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I brought S4 just another day and when I insert sim card the phone says "No sim Card" but I inserted it already!
Its micro sim i'm buying another sim card today and see if it works,
Will customer service fix this if the problem is in the phone ? If yes then is it covered by warranty ?
Any help? maybe its software problem
Julius Palad said:
I brought S4 just another day and when I insert sim card the phone says "No sim Card" but I inserted it already!
Its micro sim i'm buying another sim card today and see if it works,
Will customer service fix this if the problem is in the phone ? If yes then is it covered by warranty ?
Any help? maybe its software problem
Click to expand...
Click to collapse
Definitely. Visit SSC.
BTW, use this thread http://forum.xda-developers.com/showthread.php?t=2192886 from next time to ask anything related to S4.
zzz
You didin't even answer my question, my question is is this hardware problem or sim card problem?
Julius Palad said:
You didin't even answer my question, my question is is this hardware problem or sim card problem?
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Click to collapse
And how exactly he should or anyone should know what's exactly your problem? Can be hardware or the simcard. This is up to you to find out.
First try a new simcard , and try to get one micro sim factory cut if you can, if still nothing means is hardware.
Did you put it in wrong?
Sent from my Nexus 4 using xda premium
I have the same problem on my s4, it doesnt recognize any sim at all. i tried several simcards but with no success
daahir said:
I have the same problem on my s4, it doesnt recognize any sim at all. i tried several simcards but with no success
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Click to collapse
You have the answer on this topic, if doesn't work with any simcard, bring it back.
GT I9505 doesn't detect LTE sim, works fine with 3g Sim
Hello all !
I own a 2.5 year old GT i9505 (LTE variant) which works completely fine with a 3g Sim but the "Sim Card not inserted" error appears as soon as a 4g Compatible Sim is inserted. Could this be a modem issue ?
I live in India (got the phone from Europe) and have been using 3g services without any hitch for the past 2 years. Vodafone recently launched 4G services here and my phone doesn't detect the new 4G Sim card .
My phone shows the LTE/WCDMA/GSM modes but doesn't detect the Sim card.
Tried with another Sim from the store that doesnt work either.
Details :
AP: I9505XXUHOJ2
CP: I9505XXUHOJ2
CSC: I9505EURHOJ1
All ideas and solutions are appreciated.
It's possible that there is something wrong with the phone's sim card reader. You could replace the reader for not a lot of money and it's easy to do yourself.
Maybe your phone is unable to detect LTE Networks from Vodafone India because from what I research, India uses TDD-LTE. You could Google-d LTE bands that used in India and compare it with your phone's supported LTE bands.
Sent from my GT-I9500
audit13 said:
It's possible that there is something wrong with the phone's sim card reader. You could replace the reader for not a lot of money and it's easy to do yourself.
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Thanks for your reply.
I considered that option but a 3g sim works perfectly. Do you still think it would help ?
krasCGQ said:
Maybe your phone is unable to detect LTE Networks from Vodafone India because from what I research, India uses TDD-LTE. You could Google-d LTE bands that used in India and compare it with your phone's supported LTE bands.
Sent from my GT-I9500
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Click to collapse
Thanks for your reply.
I guess I am just lucky my phone supports both.
http://www.cnet.com/news/why-your-next-4g-phone-should-have-fdd-lte-and-tdd-lte/
Still no luck !
I don't know that much about sim card technology. Have you tried the LTE sim card in a very old phone to see if the old phone detects the sim?
audit13 said:
I don't know that much about sim card technology. Have you tried the LTE sim card in a very old phone to see if the old phone detects the sim?
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I did infact it works with every phone except this one.
Leads me to conclude it is the sim reader or motherboard if no LTE SIM cards work. Doesn't seem like software.
Hi anybody confirms that, ZUK dual sim working with Dual 4G Sim, today I have tried I can able to set up only one sim as 4G, another one is automatically switched to 2g from 4g..
Same here, i was in india for 2 weeks and tried to use an airtel card + my german sim card both on 4g, but i could select only one for 3g/4g then the other one went into 2g mode automatically.
You can not use 3/4G on both sims simultaneously.
not only this phone, but no such phones exists up to now. (except one.)
Please confirm if only sim1 support 4g? Is it possible switch 4g on sim2 and sim1 as 2g?
maokun said:
You can not use 3/4G on both sims simultaneously.
not only this phone, but no such phones exists up to now. (except one.)
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Click to collapse
then Dual Sim LTE Standby what does it means..?
Sim card not detecting. Says no service.
just bought z1 tody..nice phone but sim not detecting on both slot .. It says no service. M using airtel sim.. None of the sim s working says no service..
Kausik2888 said:
just bought z1 tody..nice phone but sim not detecting on both slot .. It says no service. M using airtel sim.. None of the sim s working says no service..
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Click to collapse
Hi Kausik,
Even i was facing the same problem with Airtel. Please put the sim card in slot 2 (when phone is On), restart phone and stay in coverage area for some time. It should detect the network.
