Keeps dropping network - Nexus 5 Q&A, Help & Troubleshooting

Woke up this morning, no service, keeps saying current network (T-Mobile) is unavailable, the only way it'll work is if I pull sim card out, power it down, reinsert it and start it back up, it'll work fine for about half an hour and drops network again.
I'm running latest mahdi ROM, nothing else modified.
Any help appreciated.
BTW sim card is relatively new( about 5 months old)

Try a different ROM and if it still does it RMA the device I was having problems with service to where when I was using data it would decide to switch to h/3g I'm on T-Mobile as well

spinninbsod said:
Try a different ROM and if it still does it RMA the device I was having problems with service to where when I was using data it would decide to switch to h/3g I'm on T-Mobile as well
Click to expand...
Click to collapse
Thanks for the suggestion, i don't think its the ROM, but to put my mind and ease and eliminate that possibility I'll flash another ROM tonight.
Btw how does the RMA work? I've never had to go through this before
Thanks

If you purchased it through T-Mobile just call T-Mobile and tell them you're having problems with it and just do troubleshooting stuff and if what they say doesent work unroot it and send it back and if you purchased it through google same exact thing

Although I bought it brand new, it wasn't from Google or T-Mobile itself. If I can't rectify this with software I'll have to contact lg and see what they say

No bueno, flashed other ROM and currently on stock ROM still having same problem, service drops off rendering phone useless. Emergency calls only is all i get.
Any advice?

Try going to the service menu which you can get into by dialing *#*#4636#*#* in dialer. Go into phone information and try changing this setting:
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Since you're on t mobile I'd recommend trying anything but CDMA. WCDMA is fine though. Maybe one of the options will help solve your connectivity issues.
Personally I'm on WCDMA only when connected to WiFi. This gives me 3G. Otherwise I am on LTE only. GSM should give you 2g.
Sent from my Nexus 5 using XDA Free mobile app

e4604 said:
Woke up this morning, no service, keeps saying current network (T-Mobile) is unavailable, the only way it'll work is if I pull sim card out, power it down, reinsert it and start it back up, it'll work fine for about half an hour and drops network again.
I'm running latest mahdi ROM, nothing else modified.
Any help appreciated.
BTW sim card is relatively new( about 5 months old)
Click to expand...
Click to collapse
Have you tried different modem?

Figured it out, in short I got scammed. Called tmobile today, they blacklisted the phone for non payment, I guess the guy that sold it to me hadn't paid it off/paid. I guess lesson learned, call service provider and make sure device is paid off.
It still works with att. At this point I'll sell it as such and or for parts.
Thanks everyone

Related

Blacklisted?

In a full T-Mobile coverage area I lost the signal. When I attempt to connect it says this sim can't be used on the network? Factory reset and It's still the same.
Sent from my HTC One S
Could use more info
But, have you called tmobile and see if they can change towers to reconnect you or get a new sim
did you pull sim
check your apn settings
are you ok on wifi
Go into Settings / Mobile network / Network Operators / Select Automatically.
it will say searching for network and it will register on T mobile's network. after that you should have Voice / Data
Happened to me Once (or twice, cant remember) on my HTC Sensation
assumed OP already tried that--hope so--
rugmankc said:
Could use more info
But, have you called tmobile and see if they can change towers to reconnect you or get a new sim
did you pull sim
check your apn settings
are you ok on wifi
Click to expand...
Click to collapse
I haven't called T-Mobile yet, just got home.
Wifi works, I opened this thread over WiFi.
I don't get a signal at all, so I don't think this is an APN problem.
solracarevir said:
Go into Settings / Mobile network / Network Operators / Select Automatically.
it will say searching for network and it will register on T mobile's network. after that you should have Voice / Data
Happened to me Once (or twice, cant remember) on my HTC Sensation
Click to expand...
Click to collapse
I tried that and rebooted. I put my sim in a Motorola Defy, and it works perfectly. I'm about to call T-Mobile and the guy I bought it from.
Here's a picture of what it says after I tried the Select Automatically:
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if it never worked and you bought it from someone--maybe just a new sim needed
hope no hw issues
rugmankc said:
if it never worked and you bought it from someone--maybe just a new sim needed
hope no hw issues
Click to expand...
Click to collapse
It has been working since I purchased it last week. I'm chatting with T-Mobile now.
good luck--
rugmankc said:
good luck--
Click to expand...
Click to collapse
I purchased it on eBay, so I can always open a case.
The rep confirmed it was blocked today Now to call the seller and more than likely open a case.
I was going to say "sims die", get a new one, but a lot of recent posts lead me to say "don't buy a phone on ebay unless you are prepared for it to be stolen and blocked".
yeah, i would never do that. maybe craigslist where i can locally pu and try
but, it is what it is and hope the OP gets it sorted
Now what :beer::what:
Sent from my HTC One S using xda premium
huh i don't get it
The seller was very nice, I'm shipping it back today. I purchased it from Discount Wireless in IL. They probably bought it used, and someone reported it stolen.
Glad it's working out--

