iPhone X reception issues

Vega007

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When I first bought my X, I bought it through T-Mobile which is the 1901 version. I noticed right away that I had reception issues in my office that I never had before with any other phone I used prior. I did some digging and found out that the 1901 and 1865 have different modems, and the one in the 1865 was simply better. So I sent the 1901 back and went with the unlocked 1865 version from Apple. As soon as I got it up and running, just like that, reception issues vanished. I highly recommend getting the 1865 version over the 1901 if you are able to.
 

msm0511

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I've noticed I get weaker signal with my 1901 T-Mo iPhones than I have with Android phones on T-Mo. I've never had an 1865 iPhone before so not sure if it would be better.
 

doogald

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Just curious: do the 1901 and 1865 models have the same Intel/Qualcomm modem difference as the iPhone 7 models from 2016? (I bought a SIM-free 1865 X which I use on Verizon; obviously must be Qualcomm for CDMA.)
 

msm0511

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Just curious: do the 1901 and 1865 models have the same Intel/Qualcomm modem difference as the iPhone 7 models from 2016? (I bought a SIM-free 1865 X which I use on Verizon; obviously must be Qualcomm for CDMA.)

I know the Qualcomm is a newer version, but I'm not sure about the Intel.
 

doogald

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I know the Qualcomm is a newer version, but I'm not sure about the Intel.

What I also meant was is there still an alleged reception quality difference between the Intel and Qualcomm modems? (I have since verified that the 1865 is Qualcomm and the 1901 is Intel.) It'd be interesting for somebody with an 1865 to pop a T-Mobile or AT&T SIM in and see if the phone had better reception in places with weak reception.
 

msm0511

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What I also meant was is there still an alleged reception quality difference between the Intel and Qualcomm modems? (I have since verified that the 1865 is Qualcomm and the 1901 is Intel.) It'd be interesting for somebody with an 1865 to pop a T-Mobile or AT&T SIM in and see if the phone had better reception in places with weak reception.
@Vega007 mentioned that his issues went away when he returned his T-Mo bought 1901 model and got the Sim free 1865.
 

Vega007

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Yes that is correct. I was using the 1901 and people could not hear me from my office, calls was getting dropped, etc. This made me have to leave my office and walk outside to talk to someone, something I have never had to do. I sent it back, got the 1865, and with the same sim card popped it in and the problem went away.
 

mogelijk

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Just curious: do the 1901 and 1865 models have the same Intel/Qualcomm modem difference as the iPhone 7 models from 2016? (I bought a SIM-free 1865 X which I use on Verizon; obviously must be Qualcomm for CDMA.)

The 1901 does use Intel, the 1865 uses Qualcomm. They are improved versions of the modems over what was in the iPhone 7, yet the Qualcomm modems are still limited, to try and keep performance/features the same between the Intel and Qualcomm modems. Testing also appears to show the Qualcomm is still faster than the Intel, though the gap is narrowed on the iPhone X.
 

ssbtech

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I have noticed fewer bars of signal in places where my BB10 device would show full strength. Not sure it's impacting speed at all though.
 

Vega007

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I have noticed fewer bars of signal in places where my BB10 device would show full strength. Not sure it's impacting speed at all though.

Speed should not be impacted at all. Where the 1865 gets its benefit from is when you are using your phone in an area with weak signal.
 

Almeuit

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I have noticed fewer bars of signal in places where my BB10 device would show full strength. Not sure it's impacting speed at all though.

Bars are bad to go by since all phones calculate "bars" differently. Only the actual -dBm signal shows the true strength.
 

ItnStln

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I have reception issues on my iPhone X, but I also did on my Intel powered iPhone 7. My Qualcomm powered iPhone 7 Plus is fine.
 

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