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OnePlus 7 pro 5G dual SIM, but not active?

Hey all, as from today I'm a OnePlus 7 pro 5G owner... With a bit of a downfall.
Before I bought the phone I made a bit of research about this device to see capabilities and if it's worth the money.
As I know this device is dual SIM from factory and I was expecting my op7pro 5g to be the same... and it is in a way, but has no functionality of dual SIM phone.
When I've pulled the SIM tray out I could see inside the phone on both sides of SIM tray has SIM pins to make contact to the SIM, so I've made one of the SIMs to fit in the tray because is not a dual SIM one, but you can adjust the SIM card to fit there.. and I know it's not the SIM faulty because I've tried it on and works.
Any idea how to make it work dual SIM... I have to specify it's on a contract from EE UK.
Please give me some ideas, I know to all the stuff with ADB so I'm not afraid to use it ?.

If the phone came from EE instead of OnePlus directly, then it might be subsidized (payments) through the carrier. If it is not unlocked (cannot unlock the bootloader), then you probably won't be able to fix it.
Here in the States (USA), TMobiles OP7 Pro is locked and the second sim disabled. But you can fix that by unlocking the phone and flashing the International Rom to unlock the second sim slot (second slot is software locked, not hardware locked), allowing dual SIM if you can get your hands on another sim tray with the dual slots.
Don't know if this is the same for you, but it is worth looking into if your carrier does lock the phones down and allows them to be unlocked.

It's not dual SIM as it's a limitation of the 5g modem

The 7 Pro 5G IS dual SIM capable. It has 2 modems. The Qualcomm X50 5G modem and the modem built into the SOC for 4G. It's the firmware that's restricting dual SIM functionality. If you wish, you can convert to the international variant but you WILL lose 5G connectivity (if you have it).
Sent from my [device_name] using XDA-Developers Legacy app

Can anyone please tell me if the oneplus7 pro and oneplus 7 t share the same type of sim tray, I want a duel sim tray.

gigawatt said:
Can anyone please tell me if the oneplus7 pro and oneplus 7 t share the same type of sim tray, I want a duel sim tray.
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yes I own the Oneplus 7 Pro and that sim tray is the exact same one that goes into the OP7T Pro Mclaren.
I have t-mobile and i bought my sim card slots from amazon for both the OP 6T and OP 7 Pro. I was able to successfully convert each of those phones using msmtool. But the damn OP7T Pro Mclaren 5G from t-mobile I can't find a solution.
I have the Oneplus 7t Pro Mclaren 5G Edition and all I want is to activate dual sim. At this point I don't even care if 5G works. I would sacrifice it if there was some way to install OP7T Pro onto the OP7T PRo Mclaren.

speedyjay said:
The 7 Pro 5G IS dual SIM capable. It has 2 modems. The Qualcomm X50 5G modem and the modem built into the SOC for 4G. It's the firmware that's restricting dual SIM functionality. If you wish, you can convert to the international variant but you WILL lose 5G connectivity (if you have it).
Sent from my [device_name] using XDA-Developers Legacy app
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I own the Oneplus 7T Pro Mclaren 5G. Is there a way to use Oneplus 7T PRo software to enable dual sim. I am willing to sacrifice 5G
{Mod edit}

Hi, could you please share msm for me so I could get things working? Thanks

gigawatt said:
Hi, could you please share msm for me so I could get things working? Thanks
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sure, which phone? the 6T or 7 Pro?

Can I confirm that you tried using a OP7Pro international firmware via MSMTool on your OP7PRO5G? Did you ever fix the issue?
I'm just trying to workout if using a OP7Pro international firmware makes it work as a dual 4g sim (I really dont care about the 5G)
FyI I have a OP7PRO5G(EU)
I tried to use msmtool to make it a op7pro international (was a fail or I wasn't doing something right....I get "Param pre-processing") Can someone please advise me.

speedyjay said:
The 7 Pro 5G IS dual SIM capable. It has 2 modems. The Qualcomm X50 5G modem and the modem built into the SOC for 4G. It's the firmware that's restricting dual SIM functionality. If you wish, you can convert to the international variant but you WILL lose 5G connectivity (if you have it).
Sent from my [device_name] using XDA-Developers Legacy app
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Hello how i Can do'it?

Dual SIM

I'm looking to buy a new active dual sim phone. OnePlus is my first option, but I can't find any solid answer if OnePlus 8 has active dual sim capability in the US. I had a 6 and a 7 Pro and both had active dual sim. Did that change with the 8? Any help would be appreciated. Thanks!

Single SIM slot here: OnePlus 8 IN2015

Dual sim working here. IN2013.

They claim it will be enabled in a future update, its been nearly 4 months. There is absolutely no reason for this in general and if there is a method to bypass this, i'd love to know. Bought it right from oneplus too.

i have in2010 chinese model dual sim does work in 4g however when i enable 5g it won't work until i disable sim2 and it only work in sim1 sadly

Thank you all for the replies. Much appreciated!

Is it true when you enable 5G you lose dual sim functionality?

