Losing Signal Every Few Minutes - Galaxy Note 3 Q&A, Help & Troubleshooting

After a year on my iPhone 5, I've decided to switch back to my Note 3. However, as the title states, I've been losing signal every few minutes even in areas with good signal. Each of the signal blackouts last for about a minute. Furthermore, I have really low signal on the Note 3 (0-1 bars out of 5 when my iPhone has 2-3 bars out of 5).
EDIT: New symptom. If I try to make a call, it says dialing but there is no dial tone and a few seconds I get no service.
I have tried the following fixes:
Checking the SIM card. - It is not a problem with the SIM card because my iPhone 5 does not have this problem when I inserted the SIM into it. I also tested the device with multiple SIM cards, all with the same problem.
Factory Reset/Wipe and Cache Wipe in Recovery Mode
Updating - There were no updates
Turning the radio signal off then rebooting
Flashed stock firmware
Flashing custom ROMs such as Resurrection Remix and Cyanogenmod 12.1
Flashing other modems
Unfortunately, none of the above fixes worked for me and I suspect it could be a problem with the hardware. However, the phone has been untouched for a year and I did not have this problem when I was using it before. The reason I switched from my Note 3 back to my iPhone 5 was because of the bad signal issue.
Any help would be greatly appreciated!
Phone Information:
Device: Samsung Galaxy Note 3
Model Number: SM-N9005
Android Version: 5.0
Baseband Version: N9005ZSUGOL1

Flash stock rom for your region/network if that fails its hardware most likely the connector .

First: Does turning Airplane mode on then off restore signal?
Next, check in Developer section and click ON [Mobile Data always on] then restart.

JJEgan said:
Flash stock rom for your region/network if that fails its hardware most likely the connector .
Click to expand...
Click to collapse
Forgot to say I tried that yesterday. Unfortunately it did not work.
Journyman16 said:
First: Does turning Airplane mode on then off restore signal?
Next, check in Developer section and click ON [Mobile Data always on] then restart.
Click to expand...
Click to collapse
Turning Airplane Mode on and off does not restore signal immediately. I get no service until nearly a minute later. Furthermore, I can't seem to find that option in "Developer Options".

Related

[Q] Phone keeps droping signal - can't make calls - have to reboot to get signal

New problem here - this has been happening for about 3 weeks now.
I have i337 on AT&T rooted running NB1 Baseband and Danvdh's GPE rom
For the last 3 weeks my phone reception has been dropping out completely and I have to reboot the get signal. I can not make or receive calls and switching to Airplane mode and back does not help... I have to reboot to be able to make phone calls again.
I have tried all the new 4.3 and 4.4 modems and have switched back and forth between Danvdh and iB4StiD's GPE - I was running iB4STiD's rom for the last 6 months with zero problems...
I have checked my APN and all the information is correct when I am connected to a network .
Any help would be greatly appreciated
I switched to a touchwiz ROM and noticed that the phone says Sim can not be detected and requires a reboot to re recognize Sim card... I have replaced the Sim card today and same issue persists... Any help?
Sent from my GT-I9505G using Tapatalk

