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Hi
I recently did a rebuild on my one s to replace the vibrate motor/ribbon cable & also inadvertently resolved my touch buttons not working
Since then unless the phone is in a very strong signal area (we have a femto cell in the office which it connects to fine) it gets nothing at all - my sim works without issue in other phones so that's not it
I understand that the GSM antenna is in the lower section of the phone, I've checked all the gold contacts and the wire running down from the mainboard to this daughterboard, disassembled and rebuilt etc but the issue persists.
My question is, is it worth going through the radios and flashing to see if thats it - or could it be the replacement part was faulty?
Any advice or things to try would be appreciated
Cheers
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...
Hi everyone,
I have recently cracked my screen and replaced it myself using youtube tutorials. I have (somehow) completed the task although I had many problems with the two side cables (black and white antenna cables, I hope you know what I mean as I don't know their proper names). Specifically, I wasn't able to slide them down the channels intended for that and at the same time I wasn't able to connect them properly in the jacks were they need to be plugged in. I thought I have somehow did it but it seems I did not do it properly as I do have frequent ups and downs with the network signal, I lose it constantly in places where I used to have full network signal and I can't reach LTE at all, there's no connection at all when switched to LTE. There's signal only when 3G is ticked in settings and internet signal remains to E, rarely if ever moves to H.
At the same time, Wi-Fi is good although I feel it worked better previously, but that can only be my imagination working.
So, I think it has something to do with those cables, as those were my main issue during reassembly. Is there any advice anyone can give me. They don't seem broken, but I can't fit them in the channels and in the jacks properly. Would it work if I put something like a sticky paper in the channels to hold the cables down. Also, is there any trick for connecting them in the jacks or I just need to be precise?
Or, is the problem something completely different?
Any advice would be much appreciated as my phone is rather new and I absolutely love it.
Thanks in advance
Those mini-coaxial sockets can be a bit harder to push in at times - just get a pair of good quality tweezers , get a good grip on the connector and push it down with some other tool. I can guarantee it is going to go in . If they don't make good contact you are either going to get intermitent network , or a very week network signal .
I have a nexus 5 "hammerhead" running the latest version of android marshmallow 6.0.1 .
My issue is, the device wont detect any network signal. At first i thought it was a software issue so I downgraded to lollipop and kitkat but the same issue still exist.
All I see is the network provider name, and beside it 'No Service'. I really dont know what else to do, unless this is a hardware issue. Anyone here had experienced the same issue and have it solved? Or am I just going to have to turn this device into a tablet. -___-
p.s. The screen broke and was replaced, and after return of the phone this happened. Is it that the phone repair guy damaged my device?
Plz help!?
Is the imei okay? Are both of the antenna wires properly connected?
audit13 said:
Is the imei okay? Are both of the antenna wires properly connected?
Click to expand...
Click to collapse
yes i can clearly see the imei #. ..and about the antenna wires, yes both are connected but just that the white wire seems abit off. but i tested the continuity and it seemed to work.
The imei is the same before and after the repair?
Did you remove the motherboard and examine it for signs of damage or alteration?
audit13 said:
The imei is the same before and after the repair?
Did you remove the motherboard and examine it for signs of damage or alteration?
Click to expand...
Click to collapse
Yes I did. Motherboard checked out ok. Just can't understand why no signal tho. Wifi and Bluetooth works well. And to answer your question, yes imei # is the same.
Also, I was told that the phone fell before the screen replacement and that's when the issue started.
Even if the antenna wasn't connected, it should be able to pickup some amount of signal. If that's not the case then I'll just have to replace the cables and the lower PCB also the speaker area.
Maybe the drop caused a loose connection on the motherboard?
Did you try pressing against the antenna connection points on the motherboard with the back removed?
Well not entirely.. All I tried was checking the antenna wires (which I realized are just the WiFi antennas) and also, tried placing a copper wire in one of the testpoint area that's dedicated to GPRS.
Is it possible that the transceiver may be damaged? Or that's not possible from a simple fall.
Imei is not blacklisted?
Nahh I doubt it. Phone was purchased unlocked was working for a while.. Fell, signal went ..broken screen.. Then once the screen was replaced, inserted sim and it detected sim and also the network but won't gain any bars (service) nor will it detect any other providers.
I would check the imei just in case.
What would I compare that to, apart from what the phone telling me?
I'm registered on the cell network, but no service despite the adjustments of changing the network type or by dialing *#*#4636#*#* and making alterations there.
