Hello
I searched and searched for this issue and i can't seem to solve it on my N9005
The phone has the following behavior (controlled with GSM Signal Monitoring app):
While not touching the phone
Full or Medium Signal
Suddenly No Signal or Emergency Call only
After some seconds (or in some cases minutes) Full or Medium Signal again
This can happen several times within minutes or a few hours without happening
While trying to make a phone Call:
Full or Medium Signal
I press CALL
Immediately No Signal or Emergency Call only
Signal comes back
I press CALL
Immediately No Signal or Emergency Call only
This happened sometimes 5 times in a row, other times i can just make a call normally. Technichal support say they don't even have logs of the missed attempts.
What i did already:
Asked for second Sim card - same issue
Installed several TW Legit roms - same issue
Installed several CM12.1 roms - same issue
Imei is ok, EFS is ok (i think)
One strange thing i saw was that GSM Signal Monitoring only "Sees" me connected to one antenna.
When i placed my Sim card in another phone the app logs me always connected to 2 or 3 antennas at the same time.
Update 1: Also, something I just noticed, since this started happening I don't remember seeing the 3g symbol while browsing the internet. It's either edge, hspa or lte, never 3g, which was my usual connection speed.
Update 2: I inserted a different provider sim in my phone and it connects in umts
Update 3: my sim works without connection drops in a gsm only phone
Does anyone know what is going on? Thanks!
N9005 have very bad modem.....
Related
I have the following problem, when I power on my HTC HD2 sometimes does not detect a signal with two different SIM with two different providers. At other times it detect the signals with both SIM. If signal is detected after a time it loses signal (voice and data) and sometimes the signal return after a few minutes, in other cases it is necessary to reset the device. When I reset the device is no guarantee it will function, is a very random problem, both SIM work on another old device (no hd2) without problems. Normally, when it detect signal I can make calls, and after a few minutes the device can not make calls, falls silent and after a while you hear a busy tone, nor are incoming calls.
What could be damaged?
Hello,
Does this happen anywhere or always in teh same area?
From my side, I have a lot of problem to have some signal but I realized it was because my area was far from an antenna (even if being in a big town).
If you problem happens anywhere then, I would recommend to flash your radio: http://forum.xda-developers.com/showthread.php?t=611787
Hello.
I have a similar problem - sometimes i also lose my signal. At first i thought that it was random but then i discovered that i have good 3G signal but when i go somewhere where there is only 2G i have no service. this also happens every time it try to switch to "2G only".
I started noticing it after flashing Hyperdroid 3.0 NAND android on my phone in the place of Hyperdroid 1.04 (although i'm not sure it has anything to do with the NAND rom). I have tried flashing many different radios (2.08, 2.12, 2.15) and also different roms - both android and also the original WM6,5 rom.
If anybody could suggest something i would be very grateful.
task29, wipe all cashes & use more stable ROM
Dial *#*#4636#*#* phone information Set prefered network to GSM only, (or CDMA only)
Also press menu and select your band, rather than using automatic
I have an S5 that when next to 3 other phones in my house receives no signal (data or cell). I have to walk completely outside and its still spotty. Could it have bad antennas? and if so is it just the wire antennas or is there another piece that receives signals?
Past history: stopped using this phone probably 8-12 months ago because of this problem and now just did a factory reboot and re register on the network. and up until the factory reboot the phone wouldn't even register itself on any network or connect to any service even though it showed signal bars. It would either start to make a call and long pause and hang up or just go straight to an "emergency calls only" pop up. When looking on the about phone and status page there wee no registration on the status page.
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
hi everybody,
My Xiaomi MI A1 32GB lost data connection several times a day. I have only a visual notification - X symbol within signal strength bar(not above like should be in this case). This symbol in general is regarding roaming connectivity, but i am at my home network. When i enter in Settings and deactivate/activate the SIM, the data starts again. All the time i dial and answer the calls, it is only related to data connection in my home network.
Any idea how to fix it in other way, may be to install network signal booster app?
This is an Android 8.0 bug, not a phone one, right?
Regards,
I've had the same issue when using two SIMs. To fix the issue temporarily, I switched to flight mode for a few seconds, then it worked for a while.
Now I've switched of the second SIM card and since then the issue never happened again. So if you don't need two SIMs, I'd suggest to turn one SIM off temporarily till the problem is fixed. Maybe it is already fixed in the February update.