Exynos S10 takes a while to find network signal - Samsung Galaxy S10 Questions & Answers

My S10 takes a while to find mobile signal after restart or when airplane mode is turned off after turning on. A while here is at least a minute to 2. 60-120 seconds. I don't know this is happening all of a sudden. Happened yesterday while travelling. Also I had installed Cellular - Z and Wifi Man apps before this issue. I used Cellulaz extensively and suddenly now a new issue.
I am sure this was not an issue before. I did a network settings reset, cleaned cache and the mobile signal is really good. Now apps that I mentioned above are uninstalled too.
Anyone faced this issue before ?

Happens only on Roaming
This happens only when roaming and the time taken to find mobile signal is 1 minute . When on non roaming, signal is instantaneously found..within 5 seconds

IDK if it's related (probably not) but I've been noticing my US S10 has lost signal entirely and won't regain it unless the device is rebooted. Happened only twice (so far) but that's still 2 times too many.

Related

[Q] While in Europe: Moto X won't reconnect to cell data, post-WiFi use

Hey guys/gals -
I got my Moto-X a few weeks ago, and have been using it without issue on AT&T. Unfortunately, I'm just wrapping up my first trip through Europe with this phone (left my iPhone 5 at home), and I've noticed a very odd thing over the last week.
For some reason, my phone will not re-establish a cellular data connection once it has connected to WiFi (and subsequently disconnected from WiFi). I have noticed this - consistently - in both Germany and Italy. In all cases, once WiFi is no longer connected, I can see that the cellular data network is available (the 4G or E logo shows up, grayed out, next to the cell bars) but it will not reestablish. The only way to obtain a cellular data connection is to restart the phone.
I've tried going into airplane mode; I've tried cycling cellular data. Nothing I can think to try causes the cellular network icon ("4G" or "E") to cycle from gray to white...I simply cannot get back online without a full restart. But once I've restarted it works fine - so long as I don't jump on WiFi.
The phone isn't unlocked; it's an AT&T device, with no APN tweaks.
Anyone have any idea what could cause this behavior? Unfortunately, it's going to be another four or five weeks before I'm back here to test any ideas...but I figured I'd reach out while the issue is fresh.
Cheers.
Just to chime in, I've also seen this issue on mine, but it only happens with certain WiFi access points. After using the Cisco ones at work the problem occurs, but my Asus N66U doesn't seem to upset it.

AT&T S6 Edge losing network connection - Why?

Just upgraded from my M7 to the S6 Edge last Sunday. Since then the S6 has randomly disconnected from both voice and text service twice. The display indicates strong signal and that it's connected but no incoming calls or texts go through. The first time required a reboot to regain connectivity and the second time it took over 5 minutes before it returned. Attempts to make outgoing calls timed out with no connection. Do Not Disturb mode is off and the phone is provisioned correctly. There's no warning that this is happening until someone contacts me using an other method. Any ideas?
I would try a factory data reset. Whenever I've had problems that almost always fixed them. Make sure you back up everything since it totally erases the SD card. If that doesn't work, get a replacement.
I have a complaint out with ATT right now regarding my text messages. Weirdest thing ever - I'm NOT getting text messages at random times from random contacts on my phone but I AM getting them on MightyText, how odd is that? I can't imagine why this is happening, and they've asked me every question in the book all the way down to if my phone had any damage, water or otherwise.... I just got this thing, no it isn't broken!
Hopefully an update or something with figure it out
Try disabling VoLTE option
Has this been happening on your WiFi or mobile data or both? If on WiFi Check with your router it can potentially be dropping packets. Please specify
I have a Microcell and I've unplugged it to see if that was the problem. It was still connecting fine on wi-fi when it did this. I ran a packet loss test and after five minutes there was 0% loss.
Aside from the packet loss did you manage to measure the jitter on the line? Also when connected to the microcell are you surfing through the WiFi or is it using your mobile data still?
It's not jitter either. A 5 minute run all showed times of <1ms . When this occurred the phone had been idled for a few hours and just didn't seem to wake up. It seems to be confined only to voice and text service.
Sounds like your network is fine. Just have to see what att has to say about the smscreen and voice. By the way have you try turning off the volte (enhanced 4g lte) feature as well ?
Well....it just did it again. Definitely not a conflict with the microcell. It seems that once the phone is on and displaying for 3 minutes or so then it will start to work. I've disabled enhanced LTE to see if that makes a difference. It's done this about 48 hours apart now three times. I'm about to dump this thing back on AT&T. I'm beginning to wish I had gone with an M9.
Phone was replaced under warranty. The new one doesn't have this issue at all. Chalk it up to a bad sample.