Calling Problem (Airtel 4G)

[SOLVED] Can't make a call. It disconnects on its own while showing the message as that in the screenshot that I've attached.
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(On LTE). Doesn't work on 3G as well. On 2G, it's fine. But I'm not satisfied.
Current ROM- CM13.0 Unofficial by sultanxda.
But this problem has been there on every ROM I've tried. This problem was not there when I was using a 3G SIM. I've tried switching 4G SIMs but the problem persists. Please help! I want to use LTE and make calls together without changing the settings each time. The signals remain there the rest of the time but it gets disconnected as soon as I make a call. FUN FACT- SMSs work fine. Note- This isn't a ROM problem. I've called the technical support but they just don't know how to handle ****. This is very disappointing.
I'm using an Airtel SIM (India)
Thanks!
Sent from my A0001
Where in India? I use Airtel 4G and never experienced this issue.
BTW, I am from Bangalore.
Shankar9822 said:
Where in India? I use Airtel 4G and never experienced this issue.
BTW, I am from Bangalore.
Click to expand...
Click to collapse
In Faridabad (NCR). I just don't know what's wrong. I've tried almost everything.
Sent from my A0001
Airtel doesn't support voice over LTE. But your network should be automatically switching to 2g when a call is made and then back to 4g after the call. There will be no data access during the call except for WiFi.
rappa619 said:
Airtel doesn't support voice over LTE. But your network should be automatically switching to 2g when a call is made and then back to 4g after the call. There will be no data access during the call except for WiFi.
Click to expand...
Click to collapse
What about that dialog box in the screenshot?
Sent from my A0001
Try going to a place with a good signal and doing a network scan and select airtel manually instead of automatic.
There's a tower right next to my place, so I always have full connectivity. And I've already tried selecting Airtel. The problem still persists.
Sent from my A0001
If you know how to flash custom baseband/modems, maybe you can see if a different one can fix the problem.
If that doesn't work, then a factory reset is the last resort.
Nope, tried that as well. I perform factory reset every now and then.
Sent from my A0001
Well, I forgot to mention that the issue got resolved automatically after a few days. I don't know what actually fixed it. Maybe jgcaap's ROM, or a complete wipe. But it was fixed. Weird issue.

Phone gone crazy

Hello, I'm not even sure am I posting in right sector? However, I have some serious issues with my phone lately. It started 2 years ago with my Note 3, I'm suspecting that someone government or some individual spy my phone. However, let me explain you whats going on before you think i'm paranoid.( i'm not hey?). So i bought Note 3 post paid with local telecomunication company 2 months after the release, and everything was normal. Then i went out of the country to holiday, there stops my signal. No roaming, can't select any carrier. So i asked guy where i bought phone whats going on he told me that it's becouse they might still not active roaming. Alright no problem. The minute i enter my country i got my signal back. Anyway i broke the phone and I switch phone and telecommunication company( so new phone, new SIM card, basically everything). And i went to another school trip, the minute I left my country the same thing happened. No signal, no roaming, can't select any carrier. After I came back I asked reseller whats it about he told me same thing first one did. Might be that roaming is still not active. Alright. Now whats happening, my mother bought the phone with that 2nd telecommunication company so we got 2 new phones on her name( not sure do you understand me? Both of phones are in agreement with my mother. My mother and I went aboard and the thing is with her phone everything was fine, roaming; signal. My phone of course don't have signal the minute I left boarder. Alright, i stopped to worry and let it go. After all, few months ago i started getting roaming in my own country? There started paranoia again I guess. I went to see the guy and he told me that becouse when signal on tower drops you might get roaming. But the thing is i've watch on YouTube this new surveillance system SS7 how spying is done on phones is done. So before they intercept SMS/call roaming turns on on target device, huh? Alright thats alot of paranoia I guess, so i simpy download AIMSICD and guess what? AIMSICD detect cell towers in my own house? Huh? And also it gave me "Danger" notification, i'm going to give you screenshot.
Anyone got idea whats going on? Too much paranoia or this is possible?
Someone might ask why i think i've begin tracked, well there are few reasons but i can't really discass it so publicly.
Thank you
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[Completed] Can't activate Droid Turbo 2 - Hardware Issue?

