Invalid SIM Card on iPhone 4S (5.0.1)

I've contacted Apple, and since my Phone is under warranty, they replaced it with a new iPhone 4S. What I liked about it, that it has iOS 5.0.

In my previous iPhone, it was 5.0 and never had issues till I updated to 5.0.1.

I'm using this new iPhoen for 2 days now and never got any issues of 'No Service' nor 'Invalid SIM'. So I will keep my phone on 5.0 and won't update, till we see how 5.1 final works 😉

Happens all the time to my 32gb white 4s (vodafone uk). And it seems to be happening with more regularity, like about 10+ times a day.

I've tried restoring from back-up and all that but it only worked for about 48hrs.

I'm seeing that replacing the phone / sim card isn't helping anyone either, unless anyone here has heard to the contrary?

anyone know if apple are planning on solving the problem with an update / new model sim card or sim tray or new whatever is causing the failure?

Hi

I've the same issue ! My SIM works fine for two months, then the invalid SIM error comes up. At the moment, many times a day it will be happend.

I upgraded the iPhone 4s to 5.0.1 9A406 but it not solved the issue. The remove of the sim PIN not help and at last factory reset also.

In the moment my iPhone is to minum configuration but it consum power, at the end of the day it is empty.

Janba,

it is nothing to do with the sim security. if it is a security it must not start or work at all. but the sim starts working after every trial or reboot. may be after 2hrs or 3hrs of inactivity you find the surprise. once you reboot it agaian starts working. the same sim would work fantastic in ip4 but not in ip4S. it clearly says the problem is only in ip4S. i am also waiting for apple to come out with some solution.

I agree with you sathyam,

it took me a week to replace my iPhone 4S and during that time I used my iPhone 4. Using the same sim card and never got those issues with it.

It is clearly an iPhone 4S issue and iOS 5.0.1. iPhone 4S with iOS 5.0 don't get these issues. so if you're on warranty, change your iPhone and ask them to give you one with iOS 5.0

Is there any way to downgrade the OS to 5.0 and try?

iOS firmware contains 2 parts (firmware, baseband), firmware is the main OS itself, baseband is the software for the GSM or sim ...

if you have the SHSH for your device for iOS 5.0, then you can downgrade, but that will only impact the firmware... and it's impossible to downgrade iPhone 4(S) baseband, and I guess the issue here is not the firmware, it's the baseband of iOS 5.0.1.

In other words, even if you could downgrade to 5.0, you still have 5.0.1 baseband, so the issue will remain.

Thanks for the info. let me think over . in the meantime anyone gets any sort of solution pl update

InvalidSIMCardoniPhone4S (5.0.1) I have thesame problem.I havemyiphonerestauardo4S3 timesand stillthe sameerror.Now I have a4SIpnoeI can onlyuse withiPod.
Someone atApplecan help us withthis serious problem thatleaves us withoutphone?Pleasecorrect thisfatal errorwhen.

Greetings from Bulgaria. Same problem here. The update iOS 5.0.1 (9A406) didn`t solve the problem.

I hope Apple will help us ASAP.It`s very dissapointing to see how iphone 4s become to ipod like the guy before me said:)

Hope to see the iOS5.1 update soon in Itune. Hope this fixes our problem. Request Apple to release this update soon.

regard

sathyam

<Edited by Host>

IphonedAppleandthey told methe only thingisto changeSIM.I'vechanged2 new SIm cards andthe error still.
Someonepleasetake noteAppleand releasea solution tousers
thanks

Here the same SIM problem.

I've got iPhone 4S since November 2011. Everything right until January 2012. Symptomes: Every day in the morning the message "Invalid SIM". After restart all OK. In the end of the month I got several messages a day: "no sim installed", "Without network". Other times the network indicator was strong but in real i was nor connect to the network. I've changed the micro-SIM 2 times but nothing was solved. I went to the operator that sold me the iphone, in Portugal, and now i'm waiting for a "repair" or a new iphone. Meanwile i have to wait 2 or 3 weeks.

It's impressive that the called by apple "the best iphone ever" has this problem for so many time unsolved. This is an high-end phone. It should not have ... a SIM problem....... Plese Apple, shame on you. Solve the problem.

@grgi- can you please send me the link to download 5.1 beta 3

Go to apple shop. Before you go save all data( mms, SMS etc) let them wipe phone they also put latest ver they have on. Then when you get phone back go get new sim. Put it in, reset network settings. Make sure with telco that sim is active before reset net settings. So far so good. Time will tell... Oh my new sim did have new foil(wiring) pattern indicating new type of sim chip! Think these phones are fine, just too advanced for older sims, older telco network protocol. If still fails then get phone replaced and see.. I think that only few need this as there is low fail rates of hardware. But they sell millions so larger sample will show larger fail number not rate. For battery issues get mophie batt/case it runs all day and phone still at 100 percent by 3am! Oh exercise battery by drain and charge every two weeks. Camera is good, don't zoom in get closer! Video is good did roxette live last night well. Recording that wiped mophie batt tho, still by 3:39 had 87% left. Like hd vid on it, sound rec good. Siri is still basic but will evolve. Like dictation util it's nice, make sure environment is quiet... Computers still cannot focus on one voice it hears all.. Confusion happens then. Lovin it now... Let's see if it fails now. Have not tried restore backup yet but have no need. Backup now new set up for future restore cause this setup works.