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realeric

macrumors 65816
Original poster
Jun 19, 2009
1,165
1,586
United States
Issue: "iPhone 4 consistently drops call when we are touching the lower left corner of the device."

How to fix it?

A. Permanent Fix:

  • Conductive anodizing on WiFi antenna => Nonconductive anodizing.
  • Conductive anodizing on UMTS antenna => Either conductive or nonconductive anodizing.

B. Temporary Fix (Fix it yourself):

  • Bumper
  • Case
  • Non-conductive Tape
C. Example (It works for me): :rolleyes::D
 

Attachments

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Sorry to be a noob...

What exactly is non-conductive tape? And did this completely fix your problem?
 
Issue: "iPhone 4 consistently drops call when we are touching the lower left corner of the device."

How to fix it?

A. Permanent Fix:

  • Conductive anodizing on WiFi antenna => Nonconductive anodizing.
  • Conductive anodizing on UMTS antenna => Either conductive or nonconductive anodizing.

B. Temporary Fix (Fix it yourself):

  • Bumper
  • Case
  • Non-conductive Tape
C. Example (It works for me): :rolleyes::D

That's clever, showing there is a problem, at least with some phones. I was getting suspicious when people said using the bumper fixed the problem, that made it a bigger deal than your hand just absorbing some of the signal just by obstruction. If a strip of cellophane tape solves the problem then either some phones are defective or the antenna system was ill-concieved.
 
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