Wifi stops working

After the May update every couple of days I find that my TA-1046 isn't connected to wifi anymore. When going into the wifi settings it can't find any networks. Occasionally it can see one of the neighbor's wifi but usually nothing. (Normally there are 10+ networks in range). Turning wifi off and on does not resolve the issue but after restarting the phone it always works fine again for a couple of days. I would like to think it's not a hardware problem since it consistently works again after a restart but on the other hand I haven't seen anyone else with this issue.
It happened to me once.
happened on me this night...after restart it back to normal

Mi 9 bad reconnection when low signal on mobile network

When I am using a mobile network (both 3G and 4G) and the signal is low, sometimes I lost connection (That's normal), but the stange thing is that phone don't reconnect soon and it remains offline. I have to manually reboot or enable/disable airplane mode... and the signal come back.
I'm using Mi 9 for about 5 months. I am on the last firmware and even on old versions same thing...
Anyone has got similar problems?
Hi i have also some problem with my connections, I am from Germany I got my Mi 9 since a week (Rom was Global Europe 10.2.30 EEU) now I have the Global Rom (10.2.13) but this is also no solution.
Sometimes it shows me a Network but I tried to call my girlfriend and it has no dailtone, also it shows me network but I can't receive calls, same problem I have with mobile data, it shows connection but then it isn't connect to the internet.
if I switch off the mobile data connection and switch it on then I have normal connection.
I hope there will be a fix in the next update....I heard that some people have that problem.
Mine loses signal sometimes on the subway but reconnects by itself in 30-60 secs, i find that a bit slow but overall I think it holds onto the signal better than the phones i had in the past. This is the type of issue that would be solved in 1 month at most but here we are, an update almost every 2 months that "optimizes" one thing and weighs in at 500+ MB.
Mine have the same problem. When I'm on the subway it lost the signal and when I go out to the street again I have to enable/disable airplane mode to get signal again, because it can't connect automatically like a normal phone.. I'm from Mexico and I have Global ROM 10.2.13.0
Enviado desde mi MI 9 mediante Tapatalk
I have a similar problem. Where I work the phone goes from 4g to 3g, to avoid this I open the phone settings 1 (by entering * # * # 4636 # * # * on the call keypad) and switch from lte / td-scdma / umts which is default option to only lte.
The problem remains the same when the phone loses the line and then finds signal again, because although there is signal after I do not receive photos or audio from wa or cannot I access the services of play store for example and I have to switch to default option again...
I'd like to know if there was a method to increase the power of the antenna module even just a little with root permissions ...
I have a similar issue, especially when I am driving car - I am from Germany.
When I start driving with Google Maps open (to have an overview of the traffic), after about 30 minutes my Mi 9 loses connection and won't reconnect, even if I switch on/off airplane-mode etc. This does not happen every time, but relatively often. To get back network connection I have to restart the phone.
About 2 days ago when I was home I lost connection again. Google Maps was still running. After closing the app my Mi 9 immediatly connected to network. That may have been coincidence, but next time I will close Google Maps if my phone loses connection again in the car and will report here.
I am on Xiaomi.EU 9.9.26 Android Q (I just installed *.27 v2), had the same issue on different Xiaomi.EU Android P releases.
Krazhil said:
I have a similar issue, especially when I am driving car - I am from Germany.
When I start driving with Google Maps open (to have an overview of the traffic), after about 30 minutes my Mi 9 loses connection and won't reconnect, even if I switch on/off airplane-mode etc. This does not happen every time, but relatively often.
Click to expand...
Click to collapse
It happened to me several times and I can't understand why ...
In this case the connection seemed to be good too, I had all the signal notches in Lte, but in reality it was absent.
I had to restart.
Known problem it seems...?
Hopefully Xiaomi will fix it soon.. wonder if custom ROMS have the same problem
Krazhil said:
I have a similar issue, especially when I am driving car - I am from Germany.
When I start driving with Google Maps open (to have an overview of the traffic), after about 30 minutes my Mi 9 loses connection and won't reconnect, even if I switch on/off airplane-mode etc. This does not happen every time, but relatively often. To get back network connection I have to restart the phone.
About 2 days ago when I was home I lost connection again. Google Maps was still running. After closing the app my Mi 9 immediatly connected to network. That may have been coincidence, but next time I will close Google Maps if my phone loses connection again in the car and will report here.
I am on Xiaomi.EU 9.9.26 Android Q (I just installed *.27 v2), had the same issue on different Xiaomi.EU Android P releases.
Click to expand...
Click to collapse
So, as I said I report back.
Today again after about 30 minutes my Mi 9 lost connection (0 bars). Again at about the same region. Probably the connection is bad there. However, my Mi 9 didn't reconnect even after few minutes (sometimes I waited 5+ minutes and IT didn't help).
I closed Google Maps and another App, which requires GPS. Nothing happened. Then I deactivated GPS from the quick menu and my Mi 9 connected immediately to the network with full bars.
I have "o2" as network provider.
Xiaomi.EU 9.9.27 v2 ROM.
enige1993 said:
I have a similar problem. Where I work the phone goes from 4g to 3g, to avoid this I open the phone settings 1 (by entering * # * # 4636 # * # * on the call keypad) and switch from lte / td-scdma / umts which is default option to only lte.
The problem remains the same when the phone loses the line and then finds signal again, because although there is signal after I do not receive photos or audio from wa or cannot I access the services of play store for example and I have to switch to default option again...
I'd like to know if there was a method to increase the power of the antenna module even just a little with root permissions ...
Click to expand...
Click to collapse
I changed to LTE only, and use it for some hours...
It didn't help. Same as before.
Thanks anyway
4Freedom said:
I changed to LTE only, and use it for some hours...
It didn't help. Same as before.
Thanks anyway
Click to expand...
Click to collapse
Yeah, I know, For me is the same.
When I lose connection I've to change to LTE, When it happen again, I've to do it again so I come back to default option.
I do this to avoid restarting the phone and to be faster, but the issue remain anyway...
But remember, When u're in "only LTE" option, you will not able to call
Workaround is change to 3G connection preference
Hi everyone!
I have the same issue and after lot of things that I have done, as change MIUI to Global version, now I can use 3G without problem, but if I try to use LTE/4G after some minutes using GPS in high accuracy, LET connection turns OFF.
So, my workaround is change to 3G connection preference when I need to use Waze, Maps or any other app high accuracy.
I have the same problem too, and I always have to reboot the phone to get the data/wifi to work again. But just a minute ago I had the same problem and I just killed all tasks in recents and the network came back without having to reboot. May be coincidence or I'm on to something.
From experience this problem should have disappeared for quite some time now.
I have always been using EEA ROMs. I believe I have not seen this problem at all in MIUI 12. It has been such a long time since I last saw the problem I don't really remember if this was fixed during the MIUI 11 era.
flickyamom said:
I have the same problem too, and I always have to reboot the phone to get the data/wifi to work again. But just a minute ago I had the same problem and I just killed all tasks in recents and the network came back without having to reboot. May be coincidence or I'm on to something.
Click to expand...
Click to collapse
flickyamom said:
I have the same problem too, and I always have to reboot the phone to get the data/wifi to work again. But just a minute ago I had the same problem and I just killed all tasks in recents and the network came back without having to reboot. May be coincidence or I'm on to something.
Click to expand...
Click to collapse
Which ROM/Firmware are you using?
Try disable and enable airplane mode instead of rebooting
seemebreakthis said:
From experience this problem should have disappeared for quite some time now.
I have always been using EEA ROMs. I believe I have not seen this problem at all in MIUI 12. It has been such a long time since I last saw the problem I don't really remember if this was fixed during the MIUI 11 era.
Click to expand...
Click to collapse
Exactly.

