When I put sim card in slot 1 it is not recognized and I get network unknown. I cannot make calls/receive calls and there is red plus symbol on notification bar. When I put the same sim card in slot 2 of Moto G every thing is working as expected.
I am using original micro sim card and it is working in other phone as well with out any problems.
I am on kitkat 4.4.4 -
Build KXB21.14-L1.40
Baseband MSM8626BP_1032.390.81.01P,ROW_DSDS_CUST
system 210.12.40.falcon_umtsds.AsiaRetail.en03
twinkletwinkle said:
When I put sim card in slot 1 it is not recognized and I get network unknown. I cannot make calls/receive calls and there is red plus symbol on notification bar. When I put the same sim card in slot 2 of Moto G every thing is working as expected.
I am using original micro sim card and it is working in other phone as well with out any problems.
I am on kitkat 4.4.4 -
Build KXB21.14-L1.40
Baseband MSM8626BP_1032.390.81.01P,ROW_DSDS_CUST
system 210.12.40.falcon_umtsds.AsiaRetail.en03
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Click to collapse
Have you managed to fix it somehow?
Did u checked your setting?
Yes I have checked all the settings. Actually with dual sim settnigs - Sim1 is disabled and is not enabled even if the Sim 1 is inserted.
Warranty repair perhaps?
twinkletwinkle said:
Yes I have checked all the settings. Actually with dual sim settnigs - Sim1 is disabled and is not enabled even if the Sim 1 is inserted.
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Click to collapse
Sounds like it could be an issue with the sim slot hardware. If your device is under warranty perhaps a warranty repair or replacement?
I was curious as a colleuge of mine recently purchased the OP8 5G from T-Mobile rather than directly from OnePlus. The sim tray only supports one SIM, and I am assuming that as it has been done historically on prior OP devices, the T-Mobile OP software only supports one sim card. I am unsure as to whether the T-Mobile variant has hardware to support two sims or not, but I think it may only a software issue. Would rooting and flashing to get onto the Global firmware enable dual-sim support for a OP8 5G T-Mobile variant?
Thank you,
I'd assume so. I'm planning on trying this myself when my dual sim slot comes in from Shenzhen.
tri_cchan said:
I'd assume so. I'm planning on trying this myself when my dual sim slot comes in from Shenzhen.
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Click to collapse
What is the dual sim's use case for you? International travel or work/personal use?
I think in Asian countries, people often get 1 cheap SIM for cheap voice plan and another SIM for cheap data plan.
iKevin said:
What is the dual sim's use case for you? International travel or work/personal use?
I think in Asian countries, people often get 1 cheap SIM for cheap voice plan and another SIM for cheap data plan.
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Click to collapse
In my colleague's case, for work and personal use. I personally have my OP7 Pro as my work phone, and it is the unlocked non-carrier variant, so the dual sim support is there. However, for my use, too, I would like to have the capability available on my T-Mobile OP8 5G just as my colleague. I had him order a dual-sim tray from eBay, and from a US seller to get the item faster. If it works for him, I'll likely order the dual sim tray.
i dont think the global or eu roms support dual sim. there was a disclaimer under the network & sim settings untill ob1. not sure if ob1 supports dual sim yet
Dual sim works, however, i cant get my Verizon sim to work with t-mobile. I get the CDMA-less notification, i read that you can get it to work, you just got to call verizon to register your imei with them so dual sim can work. This is running open beta, stable 10.5.12 wouldnt see my second sim.
I havent called them because my verizon sim is through work.
esjames said:
Dual sim works, however, i cant get my Verizon sim to work with t-mobile. I get the CDMA-less notification, i read that you can get it to work, you just got to call verizon to register your imei with them so dual sim can work. This is running open beta, stable 10.5.12 wouldnt see my second sim.
I havent called them because my verizon sim is through work.
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Click to collapse
And, this is on a T-Mobile OP8 5G? If so, I wonder if my colleague would have any issues running two T-Mobile SIMs on a global ROM? (I suspect the T-Mobile software doesn't even recognize a second SIM).
SimranSingh said:
And, this is on a T-Mobile OP8 5G? If so, I wonder if my colleague would have any issues running two T-Mobile SIMs on a global ROM? (I suspect the T-Mobile software doesn't even recognize a second SIM).
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Click to collapse
Yes, this is on my t-mobile OP8. I converted to global because I prefer global. I haven't tried two t mobile sim cards, and I haven't tried using t mobiles firmware.
esjames said:
Yes, this is on my t-mobile OP8. I converted to global because I prefer global. I haven't tried two t mobile sim cards, and I haven't tried using t mobiles firmware.
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Click to collapse
So, after receiving the dual sim tray, and inserting two SIM's on T-Mobile's software--it does not even recognize the second SIM. What particular guide did you use to port over to the global firmware? Thanks!
