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iPhone XS iPhone Xs and iPhone Xs Max Antenna Issues Build Date

Phone 1:
iPhone: Xs Max
Color: Silver
Storage: 256 GB
Country: UK
Carrier: Vodafone
Factory: Zhenzhou
Build Year: 2nd half year, 2018
Build Week: 11th week
Build Date: 9/9-9/15
iOS 12.0

Problems: Chargegate, 5ghz Wi-fi failure, BT issues, crashing, camera had major halos from all light sources. Replaced under warranty.


Replacement phone:
iPhone: Xs Max
Color: Silver
Storage: 256 GB
Country: UK
Carrier: Vodafone
Factory: Zhenzhou
Build Year: 2nd half year, 2018
Build Week: 11th week
Build Date: 9/9-9/15
iOS 12.0.1

Problems: 5ghz Wi-Fi still poor with 12.0.1. LTE signal now poor. Other issues resolved.
 
Last edited:
Lilydgg said:
xs
64gb
ATT
F-zengzhou
X
C 9/2-9/8


No noted issues yet, have had it about a week now

ETA, the wife also has a XS, same location and build date also with no issues.
Click to expand...

Same build date/location for me only difference is a 256GB Max (also on AT&T).

No LTE issues with mine.
 
XS Max on iOS 12.0.1
512 GB
Gold
AT&T through Apple.com IUP
F2LXD... SERIAL
ZHENGZHOU
2nd half of 2018
11TH week 9/9 - 9/15

LTE signal (rsrp0 is typically around -115) is poor, but the call quality is, nevertheless, good everywhere: I have not dropped out of LTE or dropped a call. LTE speed is approximately 20% faster than my X in most of my usual locations except for my office where it's about the same (abysmal for any phone on AT&T, including my Note 8: others in my office have poor LTE speed with just about any carrier and any phone). LTE in some locations is significantly faster than my X (e.g., 98 mbs down vs 55 mbs down). Last night, I was getting a shocking (for me) 166 mbs down at a friend's house where I would typically get around 25 mbs on my X (I was definitely on LTE and not on his wifi).

12.01 fixed the charging bug for me.

Bluetooth has been reliable connected to my car audio, AirPods, and Apple Watch Series 4

Wifi has been reliable and fast. After resetting Network Settings, my Max reliably connects to 5ghz. I have an Eero Pro system at home and AT&T Uverse, and my wifi speeds are consistently 50 -85 mbs (my maximum speed from Uverse is 100 mbs). I also have an employer provided AT&T hotspot, and the XS Max connects reliably, maintains the connection, and the speed is typically improved over my X.
 
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iPhone: XS Max
Color: Space Gray
Storage: 512 GB
Country: USA
Carrier: AT&T
Factory: Zhenzhou
Build Year: 2nd half year, 2018
Build Week: 12th week
Build Date: 9/16-9/23
iOS 12.0.1

LTE was unreliable and frequently dropped calls easily handled in the same locations by my 8+. With good signals, I never had any problems with WiFi or LTE speeds. Once phone acquired 3G/4G, it was very resistant to go back to LTE even when a strong LTE signal was present. I frequently tested the XSM and 8+ side-by-side for comparison. There was NO comparison between them when it came to signal reception.
 
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iPhone: XS Max
Color: Gold
Storage: 256 GB
Country: USA
Carrier: Verizon
Factory: Zhenzhou
Build Year: 2nd half year, 2018
Build Week: 12th week
Build Date: 9/16-9/22

Ordered from Apple.com on 9/22, delivered 9/27

LTE speeds sometimes fine, other times poor.
Ditto for wifi.

Returned. Might buy again in a few weeks or whenever these issues are resolved.

To the OP: Have you been keeping track of the responses? Are there any patterns emerging?
 
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roncron said:

iPhone: XS Max
Color: Gold
Storage: 256 GB
Country: USA
Carrier: Verizon
Factory: Zhenzhou
Build Year: 2nd half year, 2018
Build Week: 12th week
Build Date: 9/16-9/22

Ordered from Apple.com on 9/22, delivered 9/27

LTE speeds sometimes fine, other times poor.
Ditto for wifi.

Returned. Might buy again in a few weeks or whenever these issues are resolved.

To the OP: Have you been keeping track of the responses? Are there any patterns emerging?
Click to expand...
No pattern at all. I was hoping there'd be one. Early builds, one factory but nothing. It sucks.
 
