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My iPhone 4 signal issues are gone...

Uh I have a possible reason this fixed the problem.

After taking my sim card out to test this I inspected it closer for the first time.

The metal part of the sim card is not centered and is contacting the sim tray. The sim tray is steel and the sim tray is contacting the outer antenna band. Once you touch the phone, this could be causing a sim issue.

If when you touch the antenna line on the lower left it changes the state of frequency, power or what ever, it might actually be messing with the sim card.

The metal on the sim is connected to the sim tray, the sim tray is connected to the antenae and the antenae is connected to your hand when you touch the phone.

Take a look at your sim card and see if the metal is just off center enough to touch the tray. This might be so simple it's stupid nobody has thought of this.
 
jav6454 said:
Demand != asking... so yeah, people may have a hard time listening. Anyways, lets leave this at "you are tired". End of the day here too.
Click to expand...

haha Plus this forum has just been a nut house. I was being sarcastic when I said demand. I'm not THAT much of an ass.
 
shawntkeating said:
Uh I have a possible reason this fixed the problem.

After taking my sim card out to test this I inspected it closer for the first time.

The metal part of te sim card is not centered and is contacting the sim tray. The sim tray is steel. The sim tray is contacting the outer antenna band.

If when you touch the antenna line on the lower left it changes the state of frequency, power or what ever, it might actually be messing with the sim card.

Take a look at your sim card and see if the metal is just of center enough to touch the tray. This might be so simple it's stupid nobody has thought of this.
Click to expand...

That might be a more precise explanation, but if that were the case, wouldn't that short out the SIM card contact points and hence cause signal loss immediately?
 
jav6454 said:
That might be a more precise explanation, but if that were the case, wouldn't that short out the SIM card contact points and hence cause signal loss immediately?
Click to expand...

My first phone had constant No Sim error messages that was fixed by a new SIM. Some people still have this issue even after swapping SIMs. (I have a 5 page thread full of people with the issue)

Maybe it's worse on some causing an actual short, and those that it's not as bad it's just affecting the SIMs performance?


See I'm working with you here..

;)
 
jav6454 said:
That might be a more precise explanation, but if that were the case, wouldn't that short out the SIM card contact points and hence cause signal loss immediately?
Click to expand...

I have no idea what it's suppose to do. All I know is the metal of the sim card is connected to the sim tray, the sim tray is connected to the antennae and the antennae is connected to your hand.


This could cause signal issues. There is a reason the metal part of the sim card is surrounded by plastic.
 
Ferris23 said:
My first phone had constant No Sim error messages that was fixed by a new SIM. Some people still have this issue even after swapping SIMs. (I have a 5 page thread full of people with the issue)

Maybe it's worse on some causing an actual short, and those that it's not as bad it's just affecting the SIMs performance?


See I'm working with you here..

;)
Click to expand...

That is true. But how can I explain the signal loss fixture? I mean, it is no magic event and I am dam sure I did nothing to the phone but reinstert the SIM card.


dukebound85 said:
it sems even more sensitive after have doing this actually
Click to expand...

Sorry to hear this :( Try again perhaps and check contact points?
 
I find this rather interesting that removing the SIM fixed your issue. Before I sold my 3G, wifi stopped working. Under settings, it was grayed out and I couldn't select anything. A few days before I sold my 3G, I took the SIM out of it and put it in my backup to make sure that was still working. When I put it back into my 3G and turned it on, wifi started working again. I had tried resetting it many times and wiping it clean, but still no wifi. Pulling the SIM is the only thing that I did differently.
 
jav6454 said:
Well, like many of people here I had the obnoxious signal loosing issue that is affecting a staggering amount of iPhone 4 users. However, I never realized I inadvertedly fixed the issue until just 10 minutes ago. I had signal issues since Day 1.

Bear with me thru this small story. I saw here a thread on MacRumors about a user experiencing camera issues on his iPhone 4. Said issue was that the camera showed a green spot in the center. I was sorta curious but never really paid much attention to it. This was 4 days ago. Flash forward to yesterday.

I was on the Apple Store picking out a new case for my iPhone 4, along with the respective screen protector. While I was doing that I saw an empty iPhone 4 demo unit and I decided to test drive FaceTime. I fired up both my iPhone 4 and the demo unit and connected. Disaster struck, my iPhone suffered from the same green spot effect as the iPhone from the user on MacRumors. Knowing full well, it was a hardware problem I set up an appointment for today at 6:30 PM.

Flash forward to today 6:30 PM. I got there at 6:15 and the Genius helped me out right away. He saw the problem, diagnosed my phone and concluded as previously stated it was hardware problem. Obviously warranty kicks in. He takes out my Micro SIM card and puts in the new iPhone (this was a brand new, not refurb unit). He activates it and hands it to me for mini inspection. first thing I do is check the camera, and against ALL odds, the same issue plagued this new phone. The Genius and I were, to say the least, shocked. Same issue, different phone. Now, how does this relate to the signal loss? Well, I am getting there so hang on tight.

