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[UK] iPhone 7 Plus Won't Connect To 4G ;(

K

KooL BeAnZ

macrumors 6502
Original poster
Apr 4, 2012
398
563
[Update: This issue appears to have been fixed in iOS 10.1 Beta 2 as carrier settings have been updated to Three 26.0. My iPhone 7 Plus now appears to be defaulting back to 4G when it should, as was expected and experienced on the 6S Plus - however some people still reporting issues even after this update]

Ok,

So I had all the past iPhones and ever since I was able to get 4G, my phone would always pick it up at least while I was at home, anywhere in the house or while at work, wherever I was in the building.

My last phone was a 6S Plus which I had since launch and likewise, no issues whatsoever.

My new iPhone 7 Plus however, I have only for the briestfest of moments seen it on 4G. The rest of the time, it is solidly stuck on 3G.

Things I have tried:

Go to settings and then "about" and waited a good 5 minutes and I can confirm I have the latest carrier settings.

I have reset network settings, phone has rebooted and still on 3G.

I have confirmed 4G is enabled in the settings under carrier for voice and data. I have also switched it to just data and waited - still only 3G.

I have restored the phone and re-loaded my backup - still on 3G.

I have restored the phone and set it up as blank/new phone - still on 3G.

I have this morning gone to the carrier and swapped out a sim for another - still on 3G.

*Now none of these worked*

Anyone else with a 7/Plus having issues?

My network here in the U.K. is "3".

Either something weird is happening with the new phones or I guess my phone needs changing, which is weird because if its connecting to data and also to 3G - why wouldn't 4G work

Any ideas?
 
Last edited:
KooL BeAnZ said:
Ok,

So I had all the past iPhones and ever since I was able to get 4G, my phone would always pick it up at least while I was at home, anywhere in the house or while at work, wherever I was in the building.

My last phone was a 6S Plus which I had since launch and likewise, no issues whatsoever.

My new iPhone 7 Plus however, I have only for the briestfest of moments seen it on 4G. The rest of the time, it is solidly stuck on 3G.

Things I have tried:

Go to settings and then "about" and waited a good 5 minutes and I can confirm I have the latest carrier settings.

I have reset network settings, phone has rebooted and still on 3G.

I have confirmed 4G is enabled in the settings under carrier for voice and data. I have also switched it to just data and waited - still only 3G.

I have restored the phone and re-loaded my backup - still on 3G.

I have restored the phone and set it up as blank/new phone - still on 3G.

I have this morning gone to the carrier and swapped out a sim for another - still on 3G.

*Now none of these worked*

Anyone else with a 7/Plus having issues?

My network here in the U.K. is "3".

Either something weird is happening with the new phones or I guess my phone needs changing, which is weird because if its connecting to data and also to 3G - why wouldn't 4G work

Any ideas?
Click to expand...


are you usually the SIM that came with your new phone? do put the old SIM card in. also make sure 4G is turned on under Cellular Data Options
 
S3rv3d said:
Yeah, I think I've got the same. My girlfriend is sitting here with 4G in here iPhone 6 and I've got 3G on my 7+. Hadn't actually noticed it until reading this. Both 3 UK.
Click to expand...


Hmm, could be a carrier issue then with 3...
[doublepost=1474221165][/doublepost]
acctman said:
are you usually the SIM that came with your new phone? do put the old SIM card in. also make sure 4G is turned on under Cellular Data Options
Click to expand...


Same sim as well as new one they gave me too.
 
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Do you know if the 4G in your area is running on the 800Mhz band?

On the 3 UK network 3G has higher network priority than 4G 800, maybe the iphone 7 has better 3G reception than the 6S. 4G800 only appears as a last resort.
 
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Reactions: mattysmith118 and t0mat0
See if there's a carrier update for your phone. I'm on Three and got one recently.

(You're better off Googling how to do so.)
 
iOZZY said:
Do you know if the 4G in your area is running on the 800Mhz band?

On the 3 UK network 3G has higher network priority than 4G 800, maybe the iphone 7 has better 3G reception than the 6S. 4G800 only appears as a last resort.
Click to expand...


Good shout but where I work I get full five circles of 4G - today I got 4-5 circles 3G all day. Never once switched to 4G.

Also, on my 6S - I was easily on 10-15 Mb download but now in the 7+ and on 3G it's just 1-3 Mb....
[doublepost=1474232695][/doublepost]
chrishawes said:
See if there's a carrier update for your phone. I'm on Three and got one recently.

