iPhone Tested Hardware Solutions

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iPhone 4 PCB Front

 

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iphone 3gs main board informations it is usefull for hardware

 

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iphone 3gs main board......

 

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this is hardware info for iphone

 

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some more iphone pbc info.......

 

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iphone 3g no service no gsm signal

 

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iPhone 3gs Power I.C. replacement (Process How To...)

Case:

iPhone 3gs fast drained batt and getting hot if it charge...


Cause:

Mainboard shorted


Solution:

Change Power Management IC...

Here's the way how to replace IC:

Preparing for reballing leads... I'm using heat resistant tape way of resoldering...

Mounting on solder plate...

Put solder paste (lead)...

Make sure lead paste must evenly distributed to holes...

Apply low heat and lead gradually melting...

After reballs from plate must reheat IC for even and fine lead settling...

Mounting to MB, heat must controled to prevent IC/MB spoiled...

Here's new IC mounted perfectly and beside is the shorted IC...

After assemble and plug in charge... It works but still lowbatt... (noticed at photo only 5 percent batt charged and the DATE when phone was dead)

 

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iphone 3gs no light solution to all

 

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powers the backlight on the LCD

 

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iPhone 3Gs Touchscreen doesnt work

This image has been resized. Click this bar to view the full image. The original image is sized 952x725.

 

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The sensor is installed under touch screen near the ear-speaker. It may need to clean or replace the new one.

 

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