On a regular basis (at least once a day), I lose Network connectivity.
The Upstream/Downstream arrows disappear, but I still have 4-5 bars.
Happens Indoors & Outside
Applications report no Network available.
I don't have any power saving apps that disable networks
Android Power saving is disabled.
I'm on 4.1.2, (Vodafone Stock ROM, Unlocked) and this has been happening for a while - from ICS 4.0.1, I believe.
I switched from T-mobile to GiffGaff (O2 UK), but I can't remember if this was happening before the switch.
Unable to make call ("Not registered on Network") when this happens.
Sometimes a toggle of the "Mobile Data" button works, sometimes toggling to "Flight mode" works.
More often than not, this requires a restart. Always fixes it immediately,
Other O2/GiffGaff users are unaffected, so not a network issue.
Any idea if this is an S3 issue, a GiffGaff (O2) issue (any other sufferers on different handsets), or a combination of both?!
Cheers
Sean (En_croute)
Ask your provider for a new SIM, might be SIM problem
Check your O
2 network coverage where its a problem .
You should also check you are using Giffgaff settings in mobile networks .
JJEgan said:
Check your O2 network coverage where its a problem .
You should also check you are using Giffgaff settings in mobile networks .
Click to expand...
Click to collapse
Setting changed earlier today (Proxy & Port details)
Still dropping off (this evening)
It's not a network issue (other users & instant restoration on reboot), so any ideas folks?
Are you using any power saving apps?
slaphead20 said:
Are you using any power saving apps?
Click to expand...
Click to collapse
No
"I don't have any power saving apps that disable networks
Android Power saving is disabled"
Related
Hi, how to set my galaxy s2 permanently in WCDMA only Mode, not in WCDMA prefereed.
In menu option is missing.
I change WCDMA only whith *#*#4636#*#* , but to close security menu galaxy S2 auto change mode to WCDMA prefereed :crying:
how to fix it?
Madboy128 said:
Hi, how to set my galaxy s2 permanently in WCDMA only Mode, not in WCDMA prefereed.
In menu option is missing.
I change WCDMA only whith *#*#4636#*#* , but to close security menu galaxy S2 auto change mode to WCDMA prefereed :crying:
how to fix it?
Click to expand...
Click to collapse
1. Disable Mobile data, then wait for 3-5 minutes
2. Enter Service mode, then change network to WCDMA only, repeat it like 2 times.
Done.
Correctly good luck...
Enviado desde mi GT-I9100 usando Tapatalk 2
my problem is described here -Can others be so kind as to verify if they are also having an issue with receiving voice calls or SMS while their phones are using the 2G network for data access. (3G and wifi either unavailable or turned off.)
We have this issue with Orange and I have tested it on one Sunrise iphone4 and we had the same issue. Which is not surprising since Orange and Sunrise are operated by the same staff. It does work correctly over Swisscom.
I raised this case with Orange over one month ago and they still have given me no concrete feedback as to why their network behaves like this.
(FYI this is a network issue and not related to any phone configuration).
Feel free to harass Orange about this. It might get them to pull their fingers out a bit. When I raised the case it took me about 10 calls to their support plus 2 visits to Orange shops to finally get a technician who was capable of understanding this simple but critical issue.
EXACT STEPS LEADING TO PROBLEM:
1. Force phone to use GSM (2G) mode only or be in an area with no 3G coverage, or if your phone chooses to use the 2G network
2. Disable switching to wifi:
3. Connect to 2G packet data, download email or download webpages: Status Bar-> spinning wheel
4. While packet data is connecting, using another phone place a call to your phone
5. After packet data has connected, using another phone place a call to your Phone
EXPECTED OUTCOME:
You expect the packet data connection to either DROP or be SUSPENDED (depending
on network capabilities) and for the phone to ring indicating an incoming call or SMS.
ACTUAL OUTCOME:
The packet data connection persists and remains active; the phone does not ring
and the call is handled by the network as if the phone was unreachable (for most
users this means forwarding to voicemail).
REPRODUCIBILITY:
always; no exceptions.
This has been tested extensively on the Orange network by me and many other users.
Tested devices which all show the same issue, iPhone4, iPhone3GS, Iphone 3G, several Android models.
