Don't change your original sim, you've been warned - Page 2 - MacRumors Forums
Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > iPhone, iPod and iPad > iPhone

Reply
 
Thread Tools Search this Thread Display Modes
Old Nov 1, 2012, 10:21 AM   #26
rollingstart
Guest
 
Join Date: Jul 2007
I don't think you can categorically attribute download speed to the SIM card. Speeds are affected by so many different factors.

OP, are you in a fringe area for LTE coverage? More importantly, have you been able to compare your signal strength with other iPhone 5s in your area?

I'm in a fringe AT&T LTE area and I consistently have bad coverage, maybe 2 bars of LTE signal if I'm lucky. The only way I was able to allay my worries was to drive to a local AT&T store and compare with other iPhone 5s, and talk to the reps about the local coverage. Instead of relying on chat maybe you should do the same.
rollingstart is offline   0 Reply With Quote
Old Nov 1, 2012, 11:00 AM   #27
Myiphone7
Thread Starter
Banned
 
Join Date: Nov 2010
Quote:
Originally Posted by itjw View Post
Do you know what SIM stands for?

*waits for you to google it*

Ok. So how does it effect signal strength?

It doesn't.

If it did, I'm sure there'd be SIMGate by now. Maybe there was no antennagate, maybe it was all SIM related...

If you don't understand something don't pretend like you do (see how that works?)

My phone is still protecting me from tigers though! I swear! It's working!

Well it looks like you aren't open to learning even though I'm trying to teach you.

All I will say is that the sim can affect your signal greatly and you should know this.

----------

Quote:
Originally Posted by scaredpoet View Post
Exactly. You don't know the "technicals."

It's most definitely not the SIM. If it was, you'd have no service at all.

Something else is going on.

And by the way, if 2Mbps counts as your "Halloween nightmare," try being in my shoes: no data and barely any voice service at all thanks to Hurricane Sandy. Count your blessings, and work with AT&T to fix the problem. But it's not your SIM.

Well actually it's the SIM card affecting my signal. The SIM card can have a great affect on signal strength and this is widely known.

Anyway, good luck with the hurricane. I know it's been really rough northeast.
Myiphone7 is offline   0 Reply With Quote
Old Nov 1, 2012, 11:13 AM   #28
darster
macrumors 68000
 
Join Date: Aug 2011
It's your bent iphone causing the problem, or perhaps the mean look you got from an Apple rep, or perhaps the scratches on the sim card, or perhaps your mother's imessages, or perhaps a bent sim and all the other oc threads by the op.
darster is offline   1 Reply With Quote
Old Nov 1, 2012, 11:39 AM   #29
r2shyyou
macrumors 68000
 
r2shyyou's Avatar
 
Join Date: Oct 2010
Location: Paris, France
Quote:
Originally Posted by itjw View Post
It's possible they registered you into a data plan that did not access LTE,...
This above quote is where I'd start. If I recall correctly, AT&T's data plans have historically appeared as follows:

DataPro # GB for iPhone (for at least 3GS & 4 but maybe all iPhones prior to 4S)
DataPro # GB for iPhone 4S (to enable HSPA+ aka faux-G)

Now with the iPhone 5, there's a new one:

DataPro # GB for iPhone on 4G LTE

My wife recently upgraded her 3GS to a 4S and even though we hadn't yet made the data plan change (was still the first one listed above), the phone immediately displayed the "4G" notation in the status bar after putting her SIM (cut from her 3GS SIM) into the 4S. And no, the plan didn't change automagically; we had to contact AT&T to have it switched.

Quote:
Originally Posted by itjw View Post
Right, and if I run multiple tests at differnet times/slightly different locations I get wildly different speeds too...

Is it my SIM???
Actually, maybe it is since the SIM itself is now operating in a different time/location (parallel universe??) than before!
__________________
"kkkkkkkk ....ok" - iphone4s16gb
r2shyyou is offline   1 Reply With Quote
Old Nov 1, 2012, 11:47 AM   #30
PrestonWard
macrumors member
 
Join Date: Jul 2012
Quote:
Originally Posted by Myiphone7 View Post
Well actually it does make a difference the 2nd sim gave me only 2 Mbps and the first only 5.

I don't know the technicals but trust it me it can make a huge difference.


Did the att guy have a mean tone in his voice when he told you this?
PrestonWard is offline   0 Reply With Quote
Old Nov 1, 2012, 12:08 PM   #31
walie
macrumors 6502a
 
Join Date: Nov 2010
Quote:
Originally Posted by Myiphone7 View Post
Well it looks like you aren't open to learning even though I'm trying to teach you.

All I will say is that the sim can affect your signal greatly and you should know this.

----------




Well actually it's the SIM card affecting my signal. The SIM card can have a great affect on signal strength and this is widely known.

