When was your iPhone 4 manufactured?

[Chimera]

16gb black - week 24
Reception problem - yes
Yellow problem - No

Bit odd. Only me and one other poster who, judging from his nickname, lives within 10 miles of me, has - week 24.

Week 24 here too - must be UK/Non US people in our batch.

32GB
No yellow spots
Reception dip reproducible

 

[SBik2]

Week 25.

Reception issue - Yep.
Screen Yellow- Nope.

 

[realeric]

25th for mine.
Reception Issue: Yes(Weak signal area), No(Strong signal area)
Screen Yellow: No
Other issues: None.

 

[compg318]

25th
Reception: Yes
Yellow: no

 

[lidomkj]

Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A293 Safari/6531.22.7)

24. No issues at all!

 

[damov2]

16gb
Week 24
Reception issues:no
Yellow issues: did but virtually gone now!

 

[JBeSketchin]

As I already stated im WK 25 with reception dropping due to touching the left hand side band. But I feel that its worth mentioning that I havent really observed this stopping my data. I never lose 3G completely. No matter how long my hand is bridging the antennas it stays at 1 bar of 3G and thats at my house which has ALWAYS had poor and questionable service (in the sense that one minute you have full 3G, the next it can change to 1 bar of edge or blue dot)
But as soon as I release my fingers or set it down it jumps back to full 3G bars.

 

[eXoBrute]

Week 26 for me, That means it like was just made correct?

And i have no issues with yellowing or service

 

[Jayling]

16Gb - week 25

Reception problem - Yes
(Northeast Ohio)

Yellow - No

 

[elistull]

32Gb - Black - week 25

Reception issue: Yes

Screen yellow: No

 

[AngelGuy7]

Week 23

Model: 32GB Black
Reception Issue: Yes
Yellow Screen: No

 

[Dlanod]

23 - no issues

 

[theonekcrow]

My 16 GB Black is fresh out of the oven!!!!

Week 26

Add: Yellow Screen: No
Reception issues: No

 

[Bloake]

25th week, flawless!

 

[Built]

Results are all over the map.

JUST tried AGAIN to reproduce the signal drop...No can do. I'm unable to replicate that on my i4.

So...Week 25...NO issues for me...

 

[njalijoe]

I think I have the oldest one here
Factory: 88
Week:19

Reception Issue: NO
Yellow Screen: NO

 

[Bloake]

Factory Code: 85 (First 2 digits)
Year: 0 (As in 2010)
Week: 25

That’s as far as I know about iPhone serial numbers.

 

[Bloake]

Results are all over the map.

JUST tried AGAIN to reproduce the signal drop...No can do. I'm unable to replicate that on my i4.

So...Week 25...NO issues for me...

See if the factory code has any relevance. It's the first 2 digits... Maybe there was a factory full of faulty parts

 

[tritonj]

week 24, no issues so far

factory code 88

 

[eXoBrute]

My factory code is 87 and i have no issues, Week 26 btw

 

[dhartung02]

32gb iPhone 4 - week 25

Reception problem = Yes
Yellowing = No

 

[Derald Lary]

25
No
No

 

[nfl46]

25th week for me. 16GB

No and No

 

[bigtallguy]

32GB week 25.

Reception issue - Yes
Yellow Spots/Lines - No

 

[synagence]

32GB Black - 23rd Week (Factory 86)

Reception Issue - No (O2 UK)

Yellow Screen Issue - No