(You're better off Googling how to do so.)
Click to expand...


Already stated that I've tried carrier update and that I've confirmed im on the latest (Three 25.1)

Thanks anyway
 
Can confirm I've got the same issue here with a 7+ and Three UK!

Hopefully either an iOS or Carrier update fixes it!
 
I've just done a bit of investigation and after doing a hard reset (Power + Vol Down) it initially connected up to 3G but switched to 4G after about 30 seconds
 
jas07 said:
Can confirm I've got the same issue here with a 7+ and Three UK!

Hopefully either an iOS or Carrier update fixes it!
Click to expand...

Ok, so it's not just me ✌️️
[doublepost=1474263020][/doublepost]
jas07 said:
I've just done a bit of investigation and after doing a hard reset (Power + Vol Down) it initially connected up to 3G but switched to 4G after about 30 seconds
Click to expand...

True, I can get it to connect by doing this but then whether it's a few minutes or so, it always reverts back to, and stays on, 3G
 
jas07 said:
I've just done a bit of investigation and after doing a hard reset (Power + Vol Down) it initially connected up to 3G but switched to 4G after about 30 seconds
Click to expand...

Tried this again this morning and so far, still on 4G
 
Carrier issue I reckon. Just contact them to ensure 4g is activated for the phone as may be because you changed phone and on their system has it only locked into your previous phone. Should not cost you anything at all except the call/online chat time.
 
Let us know what they say, I got on 4G yesterday but now stuck on 3G
 
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I had same issue, reset network settings and since then (about 3hours ago) been rock steady on 4g
 
jas07 said:
I'm back stuck on 3G again this morning! Have contacted Three via twitter.
Click to expand...


Just looked now after going on break and same, back to 3G when the 6S+ would never switch from 4G !!!
[doublepost=1474293572][/doublepost]
handsomelife said:
I had the same issue, power/volume down reset appears to have resolved it.
Click to expand...


Was only a temporary solution for me
[doublepost=1474293627][/doublepost]
UKapple73 said:
I had same issue, reset network settings and since then (about 3hours ago) been rock steady on 4g
Click to expand...

Yeah, lasts from a few minutes to a few hours but then stuck on 3G again until I hard reset or reset network settings, even sometimes then, doesn't reconnect to 4G when it should!!
 
Exactly the same experience here, reported to Three UK and they're looking into it and calling me back.
 
Same issue here, I got my new 7 on Friday but only noticed today.

Tried the power button with down volume, got 4G for now, lets see if it stays....
 
raymanster said:
Same issue here, I got my new 7 on Friday but only noticed today.

Tried the power button with down volume, got 4G for now, lets see if it stays....
Click to expand...
+1 here. Works for a bit. Then gone. Sat next to the wife ip6 and that's on 4G fine.
 
Yep, same issue.

I haven't contacted Three yet but mine loves to stay on 3G and I have to force it to use 4G by toggling 4G on and off. Doing that also sometimes kills my cellular connection altogether seemingly as although it'll show I've got maybe 4 bars of 3G, there will be no connection. Hope it's fixed soon.
 
Just posted about this in the Three preorders thread. I'm having the exact same issue but using the iPhone 7 not the plus model.

Three advised me to refresh network settings, remove the SIM card, toggle 'Data Only' under enable 4G and not to have it set as 'Voice & Data'. So far absolutely nothing has worked.

They're calling me back on Wednesday with an update apparently.
 
Laidlow34819 said:
Just posted about this in the Three preorders thread. I'm having the exact same issue but using the iPhone 7 not the plus model.

Three advised me to refresh network settings, remove the SIM card, toggle 'Data Only' under enable 4G and not to have it set as 'Voice & Data'. So far absolutely nothing has worked.

They're calling me back on Wednesday with an update apparently.
Click to expand...


Still no luck with me either.

Starting to think a carrier update will be needed to fix.

I've literally tried every single thing you could. Nothing works ;(
 
KooL BeAnZ said:
Still no luck with me either.

Starting to think a carrier update will be needed to fix.

I've literally tried every single thing you could. Nothing works ;(
Click to expand...

Hopefully it'll happen soon, 3G feels so slow compared to 4G. Guess I should be grateful at least I'm getting some service.
 
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