1st sim slot not working - Lenovo ZUK Z2 (Plus) Questions & Answers

Debrup Ghosh:
Can anyone tell me if zuk works in 2nd sim volte if 1st sim slot is empty??? Actually my 1st sim slot is not working and volte also not working in 2nd sim if this works with others,then I'll go for a firmware flash....please report after testing thank you

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Sim not workoing

Please help me
before my sim was working fine but when i upgraded the rom it didnt work
the phn wld wrk but without sim

XT1789-06 UK single SIM to dual SIM

When I bought the XT1789-06, I thought it's a dual SIM version, since there is a lot of webs with specifications for XT1789-06 saying it is dual SIM.
But it looks like XT1789-06 can be both. Dual SIM and also single SIM. Mine is, unfortunately, single SIM, so I am thinking how to change it. The SIM slot inside the phone has pins for two sim cards. Problem is that the tray holder is only for one sim and one micro sd card. So I am thinking to buy a tray holder for two sim cards. Something like this: ebay.com/itm/Dual-SIM-Card-Slot-Holder-Tray-For-Motorola-Moto-Z-Force-Droid-XT1650-02-Black-/172710907197
The question is if I would also have to change the ROM? For which version?
try this
https://forum.xda-developers.com/moto-z-play/how-to/guide-to-enable-dualsim-singlesim-t3570601
i did this in moto z play,
but not yet tried on moto z2f
ilovemeow said:
try this
https://forum.xda-developers.com/moto-z-play/how-to/guide-to-enable-dualsim-singlesim-t3570601
i did this in moto z play,
but not yet tried on moto z2f
Click to expand...
Click to collapse
Thanks. I'll order the dual sim tray holder and try it.
endrju666 said:
Thanks. I'll order the dual sim tray holder and try it.
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Click to collapse
should be the same tray isnt it?
ilovemeow said:
should be the same tray isnt it?
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Click to collapse
Have your tried converting it to dual sim ?
zeeshan.siddique4779 said:
Have your tried converting it to dual sim ?
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Click to collapse
only tried in zplay (xt1635)
done, converted from ss to dual sim
1.backup sda from TWRP terminal
dd if=/dev/block/ada of=/sdcard/sda
2.flash file from twrp
https://drive.google.com/drive/folders/1n5J7_-qgwomq9E5HpHoShQ61pBEEDzbY?usp=sharing
ss for single sim
dsds for dual sim standby
and done
reference from:
http://tieba.baidu.com/p/5696971831
https://bbs.ihei5.com/thread-970831-1-1.html
screenshot
ilovemeow said:
screenshot
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Did you see a valid IMEI# on your 2nd slot after the conversion?
TopGun2000 said:
Did you see a valid IMEI# on your 2nd slot after the conversion?
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Click to collapse
nope
only IMEI on sim#1
IMEI#0 on sim#2
but it;s not affect for voice call/ data connection
ilovemeow said:
done, converted from ss to dual sim
1.backup sda from TWRP terminal
dd if=/dev/block/ada of=/sdcard/sda
2.flash file from twrp
https://drive.google.com/drive/folders/1n5J7_-qgwomq9E5HpHoShQ61pBEEDzbY?usp=sharing
ss for single sim
dsds for dual sim standby
and done
reference from:
http://tieba.baidu.com/p/5696971831
https://bbs.ihei5.com/thread-970831-1-1.html
Click to expand...
Click to collapse
For your Z2 Force, do you put two nano SIM cards in a SIM-and-MicroSD Card Slot Tray Holder?
How stable is SIM #2's signal and reception?
Which XT1789 version is your Z2 Force?
Thanks!
sam10000 said:
For your Z2 Force, do you put two nano SIM cards in a SIM-and-MicroSD Card Slot Tray Holder?
How stable is SIM #2's signal and reception?
Which XT1789 version is your Z2 Force?
Thanks!
Click to expand...
Click to collapse
for signal, ive knly tested for few hours, voz i need the sdcard more than sim2 lol

[Volte] Enable volte in ZUI v4.0.186 & v4.0.199

In ZUI v4.0.186 & v4.0.199 volte option is hidden, it might have been intentional, on accessing the volte menu you will see why there is an option to enable volte on both sim and interresting enough controls used, allow for both sim to have volte at same the time. When I tried using two volte sim didn't get the expected result but did get jio volte on my second sim slot with no signal on the first one. Its very buggy, so used volte as you were using before, on first sim slot.
Just install the app below to access volte menu.
Download
Thanks a lot!
Not working
Guys it only worked for a while now its again not showing anything
Not available now

Samsung J6 (sm-j600fn). Ready for Dual SIM ?

Hi,
I have a SM-j600FN and I know that the model for dual sim would be SM-j600FN/DS.
My doubt if the SM-j600FN have the hardware for support the second sim or somebody have converted to dual-sim? I searched but I have find nothing. My next step is buy the second tray for dual sim or convert my current second tray for accept the sim (the default cannot be used)
Update: I have installed a second sim and obviously the device/rom don't recognize
Click to expand...
Click to collapse
Thanks & regards,
I bought this J6 today and was kind of surprised it has dual sim for such a low price.
It has a tray for a simcard only and a tray for memory card + 2nd simcard.
Too bad i only have an old no (longer active) sim card as my second to test, but when insert it recognises the card and the provider shows up and when i want to make a call i get 2 phone icons and i can decide which simcard i want to use.
Thanks for your answer.
Could you say me the exact model of your J6 please?
I suspicious that my phone have a rom modified by my provider (Vodafone) and lock the second tray. I did the same test than you and the phone didn't recognize/detect the sim card.
Regards.
EolinLovecraft said:
Thanks for your answer.
Could you say me the exact model of your J6 please?
I suspicious that my phone have a rom modified by my provider (Vodafone) and lock the second tray. I did the same test than you and the phone didn't recognize/detect the sim card.
Regards.
Click to expand...
Click to collapse
I have updated the rom via Odin with PHE rom and in SW's provider I see PHE/PHE/ATL instead of ATL/ATL/ATL and the second sim tray is not detected too. I guess that my hardware is not compatible with dual seem
some other experience?
regards and thanks.

I only have one SIM slot in tray. Can I swap it and make my phone DUAL SIM?

I know A70 is dual SIM. However my 705W variant only has a 1 SIM slot. The 2nd SIM slot tray is covered with a plastic. If I switch my SIM tray with a 2 SIM tray will my phone become dual sim?
Chattersking said:
I know A70 is dual SIM. However my 705W variant only has a 1 SIM slot. The 2nd SIM slot tray is covered with a plastic. If I switch my SIM tray with a 2 SIM tray will my phone become dual sim?
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Click to collapse
yes you could try grarak modified lineage OS build which unlocked the 2st sim card slot , but you could have bands related problems.
edit : link added https://forum.xda-developers.com/galaxy-a70/development/rom-lineageos-16-0-t3968893
https://github.com/Grarak/android_device_samsung_a70q/releases
BK said:
yes you could try grarak modified lineage OS build which unlocked the 2st sim card slot , but you could have bands related problems.
edit : link added https://forum.xda-developers.com/galaxy-a70/development/rom-lineageos-16-0-t3968893
https://github.com/Grarak/android_device_samsung_a70q/releases
Click to expand...
Click to collapse
But even if it's unlocked via software, can it work without hardware modifications? I mean, do single sim models have a second sim reader inside?
You are asking about hardware modification.
Maybe you can get one of those microsd card + simcard combo module from alibaba.
Couple with it modified firmware, and maybe it would be possible
Is is possible to convert samsung A70 single sim to dual Sim SM 705w model?

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