Question Wifi <-> Mobile switching?

I have this strange issue that has been with me almost since the beginning. I haven't been able to trace when it happens, but it now seems almost 100% of the time.
I only have WiFi in the house (wifi6, if it matters). If I go out, I only have 4G (I left only 4G and disabled 5G). I have no data until I put the phone into airplane mode and back, or I disable and re-enable mobile data.
Same thing when I go back in the house: no data until I disable and re-enable WiFi.
I've disabled the option for 'always-on mobile data' or similar, it's quite a battery drain if there's no cell signal.
Seems like a very strange bug, I don't have this with any of my other phones.
So you have both WiFi and 4G enabled and they don't switch seamlessly?
Exactly. I always have to restart each one of them, usually by toggling airplane mode. Was wondering if anyone else ran into this issue.
Ok this really is strange. There are 2(!) different toggles to enable data switching between WiFi and 4G, but for me it works flawlessly without them! As soon as I get out of my home WiFi range, 4G kicks in, and when I get in range again, the phone connects to my WiFi...
Hi, i have this problem too but it's not always.
I have a wifi 6 router too.
I also have problems switching from wifi to 4g. Need to toggle airplane mode on/off. 5g deactivated. No wifi 6 here.
I always assumed my vpn is causing problems during the switch to 4g. But hearing others have the same problem i would assume its zenfone problem.
I never had any issues in this area with my ZF8. With the option to have cellular always on I could walk out of my WiFi zone during a video call and no drop or short pause would appear.
With this off the network need a few second to work, and some apps need to be refreshed/restarted to gain connection. Never needed to toggle connection for this to work.
Maybe a reset would be enough or check for updates.
Ah, exactly! It does not necesarily need a network restart, but some apps just lose connection for a while, which can be from a few seconds to >1h. Which is even more weird as the icons are showing full connectivity. I would go out of the house, do stuff, come back later and I would only get the notifications when I'm back inside the house.
Rarely I had the connection drop completely (no signal) when switching, but I haven't noticed this happening since the last update.

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