Good day y'all,
I have a problem with the mobile connection on my phone, which is a Samsung Galaxy S4 (i9505) with CM10.1.
The mobile connection only works for a couple of minutes when i reboot the phone. After that time, it says "Offline" or "No network connection". I can still do phone calls though, so the connection to the celltower is still established.
APN settings are correct.
Data enabled is ticked
Data roaming is ticked (I need this, because my provider is using the mobile network of another provider)
Turning aeroplane mode on/off will not solve it.
Re-enabling data/-roaming will not solve it.
Switching to 2G mode will not solve it.
Searching for network again will not solve again.
Only reboot solves it.
Any idea what is going here? It's quite annoying.
Thanks.
Just reflash your rom.
Doesnot help. I am flashing the ROM almost daily plus i erase all caches.
*bump*
Now i tried the following:
Using the SIM card of my wife (different provider) -> no problem
My SIM card in my wife's phone -> no problem
My SIM card in my phone -> only working for two minutes.
I tried to modify the spn-conf.xml file by adding
<spnOverride numeric=”23212? fake_home_on=”23201?/>
so that the network is not seen as roaming network.
Still not working.
Now i changed the MCC/MNC to 23201.
Also not working.
Any idea what else i can modify?
My venerable Samsung Galaxy S i9000 (rooted, Android 4.2.2 using CyanogenMod 10.1.2 ROM, on Virgin UK) has always served me very well when roaming abroad, and up to last year I had no problems with data connections. I'm just back from France, and could not get any data connection for the entire 2 weeks I was away (I bought a travel pass of course, and got confirmation of validity). This is totally unprecedented. I spent hours on the phone (calls and texts were OK) to Virgin, who variously said they needed to refresh my account settings at their end, then that there were known European network issues, and then that the problem was with the phone. I was told to turn on international roaming, but I don't have that option. The options at Settings>networks>mobile networks are:
Data enabled - ticked
Data roaming - ticked
National data roaming - ticked
Access point names
Use only 2G networks - unticked
Network operators
I don't have anything called international data roaming, and indeed have never seen this on any Android version I have ever had. I have seen images of other phones where `data roaming' is replaced by `international data roaming', and I'm sure there is no technical difference. Roaming is roaming surely?
I am very suspicious that there is actually nothing wrong with my phone, and that something odd is going on with Virgin. The reason is that last year I was running Android ICS using a different ROM, and mobile data kept turning off. This went on for over a week until Virgin found it was their fault and fixed it. At that time they never mentioned international roaming. I've done the usual searches and not turned up anything useful. There can't be anything wrong with the handset because data access turned straight back on when I got back to the UK. Can anyone shed any light?
Hmm. Calls and texts were working though, just not data? And it wasn't an APN setting? I'm assuming they had you check those. Did it show you were connected to data but there was no data transfer? In Settings > About Phone > Status - what would it say? Disconnected? You've used the phone on that other network before? It's possible that the other carrier's data frequencies aren't supported by the phone.
es0tericcha0s said:
Hmm. Calls and texts were working though, just not data? And it wasn't an APN setting? I'm assuming they had you check those. Did it show you were connected to data but there was no data transfer? In Settings > About Phone > Status - what would it say? Disconnected? You've used the phone on that other network before? It's possible that the other carrier's data frequencies aren't supported by the phone.
Click to expand...
Click to collapse
Yes they got me to check all settings and all were OK, except that according to Virgin there should be this `international data roaming' option which I don't have. The signal strength icon on the home screen showed a little R not a little H as normal. So I don't think there was any data connection. My key question though is whether there is any evidence at all that rooting affects roaming. I've been searching the web for over a week and found nothing about that. Frankly I don't believe it.
Phone specs out of the way first: GT-i9300, Android 4.3 (via OTA), sim unlocked, not rooted, Baseband i9300UBUGNF1, Kernel 3.0.31-2320216, and the IMEI matches the frame.
