Is anyone else having this problem?
I've got a dual SIM SGS6 from Expansys AU (based in HK). I've got a new nano SIM card in SIM1 slot, SIM2 is empty. I've transferred my service across to the new SIM and confirmed (using an adaptor) that I can get 4G service fine on my Nexus 5.
However on my SGS6 it only shows 3G, H or H+, never 4G. I also find that every few minutes the data connection goes completely. I happened to be in the dual SIM menu at the time and noticed it went from showing only SIM1 being present to both SIM1 and SIM2 being lit up - as you can see this corresponds with the phone showing 'no signal' in the notification tray. It also keeps on sometimes showing the message "When changing SIM Card, Data service slot also can be changed. When you want to change Network mode, please go Mobile network menu and change it." (poor grammar all Samsung's!)
Has anyone seen this before or is it going to be a case of having to ship it back to them?
alanjrobertson said:
Is anyone else having this problem?
I've got a dual SIM SGS6 from Expansys AU (based in HK). I've got a new nano SIM card in SIM1 slot, SIM2 is empty. I've transferred my service across to the new SIM and confirmed (using an adaptor) that I can get 4G service fine on my Nexus 5.
However on my SGS6 it only shows 3G, H or H+, never 4G. I also find that every few minutes the data connection goes completely. I happened to be in the dual SIM menu at the time and noticed it went from showing only SIM1 being present to both SIM1 and SIM2 being lit up - as you can see this corresponds with the phone showing 'no signal' in the notification tray. It also keeps on sometimes showing the message "When changing SIM Card, Data service slot also can be changed. When you want to change Network mode, please go Mobile network menu and change it." (poor grammar all Samsung's!)
Has anyone seen this before or is it going to be a case of having to ship it back to them?
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Click to collapse
Aren't the dial sim versions intended for the Chinese markets? If that's the case, you may not have the correct LTE radio bands for where you live.
Doesn't seem to be that - the bands fit according to the specs and at some points it does connect properly to 4G/4G+ - it just doesn't hold it
Maybe damaged SIM??
Don't think so - it's a brand new Nano SIM direct from the network and works stably in 4G on my Nexus 5 (with a nano to micro adaptor).
Managed to get 4G/4G+ working for a while yesterday and today, but has now stopped working again.
Get a message everytime the phone boots re. network manager (as posted in OP), which doesn't seem right to me. Also finding it still drops all network connections from time to time and even switched off totally at one point today. I've gone back to the retailer requesting a return either for full refund or exchange for replacement.
What was the outcome?
alanjrobertson said:
Don't think so - it's a brand new Nano SIM direct from the network and works stably in 4G on my Nexus 5 (with a nano to micro adaptor).
Managed to get 4G/4G+ working for a while yesterday and today, but has now stopped working again.
Get a message everytime the phone boots re. network manager (as posted in OP), which doesn't seem right to me. Also finding it still drops all network connections from time to time and even switched off totally at one point today. I've gone back to the retailer requesting a return either for full refund or exchange for replacement.
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Click to collapse
Thanks for your posts Alan I am having similar issues with 1 day old Galaxy S6 dual sim in Australia with Telstra.
- Phone loses connection to carrier (both) from time to time - especially if in the sim manager screen but also just randomly
- It looks like it is seeking a network - like polling through different bands
- if i watch it for a while i can often catch it doing this
- on 4 occasions in a day this has then reboot the phone
- it has not yet dropped out during a call - not sure if this is just luck
- I am asking for it to be declared DOA but not sure how that will go yet
I was wondering if you returned or swapped your phone or found a fix.
Thanks
Dodgyd-AU
Sadly that sounds pretty similar to my experience I ended up returning it (although am having ongoing issues with the retailer, Expansys, in getting a full refund!) and subsequently bought a single SIM model direct from Samsung.
Related
Have (2) Sensation 4G's. Today one of them went to No Service, and nothing I do will get it out of this mode. Flipped SIM's, housings, reflashed firmware/radio, and still get nothing. It popped back into service a couple times and then went back to No Service. Now the phone is getting warmer at the bottom (between SIM and screen) so I've pulled the battery. When I go to scan for networks, it shows T-Mobile and AT&T. If I select either one I get "Your SIM does not allow a connection to this network" or something to that effect. The SIM for this phone is fine in mine. I've found a number of threads with similar reports but none of them mention a resolution.