You can check the imei in swappa.
same problem
same problem with me sim detecting i can see card name but no service in signal bar wifi bluetooh all ok
Pretty wierd
razr003 said:
same problem with me sim detecting i can see card name but no service in signal bar wifi bluetooh all ok
Click to expand...
Click to collapse
Yeah pretty weird if you ask me. But if you do get a solution to that issue please share :good:
According to Rameeze87, possible hardware issue. Here's the link http://forum.xda-developers.com/google-nexus-5/help/nexus-5-network-signal-wifi-ok-t3310047
Had no idea couldnt duplicate threads, then again it did help to justify the issue.
same
Mine is doing the same thing. Once in a blue moon it will show full bars upon first inserting the sim for maybe three seconds and show provider then drop all the bars and say no service. Dont think there is a simple fix.
Having this issue right now with my wife's phone. Power button broke and was going through endless power cycling so I removed the power button. Got the phone working but will not connect to network. I have checked everything 20 times.
Any solutions?
Sent from my LG-H811 using Tapatalk
Yup.. same issue. Phone fell and no mobile signals since (sim gets detected). Everything else is working fine, checked the antenna wires and they are connected properly... Anyone here who was able to get the signals back?
similar issue here in the uk.
N5 phone worked fine for 2 years with a 3 sim.
i changed the knackered battery and that all works and charges ok.
but the 3 sim now wont work(but it does in my motorola moto g), the only sim that will work in my N5 is an O2 sim ???
why does one sim work but not another, the phone isn't locked to a carrier?....
My original OnePlus One worked great in my area, my Moto E also get's signal all the time so this is not a network coverage issue. I have an OPO that will let me make calls perfectly with great clarity, and then a moment later will say it does cannot find a signal. If left on it will mostly have no signal but after a few power cycles boom there you go, full signal! I would think it was an antenna issue except when it does work I have full signal, not a weak signal like on my old S3 with antenna issues.
I am hoping this is just a modem issue that can be fixed by flashing the latest stock rom/modem but I am hoping I can get some input on the problem.
Thanks for your time!
earmuffs said:
My original OnePlus One worked great in my area, my Moto E also get's signal all the time so this is not a network coverage issue. I have an OPO that will let me make calls perfectly with great clarity, and then a moment later will say it does cannot find a signal. If left on it will mostly have no signal but after a few power cycles boom there you go, full signal! I would think it was an antenna issue except when it does work I have full signal, not a weak signal like on my old S3 with antenna issues.
I am hoping this is just a modem issue that can be fixed by flashing the latest stock rom/modem but I am hoping I can get some input on the problem.
Thanks for your time!
Click to expand...
Click to collapse
have you dropped the device? it could be hardware.....too. Have you tried different modems or not? If not that would be a start. (https://forum.xda-developers.com/oneplus-one/general/firmware-modem-oneplus-one-t3462214). If the modems dont help then here what i would check...only if you confident.
Open the OPO and make sure the screws have not come lose as sometimes that can cause issues with signal.
Recently i has something similar but no as bad as you, i ended up replacing the, Speaker Antenna module, microphone flex. you could also replace the coax- i was suppose to be but the one i got sent was too long so i had to stick with the original one.
This is what they ebay guy sent me before i replaced the parts:
first thing to replace is the Coaxial cable (which carry's signal), check both coaxial sockets and the ports on the board it connects to
-Second (like you said) Mic Flex, although it is a tough call between the lower speaker unit and the mic flex as they are equally as likley to be at fault)
the speaker unit contains the GSM Antenna, the Mic flex simply takes the Signal to the main board from the speaker Module.
both would be Ideal unless you have time. speaker unit is relatively cheap.
finally check for any lose connections or wear to any of the Gold inside the phone where it makes a connection, using some wet and dry sandpaper rub the Gold plates Very very lightly to reveal a shinny Gold, some on the mic flex, some on the speaker unit, some on the other flex's,
and finally tighten all screws properly, often the screws can work their way out, pulling the connections away from each other.
I would suggest check the connection and wear to the gold as mentioned if u dont want to replace the parts. I found that the coax on mine has been disconnected on one end so i fixed this but it didnt help hence i ended up replacing the parts.
Service was spotty for me too.. I would have LTE and then the next second EDGE or no service at all. I eventually had to fastboot flash CyanogenOS 13 (latest stock for our device) and start over but it fixed my problem. I have not had a problem since.