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Re: giffgaff 5G SIM
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Chris
Mar 21, 2021, 6:47:40 AM3/21/21
to
Anthony R. Gold <not-fo...@ahjg.co.uk> wrote:
> While in UK (around 50% of each year) we use giffgaff with goodybags, and
> while abroad we keep our UK numbers alive with small money balances and
> occasional text messages.
>
> I now see where giffgaff says that we would need new SIMs from them to
> access their 5G service.
>
> Why? Our phones also use Google Fi accounts and are able to use T-Mobile's
> 5G service in the USA with no new SIMs.
Are you sure it's real 5G? At least one network in the US has been caught
labelling LTE as "5G" when it's actually 4G.
Unless your phones are 5G capable (very few are) then there's no need.
> Also - is there any downside to switching our giffgaff numbers over to their
> "5G SIM"? Is anything lost by doing that?
>
> While in UK (around 50% of each year) we use giffgaff with goodybags, and
> while abroad we keep our UK numbers alive with small money balances and
> occasional text messages.
>
> I now see where giffgaff says that we would need new SIMs from them to
> access their 5G service.
>
> Why? Our phones also use Google Fi accounts and are able to use T-Mobile's
> 5G service in the USA with no new SIMs.
Are you sure it's real 5G? At least one network in the US has been caught
labelling LTE as "5G" when it's actually 4G.
Unless your phones are 5G capable (very few are) then there's no need.
> Also - is there any downside to switching our giffgaff numbers over to their
> "5G SIM"? Is anything lost by doing that?
>
David Wade
Mar 22, 2021, 5:18:51 AM3/22/21
to
On 21/03/2021 15:43, Anthony R. Gold wrote:
>
> https://www.theverge.com/2019/4/22/18511741/att-5g-e-marketing-ploy-disaster-misleading-claims-lawsuit-confusion
> negotiate 5G connections or know of any downside to making that change?
>
> Does O2 also require that SIM change from subscribers to their main brand?
>
yes, also vodafone
https://www.o2.co.uk/help/network-coverage-and-international/5G-setup
. 5G sim
You’ll need to swap to a 5G sim. The good news is they’re the same size
and shape as our other sims, so they’ll simply pop into your new 5G phone.
> On Sun, 21 Mar 2021 10:47:37 -0000 (UTC), Chris <ithi...@gmail.com> wrote:
>
>> Anthony R. Gold <not-fo...@ahjg.co.uk> wrote:
>>> While in UK (around 50% of each year) we use giffgaff with goodybags, and
>>> while abroad we keep our UK numbers alive with small money balances and
>>> occasional text messages.
>>>
>>> I now see where giffgaff says that we would need new SIMs from them to
>>> access their 5G service.
>>>
>>> Why? Our phones also use Google Fi accounts and are able to use T-Mobile's
>>> 5G service in the USA with no new SIMs.
>>
>> Are you sure it's real 5G? At least one network in the US has been caught
>> labelling LTE as "5G" when it's actually 4G.
>
> That was ATT who invented a new 5G E (5G Evolution").
>
>> Anthony R. Gold <not-fo...@ahjg.co.uk> wrote:
>>> While in UK (around 50% of each year) we use giffgaff with goodybags, and
>>> while abroad we keep our UK numbers alive with small money balances and
>>> occasional text messages.
>>>
>>> I now see where giffgaff says that we would need new SIMs from them to
>>> access their 5G service.
>>>
>>> Why? Our phones also use Google Fi accounts and are able to use T-Mobile's
>>> 5G service in the USA with no new SIMs.
>>
>> Are you sure it's real 5G? At least one network in the US has been caught
>> labelling LTE as "5G" when it's actually 4G.
>
>
> https://www.theverge.com/2019/4/22/18511741/att-5g-e-marketing-ploy-disaster-misleading-claims-lawsuit-confusion
>
>> Unless your phones are 5G capable (very few are) then there's no need.
>
> My Pixel 4a (5G) is capable.
>> Unless your phones are 5G capable (very few are) then there's no need.
>
>
>>> Also - is there any downside to switching our giffgaff numbers over to their
>>> "5G SIM"? Is anything lost by doing that?