Main question, I suspect a dead radio in the phone or other hardware defect. Is there anything else I can try to resolve this before taking it in for service?
Thanks.
You may want to give the provider a quick call to make sure the SIM card was not removed from their account by accident. I had this situation happen when I needed to switch out a burned SIM card and the CSR did not put the new SIM into the systems.
Bar that... send it in for service.
If you are using a custom ROM, did you select the T-Mo US support when you flashed it?
I have a Samsung Galaxy S3 (SCH-I535) that I was trying to resurrect as a WiFi hotspot and found that I have a couple of issues here that I never had before.
First off, I've tried putting in different SIM cards trying to activate it and the crazy phone will not read any of the SIM cards that I put in it. Before anyone asks, I did make sure that the card was installed properly. It doesn't matter if I put in a Verizon or Straight Talk SIM card. Neither one works. I always get the pop up box telling me that I need to insert a SIM card even though I have already put one in.
Second issue that I have been having recently is that anytime I take out the battery in the S3 (either to replace SIM card because it's easier to replace SIM card with the battery out of it) or to put in another battery, I lose the current date and time in the phone. Always goes back to noon on January 1st. This one is just pure irritating to me.
These issues just came up in the past few weeks and I'm tempted to just chuck the phone if I'm not able to get these issues rectified. Any help I can get on this would be greatly appreciated.
Cindy
Sounds like you need to have the phone activated. Not sure about the SIM issue, but all phones get the time from the cellular network when they're powered up.
ScottDB said:
Sounds like you need to have the phone activated. Not sure about the SIM issue, but all phones get the time from the cellular network when they're powered up.
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Click to collapse
I've tried that but I still get the SIM Card message coming up even though I have inserted it. I thought that the phones get the time from somewhere and this week is the first time that I've had the issue with the phone losing the date and time once I change out the battery.
Cindy
For your sim issue this setting maybe help you
Goto Setting>More settings(in wireless and network tab) >Mobile Networks>Network mode
Tap on Network mode and Select this option : Global
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
A few days ago this occurred. At that stage I had CM13.1 running. I had not undertaken any new updates.
On Monday I was able to receive and make calls with both SIMs.
On Wednesday I noticed that the second sim wasn't showing up with a signal on the home screen.
Researched and checked the hardware which all came back as OK. I switched the sims into another phone and they work fine on them.
I am now on LOS 14.1 and still face the same issue.
I have noticed that if I toggle off or on the mobile data between phone providers this will allow phone signal to be established, but I lose the signal in the other sim
has anyone experienced anything similar in the past?
If so, would anyone be able to assist in resolving this issue?
Attached are some screenshots of what it looks like for me.
With thanks.
Put your SIM 01 to SIM 2 tray & Sim 2 to SIM 1 tray
then try
Alright, so a little back story on the problem i'm having:
I've got a Mofi4500 SIM4 wireless modem with service from an MVNO using T-Mobile's network.
The service worked great for the last several months despite a video throttling issue. Long story short, i determined the Phone number associated with the SIM was being throttled either the MVNO or T-Mobile, so they're shipping me out a new SIM card.
Here's the issue: They disabled the current SIM (which is providing us service) when they programmed the new SIM before they shipped it out. In the MOFI's control panel, there is no phone number detected on the sim (did they delete the phone number remotely?)
So we're currently dead in the water with no internet access, and my wife isn't too happy since she works from home. I called their tech support to get the SIM reactivated, and they said no problem, should be done within an hour.
2 hours pass, still not working! I jump back in the MOFI's control panel to see whats going on, and it seems that its still not detecting a phone number on the SIM. The Sim card, SIM ID, and T-Mobiles APN are all detected and correct, but the Phone number is not. even now (the next morning) after several reboots of the modem and factory resets there is no phone number detected.
We USED to run the MOFI on AT&T's network and still have that sim card, so i popped that in the MOFI to see if it could detect a phone number on that sim, and sure enough all that information along with AT&T's APN is there. so the Mofi's sim card reader isn't broken, it does have the ability to read a sim card correctly.
My question here, how did the MVNO supposedly "reactivate" the sim card remotely when the sim card has the Phone number deleted and the router has no access to the web? is it even possible to change a SIM's phone number remotely? Is it possible to reactivate a SIM remotely when the SIM has no access to the internet?
If it is indeed possible, any idea on why the sim not able to update?