yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] s8freak:
Again you are absolutely incorrect you really need to stop with completely wrong information.

Of course the carrier is going to void your warranty for modifying your Samsung device it's written in your warranty that YOU voided when YOU rooted your device. That has NOTHING to do with the NO SIM issue.

By the way one doesn't "jailbreak" android devices.

This NO SIM issue has been across many carriers and on COMPLETELY STOCK DEVICES.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] SwoRNLeaDejZ:
If you had even bothered to read through this thread, you NEVER would have posted your initial response.

Explain something to me, if you could: If people are achieving success in substantially reducing the frequency of the NO SIM error, by applying TAPE AND GUITAR PICKS to their SIM trays, how could this error possibly be related to rooting and customizing their phones?? I have a hard time believing that Samsung's anti-piracy and anti-"jailbreaking" techniques could be thwarted by GUITAR PICKS AND DOUBLE SIDED TAPE.

Saying something like "If you are getting this error it's because you rooted and customized your phone, boo hoo hoo good luck" is COMPLETELY FALSE INFORMATION, as you are the only one in this thread that got the error for that reason.

Also, you just said that you got the error ON A NOTE 2. WE ARE ALL TALKING ABOUT THE GALAXY S4. Go back to the Note forums, I think you're lost.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] lgsshedden:
appreciate that some have been able to correct this issue with various hardware fixes. For me, I have now had this issue on 2 different i337m phones, one was stock my daughters and the other rooted and with custom roms. I was unable to correct the problem on the stock one and we went through the Bell vs Samsung dance without ever fixing it and eventually decided changing the phone was a better way with a Sony Z3. On my rooted and custom ROM i3337m I had issues when moving from 4.2 to 4.4 -- went complete stock Bell OC4 5.0.1 firmware and again ran into issues but I have been able to fix them by changing from the stock kernel to a custom kernel -- Imperium 1.4 didn't do it but using Hulk kernel has. So, don't know how the right baseband/kernel combination corrects the e issue but do know that it has -- and it is the combination of the 2 not just one or the other that sorts the problem. The new baseband for OC4 helped but I would still get he error message infrequently -- experimenting with kernels has then fixed the issue. What led ne to do this were other issues stemming from the stock kernel -- so I think the problem is buried in the change from 4.2 to 4.4 to 5.0 in the stock firmware of some carriers -- fixed in my case by using a kernel for the comparable i9505 variant.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] 99SSCamaro:
My solution for now. I just set up tasker to check for simstate every 5 minutes. If it <> "ready" then wait 20 seconds, and check again. If still not "ready" then reboot. At least if I don't notice the restart popup now, it will restart on its own.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] DJBerg:
Thanks for this forum.

I had the same "No SIM" issue for the past week, and placing the folded paper behind the cover, over the SIM holder has resolved it for two days now. I can't say how old the S4 is, since it was a replacement from BestBuy. Never the less, it works. So, thank you.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Terr20114:
I managed to fix the issues on my s4. I have the insert Sim issue maybe 2 or 3 times each month.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Mithanx:
The IC in yellow or the IC in white?
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] M2490311:
No Sim Error Restart Easy Fix

I upgraded to to the S5 and gave my wife my S4 and I was getting the No Sim detected error message repeatedly which was essentially like being bootlooped. I was thinking "what a lovely way to get my wife out of the LG L9 on super slow 4.1.2...then I found this picture and it immediately solved the problem. Do exactly what you see in the picture (leave the backing on the face up side of the 2 sided tape) and you should be good. Apparently, underneath the spot pictured is where the Sim and SD card attach to the motherboard and the 2 sided tape puts enough pressure on it to keep the connection going. If this is a repost, sorry. If anything, it will make the search easier for others. If the picture doesn't go through, here us a link to the picture.

http://m.imgur.com/gallery/kSlZH/

It's so simple and easy and it should work on any Galaxy S4 having the Sim Restart error and it's way cheaper and less time consuming then going to the factory.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] jpregier:
Pardon the newbie question, but I have not really worked on the hardware end of things before. Would the reheating process involve a solder iron? If so what would the temperature setting be? This problem is making my phone intolerable, but I want to make sure I don't make it worse by doing the wrong thing.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] mremghz:
Post it's fix

I tried putting tape and post it's that I cut just under the cover and it helps but I would still get the error. I took the back cover off and unscrewed the several screw very careful not to strip them, and popped the side off using a guitar pick and put sticky notes on top of the plug for the Sim and SD card slot and screwed the cover back on and then put it back together. Haven't had a problem for 3 days!
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] giggity4:
I just bought a phone on eBay that is giving me this problem, should I try changing the Sim card, I have done a factory reset and that didn't fix it, or should I just send it back? This would be the second phone that I have had to send back if I do. It's in perfect shape other than this problem so if it is a simple thing like the Sim card I would like to do that rather than send it back, but if it is going to give me trouble like some of you guys I don't want to deal with that. I'm questioning if I even want to stay with Samsung at this point.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] pjedi:
It's a hardware circuit board problem. I'd send it back if possible.

