Dual SIM not working - E 2015 Q&A, Help & Troubleshooting

Hello there fellow devs!
Strange issue encountered today. Dual sim functionality stopped functioning today.
Only the second sim works. No ideas what to do. ROM flashing doesn't help, Factory reset is also futile.
stock ROM results in both my sim cards being deactivated and it show that there is no sim card.
AM i Officially screwed???

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[Q] Sim Slot BLOCKED???

My brother bring me a Motorola Razr D1 (XT914) and in someway the "SIM CARD SLOT" is "BLOCKED", i has been using many android devices and is the first time that i see that!...
My brother say this happend when he imput the SIM CODE wrong many times and eventualy the SIM card auto block for security reasons...
The strange thing is the phone seems to be "BLOCKED" too because i put another SIM from the same carrier and the problem persist..
Any ideas? any help??
Best regards an thanks!
wolframio74 said:
My brother bring me a Motorola Razr D1 (XT914) and in someway the "SIM CARD SLOT" is "BLOCKED", i has been using many android devices and is the first time that i see that!...
My brother say this happend when he imput the SIM CODE wrong many times and eventualy the SIM card auto block for security reasons...
The strange thing is the phone seems to be "BLOCKED" too because i put another SIM from the same carrier and the problem persist..
Any ideas? any help??
Best regards an thanks!
Click to expand...
Click to collapse
Yep, replace for a new SIM card.
That doesn't fix a locked slot. If the slot is locked and not the sim itself I haven't a clue how to fix it. I'm dealing with the same problem. I can use the same sim in one slot and it will work and in the other slot it says the slot is permanently locked. IT IS NOT THE SIM THAT IS LOCKED.

Sim Issues/ Carrier issue

I'm getting no service/emergency calls only in my Carrier label,sim isnt working the next day of my purchase of OPX, i have tried everything possibly like formatting ,restoring to stock,swapping in second sim slot, flashing kernel but nothing seems to work. I don't know what is the problem. Is it my Sim card or Phone or the Oxygen OS??? Plz help me as I feel disconnected from the world.Need a Fix urgently...Thanks in anticipation.
Country / Carrier?
It worked for one day and then nothing?
Did you tried an other SIM in your phone?