All time on Airplane mode

Hi,
week ago one time for half day i cant use phone because sim cards nor registered, after couple reboots and after restart and in power menu disabled airplane mode hi start working. but last time that keeping all time not helping restarts. i make video maybe somebody knows what i can do to fix?
wwwdotyoutubedotcom/watch?v=4LyOrB7JoYw
last night unlock bootloader, put twrp and try stock CM 12.1 (on video) zuk z1 cm and exodus rom and that not help sim cards still off and i see in settings that radio is off
I'm also facing the same problem with CM12 and CM13 unofficial as well, any help..
Dial *#*#4636#*#* click phone information menu
Check your radio status
grengo said:
Dial *#*#4636#*#* click phone information menu
Check your radio status
Click to expand...
Click to collapse
GSM radio always off not able to switch on, Anyway i fixed the problem with ZUI latest version.
I just flashed the "ZUK_Z1_1.5.215_M_ST_160105" with QFIL tool it's wiped out everything and came back to normal.
Anyway Thanks buddy...
airplane mode
Ramshu97 said:
GSM radio always off not able to switch on, Anyway i fixed the problem with ZUI latest version.
I just flashed the "ZUK_Z1_1.5.215_M_ST_160105" with QFIL tool it's wiped out everything and came back to normal.
Anyway Thanks buddy...
Click to expand...
Click to collapse
Please give us some linkd or a little tutorial to fix this problem
wionut said:
Please give us some linkd or a little tutorial to fix this problem
Click to expand...
Click to collapse
Followup with below link
http://forum.xda-developers.com/zuk-z1/development/how-to-flash-zuk-z1-zui-version-t3265741
wionut said:
Please give us some linkd or a little tutorial to fix this problem
Click to expand...
Click to collapse
Did you fix the problem ?
Nope. The problem still exist on my phone
L. I have no idea how can I solve it because I just try all solutions. I am afraid that it is a hardware problem...
wionut said:
Nope. The problem still exist on my phone
L. I have no idea how can I solve it because I just try all solutions. I am afraid that it is a hardware problem...
Click to expand...
Click to collapse
I'm also facing the same issue since yesterday, if you get any solution please update me.
Thanks
Have you guys any update on this? I'm having the same issue. Tried all kinds of resets, flashes, etc. (except for QFIL). It happened to me a few weeks ago too but the phone just started working again after 1-2 days. The issue seems to be that the radio won't turn on. One interesting thing I did notice was that my phone seems to be detecting my SIM as Canadian, which it's not. This occurred when I did a fresh CyanogenMod flash. When doing the initial setup, CyanogenMod flashes up a message about detecting the source location of the SIM card and then sets the language option to match.
I've contacted zuk.eu about it but no word back yet. Not holding my breath. I'll try and get my hands on a SIM card from a different mobile operator after work and see if that makes a difference.
Well, another case of Zuk Z1 with the "no service" (in the shorcuts the airplane mode is off but in the power menu is on even having reset the phone). I wiped everything, I flashed different roms, in the end I flashed with QFIL the stock rom with his recovery, and there is no way to fix the problem.
I'm trying to make a list of users that has happened the same because apparently is not a single fault.
@Pneumatikos in another XDA threat: http://forum.xda-developers.com/showpost.php?p=65223170&postcount=851
CyanogenMod forum: https://forum.cyanogenmod.org/topic/124163-cell-radio-not-working/
Lenovo UK Facebook page: https://www.facebook.com/LenovoUKandIreland/posts/1051732008201312
Another user in GSMArena (Marcko 2016-04-20 13:23): http://www.gsmarena.com/lenovo_zuk_z1-reviews-7511p8.php
https://www.youtube.com/watch?v=4LyOrB7JoYw
sethnet said:
Well, another case of Zuk Z1 with the "no service" (in the shorcuts the airplane mode is off but in the power menu is on even having reset the phone). I wiped everything, I flashed different roms, in the end I flashed with QFIL the stock rom with his recovery, and there is no way to fix the problem.
I'm trying to make a list of users that has happened the same because apparently is not a single fault.
@Pneumatikos in another XDA threat: http://forum.xda-developers.com/showpost.php?p=65223170&postcount=851
CyanogenMod forum: https://forum.cyanogenmod.org/topic/124163-cell-radio-not-working/
Lenovo UK Facebook page: https://www.facebook.com/LenovoUKandIreland/posts/1051732008201312
Another user in GSMArena (Marcko 2016-04-20 13:23): http://www.gsmarena.com/lenovo_zuk_z1-reviews-7511p8.php
Click to expand...
Click to collapse
Add me to the list .
Since about 2 weeks I get "no service" with airplane mode in power menu.