One you get the netwrok, simply remove sim card from slot 2 and put in slot 1 (when phone is on). Hope this helps !
When I was using COS 12.1 I had the same problem: only one sim at a time can have 4G functionalities.
With ResurrectionRemix I can set both on 4G, so I just need a single step to switch data from SIM1 to SIM2.
nothing helps.
I did take sim out when its on and put it in another slot and did restart.. Nothing helps ...can anyone help me with. This plz..
---------- Post added at 04:49 PM ---------- Previous post was at 04:45 PM ----------
What is resurrection remix bro..
can i use two gsm sim in this phone
sugyan said:
can i use two gsm sim in this phone
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Click to collapse
Yes
Hi anybody tried, while first sim in answer , when trying to reach second sim, its coming unreachable responses only, its not showing as waiting call, anybody can help..?
[email protected] said:
Hi anybody tried, while first sim in answer , when trying to reach second sim, its coming unreachable responses only, its not showing as waiting call, anybody can help..?
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Click to collapse
This is normal behaviour of nearly every dual SIM phone. Dual SIM means dual standby. When one SIM is in use, the other SIM is offline.
No I just tried in Asus zenfone 2, while one Sim in use another Sim is getting connection and it's showing as call waiting
any one can help on this..?
Hi all,
I have the dual sim S7 SM-G935FD running the XSP firmware. Rooted with the microSD Mod on Sim 2. It's being used in the USA at the moment. Sim 1 is AT&T and Sim 2 is T-Mobile. Both are USA sim cards. Everything goes through Sim 1 AT&T - Voice, Text and Data. Sim 2 is just for receiving calls only. Sim 1 is set at LTE/3G/2G and Sim 2 is 2G only.
Since day one I have this connectivity issue pertaining to data connection.
When Sim 2 gets a weak signal and eventually drops out, data connection on Sim 1 remains - everything works. However, when Sim 2 is picking up signal again, the data connection on Sim 1 drops out.
When this happens, the pull down notification will display that the data connection is on Sim 2 - as if the phone switches the data connection from Sim 1 to Sim 2 by itself. However, if I go to the Sim Manager, it will show that the data connection is still on Sim 1 like it originally was. At this point, the phone has no data. And yes, the phone is displaying conflicting information. Notification says Data is on Sim 2 but Sim Manager says Data is on Sim 1.
To fix this, I have to use the Sim Manager, select Sim 2 for Data. Wait a few minutes. Then, choose Sim 1 for Data again, then everything comes back normal. Data connects.
This is quite annoying in a poor reception area.
Troubleshooting steps that I have tried but they do not fix the problem-
Flash stock firmware no root
Use a different stock firmware - XEU
2 sim cards only with no microSD card on the back of Sim 2
Choose 3G/2G only for Sim 1 and 2G for Sim 2
Swapping Sim 1 and Sim 2
If I disable Sim 2 the problem goes away, but of course, what's the point of dual sim then?
I also have a S6 Edge+ Duos SM-G9287 but it does not have this problem.
Any ideas? Thanks.
Just wanted to add that I am experiencing this as well.
Man this is getting unbearable. Is there a specific forum for the FD devices? I'm thinking I might just return this phone while I still can.
Wow I was going to put something on boards as well with literally the exact same setup in USA. It gets way annoying when tmobile gets weak and switches even though I have it set on sim 1 data. I really hope there is a fix or else I might make the switch to htc10 (if they even get a dual sim) and keep my fingers crossed it works better. My S6 duos works better than this but I don't have additional memory with hybrid SD sim card on s7.
Sent from my SM-G935F using XDA-Developers mobile app
FYI -
I have been running XSG firmware. I just upgraded from APC8 to APD1 and the problem still remains.
Just trying to save some time for those of you who thinks upgrading will resolve the issue... it will not.
It is amazing how the S6 Edge+ Duos does not have this problem. Things went backwards for Samsung.
No problems here though mine is the G9250 dual sim version (HK).
G9250 is s6 edge is it not? We are on g935FD. It seems like I can never find the elusive perfect dual sim! Always some kind of bug! Might be heading back to my Xperia z5 premium. Can you guys confirm that it's wifi causing it? Seems like whenever I come off of a wifi network it never picks mobile data back up.
That seems like part of the problem too..as soon as wifi loses connection then it switches and then no more data
Sent from my SM-G935F using XDA-Developers mobile app
Has anyone fixed this? I have tried to flash a couple different modem firmwares to no avail. The T-mobile one won't flash as it uses a snapdragon chipset.
Mine was doing fine until I did a firmware update and now the data connection problem appeared. I was on a B6 firmware with a B9 modem on a AFG CSC so I will try to go back to this and report back whether the issue resolves. Any firmware starting D1 (tried D3, D6 and D8) causes the data connection lost issue. Even just going back to a B9 modem with the D8 firmware didn't help. What a pain in the rear...
Follow up to my previous post:
Officially, G935FD is a piece of crap. Tried every combination of modem/AP to get this work but no luck. Resorted to single sim mode for now.
