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Current version by: Kelsea Weber ,

Title:

iPhone 3G keeps losing signal/service

Text:

== Problem: ==
 
iPhone 3G loses signal randomly and for no obvious reason, everything else works just fine.
 
== Circumstances: ==
 
* Until a few days ago the phone has never been dropped. Then it was dropped from about 1 meter, twice...
* The phone is just over 1 year old
 
== Tried: ==
 
* Waiting
** Nothing..
* Rebooting
** Brings service back for a while
* Activating and deactivating flight mode
** Brings service back for a while
* Re-seating sim-card
** Brought back service initially, but didn't solve problem
 
== Theories ==
 
# Loose cable?
** I don't see how that fits in. I mean, re-booting gets the service back. If it was a loose cable it shouldn't help to re-boot..
# ??
# My observations indicate that the phone is only ever on 3G network. Could the problem be in or around the UMTS chip?
** Considering logic board replacement or contacting someone doing BGA soldering.
 
== Update 1 ==
 
Yesterday I changed the whole dock assembly to see if that could fix the problem.
 
Today it lost connection again. So it didn't work.
 
Now I'm considering to get a new iPhone or doing a logicboard replacement on this one.. Also I could find someone local that does BGA soldering and ask them to find the chip that has to be loose on the logicboard...
 
Either that or I'll decide that I can't afford it because I just bought an iPad....
 
I also added a third theory.
 
Either way, thanks again for all your help and comments!

dispositivo:

iPhone 3G

Status:

open

Accepted Answer:

22335

Edit by: rousp ,

Title:

iPhone 3G keeps losing signal/service

Text:

== Problem: ==
 
iPhone 3G loses signal randomly and for no obvious reason, everything else works just fine.
 
== Circumstances: ==
 
* Until a few days ago the phone has never been dropped. Then it was dropped from about 1 meter, twice...
* The phone is just over 1 year old
 
== Tried: ==
 
* Waiting
** Nothing..
* Rebooting
** Brings service back for a while
* Activating and deactivating flight mode
** Brings service back for a while
* Re-seating sim-card
** Brought back service initially, but didn't solve problem
 
== Theories ==
 
# Loose cable?
** I don't see how that fits in. I mean, re-booting gets the service back. If it was a loose cable it shouldn't help to re-boot..
# ??
# My observations indicate that the phone is only ever on 3G network. Could the problem be in or around the UMTS chip?
** Considering logic board replacement or contacting someone doing BGA soldering.
 
== Update 1 ==
 
Yesterday I changed the whole dock assembly to see if that could fix the problem.
 
Today it lost connection again. So it didn't work.
 
Now I'm considering to get a new iPhone or doing a logicboard replacement on this one.. Also I could find someone local that does BGA soldering and ask them to find the chip that has to be loose on the logicboard...
 
Either that or I'll decide that I can't afford it because I just bought an iPad....
 
I also added a third theory.
 
Either way, thanks again for all your help and comments!

dispositivo:

iPhone 3G

Status:

open

Accepted Answer:

22335

Edit by: rousp ,

Title:

iPhone 3G keeps losing signal/service

Text:

== Problem: ==
 
iPhone 3G loses signal randomly and for no obvious reason, everything else works just fine.
 
== Circumstances: ==
 
* Until a few days ago the phone has never been dropped. Then it was dropped from about 1 meter, twice...
* The phone is just over 1 year old
 
== Tried: ==
 
* Waiting
** Nothing..
* Rebooting
** Brings service back for a while
* Activating and deactivating flight mode
** Brings service back for a while
* Re-seating sim-card
** Brought back service initially, but didn't solve problem
 
== Theories ==
 
# Loose cable?
** I don't see how that fits in. I mean, re-booting gets the service back. If it was a loose cable it shouldn't help to re-boot..
# ??
# My observations indicate that the phone is only ever on 3G network. Could the problem be in or around the UMTS chip?
** Considering logic board replacement or contacting someone doing BGA soldering.
 
== Update 1 ==
 
Yesterday I changed the whole dock assembly to see if that could fix the problem.
 
Today it lost connection again. So it didn't work.
 