I think I had a similar problem some months ago, when I pressed the LTE button in pull down menu. But it was working again after some minutes or reboot or something like this.
I use two sims, and when the problem started 2 weeks ago, I think one of both SIM cards was working longer than the other one.
In the evening I saw, that one of my sim cards (calls + sms) did not have signal (0 bars), but I was not investigating this, because the other SIM (mobile data) was working without problems.
The next morning, the mobile data sim was without signal too and at "no service".
All was on stock rom. Now I tried some CM13 and different kernels, but this did not help anything.
Hopefully there will be something somewhere to get our phones back to work
apo_tuux_de said:
Add me to the list .
Since about 2 weeks I get "no service" with airplane mode in power menu.
I think I had a similar problem some months ago, when I pressed the LTE button in pull down menu. But it was working again after some minutes or reboot or something like this.
I use two sims, and when the problem started 2 weeks ago, I think one of both SIM cards was working longer than the other one.
In the evening I saw, that one of my sim cards (calls + sms) did not have signal (0 bars), but I was not investigating this, because the other SIM (mobile data) was working without problems.
The next morning, the mobile data sim was without signal too and at "no service".
All was on stock rom. Now I tried some CM13 and different kernels, but this did not help anything.
Hopefully there will be something somewhere to get our phones back to work
Click to expand...
Click to collapse
I am also facing the same problem, I want to know how to solve or how can I get ir fixed by a third party.
apo_tuux_de said:
Add me to the list .
Since about 2 weeks I get "no service" with airplane mode in power menu...
Click to expand...
Click to collapse
gmurop said:
I am also facing the same problem, I want to know how to solve or how can I get ir fixed by a third party.
Click to expand...
Click to collapse
Apart from you I have found two more cases.
One on one phone repair web and another who has answered my posting on the Zuk Mobile Facebook page.
Airplane mode error fixed?
What sorcery is this?!.
I had already given up with the Zuk Z1 airplane mode always on error. There was no way to remove the message "No Service" even after full wipe and flashed a rom+recovery stock (COS 12) with QFIL.
Several weeks later I decide I'm going to use the phone as a media player, back to flash TWRP recovery with Mauronofrio Tool All In One and install the official CM13 ROM (snapshot 20160418). Before I used the unofficial CM13 version of Coldbird (with the mm-firmware.zip).
A few days later, out of curiosity, I look if the airplane mode is still activated in the advanced power menu and is listed as disabled!. I insert the sim, in the *#*#4636#*#* the radio is on, and now I could make and receive calls (and connect to LTE / H / 3G networks) the last three days without problems, and I've even been in areas without coverage and then the phone reconnected with no problem.... !
Now I'm using the 20160602 nightly CM and Radioactive Reborn Kernel smoothly (only some reboots occasionally). I still do not know what happened with the phone and if it has solved the problem at all or is temporary and will fail again.
@Kausik2888, @gkanaje and @bromän report the same problem in this thread
Hello friends,
Even i am facing the same problem. The phone is always on 'Aeroplane' mode.
I tried CM12.1, CM13 and again flashed the stock ROM, but no use. The phone never comes out of the 'Aeroplane' mode. The GSM Radio status is always OFF and cannot turn on the radio from the phone info menu (*#*#4636#*#*)
Initially it was working fine but since i was not getting good signals inside my room i changed the preferred network from '4G(recommended)' to '3G' and boom !
The phone has lost the signals from that day. The phone detects my simcard, the IMEI's are valid but 'No service' / 'Aeroplane On'
Attaching logcat that i took after i rebooted my phone - https://pastee.org/p4rmf
Am also encountering the sane aeroplane mode problem in lenovo zuk z1 which I bought a month back.. Guys please suggest me the solution what should I do? Is there any way to overcome this problem
For me it was same issue few days back in my Zuk Z1. I read some where that it is 4G band related issue. So, i applied few steps and now it is working -
1. Take sim out from phone (no need to power off). Put aeroplane mode off from both power button option and settings.
2. Power off mobile. Put Sim back in some time (1 hr) and change preferred network from 4G to 3G.
No service radio service off on sim
grengo said:
dial *#*#4636#*#* click phone information menu
check your radio status
Click to expand...
Click to collapse
that option did not work

