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When was your iPhone 4 manufactured?

Factory: 88 (Shenzhen, China)

Production week: 21 (May)

Reception: Bars go down when corner is gripped, but cannot get a call to drop no matter how I try

Yellow: No

Proximity: No

Got it from ATT, I wonder if the earlier weeks are from ATT?
 
22

Reception: bars go down but i can still make calls with no problem
Yello screen: no
anything else: no

Bought it from Apple Retail Store in the UK.
 
JBeSketchin said:
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.
Click to expand...

Same thing here. Mine is also from week 25 and although my bars drop when I hold the left side band, I have not dropped a call or experienced any change in reception. I noticed that data seems a little slow when the bars are down, but that could just be from the 3G network being a little more bogged down than before.

daihard said:
Wow, week 25 is like LAST WEEK (June 13 - 19). Some of you guys have iPhones that are right off the assembly line. Nice!
Click to expand...

I know! Pretty cool!!
 
16G / 25th Week

No discoloration

Occasional reception issues:
1. 3G doesn't seem affected MUCH, but some. I have to work at at it get it to lose bars.​
2. Wireless definitely affected on mine if I hold it in my left hand.​
3. Mine will lose all bars temporarily just laying on my desk and then pop back up later. Nothing near it and I'm not touching it. Also, will sometimes switch for a few minutes to Edge then back to 3G.​

My old phone had none of the above issues.​
 
Had a week 22, had weird screen flicker but no yellow.

Swapped it out for a week 25, seems like the bottom of the screen every so slightly yellow (with the right corner being the most notable.) I don't know if i should go back seeing as it is slight discoloration and they may not wan't to do anything since i just swapped it out. Hopefully it goes away but i doubt it seeing as almost every apple product (with an LCD) has a slight yellow discoloration at the bottom of the screen.
 
25th week yellow NO but bad reception issues and proximty sensor bad also and wierd noses from speaker phone when I look at pics
 
Hmm, I've got an earlier one I guess!

16G Black
Week 21
Factory 87
Signal: Yes if I intentionally force it
Yellow: Nope, nada, Zip!
Battery: Yes it has one...lol Seems fine.

Details: Likes long walks on the beach in moonlight, cuddling in front of a roaring fire...

:D
 
week 23: no reception issue, or yellowing

I tried numerous times to get the reception to drop and just couldnt replicate it..
 
Factory-81
Week-25

Reception issues-yes
Yellow screen-no

I will completely loose cell data by touching the bottom left corner. Tested through speedtest.net app.
 
16G Week 25

Reception Problem-Yes
Screen Yellowing-No

My wife has a 16G Week 25 with the same issues as mine.
 
32G Week 25

Reception Problem-Yes
Screen Yellowing-No
Proximity Sensor issue - Yes
 
Model: Black 32GB
Factory: 88
Week: 24
Reception Issue: Yes (goes down to 2 bars)
Screen Yellow: had the dots but went away so far..
 
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