal fluctuation that made me sell mine and replace with the galaxy s2.
Did this ever get resolved or is the signal issues still a problem?
Click to expand...
Click to collapse
Hi,
Signal is largely dependent on the radio/ril combination you have on your phone,and your location.
If you are experiencing difficulties,post your problems on THIS THREAD
If you're talking about stock phones, yes it is still a problem depending on network coverage in your area. For example, I'm in a rural setting and I use O2, I can be in my front room and see 3 signal bars, then moments later I may lose the signal completely. I know that the signal will likely reconnect, but it is rather annoying not being sure if you do have a signal. My son's GSII doesn't have this issue.
If you're in a location with a strong signal, you're unlikely to experience this problem.
Cheers guys I'll let him know.

[Q] MB865 (Atrix 2) Hardware Question/Help Needed

My MB865 (Atrix 2) started losing signal and restarting. When it does re-acquire a signal, it is always a strong signal (5 bars ~ -65-dB). The problem has been getting worse and it is getting more difficult to acquire/retain a signal. Often the phone will spontaneously re-start as well. The re-starting seems to happen more frequently when I am charging the phone or do not have a signal.
My son has the exact same phone with the exact same configuration, and his is working perfectly. Side-by-side, he will have 5 bars while I'm not able to get a signal at all.
I have been told that this is likely an antenna issue, but I'm truly not sure.
Could a faulty antenna cause the re-starting issue described above? If it is a faulty antenna, is this something I could replace myself? I was unable to turn up anything useful in my search for a replacement antenna for this phone, so I'm not sure where to even get one.
Thanks in advance.
I am having nearly same issue with my atrix 2
I cant make or receive any calls/sms
The signal reception have decreased a lot.
I would like to know what you did to fix the issue
K****ijs said:
I am having nearly same issue with my atrix 2
I cant make or receive any calls/sms
The signal reception have decreased a lot.
I would like to know what you did to fix the issue
Click to expand...
Click to collapse
I bought a different phone.

