I recently got a voice and text only sim card from Tbaytel (Rogers) to use on my spare phone while working up in Northwest Ontario (DMTS/Knet towers). I sim unlocked it (was a Bell phone) and I am having tons of problems. The phone is rooted and currently running JDCTeam Optimized CM12.1. Firstly, I can not get a signal consistently. If I go into the network settings and move between LTE/3G/2G etc. I will get a signal right away and it will send a text and call out (call outs have problems too I'll address that at the bottom) until I turn the screen off or the phone sleeps by itself. When I turn it on, it just says No Service/RogersTbaytel until I play with the network settings again. And, when it does get a signal after switching the settings around, it's full bars so it's not a tower or area issue.
As for the calling out, it will dial out when I have a signal and my other phone will receive it. However, the S4 phone kind of lags on the dial out and when I pick up the line with my other phone there is no voice transmission from either phone but the call seems to be connected. I also can not seem to end the call with the S4 but I have to end the call with my other phone.
I have tried a few different ROMs, the Google Play Edition 4.2.2 (IIRC) one, CM10.1, CM11 and they all have this same problem.
Any assistance would be greatly appreciated. I have decent knowledge with rooting and such but don't get super technical with me. I should be able to do just about anything with a bit of guidance though.
Thanks.
Related
I am on an AT&T 8525(see signature) running WM 6.1. I am in an area where my phone shows that I am on AT&T's network in the southeast US with 2 bars but I have no service. I cannot make a phone call although I occasionally receive a call, I cannot answer it. I also cannot get any data connection to work except the occasional SMS message. My wife is on T-Mobile with an 8125 and she has about the same coverage although she can make and receive calls about 90% of the time so there is no doubt that we are on the fringe of coverage.
I've tried changing the network band on my phone with no luck(trying to see if for some reason T-Mobile is on something different than AT&T). I tried upgrading my radio ROM as well to see if that would help(see sig) but didn't change anything. In other areas, with just the one bar of signal strength I've been able to make calls 100% of the time. It's only this one area that gives me fits.
I have FieldTest.exe on my phone but must admit that other than looking at the pretty numbers, I don't really know how to interpret the results of that app. Any suggestions?
Rick
I am having same problem, tried something like 3 roms , and it sometimes work for a while then stop working again, i was a new rom when i found it was making calls but no 3G connection, i tried another rom, made few calls then now it is unable to connect to anything , please let me know if you find a solution
Hi All,
I have a Galaxy Note 4 SM-N910F with BTU firmware N910FXXU1ANK4 (UK) which I flashed from the older O2 UK firmware N910FXXU1ANJ4 when I bought it.
I am having problems receiving calls and making calls when 4G LTE is enabled on the phone (I get 4G signal bar). When someone calls me my phone rings and the signal bar is 3-5 bars usually and when I slide to answer the phone it seems to answer (timer starts clocking up) and I can't hear anything (sometimes for a split second) and the other person can't hear me, then the person is directly kicked to my voice mail!
If I try to make outgoing calls with 4G enabled it sometimes works but other times it sits there saying "dialling..." then after 10 second or so gives up and stops. If I do manage to call out I get terrible phone recetion breaking up and high pitched noises sometimes. Sometimes it is ok for a while talking but eventually the call drops at some stage.
If I force my phone into 2G only or 2G/3G only then the phone seems to work completely normally.
I have had multiple SIM swaps with no luck.
Samsung walk in repair centre was useless as the empolyees all appeared to be undertrained kids.
O2 was no use saying there is no transmitter faults reported in my area.
Before I try a hard reset and flashing back to the old O2 firmware and then possibly sending my phone away for repair, is there anything else that might be going on here? Has anyone else seen this or know if it is a known problem?
Cheers,
Richard.
laxity said:
Hi All,
I have a Galaxy Note 4 SM-N910F with BTU firmware N910FXXU1ANK4 (UK) which I flashed from the older O2 UK firmware N910FXXU1ANJ4 when I bought it.
I am having problems receiving calls and making calls when 4G LTE is enabled on the phone (I get 4G signal bar). When someone calls me my phone rings and the signal bar is 3-5 bars usually and when I slide to answer the phone it seems to answer (timer starts clocking up) and I can't hear anything (sometimes for a split second) and the other person can't hear me, then the person is directly kicked to my voice mail!
If I try to make outgoing calls with 4G enabled it sometimes works but other times it sits there saying "dialling..." then after 10 second or so gives up and stops. If I do manage to call out I get terrible phone recetion breaking up and high pitched noises sometimes. Sometimes it is ok for a while talking but eventually the call drops at some stage.
If I force my phone into 2G only or 2G/3G only then the phone seems to work completely normally.
I have had multiple SIM swaps with no luck.
Samsung walk in repair centre was useless as the empolyees all appeared to be undertrained kids.
O2 was no use saying there is no transmitter faults reported in my area.
Before I try a hard reset and flashing back to the old O2 firmware and then possibly sending my phone away for repair, is there anything else that might be going on here? Has anyone else seen this or know if it is a known problem?
Cheers,
Richard.
Click to expand...
