Several dual sim questions - OnePlus 8 Pro Questions & Answers

I have the global 2025 on t-mobile and running A11. I'm wondering:
1. How do I know if dual sim is working if it's greyed out?
2. My phone only came with a one card sim tray, can I use a dual card sim tray out of an older model oneplus phone?
3. What about e-sim, is that a possibility?
Thanks

hllywd said:
I have the global 2025 on t-mobile and running A11. I'm wondering:
1. How do I know if dual sim is working if it's greyed out?
2. My phone only came with a one card sim tray, can I use a dual card sim tray out of an older model oneplus phone?
3. What about e-sim, is that a possibility?
Thanks
Click to expand...
Click to collapse
Do you have one or two IMEI's when you dial. *#06#
If you have two then I'd say maybe get a dual SIM tray or go to a shop and test one with another SIM..
Strictly speaking if it has two IMEI's then you should be good.
Not sure about eSIM as we don't tend to use them in the UK.
Personally I'd have thought the hardware would originally have been there, so maybe if you can rebrand to the international version it may begin to work..
---------- Post added at 01:16 AM ---------- Previous post was at 01:14 AM ----------
hllywd said:
I have the global 2025 on t-mobile and running A11. I'm wondering:
1. How do I know if dual sim is working if it's greyed out?
2. My phone only came with a one card sim tray, can I use a dual card sim tray out of an older model oneplus phone?
3. What about e-sim, is that a possibility?
Thanks
Click to expand...
Click to collapse
Do you have one or two IMEI's when you dial. *#06#
If you have two then I'd say maybe get a dual SIM tray or go to a shop and test one with another SIM..
Strictly speaking if it has two IMEI's then you should be good.
Not sure about eSIM as we don't tend to use them in the UK.
Personally I'd have thought the hardware would originally have been there, so maybe if you can rebrand to the international version it may begin to work.

hllywd said:
I have the global 2025 on t-mobile and running A11. I'm wondering:
1. How do I know if dual sim is working if it's greyed out?
2. My phone only came with a one card sim tray, can I use a dual card sim tray out of an older model oneplus phone?
3. What about e-sim, is that a possibility?
Thanks
Click to expand...
Click to collapse
The sim card tray on the 2025 is actually a dual tray, one sim on the front and one on the back. It just looks like a single one but is double sided.

dvaldes409 said:
The sim card tray on the 2025 is actually a dual tray, one sim on the front and one on the back. It just looks like a single one but is double sided.
Click to expand...
Click to collapse
Oh so the same as everyone's else's, Ive not seen a 2025.
Then I suppose if it's got two IMEI's an be two slots, it's a case of testing it..
If it doesnt work then that's a dodgy carrier being an idiot by monopolising the OPs usage, I would avoid that network of that's the case

Related

problem with htc mytouch 4g and simcards

hello
my friend have used phone from t-mobile usa
and the phone can't read any sim except orange israel (don't know about t-mobile sim)
how can it be ?
and how it can be changed that the phone will read all the sims ?
now when i try to put any sim i got message "sim card not found"
This phone requires a certain type of SIM. Different SIMs have different shapes and sizes of contact area for the chip. Compare them and you'll see what I mean.
estallings15 said:
This phone requires a certain type of SIM. Different SIMs have different shapes and sizes of contact area for the chip. Compare them and you'll see what I mean.
Click to expand...
Click to collapse
thanks for your answer
than there is anything to do to solve this ?
from 7 different carriers orange israel will be the only one will work on this phone?
btw . i now see other post you talked about the sim sizes...
in my case the sim size is identical
but i think the chip size is different
the one that work have a larger chip
look at the bottom of the sim and make sure the metal contacts are in the same place as the tmobile sim (look up a picture of tmobile sim on google if you need it) otherwise its possible that the phone is not sim unlocked
from what i see it's not on the same place as t-mobile sim
just orange israel sim is the same as t-mobile
benhouli said:
from what i see it's not on the same place as t-mobile sim
just orange israel sim is the same as t-mobile
Click to expand...
Click to collapse
Take a working SIM to the carrier you want it to work with and see if they will sell you a SIM that matches that type.
estallings15 said:
Take a working SIM to the carrier you want it to work with and see if they will sell you a SIM that matches that type.
Click to expand...
Click to collapse
i don't think they have that type of sim
because they new carriers that sell just the new one
there is no service that can unlock it to work with all the sim cards types ?
or this is done deal ?
It not the carrier type that is the issue. This is the hardware on the mobo. If your SIM reads, but the phone is carrier restricted then it will tell you. Unless you are getting a message to that effect this is H.A.R.D.W.A.R.E.
estallings15 said:
It not the carrier type that is the issue. This is the hardware on the mobo. If your SIM reads, but the phone is carrier restricted then it will tell you. Unless you are getting a message to that effect this is H.A.R.D.W.A.R.E.
Click to expand...
Click to collapse
as u said , i am not getting any requset to put any pin or puk or any unlock code...
but there is one carrier that the phone read his sim card (with the bigger chip on the sim card), but it's just 1 from 7 carriers , because the others have different types of sim cards.(the one with the smallest chip on the sim card)..
what about cellphone labs ? they can't replace the part that read the sim to one that can read all the types of the chips (that on the sim cards)
i am the first that stuck with that problem ?
i really don't want to buy another phone
i like that phone
there is no solution for this hardware problem ?
thanks
Cell phone labs? What? Dude it's part of the motherboard. It's engineered for and soldered to the motherboard. You just need the correct style of SIM card.
There are dual SIM adapters out there that MAY work. You could try that, but it will require cutting of the SIMs to make them fit under the battery.
estallings15 said:
Cell phone labs? What? Dude it's part of the motherboard. It's engineered for and soldered to the motherboard. You just need the correct style of SIM card.
There are dual SIM adapters out there that MAY work. You could try that, but it will require cutting of the SIMs to make them fit under the battery.
Click to expand...
Click to collapse
thanks again
i don't know why they bother to release phone that accept just one type of sim
that most of the phones can accept all the types

