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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone 4 / iPhone 4S

iPhone 4 / iPhone 4S iPhone 4 / 4S

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Old 04-29-2011, 18:37   #1 (permalink)
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NO SIGNAL problem


Ok i have problem .. no signal
iphone 3GS
i have replace the dock connector with the anntena and it didnt help
so i take the board and install it Instead my personal board and it didnt help
so i try do restore it with itunes and nothing happen
the phone is not blocked for sure
it seems that the problem is in the board
any help?
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Old 04-29-2011, 19:14   #2 (permalink)
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No signal....what it show on your IP ? no bar and oprator name, or just searching, or no netz ?
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Old 04-29-2011, 20:00   #3 (permalink)
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yes problem modem:06.15. NO SIGNAL
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Old 04-29-2011, 20:45   #4 (permalink)
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where do i need to look ? at the main screen i see just no signal
no oprator name.. what do you mean IP? its not a wifi signal
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Old 04-29-2011, 20:47   #5 (permalink)
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"yes problem modem:06.15. NO SIGNAL "

i dont have 06.15 BB!!
its not this problem..
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Old 04-29-2011, 20:48   #6 (permalink)
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Quote:
Originally Posted by shaiiskiaev View Post
where do i need to look ? at the main screen i see just no signal
no oprator name.. what do you mean IP? its not a wifi signal
IP= iphone
on the left corner NO NETZ ? or total empty, or writing searching... ? when you take out the sim,, did it write NO SIM ?
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Old 04-29-2011, 20:50   #7 (permalink)
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yes it write no sim... its not searching problem..
its write NO SIGNAL
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Old 04-29-2011, 20:51   #8 (permalink)
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and the IP 100% not blocked
i am sure that its a Hardware problem and not software
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Old 04-29-2011, 20:56   #9 (permalink)
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Quote:
Originally Posted by shaiiskiaev View Post
and the IP 100% not blocked
i am sure that its a Hardware problem and not software
dont hurry, tell which IPSW Version now. and your baseband?
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Old 04-29-2011, 20:56   #10 (permalink)
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take a look to the 2 antenna filtercoils on backside of pcb. they often go lost when dock is changend

maybe this is helpfull
http://forum.gsmhosting.com/vbb/f631...oblem-1257196/
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Old 04-29-2011, 20:58   #11 (permalink)
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Ipsw 4.3.2 bb 05.16.02
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Old 04-29-2011, 21:00   #12 (permalink)
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"take a look to the 2 antenna filtercoils on backside of pcb. they often go lost when dock is changend

maybe this is helpfull
iphone 3gs network problem "

that can be the problem! let me cheak it... BRB
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Old 04-29-2011, 21:08   #13 (permalink)
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i cant find the Filtercoils that you talk about
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Old 04-29-2011, 21:10   #14 (permalink)
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Quote:
Originally Posted by shaiiskiaev View Post
Ipsw 4.3.2 bb 05.16.02
did you try other simcard?
this echo, will be hardware,, and only the coil filter, on 3gs you have the coil on the top not on the back, so check L 3RF still on board or it is open
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Old 04-29-2011, 21:15   #15 (permalink)
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i think i find the Filtercoils
its near to the dock anntena connector?

yes i have try another simcard..

somone rape the board when he tryed to open the phone between the bazel and the cover

thats the reson that i know its hardware problem..

what is L 3RF ?
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