So I'm not connected to any network, Edge or 3G. This happened a few days ago, and I guess to a few number of people too on HowardForums. Well it happened again last night, and it still happening now. Fortunately I have wifi here, but still no data network. Anyone know about this/why this happens?
May be a problem with your SIM card. Older SIMs can create problems with getting on a Network. My phone would drop its data connection all the time in a known good area (my work consistent 3G), swapped out my 5-6 year old SIM for the one packaged with the G1 and viola! no probs since.
i have the same problems happen to me about 4 times already and i just got this sim card less then a month ago
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Ok, I'm going to give you guys the whole background story just to cover all the bases.
I've had a Nexus S for about 6 months, never had a hitch. Rooted it, etc etc all fine and dandy.
About two weeks ago, I updated it to CM 7.1 RC1. So far so good.
I've always had the same Vodafone SIM card, which has accompanied me through a couple of phones. Last week, I went to London and bought a UK pay as you go card, to use data without roaming. Perfect. No problems whatsoever.
So, to make it clear, I never had problems with my original (portuguese) SIM card, nor with the british one I had just bought.
However, it was upon my return that I realized I had forgotten my SIM card at my friend's house. I quickly stopped by the Vodafone store at the airport, where they promptly gave me a new SIM, ready to use within a couple of hours.
Since then, my phone after a short period of being on, spontaneously fails to detect the SIM card/no longer recognizes it. I've tried scanning for networks in the settings, but it won't let me register again. It takes a reboot to get it working. Thing is after a couple of minutes or hours, it happens again.
I have since exchanged the new SIM card with a newer one , also from Vodafone, albeit a different store. Yet, the problem persists.
I didn't alter any settings between Portugal-UK-Portugal, so everything should be exactly the same. Does anyone know how to solve this or why this happens?
Faulty phone?
Faulty radio?
Faulty SIM cards?
ROM bug?
Any help is appreciated.
I took a nexus 5, 6 months back, i had updated it to 4.4.4. Since yesterday it ws behaving wierdly. My network would just drop and then upon searching for networks under mobile networks, i was able to reconnect bt suddenly it jst stopped working. i wasnt able to connect to any cellular network on any sim card whereas the same sim card was working on other devices. even on searching for mobile networks i couldnt find anything. i tried every possible thing, i switched to android L, and even downgraded my phone to 4.4.2 bt absolutely nothing worked (i knw that means unlocking my bootloader and i have lost warranty but i had to try something). please help me out, this is getting toooo annoying (P.S i dropped my phone once, got a very minor bump, is there by any chance a hardware issue due to that?) it is connecting to wifi network and bluetooth perfectly
If you've flashed a clean stock image, then unfortunately it's likely hardware. Antenna may have been damaged when it was dropped.
Or its a carrier issue. Or Sim. Did you try a friends Sim that's the same size?
I've been having fun same problem got the past week or so. I'm on T-Mobile and I have had no service, or service dropping to "H." Mostly it's just no service, then "low" service.
Hi,
I initially started with a OnePlus One and it came to a point where I would lose reception (Both data and mobile) maybe once an hour. The only fix was to restart the phone. I got fed up with it so I ended up getting a new phone, the Samsung Galaxy S7. It's been 3 days and I haven't found any problems, however, this morning I found my phone to have no reception. I restarted it and it started working again.
Could this be a SIM card problem? WiFi works fine.
Thanks
Not sure about the OPO but i had this happen to me where i lost reception for no more than 30s.
For you to restart the phone to get a reception is news to me and honestly have no idea.
I don't know how easy it is for you but with my operator it is very easy to just pick up a new sim card and ether have the shop to register the new card or do it by myself online. If the card is the same as the one you used with the OPO a new card would be the first thing to test. I have heard of lost reception problems were a sim card has been the culprit.
TastyBiscuit said:
Hi,
I initially started with a OnePlus One and it came to a point where I would lose reception (Both data and mobile) maybe once an hour. The only fix was to restart the phone. I got fed up with it so I ended up getting a new phone, the Samsung Galaxy S7. It's been 3 days and I haven't found any problems, however, this morning I found my phone to have no reception. I restarted it and it started working again.
Could this be a SIM card problem? WiFi works fine.
Thanks
Click to expand...
Click to collapse
Is it the same SIM card from both phones?
Something has to be the same between them, either the SIM, or if it is a different SIM, then your location / surroundings / interference
*Detection* said:
Is it the same SIM card from both phones?
Something has to be the same between them, either the SIM, or if it is a different SIM, then your location / surroundings / interference
Click to expand...
Click to collapse
Same SIM card. My location and surroundings don't affect when I lose reception. It just seems to be random. Both me and my girlfriend have the same carrier (Kodoo). I'd be sitting by my desk for a couple hours and have full bars and suddenly lose reception. Then restart my phone and I get reception back.
TastyBiscuit said:
Same SIM card. My location and surroundings don't affect when I lose reception. It just seems to be random. Both me and my girlfriend have the same carrier (Kodoo). I'd be sitting by my desk for a couple hours and have full bars and suddenly lose reception. Then restart my phone and I get reception back.
Click to expand...
Click to collapse
I'd request a SIM replacement, see if that fixes it, unlikely to be the phone if you have two with the same problem using the same SIM
Hello.
I bought this phone about an week ago, and after two days i noticed that i couldn´t make or receive phone calls, after a litte bit of research i noticed that the phone only has network signal on 4G areas and when i try to switch to 3g or 2g it takes a lot of time (about 2 minutes) or most of the time it doesn't get any signal.
I´ve already done 2 factory resets , switched the sim card and i still cant make calls.
Is there any way to solve this?, because if i activate the warranty it will take a lot of time to get my phone back.
Miguel_j said:
Hello.
I bought this phone about an week ago, and after two days i noticed that i couldn´t make or receive phone calls, after a litte bit of research i noticed that the phone only has network signal on 4G areas and when i try to switch to 3g or 2g it takes a lot of time (about 2 minutes) or most of the time it doesn't get any signal.
I´ve already done 2 factory resets , switched the sim card and i still cant make calls.
Is there any way to solve this?, because if i activate the warranty it will take a lot of time to get my phone back.
Click to expand...
Click to collapse
Seems like manufacturing defect. I guess you would have already tried network mode and automatic search.
I have a dual sim setup, one on Telstra and one on Vodafone. At random intervals and probably at least 5 or 6 times an hour both Sims will disconnect...the signal icons show no signal. After a few seconds the signal returns to full strength....I'm sure this has only started happening since upgrading to 10 but I can't swear to it.
Does anyone have any ideas?
Cheers
So I found the solution. My company has recently mandated work profiles and uses VMware MDM.. The dropping has been ever since I installed this. Uninstalled and got rid of the work profile and now it's working again....