Anyway, good luck with the hurricane. I know it's been really rough northeast.
cite sources please
walie is offline   0 Reply With Quote
Old Nov 1, 2012, 09:02 PM   #32
joeshmo2010
macrumors 6502a
 
Join Date: Jun 2009
Location: Seattle, WA
Quote:
Originally Posted by XboxMySocks View Post
Entirely untrue. I re-activated a MiniSim from 2003 deactivated in 2009 to use with my iPhone 5 - worked flawlessly.
Was only referring to AT&T. Not referring to someone that I've never heard of.
__________________
iPhone 5s Gold 32gb using AT&T on Vzn Factory Unlocked Model
iPad rMini 64gb WiFi+LTE Silver/White Vzn (AT&T Service)
15" Retina Macbook Pro (late 2013) 2.3GHz Intel Core i7 16gb RAM 512gb storage
joeshmo2010 is offline   0 Reply With Quote
Old Nov 1, 2012, 09:27 PM   #33
Applejuiced
macrumors Nehalem
 
Applejuiced's Avatar
 
Join Date: Apr 2008
Location: At the iPhone hacks section.
Quote:
Originally Posted by adam044 View Post
you could just have slow LTE in your area.........
Imagine that
No, it's the sims fault he thinks.
He used to get 5 and then he got 2mbps so it can't be the network or maybe heavy traffic on that tower

----------

Quote:
Originally Posted by darster View Post
It's your bent iphone causing the problem, or perhaps the mean look you got from an Apple rep, or perhaps the scratches on the sim card, or perhaps your mother's imessages, or perhaps a bent sim and all the other oc threads by the op.
Oh man, that's that same guy again?
Never mind then, it's gotta be the scuffs on his iPhone causing slow LTE data.

Last edited by Applejuiced; Nov 1, 2012 at 09:54 PM.
Applejuiced is offline   3 Reply With Quote
Old Nov 1, 2012, 09:34 PM   #34
scaredpoet
macrumors 603
 
scaredpoet's Avatar
 
Join Date: Apr 2007
Quote:
Originally Posted by Myiphone7 View Post

Well actually it's the SIM card affecting my signal. The SIM card can have a great affect on signal strength and this is widely known.
The only affect it has is authenticating you to the network. With SIM cards, they either work fully, or not at all. There is no weaker/stronger signal strength associated with a SIM being good or bad. A SIM card isn't an antenna, nor is it a radio. It just stores information that the network uses to identify which account the phone is supposed to be drawing from.

There USED to be a time, back when networks were transitioning from 2G to 3G, that older SIMs with only 32K of storage would *sometimes* affect a customer's ability to access 3G. This was because they lacked the space to store the separate authentication app needed to get access to 3G. Some cell sites could work off the old data on the 2G app, but others couldn't. The fix was to get the old SIM swapped out for a 64K or larger "3G capable" SIM. But rather than describe all the tech details to users, AT&T (and other carriers) would simplify things by telling people they had "bad SIMs" that needed to be swapped out for newer ones.

Those days are long gone. But unfortunately this "bad SIM" explanation that oversimplified the problem back then, has now morphed into this continuing "widely known" myth that a weak signal or slow data speeds can be caused by having a "bad" SIM.

Yes, it's totally possible for someone to end up with a defective or damaged SIM. But if that were to happen, you'd get no service at all. Instead of slow data speeds or lesser bars, your phone would would read "No Service" or "Invalid SIM," and you wouldn't be able to do much of anything on it.

Quote:
Anyway, good luck with the hurricane. I know it's been really rough northeast.
Thanks. Good luck solving your data issue. But I'm pretty sure that you're chasing a dead end with the bad SIM idea.
__________________
If you're not a clairvoyant, then you shouldn't be speaking for a dead guy.
I'm here to talk about Apple stuff, and related tech stuff. Your political beliefs? I really couldn't care less about.

Last edited by scaredpoet; Nov 2, 2012 at 07:34 AM.
scaredpoet is offline   1 Reply With Quote
Old Nov 2, 2012, 01:03 AM   #35
vastoholic
macrumors 68000
 
vastoholic's Avatar
 
Join Date: Jan 2009
Location: Tulsa, OK
Will someone please remove the "Start new thread" button for this guy. Seriously. His posts are becoming more and more ridiculous every day.
__________________
View my flickr sets....if you want. They're not too exciting.
vastoholic is offline   3 Reply With Quote
Old Nov 2, 2012, 01:10 AM   #36
areyes163
macrumors member
 
Join Date: Jun 2012
Quote:
Originally Posted by itjw View Post
Do you know what SIM stands for?

*waits for you to google it*

Ok. So how does it effect signal strength?

It doesn't.