Weak Wifi reception

A few users reported weak WiFi signal strength on N5. Good WiFi signal strength is very important for me and this is one of things I like on my current SGS, so Im wondering how good is Wlan strength on yours N5 ?
Also Androidizen posted video about WiFi problem:
I received my N5 yesterday and i am facing this weak WiFi signal problem.
I compared it with my Iphone 5.
i was 8 feet away having my back to router, iphone 5 showed full strength signals while N5 showed 3/4 signal strength.
Ive had my nexus 5 for a few days now, and the main thing that is annoying me is the wifi, the signal is so flaky one minute im on full bars, next minute its on 1 or 2, then back to full. this can be in line of sight with the router. Ive tried a few routers at home and at work, same issue. I have tried an iphone, nokia and samsung and they all have a much better range. I'm contemplating taking this back now and getting a refund, as i don't think its acceptable. does anyone else get this constant fluctuation?
I have also noticed when you put your hand over the top of the phone the signal can drop completely. Not taht i do this, but other phones i have do not suffer with this.
i take it not many people are seeing this issue, are others with the phone able to check the wifi range and fluctuations in comparison with other devices. How can it go from full bars to 2, then back to full constantly when other phones are solid. Trying to work out if its worth exchanging for another. Speeds just change from say 72mbs to like 19mbs non stop. Thanks
Side by side with my Nexus 4 I'm getting the same strength and speed.
Sent from my Nexus 5 using Tapatalk 2
mintume said:
I received my N5 yesterday and i am facing this weak WiFi signal problem.
I compared it with my Iphone 5.
i was 8 feet away having my back to router, iphone 5 showed full strength signals while N5 showed 3/4 signal strength.
Click to expand...
Click to collapse
Do not use the bars when comparing signal.
Download an app that shows you the actual signal level in dbm. Bars can be set to whatever the developer wants. I could make you have full bars at -110 dbm which would be a useless connection, but still show full bars. For the most part, you should disregard them.
Would be possible to boost WiFi reception with a software tweak? Even if Google doesnt provide a fix, could be WiFi signal strength increased in custom roms? I hope some developer will know to answer this.
I have chance to get N5 32gb next week and I really want it, but since Im a lot in other countries, good WiFi signal strength is very important for me (to connect on WiFi hotspots)
Thanx
Is it an issue of signal strength only? Does it ever disconnect you completely? "Strength" would be much less of a concern than disconnects, now THAT would be annoying.
Spitfire said:
Is it an issue of signal strength only? Does it ever disconnect you completely? "Strength" would be much less of a concern than disconnects, now THAT would be annoying.
Click to expand...
Click to collapse
I have read that some N5 owners lost WiFi connection when they were about 10 m away from router. This is unacceptable IMO. I hope software tweak can boost WiFi reception.
I confirm the weak wifi too.
signal
i have nexus 5 16gb white, signal is very very weak!!! i have N4 and GN and have perfect signal!
the problem of weak wifi, is all about the nexus? we have to wait for a fix or should call google and give it back?
I'm facing the same issue. I'm few feets from AP and I'm getting weak and unstable signal. The worse thing is that it is not picking up signal from my main AP (Edimax) at home... It does not "see" the network at all even all other devices at home use it fine.
Very weak signal with this phone, I got full bars on my previous phones in my office but now only 2 bars. If you put your hand near the top of the phone the signal completely drops.
Same issue here, very weak reception. No issues with may tablet or laptops, but Nexus isnt getting good signal. White 32GB.
Yup weak signal. Initially it didn't want to connect to 3g but that was fixed with the service menu. And now I am noticing weak WiFi signal.
I'm guessing this has to do with the antenna.
Its easy to open the phone I'm going to crack it open and see what I find.