Click to collapse
Most mobile providers still don't support VoLTE (don't know if that is the case in UK) so your phone needs to go down to 3g/2g when phone call is received.. So maybe there is some problem between BTU and O2 firmware (I am no expert, but may be CSC related)..
I suppose your network selection on 4g/3g/2g automatic mode, not LTE (4G only)?
velimr said:
I suppose your network selection on 4g/3g/2g automatic mode, not LTE (4G only)?
Click to expand...
Click to collapse
I only have the option of :
LTE/WCDMA/GSM (auto connect) - Have the issues with this mode
WCDMA/GSM (auto connect) - No issues in this mode
WCDMA only - not tested
GSM only - No issues in this mode.
In phone dialer hit settings. There should be a volte toggle if there is turn it off.
I don't have any issue like that. 4G turns to 3G or 2G when receiving/taking a call. May be u hav an issue with ur firmware
I've tried flashing back from the BTU UK firmware back to the original O2 UK firmware and the problem remains. I also tried a hard reset afterwards leaving the same issue.
I have noticed that the issue does occur with 3G as well as 4G but it seems to be a bit more stable. 2G seems the most stable.
I have arranged with Samsung to send my Note 4 for repair so hopefully that will resolve the issues.
I have the same problem using 4G. Sent for replacement. Waiting for feedback..
got information that warranty service did find the problem and in a week or so I will get new one
I HAVE THE SAME PROBLEM!!!! THANKS A LOT !!!!! I WAS LIKE CRAZY TRYING WHAT CAN BE WRONG WITH THIS....
In my situation i can
send and receive sms on all mods
I can call in 4g but i can't receive calls when im on 4g... - just only hire is a issue
Last time my charger when i was charging in night get burn and i think meybe form that time... i have phone 3 weeks brand new.
Just posting this in case somebody has some ideas. I've had a MetroPCS LG Leon LTE (MS345) for over a year without problems, but now it started losing its mobile connection sporadically, for a few minutes or a few hours, as if there was no SIM in the phone.
Symptoms:
The 4G indicator disappears from the notification bar (signal strength indicator shows good signal).
The lock screen says "Searchng..."
Calls fail with the "Emergency Calls Only" message
SMS won't send
I get a "Service Unavailable" error when I choose Settings/Call/Additional Settings
WiFi is unaffected (and WiFi calling seems to work, though it has always been hit or miss)
Things I've already tried:
Checked relevant settings, APNs, etc
Checked the contacts on the SIM socket, all looks good.
Reset Phone to factory defaults
Replaced SIM (MetroPCS did this for free)
New phones are relatively cheap, but I don't have a burning desire to upgrade, so I'm hoping for another option.
I'm having this same problem. I left for an area with no service and came back to an area with service to find that my phone will constantly state Emergency Calls Only and no service. Does anyone have any suggestions?
Dears,
whenever I am on a call and then hang up or finish the call, I cannot surface the internet or even make a call after hanging up for a while. I can see that there are packets going to 4g but no reply "upward arrow but no downward arrow that is near 4G icon". It is sending data to 4g but not receiving any response and
also, after finishing the previous call I can not make a new call unless I switch on airplane mode and then switch off or restart my S8 to work normal again.
To revise and better understanding this issue:
1. the S8 works normal and can communicate to Internet and receives calls
2. the problems starts after ending a call, the S8 cannot communicate with the network for a while Internet and calls
3. temporary solution is to go to offline mode then online or restart the phone
4. then it will work fine "Boring Solution"
I am facing this weird problem since day1 with my samsung S8.
any advice?
No body has faced similar issue ?
I have no issues, on At&t.
I have no issues too. I roam a lot with data on. Different carriers within Asia. All ok.
Maybe try reset the carrier "access point names"?
Are you under power saving mode?
i got my S8 it worked fine in start (or i might have not noticed it) but then i observed it used to turn off sim cards (did not catch any signals) as i go out of 34 or 4g covered area. it did not work on 2g. i got i fixed from samsung care. and now i am having weak signal issue. Voila -_-. Going to get it fixed "AGAIN".
I have too signal problum internet and sim service. Very poor.. but when was i buy then it was perfect . After use 4 month its conditions make me very thankless. If any person who know about that issue plz help m
So i bought a second hand galaxy alpha phone. It was perfect in shape, no scratches or anything, meaning the phone was ell maintained.
The problem comes when im over LTE(4g) network. I try placing a call, it waits like 45 seconds and then it drops. i try calling for the second time and then after a couple seconds the signal drops to EDGE and start calling. after the call it stays a EDGE forever, unless I dial *#*#4636#*#* --->phone information--> set preferred network type: "LTE Only",....once signal shows LTE i can get it back to "LTE/CDMA/UMTS auto (PRL)" mode and keep surfing internet with 4g speeds.
Another related issue, if someone tries to call me when im over LTE, the phone doesn show any incoming call, but to the person calling, the call rings normally. So i dont get calls :S
I though it was a software related issue, so i rooted it and upgraded to andorid 7.1.2 lineage. but still the problem is the same. what shoud i do, i searched the internet and the answer is nowhere to be found nobody has this problem either