iPhone Users Reporting Mixed Brightness on Handsets

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Date: Tuesday, July 17th, 2007, 07:53
Category: iPhone

iphone.jpg
The grass may be always greener on the other side, but iPhone users may have a genuine complaint in this situation.
According to the guys over at iPhone Atlas, readers are reporting that some iPhone screens are brighter than others when set to the full brightness setting. The dimmer screens also seem to display a grid pattern on the background that appears as a checkered pattern of horizontal and vertical lines in all applications (a picture posted on ImageShack presents the difference).
The problem seems to stem from two distinct revisions of iPhone LCD panels being used, a 5 series and a 7 series. This can be tested via the following instructions:
-Put your iPhone in field test mode by accessing the Phone application, tapping Keypad, then entering *3001#12345#* and pressing Call.
-Tap Versions
-Inspect the entry next to LCD Panel ID
-Users have reported that iPhones with LCD Panel IDs that begin with 7 exhibit this problem, while those with IDs that begin with 5 do not — though we’ve seen reports from users with 7-series screens that do not exhibit the issue.
The article also suggests that when checking whether or not your iPhone has this issue, be sure to deactivate the Auto Brightness setting in your Settings menu, then reset the iPhone by holding the Sleep/Wake button and the Home button for at least 10 seconds. The reading may be affected by ambient light and this is the best way to remove that factor.
Apple has yet to comment on this issue.
If you’ve seen this or anything similar with your iPhone, let us know over in the forums.


iphone.jpg
The grass may be always greener on the other side, but iPhone users may have a genuine complaint in this situation.
According to the guys over at iPhone Atlas, readers are reporting that some iPhone screens are brighter than others when set to the full brightness setting. The dimmer screens also seem to display a grid pattern on the background that appears as a checkered pattern of horizontal and vertical lines in all applications (a picture posted on ImageShack presents the difference).
The problem seems to stem from two distinct revisions of iPhone LCD panels being used, a 5 series and a 7 series. This can be tested via the following instructions:
-Put your iPhone in field test mode by accessing the Phone application, tapping Keypad, then entering *3001#12345#* and pressing Call.
-Tap Versions
-Inspect the entry next to LCD Panel ID
-Users have reported that iPhones with LCD Panel IDs that begin with 7 exhibit this problem, while those with IDs that begin with 5 do not — though we’ve seen reports from users with 7-series screens that do not exhibit the issue.
The article also suggests that when checking whether or not your iPhone has this issue, be sure to deactivate the Auto Brightness setting in your Settings menu, then reset the iPhone by holding the Sleep/Wake button and the Home button for at least 10 seconds. The reading may be affected by ambient light and this is the best way to remove that factor.
Apple has yet to comment on this issue.
If you’ve seen this or anything similar with your iPhone, let us know over in the forums.

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