The Genius does a comparisson between my iPhone and replacement unit to find the exact spot. He then pulls out his and does the comparisson to find his iPhone 4 too suffers from the dreaded green blob/spot. He then tells me there is no other replacement unit for my iPhone and that I had 2 choices. Take my current iPhone and wait if a software fix comes along, or take the replacement phone with me. I decided to wait and keep my phone (it is a hassle to resotre everything to previous state). So the Genius reswaped the SIM card to my phone back and handed it to me. (My iPhone spent 15 minutes with out SIM card while the Genius did all his tests on my and replacement unit, and while he asked for 2nd opinions on the green blob issue)

I went on my merry way, but realized something now. No matter what position I held my iPhone 4 in, the signal never decreased. I held it the many ways I know the signal issue pops and nothing. No bar loss, no signal loss, no call drop. NOTHING. So there you have it.

I am theorizing that moving the SIM card had something to do with the signal issue, because the only thing I have done to my iPhone 4 differently is take out and reinsert the SIM card. Other than that no other changes to it. No setting change, no software change no nothing. Just reinsertion of the SIM card. Now, to prove my theory, I need people who can test this and see if this fixes their iPhone. I know it did on mine, but on yours?

Check it out.


PS - No, I did not have the green blob issue fixed.
Click to expand...


I did it. It worked.

For those of you who it didnt work for, follow my step by step and it should be fine.

1. Turn off phone.

2. Remove sim.

3. Pop it back in.

4. Turn on phone.

5. Death grip.

Absolutely no loss of signal or bars. I am shocked. This guy should get paid for his discovery.

Hats off to you friend.
 
shawntkeating said:
Uh I have a possible reason this fixed the problem.

After taking my sim card out to test this I inspected it closer for the first time.

The metal part of the sim card is not centered and is contacting the sim tray. The sim tray is steel and the sim tray is contacting the outer antenna band. Once you touch the phone, this could be causing a sim issue.

If when you touch the antenna line on the lower left it changes the state of frequency, power or what ever, it might actually be messing with the sim card.

The metal on the sim is connected to the sim tray, the sim tray is connected to the antenae and the antenae is connected to your hand when you touch the phone.

Take a look at your sim card and see if the metal is just off center enough to touch the tray. This might be so simple it's stupid nobody has thought of this.
Click to expand...

You may be onto something here.
 
Been there...done that....dropped call while talking to Apple just now. Not holding the phone, on speaker.
 
ryuuzaki said:
I did it. It worked.

For those of you who it didnt work for, follow my step by step and it should be fine.

1. Turn off phone.

2. Remove sim and leave it out for ATLEAST 20 minutes.

3. Pop it back in.

4. Turn on phone.

5. Death grip.

Absolutely no loss of signal or bars. I am shocked. This guy should get paid for his discovery.

Hats off to you friend.
Click to expand...


Did you do this in the same location where you could recreate the issue previously? Many people (myself included - with a friend's phone - not mine) have been able to recreate the issue in one location but not in another due to possible signal differences.
 
IT ACTUALLY WORKED! I removed my sim as the OP stated. Inspected and the microsim contacts appeared to be touching the sim tray. i repositioned it, slid the tray and turned phone back on.....NO MORE SIGNAL LOSS!!! I can not replicate the signal loss at all.

OP, not sure if this is everyone's issue, but it was mine. Your theory works and I want to thank you for sharing it. +10000 for you :apple:

:cool:
 
what are you guys using around the house to eject the microsim? Even a paperclip looks too broad to poke in that little hole (yes, we know, that's what she said)
 
shawntkeating said:
Uh I have a possible reason this fixed the problem.

After taking my sim card out to test this I inspected it closer for the first time.

The metal part of the sim card is not centered and is contacting the sim tray. The sim tray is steel and the sim tray is contacting the outer antenna band. Once you touch the phone, this could be causing a sim issue.

If when you touch the antenna line on the lower left it changes the state of frequency, power or what ever, it might actually be messing with the sim card.

The metal on the sim is connected to the sim tray, the sim tray is connected to the antenae and the antenae is connected to your hand when you touch the phone.

Take a look at your sim card and see if the metal is just off center enough to touch the tray. This might be so simple it's stupid nobody has thought of this.
Click to expand...

I just pulled my SIM tray out and noticed this exact thing and was about to post it on here, then saw your post. My SIM tray is also touching the contacts of my SIM card, and no matter how I position it, I can't get it not to touch. So for me, it didn't work as a fix. I'm going to see if I can come up with a way to isolate my SIM card from the metal tray, and see if that fixes my issue, as my reception issue is EASILY repeatable.

As others have said, you might be on to something here.
 
Does the phone need to be off to eject the microsim? Could anyone who has had luck with this please post an easy 1,2,3 process of what you did?

Thanks
 
I just want to say this fix worked for me. I had pretty severe reception issues too, and I registered an account just to say thanks.

Thumbs up.
 
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