Q: iPhone 4S drops 3G, have to restart phone to get it back

The update was were easy to install directly. Go to iPhone's settings and click install. It took just 1 min.  I hope the update helps. However, there is no statement that this update could fix  3G phone network or mobile network drops.

Got the update on yesterday evening. Put on SIM-Lock and prayed. This morning i came through the dead-spot i have in my area, and........ the thing went searching  - and after I left the dead-spot - no connection .

The IOS update did not fix my issue   

Mine is an Iphone 4.

Same issue here, iOS 5.0.1 did not fix my problems.

It seems my phone is still good to go, and I´ve even put on sim code again.

Have you other guys tried the tip on turning off sim code with another phone (perhaps another brand)?

Turimblar: What tip? Please explain further.

There is no data that the iOS 5.0.1 update could fix this problem. Just turn off the PIN and be happy if this helps.

I got  a new iPhone 4S which works fine, that a solution, too.

If you would like to help Apple to fix this problem, you could contact to Apple to get instructions how to provide  precise information to Apple about your technical problem.

This is one example (my iPhone4S is working fine, so I not able to send specific bug report to Apple, but you might be able?):

On Nov 10, 2011, at 11:47 PM, devbugs@apple.com wrote:

Hello Antti,

This is a courtesy email regarding Bug ID# xxxxxx

Engineering has requested the following information in order to further investigate this issue:

Please attach MA and CSI (baseband) logs to the bug report.

To start the logging, follow the steps below:

1) Dial "*K00L*MA#" ("*5005*62#")

2) Dial "*KOOL*CSI#" ("*5005*274#")

3) Wait a few moments for the command to process

4) Power off the device by holding down the power button and swiping to turn it off

5) Power on the device again

6) At this point MA, CSI logging is enabled,

The buffer to hold the logs is only 1.5 MB so, make sure to enable logging when you see the issue.

When the issue occurs, follow the steps below to save the logs:

1) Dial "*K00L*STATE#" ("*5005*78283#")

2) Press "Reply" (big green button)

3) Enter a description of the problem

4) Press "Send" (upper right corner)

The logs are saved on the device in "/Library/Logs/CrashReporter/Baseband." After an iTunes sync, a copy should appear in:

/Library/Logs/CrashReporter/MobileDevice/<your device's name>/Baseband

Please attach a copy to your bug report.

To disable logging:

- #5005*62# (#K00L*MA#)

- #5005*278# (#K00L*ART#)

- #5005*26735# (#K00L*CORE5#)

Bug reports requiring your update will appear under ‘My Originated Problems’. Please review this bug report and provide the requested information via the Apple Bug Reporter.

<http://bugreport.apple.com>

Thank you for your assistance in helping us discover and isolate bugs within our products.

Best Regards,

Apple Developer Support

Apple Developer Connection

Worldwide Developer Relations

*****************************************************************

THE INFORMATION CONTAINED IN THIS MESSAGE IS UNDER NON-DISCLOSURE

*****************************************************************

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

Bug ID #: xxx

Bug Title: 3G network permanent loss.

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

Summary: 

Steps to Reproduce:

Expected Results: normal 3G network function.

Actual Results:

Regression:

Notes:

Re: A Bug Reporter error has occurred

Apple Developer Bug Reporting [devbugs@apple.com]

Follow-up:

Hello Antti ,

Please file this bug or enhancement request using Apple Bug Reporter.

To ensure that the appropriate data is collected, it is required that all bug reports and enhancement requests be submitted via the Apple Bug Reporter. Using this tool for bug and enhancement submissions will allow you to track your issues online.

Please log in with your developer AppleID and password (the same login you use for other Apple developer web sites). If you have not registered for a free developer account, please do that first and then file your bug. You can register here:

http://developer.apple.com/programs/register/

If you have problems logging in, then please email us again at devbugs@apple.com, and we will help get your login issue resolved.

Apple Bug Reporter: <http://bugreport.apple.com>

Note: Cookies and JavaScript must be enabled in your browser for this tool to properly function.

Please take a moment now to file this bug report/enhancement request.

Thanks for understanding our policies.

Best Regards,

Reporting

Developer Bug Team

Apple Worldwide Developer Relations

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

Thank you for contacting Apple Developer Bug Reporting. This acknowledgment is automatically generated and does not require a reply.