So I've got a problem that's very similar to a lot of other people with one or two exceptions. I get the "Mobile Network Not Available" error message and I've tried the suggested fixes except for the Ariza patch and I haven't tried changing my modem. I don't want to jump into either of them yet because I'm not sure my problem is the same as all the others. Here's why:
When I go to set the network manually via Settings > More Networks > Mobile Networks > Network Operators > Wait till your device is searching for operators. Once the search is done it will show a list of Network Operators ... Nope, not mine. Mine shows nothing and goes right back to the menu showing Search Networks and Select Automatically. Tapping Search Networks brings the same result. If I set the Network Mode on the previous menu to GSM only, it takes less time to search, but still returns nothing.
Also, I don't have any bars. Not as in having bad signal, but as in there is no signal strength indicator in the status bar. Instead, I have a circle with a line through it next to the battery level indicator. I can not even make emergency calls with the phone.
I haven't found anyone with this particular problem yet, even though I've been searching all day. Perhaps I'm not searching for the right thing?
I've tried an old ATT sim and an active GivMobile sim, both with the same results. Both sims will register networks on other phones. I started out on 4.1.2 and did the OTA updates to get to 4.3 with no change in symptoms. I did a factory reset before doing the updates. I've never had a custom ROM on the phone. The IMEI doesn't show up as blacklisted on any site I used to check it. I even went as far as replacing the SIM card reader.
Could my antenna be bad? Could I have the wrong modem for the networks I'm trying to get onto? Any opinions or direction would be greatly appreciated.
DrvLikHell said:
Phone specs out of the way first: GT-i9300, Android 4.3 (via OTA), sim unlocked, not rooted, Baseband i9300UBUGNF1, Kernel 3.0.31-2320216, and the IMEI matches the frame.
So I've got a problem that's very similar to a lot of other people with one or two exceptions. I get the "Mobile Network Not Available" error message and I've tried the suggested fixes except for the Ariza patch and I haven't tried changing my modem. I don't want to jump into either of them yet because I'm not sure my problem is the same as all the others. Here's why:
When I go to set the network manually via Settings > More Networks > Mobile Networks > Network Operators > Wait till your device is searching for operators. Once the search is done it will show a list of Network Operators ... Nope, not mine. Mine shows nothing and goes right back to the menu showing Search Networks and Select Automatically. Tapping Search Networks brings the same result. If I set the Network Mode on the previous menu to GSM only, it takes less time to search, but still returns nothing.
Also, I don't have any bars. Not as in having bad signal, but as in there is no signal strength indicator in the status bar. Instead, I have a circle with a line through it next to the battery level indicator. I can not even make emergency calls with the phone.
I haven't found anyone with this particular problem yet, even though I've been searching all day. Perhaps I'm not searching for the right thing?
I've tried an old ATT sim and an active GivMobile sim, both with the same results. Both sims will register networks on other phones. I started out on 4.1.2 and did the OTA updates to get to 4.3 with no change in symptoms. I did a factory reset before doing the updates. I've never had a custom ROM on the phone. The IMEI doesn't show up as blacklisted on any site I used to check it. I even went as far as replacing the SIM card reader.
Could my antenna be bad? Could I have the wrong modem for the networks I'm trying to get onto? Any opinions or direction would be greatly appreciated.
Click to expand...
Click to collapse
flash Modem DDEMG2.zip to get your imei. Then flash Patched_XXUGMK6_modem.zip to get mobile signel :good:
Modem DDEMG2.zip - http://d-h.st/2mC6
Patched_XXUGMK6_modem.zip - http://d-h.st/j3h
DrvLikHell said:
Phone specs out of the way first: GT-i9300, Android 4.3 (via OTA), sim unlocked, not rooted, Baseband i9300UBUGNF1, Kernel 3.0.31-2320216, and the IMEI matches the frame.
So I've got a problem that's very similar to a lot of other people with one or two exceptions. I get the "Mobile Network Not Available" error message and I've tried the suggested fixes except for the Ariza patch and I haven't tried changing my modem. I don't want to jump into either of them yet because I'm not sure my problem is the same as all the others. Here's why:
When I go to set the network manually via Settings > More Networks > Mobile Networks > Network Operators > Wait till your device is searching for operators. Once the search is done it will show a list of Network Operators ... Nope, not mine. Mine shows nothing and goes right back to the menu showing Search Networks and Select Automatically. Tapping Search Networks brings the same result. If I set the Network Mode on the previous menu to GSM only, it takes less time to search, but still returns nothing.