>
> Again, does anyone have any clue why giffgaff might require a SIM change to
>>> Also - is there any downside to switching our giffgaff numbers over to their
>>> "5G SIM"? Is anything lost by doing that?
>
> negotiate 5G connections or know of any downside to making that change?
>
> Does O2 also require that SIM change from subscribers to their main brand?
>
yes, also vodafone
https://www.o2.co.uk/help/network-coverage-and-international/5G-setup
. 5G sim
You’ll need to swap to a 5G sim. The good news is they’re the same size
and shape as our other sims, so they’ll simply pop into your new 5G phone.
Tweed
Mar 22, 2021, 6:11:27 AM3/22/21
to
seen screenshots of it speed testing at 5G at Newcastle railway station.
Chris in Makati
Mar 25, 2021, 10:10:20 AM3/25/21
to
On Mon, 22 Mar 2021 09:18:48 +0000, David Wade <g4...@dave.invalid>
wrote:
>. 5G sim
>You’ll need to swap to a 5G sim. The good news is they’re the same size
>and shape as our other sims, so they’ll simply pop into your new 5G phone.
What exactly is the difference between a "5G SIM" and any other type
of SIM?
I remember when 4G/LTE first became available I continued using a very
old SIM for a long time and was able to obtain 4G data speeds.
wrote:
>. 5G sim
>You’ll need to swap to a 5G sim. The good news is they’re the same size
>and shape as our other sims, so they’ll simply pop into your new 5G phone.
of SIM?
I remember when 4G/LTE first became available I continued using a very
old SIM for a long time and was able to obtain 4G data speeds.
notya...@gmail.com
Mar 27, 2021, 7:30:14 AM3/27/21
to
One did need 3G and 4G SIM's when upgrading to UMTS or LTE phones.
Tweed
Mar 27, 2021, 7:46:59 AM3/27/21
to
that a sim swap in not required, but O2 state the opposite. Certainly my
son’s experience with Vodafone shows that a swap with them is not needed to
get 5G on a 5G capable handset.
notya...@gmail.com
Mar 27, 2021, 4:10:53 PM3/27/21
to
Brian Gregory
Apr 21, 2021, 7:22:30 PM4/21/21
to
Nobody seems to have a definite answer.
<https://www.quora.com/Will-existing-4G-SIM-cards-work-with-5G-or-do-they-need-to-be-replaced>
--
Brian Gregory (in England).
<https://www.quora.com/Will-existing-4G-SIM-cards-work-with-5G-or-do-they-need-to-be-replaced>
--
Brian Gregory (in England).
Tweed
Apr 22, 2021, 2:22:38 AM4/22/21
to
Brian Gregory <void-invalid...@email.invalid> wrote:
> Nobody seems to have a definite answer.
> <https://www.quora.com/Will-existing-4G-SIM-cards-work-with-5G-or-do-they-need-to-be-replaced>
>
This response on your link seems the most likely:
> Nobody seems to have a definite answer.
> <https://www.quora.com/Will-existing-4G-SIM-cards-work-with-5G-or-do-they-need-to-be-replaced>
>
Although 5G adoption is spreading across the globe however Mobile operators
have consistently provided poor speeds especially in the growing economic
regions by using sub standard hardware to reduce TCO. In the post 3G era
subscribers were using 2G SIM cards which were finally replaced when 4G was
launched with a USIM. As per GSMA standards 5g can be adopted on Release 13
onwards to avoid compromising the security breach and for lower latency. We
will have to wait and see what strategies are used by different Mobile
Operators across the globe to give better user experience. As per GSMA
recommendation SIM needs to be 5G compliant as IMSI encryption is one major
change which has been observed over previous generations in SIM
authentication. A new 5G SIM card will be able to do so however on old 4G
SIM cards this feature was not present. Therefore it is recommended that
the SIM cards need to be upgraded to the latest version to avoid any
security breach of the user and to improve user experience.
So, 5G supports IMSI encryption, 4G SIMs do not. 5G IMSI encryption is
optional as far as the operator is concerned. At the moment it looks like
O2 and its virtual operators are enforcing a sim swap. Vodafone and EE not.
Don’t know about Three.
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