iPhone 3GS can't finish activation, no signal, no wi-fi - GSM-Forum

nidirex · 12-18-2010, 20:11

Hi t-guys (technicians, tyrannosaurus, whatever you want

), another question on an iPhone 3GS.

The phone work perfeclty, except wi-fi (not detected) and gsm/3G signal.. therefore, after a firmware upgrade, is impossible to finish the activation. The signal is absent, equally if I switch from Automatic->manual (in Settings->Carrier).

Antenna's flat cable is good.

You have a solution? Thanks in advance

switch998 · 12-19-2010, 05:22

Solder in new inductors if water damage, try cleaning the green IC with 3 components on it by the SKY77340.

AutoDelete · 12-19-2010, 08:14

r u ready restore again with diferent Firmware?

nidirex · 12-19-2010, 09:07

Quote:

Originally Posted by switch998

Solder in new inductors if water damage, try cleaning the green IC with 3 components on it by the SKY77340.

No water damage sign (visible), but... what inductor?

Green IC.. are you talking about green fuse?

I tried to reball the SKY77340... nothing.

nidirex · 12-19-2010, 09:07

Quote:

Originally Posted by AutoDelete

r u ready restore again with diferent Firmware?

Sure.. from 4.0.2 to 4.1

nidirex · 12-19-2010, 10:08

Ops.. I've forget.. after a complete charge, the phone discharge in 5-6 ore ave in stand-by..

switch998 · 12-19-2010, 16:51

Quote:

Originally Posted by nidirex

Ops.. I've forget.. after a complete charge, the phone discharge in 5-6 ore ave in stand-by..

Check if PMIC gets hot.

nidirex · 12-19-2010, 17:17

Quote:

Originally Posted by switch998

Check if PMIC gets hot.

Uhmm.. no, temp is normal..

12-18-2010, 20:11	#1 (permalink)
nidirex Insane Poster Join Date: Sep 2010 Posts: 67 Member: 1387214 Status: Offline Thanks Meter: 17	iPhone 3GS can't finish activation, no signal, no wi-fi Hi t-guys (technicians, tyrannosaurus, whatever you want ), another question on an iPhone 3GS. The phone work perfeclty, except wi-fi (not detected) and gsm/3G signal.. therefore, after a firmware upgrade, is impossible to finish the activation. The signal is absent, equally if I switch from Automatic->manual (in Settings->Carrier). Antenna's flat cable is good. You have a solution? Thanks in advance

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12-19-2010, 05:22	#2 (permalink)
switch998 Insane Poster Join Date: Jun 2008 Posts: 76 Member: 785337 Status: Offline Thanks Meter: 22	Solder in new inductors if water damage, try cleaning the green IC with 3 components on it by the SKY77340.

12-19-2010, 08:14	#3 (permalink)
AutoDelete Freak Poster Join Date: Jan 2010 Posts: 273 Member: 1216441 Status: Offline Thanks Meter: 25	r u ready restore again with diferent Firmware?

12-19-2010, 10:08	#6 (permalink)
nidirex Insane Poster Join Date: Sep 2010 Posts: 67 Member: 1387214 Status: Offline Thanks Meter: 17	Ops.. I've forget.. after a complete charge, the phone discharge in 5-6 ore ave in stand-by..