Also, I don't have any bars. Not as in having bad signal, but as in there is no signal strength indicator in the status bar. Instead, I have a circle with a line through it next to the battery level indicator. I can not even make emergency calls with the phone.
I haven't found anyone with this particular problem yet, even though I've been searching all day. Perhaps I'm not searching for the right thing?
I've tried an old ATT sim and an active GivMobile sim, both with the same results. Both sims will register networks on other phones. I started out on 4.1.2 and did the OTA updates to get to 4.3 with no change in symptoms. I did a factory reset before doing the updates. I've never had a custom ROM on the phone. The IMEI doesn't show up as blacklisted on any site I used to check it. I even went as far as replacing the SIM card reader.
Could my antenna be bad? Could I have the wrong modem for the networks I'm trying to get onto? Any opinions or direction would be greatly appreciated.
Click to expand...
Click to collapse
"(via OTA)" means you have samsung's original ROM?
Reflashing a Samsung-based ROM fixed my IMEI problem some months ago. I don't know if you are on a custom or original ROM, if it is a custom ROM I believe that you already know the process...
Revolution HD 53 is a great custom samsung-based ROM and fixed my issues. Be careful on what you flash, if you're going to do this
Im having the same problem as you had. Just wondering if you found out how to fix your phone. Ive a samsung j3(2016) SM-J320FN. Got a new sim the other day and have been trying everything to get service, restored to factory setting but nothing seems to be working. Like you nothing came up in network operators. Sim works fine in other phones. If anyone can shead some light on the suituation please feel free to reply
I'm in the UK, I have been using the phone for a few days now and I'm finding that it often gets stuck on 2G even when there is 4G available. The only way I can get it back on 4G is to go into the SIM settings and manually search for my provider.
Had anyone else had this problem?
Dial *#*#4636#*#* and set this option= "WCDMA/LTE" manually.
tahmidshafi said:
Dial *#*#4636#*#* and set this option= "WCDMA/LTE" manually.
Click to expand...
Click to collapse
Nothing happens when I dial that, it just disappears off the screen.
You can set it to 4G/5G Manually and it'll change to 2G if you're in a remote location!
George Charlie said:
You can set it to 4G/5G Manually and it'll change to 2G if you're in a remote location!
Click to expand...
Click to collapse
I'm not remote it;s happening in areas with full coverage.
yeh989 said:
I'm in the UK, I have been using the phone for a few days now and I'm finding that it often gets stuck on 2G even when there is 4G available. The only way I can get it back on 4G is to go into the SIM settings and manually search for my provider.
Had anyone else had this problem?
Click to expand...
Click to collapse
Did you ever find a solution? I'm having the exact same issue here in Denmark on a Samsung S21 Ultra (Android 12) and S22 Ultra (Android 12 and also after upgrading to Android 13)
Dialing *#*#4636#*#* had no effect (just hangs up)
Only manual remidy besides waiting 4-6 minutes, is the one you suggested by searching for other network OR entering flight mode.
Seems to be related to roaming between masts, it doesn't happen when I'm in one location but always when in a bus/train/car, my iPhone 12 with a sim from the same carrier stays perfectly connected throughout (or quickly reconnects to 4G/3G when the signal is back)
Super weird...
torvalstrom said:
Did you ever find a solution? I'm having the exact same issue here in Denmark on a Samsung S21 Ultra (Android 12) and S22 Ultra (Android 12 and also after upgrading to Android 13)
Dialing *#*#4636#*#* had no effect (just hangs up)
Only manual remidy besides waiting 4-6 minutes, is the one you suggested by searching for other network OR entering flight mode.
Seems to be related to roaming between masts, it doesn't happen when I'm in one location but always when in a bus/train/car, my iPhone 12 with a sim from the same carrier stays perfectly connected throughout (or quickly reconnects to 4G/3G when the signal is back)
Super weird...
Click to expand...
Click to collapse
I actually changed to a different network provider and the issue went away, I suppose the phone just doesn't work well with particular suppliers.
yeh989 said:
I actually changed to a different network provider and the issue went away, I suppose the phone just doesn't work well with particular suppliers.
Click to expand...
Click to collapse
Thank you! I'm currently doing the same experiment, so far (only a week) it seems to be better also. Super weird...