Phones forum

Question

Problem with phones from other mobile provider?

by ATGiPhone / January 9, 2016 6:55 PM PST

We switched from Verizon to T-Mobile last summer, and the iPhone5s we bought when at Verizon have had reception/signal problems since the switch. We were told by T-Mobile that this is because our phones were optimized for Verizon, and so there would always be signal performance issues.

Is this true? Would this be resolved if we bought new phones through T-Mobile?

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Clarification Request
Sorry
by Pepe7 / January 10, 2016 1:42 PM PST

I only addressed one of your questions.

Yes, new phones from T-Mobile would likely solve your issue, provided it's not due to terrain, a tower being down, or something inside your home affecting your reception. Hypothetically, if something in my other post doesn't apply, you *should* be able to receive T-Mo 4G/LTE service with the Verizon branded 5S (Apple model number A1533, the CDMA/GSM version of the 5S).

Also find out of your account/line is provisioned for data correctly from T-Mo.

All Answers

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Answer
I'm calling that Blue Sharks.
by R. Proffitt Forum moderator / January 10, 2016 9:08 AM PST

In fact I'm getting a 5s sometime in the next week and will be on Tmobile towers. There is no known tweaks from one 5s to another in that regard. As that discussion has been done it's more likely your location is the issue. Or you are trying calls inside a building.

I've subscribed so I'll swing by after my 5s arrives (my office supplies that so that's why I'm getting one.)

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Firmware, carrier 'bloat' might actually matter
by Pepe7 / January 10, 2016 1:37 PM PST

IME it's not enough to know necessarily that these handsets now contain the correct frequency bands for another provider. If there are any data configurations pushed out to that Verizon branded phone that affect the connectivity to a T-MO site/network, it's entirely feasible. Case by case/phone by phone/location by location basis of course. Now if the OP was dealing with a non-branded phone, your point would be 500% accurate.

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It's only a few days away.
by R. Proffitt Forum moderator / January 10, 2016 1:48 PM PST

I'll swing back by with the exact model 5S that will be on Tmobile here sometime this week.

I thought that Apple had never let any 3rd party crap be installed on the phone. No Carrier bloatware inside, not even a carrier LOGO on the outside. No AT&T, Verizon, Sprint, etc Logo's on the iPhones.

Has that changed?

I know that the Android models are often polluted and smelly.

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I did a poor job explaining myself- sorry
by Pepe7 / January 11, 2016 10:40 AM PST

What you said is correct regarding iPhones. Not much 'bloat'(!)

What I didn't specify though, is that basically, all the carriers push out some sort of configuration file, even to iPhones, in order to best communicate with their network(s). (This is separate from the 'bloat' that is seen on non-iphones.) The OP should also try performing a factory reset to see if that helps the situation with accessing T-Mo LTE service more cleanly from the get-go- hopefully avoiding a call to CS (or having to source a T-Mo issued handset). YMMV.

cheers

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I've been setting up such for years now.
by R. Proffitt Forum moderator / January 11, 2016 11:04 AM PST

And, how to put this? When I write or talk about APN ( https://en.wikipedia.org/wiki/Access_Point_Name ) almost all folk come back with it's too technical.

It's a shame this wasn't in the SIM card but that is such an old standard (pre-internet.)

Due to what our office does and more, never did much with the Apple's over the years except help with apps. Now we look again with a possible app and lucky me.

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