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
Click to expand...
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.
Click to expand...
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 have flashed cm13 yesterday and found that my dual sim is not working. only sim 1 slot works. sim 2 slot shows the name of carrier
with no service tag and my sms services are not working as well. need help...........if u got any solution please tell me. i dont know much about these.
Hi,
I have Huawei bll-l22 phone which the dual sim settings
are missing. And the phone came just with one IMEI(normally two because it's a dual sim phone). When I put sim in slot 2, the phone don't recognize the second sim card.
Please somebody can help me to resolve that problem?
I'm in cameroon.
the firmware build number:BLL-L22C900B150
Has anyone been able to get dual SIM working on their T-Mobile OP8 after flashing to the Global ROM?
I have a dual SIM tray and whenever I insert two SIMs, I get service on the first, and the second is recognized, but refuses to connect to any network. This applies to any second SIM inserted. The IMEI numbers are showing as the same for IMEI1 and IMEI2, but that shouldn't be an issue as far as I can tell.
Thanks!
I have same issue did you find any fix? Please let me know
themoveforward said:
Has anyone been able to get dual SIM working on their T-Mobile OP8 after flashing to the Global ROM?
I have a dual SIM tray and whenever I insert two SIMs, I get service on the first, and the second is recognized, but refuses to connect to any network. This applies to any second SIM inserted. The IMEI numbers are showing as the same for IMEI1 and IMEI2, but that shouldn't be an issue as far as I can tell.
Thanks!
Click to expand...
Click to collapse
I have same issue did you find any fix? Please let me know
i have the same issue
Follow these instructions at your own risk. I am NOT responsible for you bricking your device. If you are new to this I advise you to do it with someone who is experienced and knows what he/she is doing.
I was recently able to "rebrand" my OnePlus 8 T-Mobile 5G phone from the T-Mobile version to the European version using these steps (I tried with the GLOBAL version but it DID NOT work):
1. Unlock the bootloader. Steps given in:
https://www.oneplus.com/support/answer/detail/op588
2. I was able to to use the MSMTool_instantnoodle_tmo_15_O.06_200411.zip to go back to 10.5.7.IN55CB
(OnePlus T-Mobile Android build) using the method given in (GLOBAL version FAILED for me here) :
Instructions: https://forum.xda-developers.com/oneplus-8/how-to/op8-unbrick-tool-to-restore-device-to-t4093043
Tool: https://androidfilehost.com/?fid=4349826312261823571
3 Repeat Step 1. Go to Step 4.
4. Next, I upgraded to 10.5.9.IN21BA (OnePlus European Android build) by flashing 10.5.9-EUROPE-OnePlus8Oxygen_15.E.18_OTA_018_all_2007160043_913306-FASTBOOT.zip using the method given in:
Instructions: https://forum.xda-developers.com/t/rom-stock-fastboot-op8-stock-fastboot-roms-for-oneplus-8.4084629/
Tool: https://sourceforge.net/projects/fastbootroms/files/OnePlus 8/
5 Repeat Step 1. Go to Step 6.
6. Finally, I upgraded the phone to the latest OnePlus Android version for this phone through System Update to 11.0.9.9.IN21BA (OnePlus European Android build). Now Dual Sim capability is installed but it does NOT show.
7. Relock the bootloader and NOW dual sim capability shows under SIM & Network.
What I don't understand is that the model, IN2017 (T-Mobile), remains the same but when you boot the phone, the T-Mobile logo does NOT show and it boots like a non-T-Mobile OnePlus phone. I expected the model to change to the European model number (IN2013). My goal was to get Dual-Sim working as it has been banned by carriers here in the good ol' USA. My phone now shows 2 sim cards, originally it only showed 1. Now I have to verify what signals it really works with (5G, 4G ?) and if the dual sim capability works.
Cmdr_Colstel said:
Follow these instructions at your own risk. I am NOT responsible for you bricking your device. If you are new to this I advise you to do it with someone who is experienced and knows what he/she is doing.
I was recently able to "rebrand" my OnePlus 8 T-Mobile 5G phone from the T-Mobile version to the European version using these steps (I tried with the GLOBAL version but it DID NOT work):
1. Unlock the bootloader. Steps given in:
https://www.oneplus.com/support/answer/detail/op588
2. I was able to to use the MSMTool_instantnoodle_tmo_15_O.06_200411.zip to go back to 10.5.7.IN55CB
(OnePlus T-Mobile Android build) using the method given in (GLOBAL version FAILED for me here) :
Instructions: https://forum.xda-developers.com/oneplus-8/how-to/op8-unbrick-tool-to-restore-device-to-t4093043