Xs Max
Gold
64G
Apple.com (IUP)
AT&T
FXD

Haven’t really noticed degraded LTE. Got 2 bars on my X and am still getting 2 bars. I use wifi calling whenever possible.

Speaking of wifi, that has been my issue. Had the 5ghz issue. It is better after 12.0.1, but still worse than the X it replaced.

No other issues that I’m aware of.
 
So far my second iPhone Xs is functioning way better than my original. No yellow tint on screen. WiFi and data speeds are the same as my Pixel 2. Maybe 5 mbps slower on average. Signal strength is about the same and I don’t have the issue of the signal fluctuating like the old.
So I have no idea. I was hoping to see a pattern in build date and factory but nothing.
 
FX8
Xs Max 256 GB Space Gray
Zhengzhou
8/19 - 8/25
I only experienced the charging issue but has since been resolved with 12.0.1. LTE speeds are good and no network issues so far.
 
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Max
256gb
SG
Verizon
F Zhebgzhou
X 2nd half of 2018
C 9/2-9/8

Screen over all really good
No bluetooth issues
Speakers good
WiFi was preferring 2.4 (update fix)
LTE was bad but now better with beta


I have included picture of both my Verizon X and Verizon Max. Both where sitting beside each other. The Max is now on Beta release and since the last update the LTE signal has been much better.

X is on the right. Max on the left.
 

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I work for Apple Authorized Retailer in Czech Republic,Europe and today i looked into database about all colours of XS MAX 256 GB and in total there was only 1 complaint and money given back because problem: cannot connect to Wifi AP. but nothing else. So maybe USA really got a big bad batch

+
So i looked how much did we sell at our branch office:
118+175+166 = 459 times iphone 256GB sold and one customer had an issue i have written
and
76+122+53 =251 times iphone 64GB variant - no issues

so i think one issue from 710 iphones means i can buy one 256GB too :)
 
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Xs
64 GB
Silver
Verizon

G0 (Shanghai)
Build date 8/26 - 9/01

Purchased yesterday, had a dead battery out of the box that needed to be charged. Display is dim compared to my 8, but no other issues thus far, but early to tell.
 
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iPhone: Xs
Color: Space Grey
Storage: 64GB
Country: USA
Carrier: T-Mobile
Serial: F..XC.....
Factory: Zhenzhou
Build Year: 2nd half year in 2018
Build Week: 10th Week
Build Date: 9/2-/9/8

LTE: Good reception and fast speed. Improved over iPhone 7 Plus.
Wi-Fi: Poor reception and so so speed with 12.0. Good reception and good speed with 12.0.1 (not quite as good as 7 Plus).
 
Build dates have no effect. That's like when people wait for the other releases for production issue.
 
Just got mine yesterday from Apple Store as they had just got stock in.

XS Max
Space Gray
256GB
Zhengzhou
2nd Half 2018
9/30 to 10/6

So far no issues whatsoever, but we are talking one full day!
 
Getting my zhenzhou 2nd half week 12 build today.FXF

Let see how it goes. :fingers crossed:
 
Got my max yesterday and haven’t noticed anything different from my 7+.
Real test is later on my commute up to work.
 
iPhone: Xs
Color: Silver
Storage: 64GB
Country: USA
Carrier: AT&T
Serial: CX9
Factory: Shenzhen
Build Year: 2nd half year, 2018
Build Week: 9th Week
Build Date: 8/26-9/01

Lte is terrible. Have a work phone that is a at&t iPhone 7, service is way better on my work phone. Have contacted apple through support regarding crappy lte service. No fixes available or reasoning why it’s so ******.
 
iPhone: Xs
Color: Space Grey
Storage: 64GB
Country: USA
Carrier: T-Mobile
Serial: C39XD
Factory: Shenzhen
Build Year: 2nd half year, 2018
Build Week: 11th week
Build Date: 9/9 - 9/15

No issues
 
iPhone: Xs
Color: Silver
Storage: 256GB
Country: Spain
Carrier: Vodafone
Serial: MQAN2
Factory: China, Zhengzhou - Foxcon
Build Year: 2nd half year, 2018
Build Week: 11th week
Build Date: 9/30 to 10/6

Poor LTE (looking for signal every minute). Wi-Fi same speed as on my past X.. return my money until apple admits what is the problem. Happy with my old X at this moment, lets see what happens. Maybe we can skip this gen with no big changes, maybe the big and worst change, the poor conectivity.
 
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