I have this same issue. the only way it works is to manually select one sim in use at a time. I just removed the second sim and added a micro sd card for now.
craigg1 said:
I have this same issue. the only way it works is to manually select one sim in use at a time. I just removed the second sim and added a micro sd card for now.
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Click to collapse
Did you update your firmware to a different CSC? That's when my issues started (went from AFG to BTU and even after going back the problem wasn't fixed)
What is your original CSC?
onurd said:
Did you update your firmware to a different CSC? That's when my issues started (went from AFG to BTU and even after going back the problem wasn't fixed)
What is your original CSC?
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Mine didn't work out of the box with stock firmware. I have since upgraded the stock firmware but haven't tried using two SIMs with the latest update. Maybe I'll test it over the weekend.
+1 on this bug existing for me since day one. I have been sticking it out and staying with dual sim as I don't have any other option. Kinda wishing I had just returned it... I have gone through hell trying to talk with people in India (where the phone is apparently from) about just getting the bug's existence up the chain. If only we could get a dev to take a look at our logs so I can have a reason to just root the damn thing already. Has anyone tried maybe flashing the sim manager apk from the s6 edge? Is there even a sim manager apk?
I have exact same problem with S6 edge+ dual sims. SM-G9287. Problem started since marshmallow updated. Didn't have this problem before under old android version. Has anybody found any fix yet? Right now, If I disable one of the sim, then it seems ok, but I need both sim to be on to receive call on either number.
My phone was stock firmware. Problem seems to be with Marshmallow 6.0.1 , not because of custom firmware.
vietmax said:
I have exact same problem with S6 edge+ dual sims. SM-G9287. Problem started since marshmallow updated. Didn't have this problem before under old android version. Has anybody found any fix yet? Right now, If I disable one of the sim, then it seems ok, but I need both sim to be on to receive call on either number.
My phone was stock firmware. Problem seems to be with Marshmallow 6.0.1 , not because of custom firmware.
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Kind of same problem here, but it happens only since I received the update to APD1.
I live on a border zone, so I have to force my LTE sim card to its own network. The second SIM is only on 2G.
When the phone loses its own network, SIM with LTE completely disappears, everything is moved to SIM 2G and of course I lose network. The problem is that the SIM with LTE is not seen anymore, even if I go back where the signal is, and the "mobile networks" option disappears in the Settings. I cannot do anything else the reboot the phone to see the SIM again.
Ciao Marina
I have similar issues with my s7 duos not the edge model. Sim1 tmobile, sim2 at&t. Sim2 seems to be the issue for me. Cell quality at my house is not great. I also have a xperia z5 premium dual that has similar problems mainly with lte. The samsung does hold lte signal but the bars are misleading. But the samsung, I woke up this morning and sim2 was offline no calls or text or data. Call quality with sim2 isnt as good either. I blame cell signal on that since the sony has similar issues. But I have seen it with sim1 set to calls and texts and sim2 for data the pull down says sim1 even though sim manager says sim2 is data. Wtf right? Disabling sim2 and reenabling gets it back working again but what happens when the phone does this is you lose data since sim1 data would be gsm only. The common theme is sim2? Also seems signal quality is a big factor. My CSC code is ECT which is Nigeria. I have not changed firmware yet other than the APD1 update. Ironically my xperia z5 dual didnt have these issues at all with lollipop the problems started with marshmallow. I am in the US by the way.
Temporary fix?
Looks like I accidentally ran into a temporary fix, that's working for me for the last few days. I'm on Vodafone for SIM1 and T-Mobile for SIM2, EU&US.
When I restart the phone and set SIM1 for data on LTE/3G/2G it connects, but looses the connection after a while and defaults to SIM2 (with no data). No BT, no WIFI, no data icon anywhere the screen.
When this happened, I ejected the SIM card holder and pushed it back in 2 seconds. Suddenly SIM1 was trying again to connect and the 4G icon appeared. At his point I turned on WIFI.
The weird stage: WIFI on, 4G icon flashing every 5secs – but it's working as it should. If I loose reception, it does not switch cards. Actually never switches card if I don't want to. I can live with the flashing 4G until we have an official fix.
Let me know if it works for you guys!
Im learning that mine is a lot more stable if I set everything to the same sim and not split up talk/text on sim1 and data only on sim2 like I was doing. Not sure if this is placebo for now but I have everything set to sim2 and so far so good with no drops.
Hello guys! Can anyone help?
I've got my new X722 from GB few days ago. All were the best before I've inserted SIM card at the phone and find it cant properly work with 4G. Few hours of hard work and I find some strangenesses.
SIM card slot #1 can only work with 4G and only with internet. It cant make calls, sms etc. It says "Activation failed".
SIM card slot #2 works fine, but it needs time to wait to make it work with 4G. Sometimes it lose 4G and doesnt return back even if I try to switch "only LTE" or make network search (there are no 4G providers at the list).
So who had this problem? Is there any solution?
Firmware is 20s, stock.
4pda user fakimosha made a guide. So there are no problems with network any more. Can't post links so try to search it.