Have you folks tried going into your N5's WiFi settings & look under the Advanced submen (press the 3 dots on the lower right of screen)
Tried turning off 5 Ghz band if your router is on the typical 2.4 Ghz band - and if you have the newer dual band N router, enable your 5 Ghz band - could be interferences from other nearby devices or AP ??
Install the free app, Wifi Analayzer from Play Store & run it - take a look at your AP's signal strength, try switching to a less congested channel since the airwaves are shared, regardless which of the 11 channels you are defaulting to ...
Mine is running just fine, -60 to -50 dBm with the N home router behind 2 sheetrock walls.
Compared to my Galaxy Nexus and Galaxy SIII, I have superior Wifi Signal on my Nexus 5 to a very positive surprise...however network drop outs for Cellular connection is quite annoying...
guys try to disable the wifi optimization under advanced wifi setting and set the band to 2.4 . it worked with me :good:
I have to use my 2.4GHz connection because the phone didn't work at all on the 5GHz.
Sent from my Nexus 5
I have this problem too. Sometimes my signal is so weak that it disconnects with the router and falls back on 3G.
I tried everything. Just went into Safe Mode, but Wifi is still weak, it doesnt matter.
I tried to only use 2,4GHz and turned Wifi optimalisation off. Still the same weak signal.
I tested it with the app "Wifi Analyzer" If I stand next to the router it gets about -50dBm. Then I tested it with my brothers Galaxy S2, he got -40dBm. Thats a difference of 10dBm. -40dBm is a stronger signal.
We tried it at the 2nd floor, and he got a better signal again. So it's obviously my Nexus.
Android 4.4.2, stock, no root or something. Google come with a solution please. My previous phone had the same ****ty Wifi (HTC One X).

HTC One S Signal Fix?

I have an unlocked HTC One S that has major signal issues. When the phone boots, there's no service for a few minutes before it decides to actually kick in. WiFi and everything seemed to not work but after putting it into "Best Wi-Fi Performance" mode it seems have resolved. But the cellular signal drops constantly. I've read that this is quite the common issue with these phones and am wondering how they are so popular if this is the case. Regardless, has anyone discovered the reason for the issue or some sort of jimmy rig to fix this issue?
Phenomin said:
I have an unlocked HTC One S that has major signal issues. When the phone boots, there's no service for a few minutes before it decides to actually kick in. WiFi and everything seemed to not work but after putting it into "Best Wi-Fi Performance" mode it seems have resolved. But the cellular signal drops constantly. I've read that this is quite the common issue with these phones and am wondering how they are so popular if this is the case. Regardless, has anyone discovered the reason for the issue or some sort of jimmy rig to fix this issue?
Click to expand...
Click to collapse
please mention your hboot , radio , Rom.
I'm having a similar problem. Occasionally I get a signal strength of 2 billion dBm. (255 asu)
What seems to be alleviating a lot of it is a set of mods to build.prop.
ro.ril.fast.dormance.rule=1
ro.ril.gprsclass=1
ro.ril.hsdpa.category=1
ro.ril.hsupa.category=1
ro.ril.hsxpa=2
These settings are the absolute slowest possible, but they do seem to be improving the connection quality.
Same problem to me. I have a new S4 from 2 days, bought "refurbished" from aliexpress at a good price. It's new, looks great but signal and in call audio quality is weak.
Phone works good on "GSM only". If i set GSM/WCDMA, I lose signal and phone stops itself.
I started with stock 4.0.3, phone stops itself.
Updated to 4.0.4, phone doesn't stop but no signal with WCDMA enabled.
Then I unkocked, rooted and tried Miui V5 (4.1), same problems.
After installing Maximus HD, I had signal also with GSM/WCDMA, but immediately I installed newer firmware and signal was lost. (Works only on "GSM only").
Tried also Beanstalk, CM11, MagioRom, SourcE, Slim kat. No signal with GSM/WCDMA.
I don't know if works with Maximus with older firmware, or it was only a coincidence. Don't know what firmware was at that moment.
Went to a bigger city and 3g worked excellent.
Returned back to home, no signal with 3g enabled.
I guess my phone is weak at signal.

