Submitted by beigelightning t3_yf09bj in iphone
KrzysisAverted t1_iu0yoyw wrote
From a technical perspective, eSIM v.s. physical SIM shouldn't have any real impact on service quality.
"SIM" stands for "Subscriber Identity Module". It's just something that stores an identity (a fancy serial number).
It's not an antenna. It doesn't do any "connecting" or "receiving". The phone asks the SIM (whether physical or digital) for its fancy serial number and then passes that number along to cellular towers when establishing a connection with them.
Any difference in service quality would be the result of the phone and its antennas *or* the network and its cellular towers, not how the SIM part is implemented.
steven-aziz t1_iu25edp wrote
Great job explaining!
Apple Technical Expert
aquablaze69 t1_iu17p0b wrote
This should be higher up. Can’t upvote enough.
MONGSTRADAMUS t1_iu1b569 wrote
In theory that should be the case but in practice that’s not the case I have had issues with my iPhone 13 Pro on T-Mobile with Esim. All of a sudden it just turns off all connections including Wi-Fi only a reboot can fix it.
I brought it to Apple to see if it was my device they replaced everything but screen and camera module , replacement included new e sim chip , and it still happens occasionally.
CR7KRUL t1_iu2f1u9 wrote
Yeah that’s not eSim issue and the second part of your post where they replaced literally whole phone except for screen and cameras? Yeaaaahhhh that never happened lmao
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