Iphone hardware and software solutions in 24 hrs - Page 28 - GSM-Forum

irangsm · 01-04-2010, 09:50

iphone 3gs no light?

randyoo · 01-04-2010, 21:36

Hello!

I replaced the battery in my iPhone 3G, and now it crashes like crazy, even after restore to virgin Apple firmware. Different battery didn't help, so I swapped the logic board into another phone and same problem, so it's definitely a problem with the logic board. Seem to crash whenever I do something that uses extra power, like wifi, bluetooth, gps, etc... So I think the voltage is dropping.

Any suggestions how I can diagnose this problem? Where is the voltage regulation taking place?

I couldn't see any visible damage, and I was very careful when I replaced the battery, but the phone was working perfectly before I opened it... Any ideas are welcome. Thanks!!

marcoco · 01-05-2010, 19:46

Hi,my i phone 3g work fine in gsm network but in 3g sometimes it show 3g signal but i can't phone, and sometimes it show me "no network".Wich parts i should rehot?

Yonas Tewelde · 01-06-2010, 06:20

how can I repair the I-phone 8gb model nnmber A1241.The screen shows cracking white! I don't know how to open it! Please, help me to know the disassembly manual and send me the solution urgently! With great honour for all members!

azhar63 · 01-06-2010, 07:06

I have a 2g 8gb it has signal problem in the open place work fine but in the room or factory area not woking. in the same place other iphone working fine. pls help me if some one can
regards

SoSimple · 01-06-2010, 16:09

Hello guys,

I have a very particular situation. I have a iPhone that only turns on (but don't start at all) with the charger connected. I've changed for a new one and its the same thing. And better than that, I've changed his mother-board, for another one. Well, this mother-board in another chassis(and everything new) doesn't work either without charger connected, and a good board on the chassis of damaged iPhone worked fine! So, I concluded that the problem is on Board!

With charger, iPhone turn on, apears the Apple logo but nothing else, he doesn't really starts. And I'm sure it isn't a SW or FW problem. It is for sure a HW problem.

Anyone have an idea of what could be the problem?

Regards,

SoSimple

Mad Scientist · 01-06-2010, 22:02

Quote:

Originally Posted by SoSimple

Hello guys,

I have a very particular situation. I have a iPhone that only turns on (but don't start at all) with the charger connected. I've changed for a new one and its the same thing. And better than that, I've changed his mother-board, for another one. Well, this mother-board in another chassis(and everything new) doesn't work either without charger connected, and a good board on the chassis of damaged iPhone worked fine! So, I concluded that the problem is on Board!

With charger, iPhone turn on, apears the Apple logo but nothing else, he doesn't really starts. And I'm sure it isn't a SW or FW problem. It is for sure a HW problem.

Anyone have an idea of what could be the problem?

Regards,

SoSimple

You said, iPhone so i admit that it's a first gen.

Here's your fix:

Thanks button would be enough for me

Cheers,

tonl1234567890 · 01-06-2010, 23:25

hi! i have a chinese iphone and i want to change the language to swedish. How can i do it? if anybody help me with that.

tonl1234567890 · 01-06-2010, 23:27

hi.. how can u connect the chinese iphone to pc? because it doesen't work with itunes.

keepitup2 · 01-07-2010, 03:15

Recently aquired a 2g 8gb iphone with 3.12 firmware unlocked and not jailbroke. So the first thing I did was to run blackra1n,then used bootneuter to unlock and everything went fine. Got a prepaid Tmobile SIM card to try the phone out. No problem, could send and receive calls. Happy Camper! The I noticed that the phone number that I got was not a local exchange. I got on an online chat with Tmobile to change my number to a local exchange and in a few minutes my number was changed. I again tested to see if I could send and receive calls, everything was fine. Real happy camper...........Until just after midnight I went to make a call. I had three bars of service, I placed the call....CAll Failed!!! Then searching for signal, followed by No Service. A reboot of the phone would bring service back. I tried calling the iphone. This would cause the iphone to go to searching for signal, then no service. Explained my problem to the agent on the online chat, she tried several things same result. She seems to think it was a signal problem????? She claimed all the settings were correct. She suggested I try the SIM card in another phone, which I did and it worked fine. I have restored the phone,ran blackra1n, bootnueter again, same result. But now I have addtional problem the WIFI is greyed out!!! No network reset or reset all settings will bring it back!! I believed the WIFI chip might have overheated with all of the searching for signal. I ran Irecovery and tried "Radio readnvram" and did not get a responce back. Any ideas?? Anybody!!! This phone was working perfect, NOTHING was done between working and not. Did not even download an App or use one!!!! I open to any and all ideas at this point!!!!

kiten · 01-08-2010, 01:57

Quote:

Originally Posted by raj_farhaz

i have i phone 2g and its some part of touchplate not working then what i have to do please halp me..........

change touch.........................................

kiten · 01-08-2010, 02:08

Quote:

Originally Posted by irangsm

iphone 3gs no light?

may be this can help you.......................

islambey · 01-08-2010, 15:38

my iphone have mic problem... have u any manuel...

SoSimple · 01-08-2010, 20:26

Quote:

Originally Posted by Mad Scientist

You said, iPhone so i admit that it's a first gen.

Here's your fix:

Thanks button would be enough for me

Cheers,

Thank you very much Mad Scientist, but the iPhone is really a 3G!

Do you have solution for it too?