How to assign specific number to be always called from 2nd SIM?

Hi Guys,
A new guy here. As per subject, I have a hybrid dual sim version of the S7 Edge.
In the SIM card manager you can select a "preferred" SIM card for voice/text/data calls, or set the phone to "always ask".
As I'm using a 2nd SIM card to call only 3 of my 500+ contacts I'd like to have the SIM 1 as preferred for everything, but somehow assign those 3 numbers to the 2nd SIM, so when I make a call it ALWAYS calls from SIM 2.
Is that possible?
Kind regards
Paul
Anyone..? I'm having same trouble...
Bump..
I've not seen a method to do this on the S5/6/7 Dual sim phones
SJUAE said:
I've not seen a method to do this on the S5/6/7 Dual sim phones
Click to expand...
Click to collapse
Thanks for your reply.. That means this functionality is removed S4 onwards.. [emoji19]

Dual sim option

I wanted to find out following;
Is every S7 Edge Hardware capable of using dual SIM? I was wondering if I buy dual SIM tray for S7 Edge should I just be able to put into SIM cards provided the phone is unlocked and get service on both cards. I know it sounds too far-fetched but I was wondering did they really make separate motherboard for single Sim and dual SIM. I currently have AT&T S7 Edge with g935 U software on it. If something like that is possible I assume there would be some sort of software limitation or something needs to be enabled in the rom itself to make both SIM cards being recognizable , provided of course that phone has connections for two Sims.
I would seriously appreciate any input on this
h078 said:
I wanted to find out following;
Is every S7 Edge Hardware capable of using dual SIM? I was wondering if I buy dual SIM tray for S7 Edge should I just be able to put into SIM cards provided the phone is unlocked and get service on both cards. I know it sounds too far-fetched but I was wondering did they really make separate motherboard for single Sim and dual SIM. I currently have AT&T S7 Edge with g935 U software on it. If something like that is possible I assume there would be some sort of software limitation or something needs to be enabled in the rom itself to make both SIM cards being recognizable , provided of course that phone has connections for two Sims.
I would seriously appreciate any input on this
Click to expand...
Click to collapse
no, not every model is dual sim capable. ON FD model. Part of the issue is that the phone must have two imeis for both sims to work together. most phones only have a single imei.

How to use 2 sims on S7 edge

Hi
how do i make 2 sims work on a S7. Do i have to write dual sim firmware.
Please give step by step instructions.
Thanks in advance
If it's international version of s7 935f you won't be able to use 2 sim cards
Sent from my SM-G935F using Tapatalk
You need the fd model to use 2 sims.
There's a hack to get 2 sims working on a non FD version. It involves removing the plastic from 2nd sim and glueing only the metal part onto the SD card that you insert into the sim tray next to the 1st sim.
TRoN_1 said:
There's a hack to get 2 sims working on a non FD version. It involves removing the plastic from 2nd sim and glueing only the metal part onto the SD card that you insert into the sim tray next to the 1st sim.
Click to expand...
Click to collapse
Incorrect, that "hack" is to get an sdcard working on dual sim fd phone. The non-fd phone only has one imei, inserting a second sim won't do you any good without a second imei.
Oh I think I mixed up my hacks. I meant this...
https://www.youtube.com/watch?v=h56umJkGMv8
Oh that thing, ya that works on any phone, if you want to lose your ip68 rating than go right ahead.

Verizon S10+ - Can you replace the sim tray with a dual sim tray?

Does anyone know if you can replace the sim tray on US branded S10's with a dual sim tray from the Global? And would the Dual SIM feature work?
azgoofball said:
Does anyone know if you can replace the sim tray on US branded S10's with a dual sim tray from the Global? And would the Dual SIM feature work?
Click to expand...
Click to collapse
Usually it doesn't work that way as there should be pins connected to the motherboard inside the phone for the second sim card.
azgoofball said:
Does anyone know if you can replace the sim tray on US branded S10's with a dual sim tray from the Global? And would the Dual SIM feature work?
Click to expand...
Click to collapse
If they make a conversion for the S10 then of course it would work. It worked for the S7 and S8, but without looking I don't know what version phone they're making the conversions for but I know that Simore and MagicSim made adapters for the older model phones. You need to realize though that it's dual sim standby and not active dual sim since both Sims will be sharing one modem and only one can be used at a time.

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