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Versión actual por: Chris Stables ,

Texto:

Arbaman may be correct about audio IC repair.
·         Clean the solder up so there are no bridges.
·          Check that (*#06#) brings up an IMEI number.
If it doesn’t, remove the logic board from the housing and check the audio IC, you will probably find it has been reflowed or repaired with jumper wires.
 If it has been worked on the most likely scenario is that they have put too much heat on the audio IC causing the solder balls under the baseband CPU to expand and bridge causing the “no sim and or searching no service.” This will require the baseband CPU to be removed and reballed, it is not an easy job.
If the repairer was not experienced they might have thought the sim tray was the problem.
-If (*#06# does bring up the IMEI number go ahead and replace the sim reader.
+If (*#06#) does bring up the IMEI number and there is no sign of audio IC repair go ahead and replace the sim reader.

Estatus:

open

Editado por: Chris Stables ,

Texto:

Arbaman may be correct about audio IC repair.
·         Clean the solder up so there are no bridges.
·          Check that (*#06#) brings up an IMEI number.
If it doesn’t, remove the logic board from the housing and check the audio IC, you will probably find it has been reflowed or repaired with jumper wires.
- If it has been worked on the most likely scenario is that they have put too much heat on the audio IC causing the solder balls under the baseband IC to expand and bridge causing the “no sim and or searching no service.” This will require the baseband IC to be removed and reballed, it is not an easy job.
+ If it has been worked on the most likely scenario is that they have put too much heat on the audio IC causing the solder balls under the baseband CPU to expand and bridge causing the “no sim and or searching no service.” This will require the baseband CPU to be removed and reballed, it is not an easy job.
If the repairer was not experienced they might have thought the sim tray was the problem.
If (*#06# does bring up the IMEI number go ahead and replace the sim reader.

Estatus:

open

Aporte original por: Chris Stables ,

Texto:

Arbaman may be correct about audio IC repair.

·         Clean the solder up so there are no bridges.

·          Check that (*#06#) brings up an IMEI number.

If it doesn’t, remove the logic board from the housing and check the audio IC, you will probably find it has been reflowed or repaired with jumper wires.

 If it has been worked on the most likely scenario is that they have put too much heat on the audio IC causing the solder balls under the baseband IC to expand and bridge causing the “no sim and or searching no service.” This will require the baseband IC to be removed and reballed, it is not an easy job.

If the repairer was not experienced they might have thought the sim tray was the problem.

If (*#06# does bring up the IMEI number go ahead and replace the sim reader.

Estatus:

open