No sim card detected

so yesterday i was on my max 2 just playing a game when suddenly a messeage popped up in the notifictations about "no sim card detected" so i tried to remove the sim and re insert it but nothing,tried to switch roms with a reset and still nothing,anybody help?
P.S:the phone was shipped with only one working sim slot but i dont really use dual sim so i didnt care but now it dosent work and im scared that this is a hardware flaw
idan445 said:
so yesterday i was on my max 2 just playing a game when suddenly a messeage popped up in the notifictations about "no sim card detected" so i tried to remove the sim and re insert it but nothing,tried to switch roms with a reset and still nothing,anybody help?
P.S:the phone was shipped with only one working sim slot but i dont really use dual sim so i didnt care but now it dosent work and im scared that this is a hardware flaw
Click to expand...
Click to collapse
What is your provider? I have the same issue with a Sim card of the German Telekom. After 3 weeks of use it stopped working. I put in my second Sim which works for the moment. So the Sim slot is OK.
the sim works with other phones
Same problem, my sim was broken after 2 weeks.
I get a new one and phone works fine again.
Try to flash this zip via twrp
Same problem here... I have flashed andr68rus patch, but it does not work.
Problems start after flashing SmallEUI. Now I have flashed back the stock 20S and make a full wipe (including system) before. But there are still no SIM cards are found. When the phone is powered on and I open and close the SIM card slot, it found SIM card 1. but not second one.
After a reboot SIM card 1 is gone again. I have to open and close the SIM card slot again.
Any idea? Is this only a strange coincidence and my phone is defect or does smallEUI change something in the firmware or baseband files?
scharrrfi said:
Is this only a strange coincidence and my phone is defect or does smallEUI change something in the firmware or baseband files?
Click to expand...
Click to collapse
Maybe, but I experienced the same thing, also with small EUI, IIRC. Pulled my sim and put it in the wife's phone, and it worked ok, and hers worked ok in mine. Put mine back in my phone, and no dice. Flashed stock20s to try to fix it. At one point, I re-inserted with power on, and it was recognized, but my LTE went away. Was like that for a number of hours, and suddenly, after a couple of reboots, it seemed to come back to life.
Currently on AOKP MM, and I am floored by how nice it is, compared to everything else I have tried. I seem to have an issue with USB file transfers, and the LeEco camera doesn't work, but I've never seen the phone perform like it does now..
scharrrfi said:
Same problem here... I have flashed andr68rus patch, but it does not work.
Problems start after flashing SmallEUI. Now I have flashed back the stock 20S and make a full wipe (including system) before. But there are still no SIM cards are found. When the phone is powered on and I open and close the SIM card slot, it found SIM card 1. but not second one.
After a reboot SIM card 1 is gone again. I have to open and close the SIM card slot again.
Any idea? Is this only a strange coincidence and my phone is defect or does smallEUI change something in the firmware or baseband files?
Click to expand...
Click to collapse
It's happened with me too. Do you find a solution?
It seems that the second SIM card is really broken. I test it in two other phones and they will not detect it too. When I remove the second SIM, the first SIM ist detected normal.
In my case it seems following problem: https://www.golem.de/news/defekte-s...en-die-probleme-fuer-oneplus-1603-119620.html
i runned into the same issue after flashing CM13 from TEAMSPAIN
After flashing CM13 from teamspain, my sim card stopped working. I flashed many other roms but couldn't make work. Then i downloaded the official rom from leeco website and after installing it, everything is back to normal and obviously my sim card slot is working again.
works with oreo ?
andr68rus said:
Try to flash this zip via twrp
Click to expand...
Click to collapse
is this patch works when 2nd slim slot does not work at all or just when sim does not recognized but after inserting another sim works on same slot ?
because my both sim were working fine and suddenly 2nd sim slot showed sim faulty or not inserted error. checked on another phone and it works .
then inserted another sim on 2nd slot and that one works .
so can i try this patch on oreo aicp rom or not?
---------- Post added at 08:39 PM ---------- Previous post was at 08:38 PM ----------
andr68rus said:
Try to flash this zip via twrp
Click to expand...
Click to collapse
is this patch works when 2nd slim slot does not work at all or just when sim does not recognized but after inserting another sim works on same slot ?
because my both sim were working fine and suddenly 2nd sim slot showed sim faulty or not inserted error. checked on another phone and it works .
then inserted another sim on 2nd slot and that one works .
so can i try this patch on oreo aicp rom or not?

Samsung Galaxy J5 prime Phone not allowed error

Hello
I recently got a new sim card for my dual-sim j5 prime, upon inserting my sim in the 2nd sim slot I got a 'Phone not allowed' error in my notification bar and 'network not registered' when I try to dial something with my sim. The interesting part is that the sim attached to slot 1 is completely fine and works without a problem. For this reason I tested my new sim in slot 1 and it worked perfectly.
So this seems like a problem with my sim card slot. I tried restarting but it didn't help. Can any one please help we fix this issue?

2nd SIM not working

A time ago I used two SIMs on my phone and they worked well.
Now that I tried again, the SIM 2 don't have service and if I change position of the SIMs then the SIM that was on port 1 stops working and the other works...
SIM 2 is recognized but no signal on it.
Any help..?
rattsan said:
A time ago I used two SIMs on my phone and they worked well.
Now that I tried again, the SIM 2 don't have service and if I change position of the SIMs then the SIM that was on port 1 stops working and the other works...
SIM 2 is recognized but no signal on it.
Any help..?
Click to expand...
Click to collapse
Sounds like a problem I'm facing. I had a ANE-LX1 single sim and I successfully flashed the dual sim oeminfo and dual sim rom, now I get dual sim working only when a specific sim is set as the main one (the one set for data traffic). Is it your situation?
I'm going to root the phone again to check if some update messed with the oeminfo, then I will try to force flash another dual sim rom to see if it helps...
Same problem here - currently running latest firmware available 9.1.0.257 (C432E6R1P7). Can`t force the phone to work on both cards at the same time. Works only the one set as data card.
TIA for any ideas

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