No GSM signal, 3G/LTE works

Hello guys and girls,
after experiencing some GPS problems (loss of signal on the road and/or late fix) I did the fix found on youtube (Where you place a bit of paper/tape under the GPS antenna contacts). It worked just fine, my GPS fix is now happening faster and I did not lose the signal ever since. But I am now facing some (weird?) problem: My GSM connection (GRPS, EDGE) is really really bad. In my room I don't get any signal at all, outside I get like 1 out of 4 bars of signal strength, but I lose it after a few seconds. I normally have 4 out of 4 bars in my room. BUT: My 3G connection works fine, 3G, LTE, same connectivity as before.
My friends phone (same carrier) does get the full GRPS/EDGE connection in my room, so it's not the carrier having problems. I didn't do any updates or anything in the last weeks. It would be a huge coincidence, if a software bug happened while I fixed the GPS problem, so I assume it's a hardware related thing?
How might I fix that, what possible solutions are there?
Tried the following so far:
Restarting multiple times, with our without airplane mode
Re-inserting the sim-car
Switching between LTE only, GSM/LTE, GSM only
Flashing new/other modem
Replacing the speaker/antenna-module
-> nothing changed
out of sheer curiousity, and after reading your post, im stuck wondering.. why do you want or need your gprs and edge connection when your 3G/LTE is fine? data speeds are very slow, and drain lots of battery using anything internet or download related..
Yeah, sure, 3G/LTE is better and coverage is really good where I live, that's why it's not an emergency for me, but it's very important to get it back to work properly.
I know at least 2 situations where I really need GSM (GPRS,EDGE):
1) At work (huge metal building, no 3G/LTE, only GSM) -> I can't call, text or do anything with my phone (don't worry, I am allowed to do so and no, there is no WiFi)
2) On the road, especially the german autobahn has large areas where there is no 3G/LTE coverage, so I can't use my navigation-software properly and can't respond to calls or whatsoever
So all in all: GSM in really important for me. Please help me. :crying:
ahh.. I see.
and your GPRS/edge was fine before the GPS "fix"? maybe something got loosened?
Before I did the fix it worked perfectly fine. Directly after I did it, the gsm was gone so I figured that I somehow damaged the antenna. But since I replaced it and nothing changed I am not sure what to do now. Are there other antennas, are there other modules that influence gsm, that I might have damaged or loosened?
That's what can happen when you tinker with guts of your phone. You risk damaging or messing it up. Sorry, I don't mean to sound like a jerk.
Sent from my Nexus 5 using XDA Premium 4 mobile app
Yes, dave2metz, I know. I was fully aware of that when I opened my phone for the first time to fix the GPS thing. But I am not here for moral advice.
Any ideas how I could fix my problem are highly appreciated!
Edit:
Just checked: The sim-card is not the cause of the problem either. I would really appreciate some good ideas guys..
No idea what I might try?
My best guess is that this is a hardware related problem. But how does one fix it? I replaced the antenna (the bottom thing), nothing changed. So that specific antenna was not the cause of the problem.
Are there other antennas?
Are there antenna-connections that I could check?
Any other hardware things that I might check?
Anything that might have lost the physcical contact inside the phone because of that GPS fix?
Could it, against all odds, be a software problem?
Please, I am really in need of a working phone. If I can't fix it I need to replace it sooner or later because GSM is essential.
If anyone can provide me with an idea or something that leads me to a fix, I will reward you (amazon gift-card or whatsoever).
Cheers,
.yasu
Did you figure it out?
.yasu said:
No idea what I might try?
My best guess is that this is a hardware related problem. But how does one fix it? I replaced the antenna (the bottom thing), nothing changed. So that specific antenna was not the cause of the problem.
Are there other antennas?
Are there antenna-connections that I could check?
Any other hardware things that I might check?
Anything that might have lost the physcical contact inside the phone because of that GPS fix?
Could it, against all odds, be a software problem?
Please, I am really in need of a working phone. If I can't fix it I need to replace it sooner or later because GSM is essential.
If anyone can provide me with an idea or something that leads me to a fix, I will reward you (amazon gift-card or whatsoever).
Cheers,
.yasu
Click to expand...
Click to collapse
Did you end up figuring anything out for this? I have something along the same lines. I dropped my phone and smashed the screen. I was able to get a guy to replace the screen portion of the unit, but immediately after I got it back it had no cell reception. Rebooted came, back thought everything was cool.
After a couple weeks I notice my phone has lost reception occasionally. It's now gotten worse, I used to be able to reboot it about 5 or 6 times and then it would randomly come back. I've even had it come back without performing a reboot on its own.
I ended up taking the whole thing apart, reseating everything after having a day and half span where I have been unable to get it back and boom reception came back. Thought it was his repair job at that point, but it has since dropped the signal again and I can't get it back. Yesterday even I was showing LTE signal changing from low to strong etc, but my network was still down as I couldn't perform a search, maps, or anything.
I have my phone apart again. I've checked all the connections over and over and wondering what else to look for or try to replace. True my impact could have damaged a component on the mainboard, but my phone works fine in all other areas. I could replace the antenna wires and the antenna/speaker module, but I'm not sure it just a reception problem.
My phone also boots into airplane mode when it has no signal, but turning it off does not restore the connection or anything. Rebooting it puts it back into airplane mode. *#*#4636#*# shows my radio is off. Thinking it's a short or something somewhere, but I doubt I'll be able to fix it in that case - at least without a mainboard?
That's my other question, what part need to be replaced for experiencing no network and its not the antenna or antenna wires? Is the mainboard? Sister board? Currently researching teardown as this phone is modular and I'm sure I could source the part off ebay or something.
Hi,
There's one antenna for 2G/3G/4G so I think if this problem was caused by hardware, it would affect overall connection to mobile network.
I think that this might me software-related problem but actually can't figure out which. Only thing I'm currently thinking of it that your phone has problems with connecting to certain GSM band. For example in Europe are 900 MHz and 1800 MHz standard for GSM.
Lower frequencies bring you better coverage. Your phone might have trouble with connecting to them and automatically selects 1800 MHz layer.
If you are able to get another phone with SIM of the same network provider, I recommend you to download any networking app and compare data about cells. Mainly CID number. It's unique identifier of each cell in an area.
If both phones are connected to same cell (CIDs are equal), you have to compare RSSI values. Lower means better signal. RSSI is defined as a negative number in an interval of <-51; -113>. So -75 dBm is better than -89 dBm. In one place should be difference about +/- 5 dBm.
Reaching slightly different RSSI numbers while connected to same cell in same place might mean that your phone really have problems with radio.
hey mate,
My wife phon is having the same issue 4G works, 3G sort of works, 2G nothing.
[Did the GPS fix on my wife's Nexus 5 (and mine) also]
swapped sim, used another telco same issue.
when into service menu did *#*#4635#*#* , click the 3 dots, select radio band - only see USA band.
While my phone had automatic, usa bad , usa band, japan band.
she is running stock rom with unlocked boot loader, I am on CM11 but doubt that should make any difference.
if I work out what is going on will report back.
nexus 5 3g 4g damaged
hello guys?.. my htc nexus 5 got wet and i notice the signal strength got lost. when i open it up i notice the lines on the antenna got damage. how do i repair it? or should i replace it with new one? Pls help !! 
Is issue still remaining?
Hi. I am having the same problem. Could anyone find a fix for this?
My GPS was and is fine. I didn't do the gps fix, but I have replaced my battery and I think it happened after the replace...

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