I would also be really interested in knowing how to get the second SIM to read on the T-Mobile IN2017 variant of this phone. I've been tearing my hair out trying to get this to work, now that I've seen that the international models running Android 11 OB2 seem to have functional dual SIM. Personally, I kind of gave up on getting Android 10 to do dual SIM- even with the European ROM (which I'm fairly certain is the only way dual SIM on this device was ever officially supported by OnePlus), I haven't gotten it, but I think I'm annoyingly close. T-Mobile MSM to Global 10.5.12 to Android 11 DP2 will get you non-functional dual SIM- the device will see both SIM cards, and will properly identify them and their phone numbers, but the second SIM won't connect to voice or data, no matter what I do. If I upgrade the device from DP2 to OB2, the dual SIM UI stays (if I go directly from Global to OB2, it doesn't show), but the second SIM slot is still non-functional- no service for voice or data on the second SIM.
For anyone who has gotten a T-Mobile OP8 to properly read two SIM cards, I'd really like to know how- through my hours of messing around with this thing, it always seems like one step forward and two steps back. Hopefully the final release of Android 11 clears this up.
(My two SIMs are from T-Mobile and AT&T, respectively. Unfortunately, I don't think two T-Mobile SIMs has a chance of ever working with this setup on any firmware- "SIM 1" and "SIM 2" share an IMEI. While that's probably okay for SIMs from different carriers, that's not going to fly on the same carrier- it will look like a cloned IMEI to the network, and probably get shut down fairly quickly.)
Has anyone managed to make it work the Oneplus 8 (pro) unlocked USA version with 2 sims at the same time ? Thank you
It's working on mine with second simbtray however there is no service with both inserted. BecUzebitvhas the same IMEI as slot 1
esjames said:
Yes, this is on my t-mobile OP8. I converted to global because I prefer global. I haven't tried two t mobile sim cards, and I haven't tried using t mobiles firmware.
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Click to collapse
I did the same thing to mine but I'm just seeing one imie active and usually it's 2
angelosabatini said:
Has anyone managed to make it work the Oneplus 8 (pro) unlocked USA version with 2 sims at the same time ? Thank you
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Click to collapse
I'd also like to know
Yes I have successfully convert my T-Mobile OnePlus 8 to global ROM and now I have dual sim compatibility.
haseebali55554 said:
Yes I have successfully convert my T-Mobile OnePlus 8 to global ROM and now I have dual sim compatibility.
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Did you try using 2 sim cards ? Both working fine ? If yes, please share the guide with us. Thanks.
dedsecdz said:
Did you try using 2 sim cards ? Both working fine ? If yes, please share the guide with us. Thanks.
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Click to collapse
1. First of all unlock bootloader and u also have permanent sim unlock from t-mobile.
2.After unlocking your phone will restart, setup your oneplus 8 and enable developer mode and in developer mode enable "usb debugging" .
Note: You must have working adb/fastboot drivers.
3. now restart your phone to bootloader.
4. Download any android 10 fastboot Rom from xda developer.
"I have tested this : https://sourceforge.net/projects/fastbootroms/files/OnePlus 8/10.5.9-EUROPE-OnePlus8Oxygen_15.E.18_OTA_018_all_2007160043_913306-FASTBOOT.zip/download
4.1. For flashing this rom your phone has to be in fastboot mode.
5. After downloading extract the rom and open extracted folder and double click "flah_all.bat
5.1.connect your phone to computer in fastboot mode and enter "Y"
wait for 5 to 7 minutes, in this process your oneplus will restart to recovery mode but never unplug the cable or use your phone during installation.
Note: i have tested dual sim with dual sim tray.
haseebali55554 said:
1. First of all unlock bootloader and u also have permanent sim unlock from t-mobile.
2.After unlocking your phone will restart, setup your oneplus 8 and enable developer mode and in developer mode enable "usb debugging" .
Note: You must have working adb/fastboot drivers.
3. now restart your phone to bootloader.
4. Download any android 10 fastboot Rom from xda developer.
"I have tested this : https://sourceforge.net/projects/fastbootroms/files/OnePlus 8/10.5.9-EUROPE-OnePlus8Oxygen_15.E.18_OTA_018_all_2007160043_913306-FASTBOOT.zip/download
4.1. For flashing this rom your phone has to be in fastboot mode.
5. After downloading extract the rom and open extracted folder and double click "flah_all.bat
5.1.connect your phone to computer in fastboot mode and enter "Y"
wait for 5 to 7 minutes, in this process your oneplus will restart to recovery mode but never unplug the cable or use your phone during installation.
Note: i have tested dual sim with dual sim tray.
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Click to collapse
we dont need to root ?
we dont need to back up modem and persist as well?
aviator.OO7 said:
we dont need to root ?
we dont need to back up modem and persist as well?
Click to expand...
Click to collapse
I haven't face any fingerprint or network signals problem after converting.
haseebali55554 said:
I haven't face any fingerprint or network signals problem after converting.