I'm sure whoever sold you these phones was aware of this issue and hoped to unload them to a sucker.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Junpei_Shibayama:
I changed to a different Phone

The best thing is to change to a new phone not made by SIM-Error or Circuit Board Problem. Probably Samsung builds up Bull****.

Have fun guys.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] carloslameiro:
Install MOD removes SIM card RESTART problem

This too started to be a problem with my Samsung S4 (Canadian Edition) sgh-i337.

I originally thought that the SIM card was damaged, and did get a new SIM card, but the problem continued to appear.

I tried adding a few paper pieces or spongy stuff inside the phone, to apply a little pressure over the SIM card and the board connector (beside/between the sd card and camera), and the RESTART message continued to plague the phone at least 1 a day, sometimes when simply resting on my desk, so it couldn't be a hardware/connection problem.

I recently wiped my phone and installed a new MOD, Cyanogenmod 12.1, mainly because I was running out of space for apps and also wanted to remove the Samsung bloatware. I was also tired of the samsung complex menu, and wanted to get a more native Android experience. It's been a week now, and I have NOT seen a RESTART message since then. I am wondering if it is a software problem that was introduced with Samsung software updates that causes the unrecognized SIM issue.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] mrclfdz:
Putting a thin block of duct tape (not the sticky part) where M2490311 suggested in order to apply pressure was what did the trick for me.

http://i.imgur.com/VK48c9W.jpg

Also I bought a case that applies extra pressure, it cost me 1.50€ in a Chinese store, this one exactly:

http://i.imgur.com/f4v7nbu.jpg

----------------------------------------------------------------------------------

UPDATE 1: The Problem still continued, I tracked the percentage of the battery when this happened until my battery was depleted: it happened at 68%, 64%, 61%, 58% and I stopped counting (happened 2 times more).

I waited until the battery got entirely depleted and charged the phone until 100% (with the phone off), Now I'm around 65% and it hasn't happened, YET, will report back in a few hours.

----------------------------------------------------------------------------------

UPDATE 2: A few hours have passed and the battery is now at 14% and nothing has happened. Will report back in a few days.

-----------------------------------------------------------------------------------

UPDATE 3 [FIXED!!!]: The Problem reappeared after a while, and this morning it happened to me like 5 or 6 times so I dropped the theory about the battery and continued reading on the internet, turns out another user had fixed it by putting a small piece of plastic on top of the sd card so I tried it and Voilà! it worked! maybe for some people you have to add pressure on the sim itself, for other people it's where the connector attaches to the mobo, in my case it was the microSD part, unbelievable! now 10 hours have passed and I went from 6 errors in 1 hour to none.

Here's a picture with the piece of plastic on that exact spot, if you're going to use plastic too, make sure it can withstand heat.

http://i.imgur.com/NdNI18i.jpg
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] samsungSucks0ya:
Yes I have had the exact same issue and when I called Samsung tech support they say to do a factory reboot which is what I did 2 times as well as upgraded to kit Kat operating system and the problem is the same. Tech support said it has something to do with the cpu heating up because of software apps not being correctly written and not closing in the back ground like they should. Hmmmmmmm does this sound like a phone you want to buy?
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] R-P:
I cannot use 4G even though my provider offers it due to it not being selectable in the menu's (Android 4.something, too little memory left to upgrade to 5, unrooted).

So does this mean that I do not use the LTE chip? And therefore should not have this issue if it is related to the LTE-chip?

It is at the repairshop (warranty) as we speak due to the "simcard not detected, reboot" error... :(

EDIT: motherboard was replaced, they automatically put Android 5 on it, so except for the even less available memory, all is well and I can indeed use 4G now.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] timblaktu:
My i337 SD card saga has come to an end

My i337 SD card saga has come to an end. Everything works except no SD card has been recognized on this phone for over a year. I have NEVER had a problem with the SIM being recognized, so I plan to just use the 16GB internal memory which is pretty respectable for a 4 year old phone.

I have replaced the reader assembly 2 times. I have tried several SD cards all of which are formatted FAT32 and recognized by other computers and phones. I have tried mechanical shims on top of the sd card, applying pressure in several spots on and around the SD card and reader assembly, and recently went as far as removing the main board, visually checking solder joints under magnifier, and hitting each pin of the SD/SIM reader connector on the main board for 1-2 seconds with a 700F iron, long enough to see the solder morph and reset, hoping the problem was a loose solder joint in the connector.