Follow-Up: xxxxxxxx

Your follow-up message has been threaded to your original incoming correspondence (identified by the follow-up number listed at the top of this message).

If you have any additional information you would like to add to a bug that you have previously reported at the Apple Bug Reporter, or wish to check on the status of a bug, please update your report directly via the Apple Bug Reporter <http://bugreport.apple.com>. Please take a moment now to update your bug via the Apple Bug Reporter.

For additional information regarding bug reports, please refer to the Bug Reporting Best Practices and Bug Reporting Frequently Asked Questions found at:

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http://developer.apple.com/faq/bugreporting.html

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If you would like to submit a bug report but are not a participant in an Apple Developer Program, please visit the following URL for information on how to become a member:

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Sincerely,

The Bug Reporting Team

Apple, Inc.

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

As Antti51 explained, the "tip" with turning the pin code off with another phone. Then insert the sim card in your iPhone 4S again.

Still do not understand - cant see that Antti51 suggested to turn the pin code off with another phone?

He - and others - have suggested to turn pin code off - but not using another phone (cant see why it should make a difference to do it on another phone?)

No, sorry, my bad! Antti51 didn´t write about using another phone, I did, on page 6.

I meant that turning off the pin code did solve it for me, and I had to use another phone to do that, since my iPhone refused to let me.

It may not at all be the solution for your problem, but it worked for me. It either works, or not!

I also have the 3G issue which requires a restart to get it back.

I have never had my sim pin on

same sim card was used in my iPhone 4 with no issues

I also have a BB which shows 3G signal.

it seams to happen most when moving from wifi to cellular network.

the resent software update as not fixed it

I can only assume this is a hardware issue.

It seems disabling the SIM-Pin is working for me. My Iphone 4 is now finding cellular network again if it looses connection. But this also means security for me is not acceptable.

Apple - you are amateurs.....

PS: I read in another thread that some users have solved their problem by getting a new SIM card of 128k. (instead of 64k) - Have no idea what it means

Have a call sheduled with Apple care today to see what they say.

It seemed for me that turning the sim code back on (a few days ago) made the connection drop again, so I turned it off, yet again.

After turning the sim pin code off, I see that the battery is draining faster than what was usual on my old iPhone 4.

I can only come to the "layman" conclusion that there is a leak of battery usage when the phone searches for different connections (it´s of course just my subjective guess).

But my battery is still better than what others experience; some say they have a 20% drop on battery during the night, while I had only 4-5% this night.

In my Location services/system services settings I have shut off: diagnostics & usage, location based iAds and setting time zone.

On my iPhone 4, sometimes I could see 99 or 100% on my battery when I woke up in the morning (the battery was fully charged before I got to bed). So that way better than on my iPhone 4S.

I´m going to do a full drain on my battery (maybe this night), and then charge it up with the app Battery Doctor turned on and do the full cycle charge, and then the "trickle charge" (look up the mentioned app if interested).

I´ll report back here later.

Things have been getting even worse for me.

Ive posted this on another thead goin on about the same problems

Ive had the no signal, searching problem for over 4 weeks now. And doing a restore through itunes used to give me about 3 days of "normal" phone operation (i could call, send texts, etc) before it would lockup in its no signal, searching bull ****. Now restores do abosulety nothing, plus. Now the phone freezes and basicaly ***** a brick. When it starts to get ****** off, it would just freeze when i try to swipe between pages, or go through menus.Then it would have a no signal/searching seizure.

If apple actualy gave a **** and read about our problems, they would attempt to contact me and take my phone in for investigation. I have no way right now to call apple, and if i try to request service on their support site, it just gives me a "Can not complete" error bull ****.

***!!!

I am also not in the mood to go to a apple store (3 hrs away), and begin fighting with the "Fluffy" employees to get my phone replaced.

Outputs from my call with apple care- I guess you could call it the standrd actions

1. Complete wipe of phone back to factory settings

2. Restore phone

I was told this would rectify the isues.

3. If not then they would need to swap the unti out vi a trip to apple store ( non local to me)

I will try the above and also try a new SIM card and see if that resolves, if not then A new phone it is - will be waiting mind untill the first batch of 4S have been and gone and any updates applied to a remodling etc.

Cheers