Tool: https://androidfilehost.com/?fid=4349826312261823571
2 Repeat Step 1. Go to Step 3.
3. Next, I upgraded to 10.5.9.IN21BA (OnePlus European Android build) by flashing 10.5.9-EUROPE-OnePlus8Oxygen_15.E.18_OTA_018_all_2007160043_913306-FASTBOOT.zip using the method given in:
Instructions: https://forum.xda-developers.com/t/rom-stock-fastboot-op8-stock-fastboot-roms-for-oneplus-8.4084629/
Tool: https://sourceforge.net/projects/fastbootroms/files/OnePlus 8/
4 Repeat Step 1. Go to Step 5.
5. Finally, I upgraded the phone to the latest OnePlus Android version for this phone through System Update to 11.0.9.9.IN21BA (OnePlus European Android build). Now Dual Sim capability is installed but it does NOT show.
6. Relock the bootloader and NOW dual sim capability shows under SIM & Network.
What I don't understand is that the model, IN2017 (T-Mobile), remains the same but when you boot the phone, the T-Mobile logo does NOT show and it boots like a non-T-Mobile OnePlus phone. I expected the model to change to the European model number (IN2013). My goal was to get Dual-Sim working as it has been banned by carriers here in the good ol' USA. My phone now shows 2 sim cards, originally it only showed 1. Now I have to verify what signals it really works with (5G, 4G ?) and if the dual sim capability works.
Click to expand...
Click to collapse
even if the two simcards appear, they won't work for you. the second simcard always says "no service"
acostmisa said:
even if the two simcards appear, they won't work for you. the second simcard always says "no service"
Click to expand...
Click to collapse
I went to Verizon yesterday with the setup written above and the second sim did register as Verizon with the first card in slot 1 as T-Mobile. The problem was that we only tested it with 5G. 5G did NOT work with both sim cards placed. I should have put my phone in 4G to see if THAT works. I will go to another Verizon store later in the week to see if it will work in 4G with both sim cards. Hopefully it will.
I went to the Verizon store yesterday and they said that I needed to open an account and activate my phone with that account in order for the Verizon service to work. I was under the impression that all you needed was a Sim card with an active Verizon account and a phone with a good IMEI. I asked them to use a spare Verizon card at the store to test it just to make sure it would work. He wanted me to sign up first which I wasn't going to do. I will have to find another store. Am I correct in assuming that you can just use the sim card from another phone and the service should automatically work ? Or do I have to "register" that phone with Verizon ? F%^k Verizon. Thank you.
So I went to the Verizon store yesterday and brought my OnePlus 8 (IN2017 updated with Oxygen OS 11.0.9.9IN21BA European version). I brought it in unlocked and the Verizon clerk told me it was "dangerous" to leave it unlocked and advised me to lock it (of course I did not). I had my phone set to LTE (4G) under network settings and the two SIMs slots were showing with the first one occupied by T-Mobile. The clerk placed a Verizon SIM card on the 2nd slot and the phone recognized it but IT DID NOT work (messages nor calls). So apparently, according to other users over the web, the blockage of service is coming from the carriers (T-Mobile, Verizon, etc.) themselves. They frown upon dual sim capability and until there are enough complaints to make them change their stance they will continue to refuse to provide dual sim service. It may work in Europe and Asia, but here in the US, not a chance. Talk about UNFREE market.
I have bought OnePlus 8 used. At that time dual sim was working fine. However, the phone was not updated. When i started updating there were 3 updates pending and phone downloaded and installed them one after another.
After update i noticed tha sim 2 is not showing in status bar. In settings sim 2 is showing, however when i tap on it, the menu is all gray out and the enable button cannot be taped/ enabled.
It also shows the sim 2 operator name and sim number but cannot enable it.
When i remove sim tray it also shows no sim icon in status bar with 2 sims icon.
I have tried replacing sim cards, restarting with areoplane mode but no luck.
Please help how can i again start using the sim 2 as it was working fine before update.
Current version: IN2015_11_C.33
shafiqb9 said:
(...) phone downloaded and installed them one after another.
(...)
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Click to collapse
Perhaps, after each update, it was necessary to check the operation of both SIMs, or perhaps it became too many changes at once and a conflict appeared somewhere.
If you installed OTA update, try to backup important data first, remove both SIMs, restore the phone to factory settings and insert the SIM cards one at a time (restart after inserting and setting the first SIM).
@shafiqb9 have u solved your problem.
Suvrat Sharma said:
@shafiqb9 have u solved your problem.
Click to expand...
Click to collapse
Nope. Downgraded to OOS 11 for using both sims.
It was a single sim mobile,
its converted to dual sims mobile bro that's y you can't use dual sim on updated version,
On oxygenos 13, dual sim is working?