The phone's original slide into malfunction started much like others': intermittent "SD card removed" notifications. These became more and more frequent and eventually made the phone with SD card unusable. But during and after trying all of the above, I have never gotten any recognition of a SD card, i.e. no SD has been physically detected since replacing the card reader.

I am guessing there has been some damage, perhaps at the same time I shattered the glass in my back pocket one time. But I guess I am lucky bc at least the phone mostly works now. It's actually quite responsive with a custom ROM on it.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] pdhpdh:
i have faund solution for this proble
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] pete3000:
Fixed this by turning on NFC and leaving it on..

I hope I'm not jinxing my situation, but my daughters sim card removed error has gone away (3 days now) after turning on her NFC chip and leaving it on.. it was asking to reboot up to 10+ times a day. :D
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Grievous74:
Do u have a link to that modem version (mk6)?

Also some instructions how you flash it?

I have a T-mobile m919 with M919UVUFOK3 on it.

Thanks
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] audit13:
I would not recommend cross flashing modems between different model numbers as it could brick the phone.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Grievous74:
Isn't ur phone a S4 SGH M919 ?
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] audit13:
The sgh-m919 is a phone for Wind/Freedom and T-Mobile. The Bell, Rogers, and Telus s4 is an sgh-i337m. I have only owned a Telus s4.

The m919 natively supports Wind's AWS frequencies while the 337m does not. Also, this forum is for the Bell, Rogers, Telus, and AT&T S4. The T-mobile s4 has a separate forum.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Goliath27:
I doubt its the rom. I've had the same error on a 4.2 and a 4.4.2 rom. Currently, I still get loss of signal but it doesnt say it's a sim error. Just no bars.

Tried updating my modem, still no dice
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] ipeench:
I have had this error going for a while. Replaced sim card, switched roms(and modem) and tried the tape method.

Next step is going to be replace the sim card tray. Is it soldered or snap in?

Also I have noticed it happens more often with my phone charging then when it's not plugged in. Anyone else?
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] shamelin73:
I just had a thread like this I had to send my phone to Samsung. The first time they sent it back to me it still had this issue. Just got the phone back and they say they replaced the entire phone and it now seems to be fine. I just need to find out if it is still unlocked.

---------- Post added at 11:32 AM ---------- Previous post was at 11:30 AM ----------

I just had a thread like this I had to send my phone to Samsung. The first time they sent it back to me it still had this issue. Just got the phone back and they say they replaced the entire phone and it now seems to be fine. I just need to find out if it is still unlocked.

I am completely stock.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] KingShao:
Same problem! The Phone is bone stock, other than being rooted it looks like. I replaced the tray, double checked the SIM, STILL NOT DETECTED. NOTE: The SD Card detects fine and works and it is on the tray so that rules out possible bad connection on the flex. The old card tray appears to be completely fine as well... I'm really stumped with this.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] kylehere123:
I have the exact same problem...

Replaced sim. used tape. replaced sim tray. SD card works. hard reset.

I don't get it.

EDIT:

applying pressure to wear to the flex cable connects fixes the problem.. jesus christ
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] ORT14:
Same problem here. What a pain it is. I'll be in the middle of typing a text or email and it just pops up with the message about the sim card being removed. Worst is when it happens while on a call, talk about frustrating.

Edit: I don't know how much longer I can keep a phone that doesn't consistently work. This might be the end of this phone for me......
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Joe Blough:
Just bought a used I337m myself and same damn msg! Either a O with a line thru it and reported lost connection or sim card not found...reboot
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] ORT14:
If you bought it on eBay dispute/return it ASAP. You don't want to go down that road.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] shamelin73:
I just got mine back from Samsung repair for the third time. Crossing my fingers it is all good now and hope it stays this way.

That one from EBAY you need to try to get a refund or send it into Samsung if under warranty.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] ORT14:
My phone got to the point where it was doing it multiple times per hour. Just for the heck of it I flashed to an old backup of a 4.3.1 ROM last night. It's been about 16 hours and it hasn't done it once. So I started thinking about it and this didn't start until I moved to 4.4 ROMs. Is there any chance it could be rom based? I had it happen on several different 4.4 ROMs.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] DugM:
Just to add on...

I have had the same problem am now on my third (16GB) S4 - the second and third being warranty replacements from AT&T. Got the third one yesterday and it has already required a reboot 3 times. I am running 4.4.2 although it has happened on 4.3 as well. I am running only the stock apps (I have not stopped any of the bloat) + Nova Launcher, Facebook, Viber, and Google Voice (all installed from the play store. No root, etc.