Click to expand...
Click to collapse
do i need to root to begin with ?
After updating to the latest update, android 11 global for poco f2 both my sim card slots have been turned off.
When i try to turn on sim1 it tells me that only 1 sim card can have 5g enabled and to change my network settings.
Unfortunately none of the slots wont turn on so i cant change the network settings for either sim.
Have tried putting in 1 sim and restarting, in either slot 1 or 2 the sim slot still wont turn on.
Is there any other way to do it other than a factory reset?
I have same problem with you. I cannot turn on sim card 1 or 2. İt is very weird problem. Did u solve the problem ?
A hard reset maybe help
usmanjavid said:
A hard reset maybe help
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Click to collapse
Yeap i did it. I had another bugs after the update. But factory reset fixed all of them
This version (stable BETA) in android 11 has multiple bugs. Many prefer to revert to the previous version.
https://forum.xda-developers.com/t/...11-general-discussions-bugs-features.4165065/
Great,! Wish I'd bloody read this thread before I updated. At least I know now, it's not just me. Unfortunately, for me at least, I'm on stock & haven't modded, unlocked bootloader, rooted or flashed anything at all. Does anyone know if Xiaomi's backup utility is any good or shall I not bother before I factory reset?. Cheers.
I checked my IMEI on Visible's website and it checked out. I am running the Android 11 Pixel Experience ROM and Google Fi SIM worked fine, but I cannot get the Visible SIM to even be recognized as existing in the tray. I tried both SIM slots. Does this have something to do with being rooted? Ironically I installed this SIM in my Poco F3 which is NOT compatible, and although I got no service, that phone did recognize the SIM and even all of the Verizon APNs. Just wondering if you guys have any thoughts? Thanks.
tuffluck said:
I checked my IMEI on Visible's website and it checked out. I am running the Android 11 Pixel Experience ROM and Google Fi SIM worked fine, but I cannot get the Visible SIM to even be recognized as existing in the tray. I tried both SIM slots. Does this have something to do with being rooted? Ironically I installed this SIM in my Poco F3 which is NOT compatible, and although I got no service, that phone did recognize the SIM and even all of the Verizon APNs. Just wondering if you guys have any thoughts? Thanks.
Click to expand...
Click to collapse
It shouldnt have anything to do with being rooted, but if you have converted/changed firmware then that could be the issue.
If you have the engineering mode app installed u can check the sim in *#808# or by adb shell am start com.oneplus.factorymode/.manualtest.SimCardTest . If the test fails then the modem or your efs is messed up.Hopfully you have a efs back up. Try starting over with MSM flash first.I believe the fail sim is caused buy a key that is in the locked sfs folder of the efs. I do know for a fact there is a RSUprivate key there also. And have obtained it. But still have not found a way to write this back, other then efs restore in twrp.
I'm guessing it is related to the ROM.
tuffluck said:
I checked my IMEI on Visible's website and it checked out. I am running the Android 11 Pixel Experience ROM and Google Fi SIM worked fine, but I cannot get the Visible SIM to even be recognized as existing in the tray. I tried both SIM slots. Does this have something to do with being rooted? Ironically I installed this SIM in my Poco F3 which is NOT compatible, and although I got no service, that phone did recognize the SIM and even all of the Verizon APNs. Just wondering if you guys have any thoughts? Thanks.
Click to expand...
Click to collapse
I'm on visible and I'm using an unlocked T-Mobile gm1915. When on the global rom, it gave me a pop up to instructions for using the verizon sim on a cdma-less device. However, I didn't have to do anything and the sim started randomly working after waiting 5-10 minutes. So, i recommend just leaving the sim in for atleast 10 min and have mobile data on.
Has anyone lost SIM card slot 2 after SW update and now even the settings are even for a 1 slot SIM?
Even when switching SIM cards, only SIM1 is seen in the settings and even in the *#*#4636#*#* menu there is now only 1 slot
ncountas11 said:
Has anyone lost SIM card slot 2 after SW update and now even the settings are even for a 1 slot SIM?
Even when switching SIM cards, only SIM1 is seen in the settings and even in the *#*#4636#*#* menu there is now only 1 slot
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Click to collapse
Which rom(full name)?
NOSS8 said:
Which rom(full name)?
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MIUI Global 13.0.5.0 (SLCIDXM)
ncountas11 said:
MIUI Global 13.0.5.0 (SLCIDXM)
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Click to collapse
Stable Indonesian Rom.
Weird problem, try to do a factory reset.
ncountas11 said:
Has anyone lost SIM card slot 2 after SW update and now even the settings are even for a 1 slot SIM?
Even when switching SIM cards, only SIM1 is seen in the settings and even in the *#*#4636#*#* menu there is now only 1 slot
Click to expand...
Click to collapse
Same for me, but it happened randomly not after an update. I am on EEA official from. Don't feel like doing a factory reset to check if it will work again...