Note 3 N9005 Signal issue

Evening,
I have a signal problem on my N9005
Signal is just about non existent, so far, i've tried the following:
Factory resey/wipe cache
Flash modem with 2 different one, works good for 5 mins, then goes off again
Flashed about 5 different stock roms, same result, works fine for 5 mins, then stops
Flash a custom rom, same result lol
I'm now believeing it to be a hardware issue, unless someone has any ideas?
Change sim card would be step one .
Does this happen with all sim cards? Phone shows the correct IMEI? Was the phone ever dropped? Phone support's your carrier's radio frequencies? It worked properly with this carrier on a prior occasion ?

No Network

Hi good people, I am facing a problem. Around 8 hours back I tried calling someone but the call didn't connect so I restarted the phone and then I lost the network. I tried reboot, flashed different ROMs (unofficial CM14, cm13 nightly build n MM nougat backup), tried with GAPPS and without GAPPS but the problem is persisting. I even tried swapping the Sim cards before that but of no use. I tried debugging by using *#*#4636#*#* but ping test is failed and also there is "TURN RADIO ON" I believe ideally it should be "TURN RADIO OFF". please have a look at the screenshots. I'm almost dying without making important calls.
Update: Guys I have got it working.. Kindly look into my below posts. Please don't misguide people for small issues.
Thanks
In the screenshot we can also see, GSM SERVICE IS OFF. it stays the same even after clean flashing a new custom ROM.
Got it working. Flashed latest COS ROM file however the situation was still the same. Then I removed sim, switched on airplane mode restarted. After reboot inserted Sim then again restarted n then I got the signal
1. Removed Sim card, switched on airplane mode from both power menu and notification toggle.
2. Restart, inserted Sim card and switched off airplane setting from setting. (Notification toggle and power menu didn't work) then got the network.
Please note I tried with only one sim in sim 1 tray. Later I got the network for 2nd sim as well
Narasimha12 said:
Got it working. Flashed latest COS ROM file however the situation was still the same. Then I removed sim, switched on airplane mode restarted. After reboot inserted Sim then again restarted n then I got the signal
Click to expand...
Click to collapse
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
I've had the same problem for almost a month now... and i gave my phone to the service center. They called up to inform me that its a motherboard failure and they'll fix it.. I'll provide further info when I get my phone back (probably in 3-4 days)
P.S I tried almost every method to make it work. So if you couldn't make it work in first 2 days or so, dont waste your time and just give it for the servicing (make sure its in Stock OS so that they dont ask any questions about root xD )
lekhwani said:
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
Click to expand...
Click to collapse
I flashed almost every latest ROM. But no ROM got the network back. So as a last resort I flashed COS 12.1 and still didn't get the network. Then I removed both the sims, activated flight mode restarted the device, left it couple of minutes and inserted only one sim in first slot. Holla I got the network. Then everything is back to normal
If u r facing the same problem I would suggest u to activate flight mode n restart. If it doesn't work try by removing sim cards, if it still doesn't work try COS 12.1.
lekhwani said:
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
Click to expand...
Click to collapse
Usual procedure of flashing. Wipe cache, dalvik, system and data. Flash ROM + Gapps. Reboot
Try to search in the forum. There is a lot of threads with the same problem with the Zuk Z1. It is a hardware problem.
Enviado desde mi Redmi Note 3 mediante Tapatalk
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Please follow xda rules and don't tell people illegal things where they get in trouble. Keep in mind, that's not an illegal forum
Sure thing but I have already mentioned it. I didn't post anything illegal. So, take it easy.
psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Hej. I manage to mess upp my baseband/modem proberly when flashing a rom or i messed up in twrp.
Phone show up imei as null and unknown baseband so i would really appriciate you help here.
I still have orginalbox that show my imei so i can enter the correct one when needed.
psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Hi, I haven't still gone to the service centre. Kindly pm me the tutorial for getting signals back.

910F Network Problems

Hello, since a few days my Note 4 has the problem that it looses connection. WiFi works perfect but mobile data and normal signal are gone at least once a day and the only thing that helps is to reboot the phone.
Is this an OS failure or a modem failure? If its a modem failure where can I get a new one for austria?
Thanks for the help.
Edit:
Tried some modems from here for the 910F and now its totaly broken. I have no signal at all, Baseband Unknown and when I turn on Mobile data it says that i have to insert a Sim Card and its restarting a few minutes after its turned on.
Edit 2:
Flashed an update from my operator and its working again, but on the downside I have the operator**** back on my phone again.
Okay it didn't help. Its loosing signsl again and can't reconnect it also has mocrofreezes now.
Is there really no one that can help?

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