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?
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?
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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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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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.
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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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
TMobile *T 5G converted to Global and updated to the newest OTA.
I purchased a dual SIM holder on EBAY and while the phone now does detect both SIM cards, it will not allow me to use either of them. Separately they work fine, but once I put both SIM cards in the phone, both mobile data and phone service will cut off and a warning will pop up saying SIM 2 not allowed. The SIM settings screen says both SIM are active bit i no longer have data or phone service.
With both cards inserted and one of them de-activated then the other will work. I am new to dual SIM usage. Is this normal behavior? Maybe since there is only one IMEI for both slots, could this be the reason both cannot work at the same time?
Yup, I believe you are correct. There is only 1 IMEI so effectively DSDS vs DSDA. Standby vs Active.
Question for you actually, I purchased a DS from Amazon and it did not slide in all the way. Both SIMs were recognized, but I didn't want to kill the IP rating. Is your purchase the same, if not, can you send me a link to the version you received. Looking to get a silver version for my Global T-Mobile Conversion.
Thanks
Have a note 20 ultra 5g that keeps telling me no sim card, no cellular network available. Have replaced sim card readers 2x in both motherboards, still the same. Have also tried another motherboard known good and get the same thing. But whats weird is on the motherboard that was Verizon unlocked it will tell me the phone number on the sim card. The known good motherboard that is unlocked factory. It will say the same thing. The verizon one will say sim card provider changed restart to new carrier and will reboot to T-mobile. I have replaced almost everything on the middle case as in connectors and such. Both motherboards will tell me phone number on sim card and have also tried a few different sim cards. All the same problem. Someone told me that the middle frame is the problem, but I don't believe that. Have also the verizon motherboard installed and sent this phone to Samsung and all they said was new motherboard needed, At a cost of almost $700.00. Still sim card problem and I have run out of ideas.