I have an unlocked and rooted galaxy s3 on cyanide L costum ROM and T-Mobile as service provider. I was outside the US , my phone was working perfectly on roaming when I dropped and broke my screen. After paying $100 to have the screen and digitizer replaced I have been unable to connect to cellular data. Occasionally the signal will show five bars with an exclamation sign at the end. I am back in the US, my phone can make calls when connected to Wi-Fi but won't connect to cellular data when I turn off WiFi. I have reassembled and made sure any connection is not loose. I have done factory reset and tried a different ROM but that hasn't help. My sim works in other phone.
Anybody have any idea what could be going in? I will appreciate any help.
I think when you dropped your device, it mistakenly broke antenna .
Go to Service Center and ask if they can help with it.
Which antenna could it have broken? The flexible antenna seems intact
owura143 said:
Which antenna could it have broken? The flexible antenna seems intact
Click to expand...
Click to collapse
There Is A Antenna For RIL.
You Need To Take It To Customer Servrice Center .
Related
Hello,
Firstly I'm looking for a comment from an expert who has taken Nexus5s apart before. Also I'm beyond the point of returning the phone as this fault developed after replacing a screen and ribbon cable (after I smashed my phone badly). Any help or advice would be great.
So since screen and USB flex replacement on my D821 i notice that my phone signal will connect with full bars, then drop completely, I can also only get 2g where i was able to get higher. The same sim works fine in my nokia. The Wifi Signal is fine and gps works ok but the 'no service' thing makes my phone unusable. I have tried making sure all contacts are clean and even replaced the loudspeaker unit and the black antenna cable but to no avail.
Can someone put up a picture of exactly the components that are involved in the phone signal / 3g setup? Is it possible something could have been damaged on the mainboard to cause this? I can search for networks, connect (sometimes) then it will just cut out.
I tried google for days but cant find a schematic. Basically im trying to determine if there are any other parts i should try exchanging before giving up. It makes no difference how i hold (or dont hold) the phone.
Thanks
Good day, today I dropped my phone don't know if it lost signal after this didn't notice until I tried to make a phone call but now there no signal, can't make or receive calls, I notice that at the bottom of the screen it shows my service provider name and next to it says no service so don't know it its hardware related or sim, do you think that if I reset the phone it might work again? Thanks. Right now can't test because I'm at work, but in general information on service it says disconnected
Sent from my Nexus 5 using xda premium
Flash stock with fastboot, if it's the same, it's hardware I'm afraid.
Thanks a lot did already, tried everything seems hardware related, noticed that it also lost nfc connection wondering rich part should I replace to fix it, if only has to do with antenna or the whole mainboard
The NFC radio and antenna are connected to the back cover. Try popping your back cover off and on again.
Dihantar dari Nexus 5 saya dengan XDA-Free mobile app
Thanks already did and nothing, could it be related to some other piece?
go to your dialer app and type in #*06*# and see if a number pops up (your imei number) (dont post the number here)
Did too, also the *#*#4636#*#* and checked if signal was turned on, tried sim in other phones works without problems, I noticed that nfc is not working too, guess it has to do with a piece of hardware as far as I know both antennas are in the back of the phone. Took it to service and they told me it has no problem physically, this is driving me crazy
Also checked that it has no reports of being stolen, imei seems correct and legit checked it also on a site to see if it's valid and its working, it starts with a 32.
My phone wouldn't connect to any network after being in airplane mode on vacation for a week, acted like no signal - empty triangle instead of bars. I called my cell provider (T-Mobile) and after a new SIM and a factory reset they did something on their end because my phone was trying to connect to a tower that didn't exist. I'm a little fuzzy on what they actually did, but it worked. I actually had to do it twice over a couple weeks before it stopped giving me trouble.
ShiroZ31 said:
My phone wouldn't connect to any network after being in airplane mode on vacation for a week, acted like no signal - empty triangle instead of bars. I called my cell provider (T-Mobile) and after a new SIM and a factory reset they did something on their end because my phone was trying to connect to a tower that didn't exist. I'm a little fuzzy on what they actually did, but it worked. I actually had to do it twice over a couple weeks before it stopped giving me trouble.
Click to expand...
Click to collapse
thanks friend will have to go and check with them , dont know if its the same because my phone has no cell provider it accepts any sim you insert to it
Hello
Hello guys, I am on the same boat as Valholy described.
My phone fell on the ground from my hands. When I took the phone from the ground... it was still working(it wasn't shutdown nor restart), I only noticed that there was no more signal. Tried to restart/shutdown, factory reset, different sim card but no luck at all... As Valholy described it shows provider's name on the bottom of the screen, but there is no signal yet.. It seems like hardware issue. Any recommendation to fix this issue?
Did you fix your phone yet, Valholy?
Thank you
bump...
any help please.
thank you
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?....
At some point in time - I can't tell exactly when - after replacing the earpiece speaker of my N5 and updating to the latest Lineage OS version 3G connectivity stopped working.
4G works fine, but if there's no 4G reception or the phone is forced into 3G mode using the settings it drops down all the way to 2G, although other phones on the same network have flawless 3G reception.
I have reflashed the radio and both the newest and oldest factory images available from Google and also tried cleaning the contact surfaces of the antennas in the back cover and I've also bent up the contact springs a little to ensure more contact pressure, but nothing has helped.
Since 4G coverage is far from 100% in my area this effectively limits the phone to 2G most of the time which makes it pretty useless.
Does anyone have an idea what could cause this problem?
Thanks
Open the smartphone again, check connection on both ends of black and grey antenna cable.
daedric said:
Open the smartphone again, check connection on both ends of black and grey antenna cable.
Click to expand...
Click to collapse
The black cable's connector on the upper, larger board was loose - most likely due to it being so close to the edge of the phone and me not paying attention when prying the back cover open.
I reconnected it and now 3G works again :victory:
Thank you
I bricked my phone, sent it to an authorized repair center, they replaced the motherboard, display and battery and sent me the phone back.
Phone is working now, but GPS doesn't find ANY satelites and 5GHz wifi drops connectivity just 2 meters away from the router. Am i tripping and being stupid, or they really forgot to plug one of the antennas back to the motherboard? It just sounds like it, what else could it be? 2.4GHz works fine, Bluetooth works fine, 5G cellular cant tell because i have to root my phone (non supported country). GPS module seems to be working, it just acts like im burried underground, not finding even a single satelite. Wifi 5GHz i get full signal only when i put the phone on top of the router. 1.5-2m away and it drops connectivity completely.
Just do another RMA. lol
It sounds like they either did something wrong or there is some issue with the new motherboard.
You must have hired a inexperienced person.