Regards,

SoSimple

janhunzai · 01-13-2010, 16:05

iphon 3g INSERT SIM PROBLEM solutione????????????????????plz/plz

01-04-2010, 21:36	#407 (permalink)
randyoo Junior Member Join Date: Jan 2010 Posts: 4 Member: 1200580 Status: Offline Thanks Meter: 0	iPhone 3G crashes, logic board problem Hello! I replaced the battery in my iPhone 3G, and now it crashes like crazy, even after restore to virgin Apple firmware. Different battery didn't help, so I swapped the logic board into another phone and same problem, so it's definitely a problem with the logic board. Seem to crash whenever I do something that uses extra power, like wifi, bluetooth, gps, etc... So I think the voltage is dropping. Any suggestions how I can diagnose this problem? Where is the voltage regulation taking place? I couldn't see any visible damage, and I was very careful when I replaced the battery, but the phone was working perfectly before I opened it... Any ideas are welcome. Thanks!!

01-05-2010, 19:46	#408 (permalink)
marcoco Insane Poster Join Date: Feb 2008 Posts: 92 Member: 705400 Status: Offline Thanks Meter: 9	Iphone 3g network problem Hi,my i phone 3g work fine in gsm network but in 3g sometimes it show 3g signal but i can't phone, and sometimes it show me "no network".Wich parts i should rehot?

01-06-2010, 16:09	#411 (permalink)
SoSimple Freak Poster Join Date: Aug 2003 Location: Portugal Posts: 132 Member: 36698 Status: Offline Thanks Meter: 4	Only turns on with charger connected!! Hello guys, I have a very particular situation. I have a iPhone that only turns on (but don't start at all) with the charger connected. I've changed for a new one and its the same thing. And better than that, I've changed his mother-board, for another one. Well, this mother-board in another chassis(and everything new) doesn't work either without charger connected, and a good board on the chassis of damaged iPhone worked fine! So, I concluded that the problem is on Board! With charger, iPhone turn on, apears the Apple logo but nothing else, he doesn't really starts. And I'm sure it isn't a SW or FW problem. It is for sure a HW problem. Anyone have an idea of what could be the problem? Regards, SoSimple

01-07-2010, 03:15	#415 (permalink)
keepitup2 Junior Member Join Date: Dec 2009 Posts: 3 Member: 1196835 Status: Offline Thanks Meter: 0	2g iphone woes Recently aquired a 2g 8gb iphone with 3.12 firmware unlocked and not jailbroke. So the first thing I did was to run blackra1n,then used bootneuter to unlock and everything went fine. Got a prepaid Tmobile SIM card to try the phone out. No problem, could send and receive calls. Happy Camper! The I noticed that the phone number that I got was not a local exchange. I got on an online chat with Tmobile to change my number to a local exchange and in a few minutes my number was changed. I again tested to see if I could send and receive calls, everything was fine. Real happy camper...........Until just after midnight I went to make a call. I had three bars of service, I placed the call....CAll Failed!!! Then searching for signal, followed by No Service. A reboot of the phone would bring service back. I tried calling the iphone. This would cause the iphone to go to searching for signal, then no service. Explained my problem to the agent on the online chat, she tried several things same result. She seems to think it was a signal problem????? She claimed all the settings were correct. She suggested I try the SIM card in another phone, which I did and it worked fine. I have restored the phone,ran blackra1n, bootnueter again, same result. But now I have addtional problem the WIFI is greyed out!!! No network reset or reset all settings will bring it back!! I believed the WIFI chip might have overheated with all of the searching for signal. I ran Irecovery and tried "Radio readnvram" and did not get a responce back. Any ideas?? Anybody!!! This phone was working perfect, NOTHING was done between working and not. Did not even download an App or use one!!!! I open to any and all ideas at this point!!!!

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01-04-2010, 09:50	#406 (permalink)
irangsm Freak Poster Join Date: Apr 2003 Age: 46 Posts: 129 Member: 26812 Status: Offline Thanks Meter: 3	iphone 3gs no light?

01-06-2010, 06:20	#409 (permalink)
Yonas Tewelde Insane Poster Join Date: Nov 2009 Posts: 65 Member: 1157279 Status: Offline Thanks Meter: 7	how can I repair the I-phone 8gb model nnmber A1241.The screen shows cracking white! I don't know how to open it! Please, help me to know the disassembly manual and send me the solution urgently! With great honour for all members!

01-06-2010, 07:06	#410 (permalink)
azhar63 No Life Poster Join Date: May 2005 Posts: 1,076 Member: 149305 Status: Offline Sonork: 100.1612778 Thanks Meter: 804	I have a 2g 8gb it has signal problem in the open place work fine but in the room or factory area not woking. in the same place other iphone working fine. pls help me if some one can regards

01-06-2010, 23:25	#413 (permalink)
tonl1234567890 Junior Member Join Date: Jan 2010 Posts: 2 Member: 1202370 Status: Offline Thanks Meter: 0	hi! i have a chinese iphone and i want to change the language to swedish. How can i do it? if anybody help me with that.

01-06-2010, 23:27	#414 (permalink)
tonl1234567890 Junior Member Join Date: Jan 2010 Posts: 2 Member: 1202370 Status: Offline Thanks Meter: 0	hi.. how can u connect the chinese iphone to pc? because it doesen't work with itunes.

01-08-2010, 15:38	#418 (permalink)
islambey Junior Member Join Date: Nov 2008 Posts: 21 Member: 898839 Status: Offline Thanks Meter: 0	my iphone have mic problem... have u any manuel...

01-13-2010, 16:05	#420 (permalink)
janhunzai Junior Member Join Date: Oct 2009 Location: pak Posts: 20 Member: 1147956 Status: Offline Sonork: manzoorhunzai Thanks Meter: 1	iphon 3g INSERT SIM PROBLEM solutione????????????????????plz/plz