Hello!
I have already poured my heart (an obsessive number of hours) into getting as far I as I have with this and could really use some expert advice. I have repaired a water damaged Droid Turbo 2 (factory unlocked, locked bootloader) stuck in bootloop and eventualy got the device to a point where everything I tested (screen, digitizer, sensors, wifi and bluetooth radios, speakers, microphone, cameras, flashes, battery and charging circuits, ...) worked. I was super excited, until I tried to activate the device with my carrier today, multiple times, (Metro PCS) and failed. I'm not an expert on this stuff, especially how cell networks work, and I need guidance on what to do next.
When I attempted to activate the device at the Metro PCS store they set the phone up from the carrier's end with the IMEI and sim card number, and after the phone was rebooted multiple times no connection was ever made. No service is shown on the 'bars' and Cellular network settings > Mobile Network Type displays 'No service'.
The brand new sim card appears to be functioning. When calls are attempted, a prompt appears that states the phone will not make calls on airplane mode, even though airplane mode is definitely not active. The prompt allows you to select 'Yes' to turn airplane mode off, after which the phone states that it is turning on the radio. This process apparently times out, and I am sent back to a blank dialer. The people at the store or Metro PCS Dealer Support Group haven't been able to tell me why it won't work, except a lady on the line eventually said that she thinks the phone only supports CDMA, but I am sure this isn't true. At the store we did try manipulation of APN settings with no luck as well.
Main things I did to get the phone this far (ie. before ever attempting to activate it with a carrier) - flashed OEM firmware 6.0.1 I found online (didn't fix), torn phone down and cleaned corrosion with 91% isopropyl alcohol (the step that got the phone out of bootloop), tore NFC/wireless charging coils part flex cable in the process which caused the charging circuits to malfunction, replaced that part, and tested every feature I possibly could.
The only two things I can think of as to why I can't get the device onto my network: the cellular radio happens to be the only thing still broken on the phone OR it's just not going to work with Metro PCS for some reason.
I know there are people on these forums that know a lot about this stuff, and I could really use your help. Any advice will be appreciated.
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Hi !
Most probably a hardware issue , let`s keep the discussion in one place
Original thread here
Good luck !
thread close

Can't connect to network suddenly and emergency calls only

Today i went on business trip and while on plane i put airplane mode on. Upon landing i couldn't connect to network anymore, it gives me 2 errors depending if i manually select network or try automatically, those 2 are Unable to connect. Try later and Error while searching for network.
I reset network settings, restarted phone, reset it, tried different sim in my phone and it didnt work either, mine did in other phone. I dont known what to do besides wait to go home and give it to service since its under wattany... any ideas please?
N_L said:
Today i went on business trip and while on plane i put airplane mode on. Upon landing i couldn't connect to network anymore, it gives me 2 errors depending if i manually select network or try automatically, those 2 are Unable to connect. Try later and Error while searching for network.
I reset network settings, restarted phone, reset it, tried different sim in my phone and it didnt work either, mine did in other phone. I dont known what to do besides wait to go home and give it to service since its under wattany... any ideas please?
Click to expand...
Click to collapse
is your phone rooted or did you install a custom rom/kernel on it?
All stock
I get bars but cant get on network. Carrier back home said i seem connected and reset it but it's not card issue as i tested for that...
Maybe this can help
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I can also open and browse carrier sim app but cant receive resulting messages from stuff there or make a call...weird stuff
N_L said:
I can also open and browse carrier sim app but cant receive resulting messages from stuff there or make a call...weird stuff
Click to expand...
Click to collapse
You didn't say but have you tried a reboot?
At least20 times, wiped cache too
Came home and network works... I'm still taking it to service but don't know how they'll or I can test it. Other sim produced same error abroad so it's not that...
Edit:
Bit of an update:
I called my warranty place they said phone is from Italy which now made sense but that it should work. I ran imei check and it says blacklisted. I bought it new unsealed with warranty from official place so now I'm gonna need a new phone, right?
It is the bug of Samsung. I am having the same problem all the time on both S8+ and S7Edge. Iphone 6 is fine. Typical answer form Samsung is 'network or sim' related. O2 is saying problem with your phone. When I choose network manually everything is working. As a fix you can turn 4g off when roaming

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