Now I'm considering to get a new iPhone or doing a logicboard replacement on this one.. Also I could find someone local that does BGA soldering and ask them to find the chip that has to be loose on the logicboard...
 
Either that or I'll decide that I can't afford it because I just bought an iPad....
 
Either way, thanks again for all your help and comments!

dispositivo:

iPhone 3G

Status:

open

Accepted Answer:

22335

Edit by: rousp ,

Title:

iPhone 3G keeps losing signal/service

Text:

== Problem: ==
 
iPhone 3G loses signal randomly and for no obvious reason, everything else works just fine.
 
== Circumstances: ==
 
* Until a few days ago the phone has never been dropped. Then it was dropped from about 1 meter, twice...
* The phone is just over 1 year old
 
== Tried: ==
 
* Waiting
** Nothing..
* Rebooting
** Brings service back for a while
* Activating and deactivating flight mode
** Brings service back for a while
* Re-seating sim-card
** Brought back service initially, but didn't solve problem
 
== Theories ==
 
# Loose cable?
** I don't see how that fits in. I mean, re-booting gets the service back. If it was a loose cable it shouldn't help to re-boot..
# ??
 
== Update 1 ==
 
Yesterday I changed the whole dock assembly to see if that could fix the problem.
 
Today it lost connection again. So it didn't work.
 
Now I'm considering to get a new iPhone or doing a logicboard replacement on this one.. Also I could find someone local that does BGA soldering and ask them to find the chip that has to be loose on the logicboard...
 
Either that or I'll decide that I can't afford it because I just bought an iPad....
 
Either way, thanks again for all your help and comments!

dispositivo:

iPhone 3G

Status:

open

Accepted Answer:

22335

Edit by: rousp ,

Title:

iPhone 3G keeps losing signal/service

Text:

== Problem: ==
 
iPhone 3G loses signal randomly and for no obvious reason, everything else works just fine.
 
== Circumstances: ==
 
* Until a few days ago the phone has never been dropped. Then it was dropped from about 1 meter, twice...
* The phone is just over 1 year old
 
== Tried: ==
 
* Waiting
** Nothing.. Still no signal..
** Nothing.. Still no signal..
* Rebooting
** Brings service back for a while
* Activating and deactivating flight mode
** Brings service back for a while
* Re-seating sim-card
** Brought back service initially, but didn't solve problem
 
== Theories ==
 
# Loose cable?
** I don't see how that fits in. I mean, re-booting gets the service back. If it was a loose cable it shouldn't help to re-boot..
# ??

dispositivo:

iPhone 3G

Status:

open

Edit by: rousp ,

Title:

iPhone 3G keeps losing signal/service

Text:

== Problem: ==
 
iPhone 3G loses signal randomly and for no obvious reason, everything else works just fine.
 
== Circumstances: ==
 
* Until a few days ago the phone has never been dropped. Then it was dropped from about 1 meter, twice...
* The phone is just over 1 year old
 
== Tried: ==
 
* Waiting
** Nothing.. Still no signal..
* Rebooting
** Brings service back for a while
* Activating and deactivating flight mode
** Brings service back for a while
* Re-seating sim-card
** Didn't helpBrought back service initially, but didn't solve problem
** Didn't helpBrought back service initially, but didn't solve problem
 
== Theories ==
 
# Loose cable?
** I don't see how that fits in. I mean, re-booting gets the service back. If it was a loose cable it shouldn't help to re-boot..
# ??

dispositivo:

iPhone 3G

Status:

open

Original post by: rousp ,

Title:

iPhone 3G keeps losing signal/service

Text:

== Problem: ==

iPhone 3G loses signal randomly and for no obvious reason, everything else works just fine.

== Circumstances: ==

* Until a few days ago the phone has never been dropped. Then it was dropped from about 1 meter, twice... 
* The phone is just over 1 year old

== Tried: ==

* Waiting
** Nothing.. Still no signal..
* Rebooting
** Brings service back for a while
* Activating and deactivating flight mode
** Brings service back for a while
* Re-seating sim-card
** Didn't help

== Theories ==

# Loose cable?
** I don't see how that fits in. I mean, re-booting gets the service back. If it was a loose cable it shouldn't help to re-boot..
# ??

dispositivo:

iPhone 3G

Status:

open