The only thing I have had consistently among the three devices is the same 64GB SanDisk Ultra Micro SDXC card. The external memory is performing fine (plays music, videos, etc). My next step is to let it fail again and ask for a reboot to find the SIM card (I uninstalled Falcon Pro since the last SIM failure) and will then get rid of the external card to see if it goes away for good. I had a 32GB SD card in it previously, and never had any issues.

Didnt know if my example would spur further discussion.

Thanks everyone.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Mramos860:
Mine Does this Too

I have had my s4 since June of 2013. My phone started having this problem about 2 months ago. it would happen every now and then then it started to occur daily. Once it started to drop calls and display the error message I got fed up. I contacted Samsung and they said they were unaware of any problem like this for this phone. I sent it into Samsung they had it for 2 days, and they replcaed the sim card tray. They are sending my phone back and it should be here tomorrow. Ill update my post and let you know if Samsung fixed the problem.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] shamelin73:
Finally got mine fixed. Took three times to Samsung. The replaced system board this last time. I have had it back for a week now and no errors. I even updated to the 4.4.2.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] shamelin73:
I do have a quick question as I have the phone back. I am guessing Samsung has the ability to change the IMEI on the system board? That's what they replace on this third repair but I have the same IMEI and serial number.

Can they do that?
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] ORT14:
Are you guys that are sending them back going through att or directly through Samsung?
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] shamelin73:
AT&T wouldn't help me as I got the phone from them as a refurbished phone but it was really new. Samsung did the repair for me under warranty.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] ORT14:
Well guys I gave up the fight. Called att this morning. They are sending me out a replacement under warranty. Probably will end up selling it and buying something else. Can't risk having to deal with this again.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] travvoll:
I have the same problem on my Note. I've tried everything. Several different roms, completely stock, replaced the sim tray, and the only thing that works is squeezing the phone when booting but its only temporary because the error always pops up. I'll try the foam on the connector that seems like it might be a good solution to keep pressure on the connection.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Palmetto_X:
nope

I tried to send mine back to Samsung and the denied repair because the glass had a small crack at the top. So i ordered the part and replaced it. Still does not work. The phone is basically a ipod now :(
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Augusto.Nascimento75:
Motherboard Swap

My phone is a M919 running 4.3

At first I was getting the SIM CARD ERROR and self restarting.

Then I have made a motherboard, flex cable and card tray swap to I9505, and upgraded to stock4.4.2.

Now I still get SIM CARD ERROR.

Tried alrewady apply pressure on the cable, tape the back of the simcard with no success.

Did anyone find the fix for this issue?
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] shamelin73:
After mine went to Samsung 3 times they replaced the system board this last time and going 3 weeks now it has not had this SIM issue.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] UberTechnophile:
Tasker Workaround.

So, I've had this issue for a while now - seems to randomly occur. Tried opening the phone up and doing everything that has been suggested all over the Internet (tape, flex cable etc.), but the problem keeps reappearing. Maybe I'm not doing something right.

Nevertheless, I've been lucky because a reboot always fixes the 'NO SIM' error. I've noticed this problem is aggravated after I swap SIMs (I have two SIMs which I manually cut from fullsize to microSIM) and ever since then, this problem seems to occur intermittently, the most recent being over the last weekend.

A workaround I've found is to create a Tasker profile to detect %SIMSTATE, and reboot automatically when no SIM is detected, but I guess you have to be rooted for this to work.

Hope this helps someone.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] Augusto.Nascimento75:
When you say system board, are you meaning motherboard?

This is what I just replaced, and still with the same messages NO SIM CARD.

Now is even worse, because most of the times when I try to turn it on, it is not able to recognize the simcard at all
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] shamelin73:
Yes the main PBA mother board. I got the phone back with the same serial and IMEI and did call Samsung about that and they said the have the ability to reprogram that into the new board. I have not had any issues since this third repair.

The first and second time they repaired the sim tray and that didn't fix the issue
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] s8freak:
My gosh I am not alone with this problem and it seems there isn't a fix unless one sends the phone back multiple times. I'm not going to do that because I'm on the old bootloader and enjoy flashing anything I want pretty much.

This one thing I do know it isn't Rom related it's the phone and I've done everything every one else has except sim tray and I see it doesn't fix it. Oh well I'll live with it but geez it sure is frustrating.

"All we know is...He's called the Stig!"

Sent from my SGH-I337
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] frapeti:
suffering the same issue here plus front camera now too, replaced sim tray module and nothing, reballing and nothing, so I guess it's motherboard fault :/

EDIT: after reading here that applying pressure to the flex connector of the sim tray works, I tried it and it's 100% true, so this is what I did and it's about 5 hours without the error since I did it, cut a small rectangle of something like plastic, paper, etc of the same size and put/glue it here:

then reassemble it carefully and hopefully it will work again without issues :)