I just heard it from one of the reviewers and I needed to confirm it from one of the experts here

isaacmajdi said:
I just heard it from one of the reviewers and I needed to confirm it from one of the experts here
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Nope..you can just have 5g on one sim card available. Second sim can be still used for phone calls etc..
Hint: i am no expert...but common sense should apply

Yes 5g will disable other sim.Just tested

sakibm47 said:
Yes 5g will disable other sim.Just tested
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so you say when 5g is enabled, phone is only single sim? I thought one 4G + one 5G. Could you please try if SIM2 can work with 5G? or 5G has to be SIM1?

ozkaya said:
so you say when 5g is enabled, phone is only single sim? I thought one 4G + one 5G. Could you please try if SIM2 can work with 5G? or 5G has to be SIM1?
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When 5g is enabled, phone is only single sim and sim1or2 doesn't really matter.

Yes poco said that when you use 5G phone will be single sim till they will give update that will make 1 sim 5G and other will be 4G

You just have to read the user guide.........
About Dual SIM:
• Supports Dual SIM cards with no carrier restrictions, single 5G or dual 4G
connectivity ①
• Supports Dual Nano-SIM card slots, either card can be set as the primary
card
• Supports single SIM 5G/4G+/4G/3G/2G
• Supports Dual SIM 4G+/4G/3G/2G
• Supports Dual SIM VoLTE HD calling ②
Note ①: 5G support depends on the local telecom operator’s network; if
the primary card 5G is enabled, the secondary card will not be available;
subsequent software upgrades will include support for primary 5G and
secondary 4G/3G/2G card mode function in dual-card situations.
Note ②: VoLTE service availability depends on the local telecom operator’s
network and service deployment
Not so complicate....

So according to the user manual dual sim support while 5g enabled is coming with a future update? the phone is five months old, did the promised update come through yet? are all other ROMs available for this device have the same issue?

The promised update is yet to come .

isaacmajdi said:
So according to the user manual dual sim support while 5g enabled is coming with a future update? the phone is five months old, did the promised update come through yet? are all other ROMs available for this device have the same issue?
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The phone was launched 5 months ago but probably due to the pandemic there is surprisingly little development and discussion from the community's side. Barely 4 roms.
I have been waiting 2 months now to upgrade because there is no way I ever use MIUI.
Last week LineageOS was released, but it's Android 10, and only initial build.
I will probably wait or lineageOS 18 before I buy this phone, but this means waiting few months the way things are going.

Dont forget that very few people use dual sim on their phone... Not a priority to fix ;o)

Mastakony said:
Dont forget that very few people use dual sim on their phone... Not a priority to fix ;o)
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I would say there are more dual sim users than 5G users, maybe that's it.

Dual SIM / Google Fi

Does anyone have any clue as to whether or not I could run a Verizon SIM and a Google Fi SIM on this? I currently have the Google Pixel 4XL unlocked using a Verizon SIM and a Google Fi eSIM and was looking to get the 8T as a replacement. But I need both SIMs to work in the phone.
I travel the US and in many places I have spotty signal on one or the other and need to be able to switch between them.
I have been reading that the 8 and the 8 Pro have had (or still have?) issues with the dual SIM not being available.
TIA

Inane65 said:
Does anyone have any clue as to whether or not I could run a Verizon SIM and a Google Fi SIM on this? I currently have the Google Pixel 4XL unlocked using a Verizon SIM and a Google Fi eSIM and was looking to get the 8T as a replacement. But I need both SIMs to work in the phone.
I travel the US and in many places I have spotty signal on one or the other and need to be able to switch between them.
I have been reading that the 8 and the 8 Pro have had (or still have?) issues with the dual SIM not being available.
TIA
Click to expand...
Click to collapse
If you have the esim for fi and have the unlocked dual sim you should be fine. I converted my 7t to the international dual sim and used a T-Mobile and a Verizon sim without issue. If they didn't have dual sim available in assuming they were carrier locked firmware

I am thinking to buy IN2013, is it possible to activate Band 71 for T-mobile use?

I am thinking to buy IN2013, is it possible to activate Band 71 for T-mobile use?
Or should I buy IN2017 and try to flash a ROM that will activate dual SIM? Dual Sim is a non-negotiable feature I need.

No.

BeardKing said:
No.
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No to both questions?

No, you can't add bands. And I know you've said you need dual sim, but I just don't think you'll get optimal network coverage unless you have the IN2015 or the T-Mobile variant ... which I think are only single sim.

BeardKing said:
No, you can't add bands. And I know you've said you need dual sim, but I just don't think you'll get optimal network coverage unless you have the IN2015 or the T-Mobile variant ... which I think are only single sim.
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I see. I was asking because a had bought a IN2013, but they sent an IN2017 instead. They apologized, but they also told me that if I flashed the global ROM the dual sim functionality would be activated since IN2013 nd IN2017 are the same hardware.
I ended up returning the phone, but I figured it could be a possibility if the vendor is correct about that.

aoe2exp said:
I see. I was asking because a had bought a IN2013, but they sent an IN2017 instead. They apologized, but they also told me that if I flashed the global ROM the dual sim functionality would be activated since IN2013 nd IN2017 are the same hardware.
I ended up returning the phone, but I figured it could be a possibility if the vendor is correct about that.
Click to expand...
Click to collapse
They are you can flash it to the global firmware and get a dual SIM tray for it. The T-Mobile is the same as the unlocked variant here in America from what I understand. The only difference is updates, the SIM tray, and it's officially IP rated.