If it did, I'm sure there'd be SIMGate by now. Maybe there was no antennagate, maybe it was all SIM related...

If you don't understand something don't pretend like you do (see how that works?)

My phone is still protecting me from tigers though! I swear! It's working!
Ah your back. I second you again fine sir. I also still have not been attacked by tigers.
areyes163 is offline   1 Reply With Quote
Old Nov 2, 2012, 11:49 PM   #37
Jtludwig
macrumors regular
 
Join Date: Mar 2012
Quote:
Originally Posted by Myiphone7 View Post
Well I've had my Halloween nightmare.

I've been having reception issues with my iPhone 5. Slow LTE etc.

So the AT&T chat guy he'd send me a new sim because even though it usually doesn't make a difference, it's worth a try.

After sending a regular sim instead of nano, it finally came today and I changed it out.

Low and behold, the new nano sim is giving TERRIBLE reception. 2 Mbps LTE!!!

So I get back with chat and they said I can't switch back to my old sim. After many hours going back forth

AND LOTS OF HASSLE...

My AT&T original nano sim is working again. Not great reception. About 5 Mbps LTE. But still better than 2!
Since your phone is bent, it must be causing problems for your reception.
Jtludwig is offline   1 Reply With Quote
Old Nov 3, 2012, 04:23 AM   #38
Koziakauzu
macrumors newbie
 
Join Date: Mar 2012
Quote:
Originally Posted by Myiphone7 View Post
Well I've had my Halloween nightmare.

I've been having reception issues with my iPhone 5. Slow LTE etc.

So the AT&T chat guy he'd send me a new sim because even though it usually doesn't make a difference, it's worth a try.

After sending a regular sim instead of nano, it finally came today and I changed it out.

Low and behold, the new nano sim is giving TERRIBLE reception. 2 Mbps LTE!!!

So I get back with chat and they said I can't switch back to my old sim. After many hours going back forth

AND LOTS OF HASSLE...

My AT&T original nano sim is working again. Not great reception. About 5 Mbps LTE. But still better than 2!
SIM cards have NOTHING to do with reception, it's only an identification chip, to allow you to connect to the right network.
Walk few steps to find better antenna reception instead.

Topic closed.
Koziakauzu is offline   0 Reply With Quote
Old Nov 3, 2012, 09:06 AM   #39
Jtludwig
macrumors regular
 
Join Date: Mar 2012
Quote:
Originally Posted by Koziakauzu View Post
SIM cards have NOTHING to do with reception, it's only an identification chip, to allow you to connect to the right network.
Walk few steps to find better antenna reception instead.

Topic closed.
I didn't realize that Macrumors made people with only 7 posts moderators?
Jtludwig is offline   1 Reply With Quote
Old Nov 3, 2012, 09:47 AM   #40
Applejuiced
macrumors Nehalem
 
Applejuiced's Avatar
 
Join Date: Apr 2008
Location: At the iPhone hacks section.
Quote:
Originally Posted by vastoholic View Post
Will someone please remove the "Start new thread" button for this guy. Seriously. His posts are becoming more and more ridiculous every day.
I dont know why the Mods continue to allow this madness to continue.
Its obvious what he's doing here and its starting to get old.
Another thread reported but nothing done.
Applejuiced is offline   0 Reply With Quote
Old Nov 3, 2012, 11:38 AM   #41
erratikmind
macrumors 6502a
 
erratikmind's Avatar
 
Join Date: Apr 2009
Location: S.F./Las Vegas
Quote:
Originally Posted by Applejuiced View Post
I dont know why the Mods continue to allow this madness to continue.
Its obvious what he's doing here and its starting to get old.
Another thread reported but nothing done.
Apparently, the OP has many issues related to his/her newly acquired iP5 . . . Some of which, I can understand the queries. However, some are quite obtuse. Nonetheless, some of the threads are a bit entertaining.
erratikmind is offline   0 Reply With Quote

Reply
MacRumors Forums > iPhone, iPod and iPad > iPhone

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
Iphone unlocked, but I'm in Europe without original SIM card TarHeelBlue iPhone Tips, Help and Troubleshooting 2 Mar 31, 2014 03:43 PM
Airdropped pictures/videos don't preserve original date? Orka iOS 7 0 Sep 20, 2013 09:27 AM
How to activate iPhone 4 without original SIM card Paisley12 iPhone 2 Apr 15, 2013 03:32 PM
Why don't photo apps retain the original EXIF data Razeus iPhone and iPod touch Apps 3 Feb 8, 2013 03:43 PM
Can I (still) use my original iPhone by just swapping in my current 4S sim? james92se iPhone 10 Aug 8, 2012 01:57 PM

Forum Jump

All times are GMT -5. The time now is 08:53 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC