I inserted valid nano sim card properly. Same card works in all other phones. In Z3 on lock screen at the top it says NO SIM card - Emergency calls only. Exclamation mark in notifications shows No service (Selected network unavailable).
Under Settings>Mobile Networks>Service providers I see all providers available in my region but can't connect automatically or manual. When i Choose manual (my network HT HR) T-mobile, then Registering on HT HR... and after it says Cannot connect to network now. Please try later. I have tried multiple sim cards from all network providers. Under Service menu> Sim Lock there are all 0 (zeros) which I think shows that phone isn't Sim locked.
Tried to flash few stock ROMs over Flashtool, repair via companion, even tried to root and with [ROM][MARSHMALLOW][LB/UB][570][Z3] eXistenZ Marshmallow | v1.0.5 |
Last thing I tried was to put piece of paper between Sim card and Sim tray.
Same thing with everything. Could it be SW issue or HW? If it's SW what to do?
Pozdrav
If your phone says NO SIM, and your SIM works in other devices, then it's a phone error. If your SIM doesn't work in a different phone, replace SIM.
Hi. I`ve got an MHA-L29 and I`ve got a problem with dual sim settings. In dual sim setting menu if I select default mobile data (4G services associated with default SIM) on SIM 1 then I lose the signal from that sim (Emergency calls only) and I`ve got SIM 2 signal. If I select default mobile data on SIM 2 I lose signal from that sim and I receive signal on SIM1. Basically, I can`t have both sim working (network signal) because I need to set 1 SIM on default mobile data and the one that I set it`s losing signal.
Maybe someone can help me. Thanks
Coscovitul said:
Hi. I`ve got an MHA-L29 and I`ve got a problem with dual sim settings. In dual sim setting menu if I select default mobile data (4G services associated with default SIM) on SIM 1 then I lose the signal from that sim (Emergency calls only) and I`ve got SIM 2 signal. If I select default mobile data on SIM 2 I lose signal from that sim and I receive signal on SIM1. Basically, I can`t have both sim working (network signal) because I need to set 1 SIM on default mobile data and the one that I set it`s losing signal.
Maybe someone can help me. Thanks
Click to expand...
Click to collapse
This is strange behavior.
By default there is no problem. See my screenshot.
I suppose it is mobile operator's problem.
What is your full version (settings / about phone / build version) ?
What is your country and mobile carriers?
It`s not a mobile operator problem. I use the same sims on mate 8 and it`s fine. It`s exactly like in your screenshot, sim 1 default mobile data and I lose signal, and I have signal on sim 2. If I select sim 2 default mobile data I lose signal on sim 2 and receive signal on sim 1. So basically I can`t use dual sim and mobile data.
I`m in UK with BT and Lycamobile.
Build version was MHA-L29C432B198 but I`ve tried different things and now I`ve got nrd90m test-keys.
Coscovitul said:
It`s not a mobile operator problem. I use the same sims on mate 8 and it`s fine. It`s exactly like in your screenshot, sim 1 default mobile data and I lose signal, and I have signal on sim 2. If I select sim 2 default mobile data I lose signal on sim 2 and receive signal on sim 1. So basically I can`t use dual sim and mobile data.
I`m in UK with BT and Lycamobile.
Build version was MHA-L29C432B198 but I`ve tried different things and now I`ve got nrd90m test-keys.
Click to expand...
Click to collapse
Agree, C432 region is for UK too. So your bug must not exist, but it is here.
Nrd90m test-keys means that metadata from oeminfo does not match with current ROM.
Did you try to rebrand? If yes, just flash ROM again what you flashed last time.
I`m trying now to rebrand, watching tutorial but I`m stuck at
After device enter TWRP, connect to USB cable.
Press ENTER key to continue...
* server not running *
Coscovitul said:
I`m trying now to rebrand, watching tutorial but I`m stuck at
After device enter TWRP, connect to USB cable.
Press ENTER key to continue...
* server not running *
Click to expand...
Click to collapse
Something blocked adb. Maybe HiSuite. Turn it off, then check that pc recognises device.
adb devices
You can issue to refresh adb
adb kill-server
Phone must be in twrp.
I`ve managed to do all the steps, but after restart I can`t get past the Huawei logo, phone enters in Huawei eRecovery where I have Download latest version and recovery (restore your system with wifi) reboot or shutdown. I`ve tried to restore the system with wifi but I can`t (getting package info failed). I don`t know what went wrong during the process but the phone it`s stuck at huawei erecovery.
So now I`ve managed somehow to update emui to 8.0 and android 8.0 and I have build number MHA-L29 8.0.0.321 (C432log), but the initial problem it`s still there.
I still can`t use mobile data or both sims in the same time. The sim selected to be default mobile data lose signal.
I`ve tried to use 1 sim and sdcard but I don`t have signal because the sim it`s set by default to be mobile data.
Anyone?
Coscovitul said:
So now I`ve managed somehow to update emui to 8.0 and android 8.0 and I have build number MHA-L29 8.0.0.321 (C432log), but the initial problem it`s still there.
I still can`t use mobile data or both sims in the same time. The sim selected to be default mobile data lose signal.
I`ve tried to use 1 sim and sdcard but I don`t have signal because the sim it`s set by default to be mobile data.
Anyone?
Click to expand...
Click to collapse
Seems to be hardware issue. Do you have warranty?
I don`t have warranty. Both sims slots work fine one at the time, not together.
I need 10 posts on the forum so I can upload a screenshot.
Coscovitul said:
I don`t have warranty. Both sims slots work fine one at the time, not together.
I need 10 posts on the forum so I can upload a screenshot.
Click to expand...
Click to collapse
OK. Last thing - try to delete and recreate apn settings.
Don't think that they all incorrect, but maybe one of them...
The Mate9 is active/passive: it's impossible to make a call using sim 1 and using mobile data with sim2 but in stand by you can receive calls on both sim. This limitation is not present on mate8 and mate10.
Piergiorgio
I`ve tried other sims, put new apn and it`s the same.
pgmunzi I can`t because I don`t have signal on one of the sims. In dual sim settings, I need to set sim1 or sim2 to be default mobile data. With sim1 set on default mobile data, I`ve got signal on sim2 and no signal o sim1 (emergency call only), not even to receive. With sim2 set on default mobile data, I`ve got signal on sim1 and no signal on sim 2.
Coscovitul said:
I`ve tried other sims, put new apn and it`s the same.
pgmunzi I can`t because I don`t have signal on one of the sims. In dual sim settings, I need to set sim1 or sim2 to be default mobile data. With sim1 set on default mobile data, I`ve got signal on sim2 and no signal o sim1 (emergency call only), not even to receive. With sim2 set on default mobile data, I`ve got signal on sim1 and no signal on sim 2.
Click to expand...
Click to collapse
You can only have data on SIM1. Both sims can be used for calls and SMS (to my understanding). If you have two SIM cards from the same network it should not be a problem, overall. If you have two different networks (one on each SIM) then you might have some issues.
If you have the SIMS on the same network, and they use the same APN, you might want to copy the settings to two different APN's a label them for SIM1 and SIM2.
Also be careful of what version of OS you use. If you download a version that is originally branded for something else, then expect problems. There are also "Gotcha's" with firmware that is taken from one device and reconfigured to work on your device. Usually this is a matter of rebranding and copying underlying code over. This too causes issues with dual SIM phones. I have found this to be true with my MHA-L29C567. Sadly, I would love to have a memory card under the second sim slot along with a second SIM, but I have yet to figure that one out...
hs4842 said:
You can only have data on SIM1. Both sims can be used for calls and SMS (to my understanding). If you have two SIM cards from the same network it should not be a problem, overall. If you have two different networks (one on each SIM) then you might have some issues.
If you have the SIMS on the same network, and they use the same APN, you might want to copy the settings to two different APN's a label them for SIM1 and SIM2.
Also be careful of what version of OS you use. If you download a version that is originally branded for something else, then expect problems. There are also "Gotcha's" with firmware that is taken from one device and reconfigured to work on your device. Usually this is a matter of rebranding and copying underlying code over. This too causes issues with dual SIM phones. I have found this to be true with my MHA-L29C567. Sadly, I would love to have a memory card under the second sim slot along with a second SIM, but I have yet to figure that one out...
Click to expand...
Click to collapse
Just got the same problem (2 sim cards from same network, only obe working at a time) and thanks to you it's solved. I just had to rename the second APN differently.
I have the same problem. Is it solve? Hv been searching for solution.
Hello guys.. I have the same problem in my mha-l29. Did you solve it?
Coscovitul said:
Hi. I`ve got an MHA-L29 and I`ve got a problem with dual sim settings. In dual sim setting menu if I select default mobile data (4G services associated with default SIM) on SIM 1 then I lose the signal from that sim (Emergency calls only) and I`ve got SIM 2 signal. If I select default mobile data on SIM 2 I lose signal from that sim and I receive signal on SIM1. Basically, I can`t have both sim working (network signal) because I need to set 1 SIM on default mobile data and the one that I set it`s losing signal.
Maybe someone can help me. Thanks
Click to expand...
Click to collapse
hi i just wanna ask if uve solved this, Im currently facing the same problem
my both sim are working fine but some time one sim card not work when i reinsert sim. it does work. so what is the issue?
Hi
I'm working on an app to automatically manage APN settings for my company's sim card.
I got it to work on single sim phones, and on dual sim phones if the sim is in slot 1.
When the sim card is in slot 2, I get an exception stating "No permission to write APN settings"
Has anyone ran into this / has any idea of why the different behaviour from slot1 to slot2?
Thanks.
Hello,
I purchased that phone off eBay since it was listed as Dual sim, the sim tray support Sim+Sim/SD Card, but only has 1 IMEI, so inserting a sim card in the second sim slot, do nothing. I read that dual sim will be enabled with software update, but I updated software to September 1 security patch level, but nothing has changed.
Service provider software version is: SAOMC_SM-A536U1_OYM_XAA_12_0009 XAA/XAA/XAA
Maybe your card faces the wrong direction ? Contacts have to show to the outside.
Check in the settings menu 'connections->sim-card administration' if there is a (greyed out) second sim slot available and look at 'phone info->status information->IMEI-info' if there is a second slot entry with corresponding number just to be sure that there isn't a software issue.
Andoreid said:
Maybe your card faces the wrong direction ? Contacts have to show to the outside.
Check in the settings menu 'connections->sim-card administration' if there is a (greyed out) second sim slot available and look at 'phone info->status information->IMEI-info' if there is a second slot entry with corresponding number just to be sure that there isn't a software issue.
Click to expand...
Click to collapse
No. There is no sim card manager settings. Sim card is inserted correctly, only one IMEI, so that's why 2nd SIM is not working
Expected that all sm-a536 devices support dual-sim. Maybe it's a restriction from your carrier or firmware since you still got the Sim+SD/Sim2 slot. Seems the us variants are a bit cut short with no unlockable bootloader ec..
Helloo!! Any progress on this? IF I install another version like the EU one, would I see the dual sim options? I can be believe the phone is hardware capable but the firmware blocks it
Hi every one !
Anyone has an idea of how to unlock the dualsim capability ? Maybe by flashing a different region/country firmware ?
Thanks !
I just checked for a software update and I got the Android 13 and UI 5 update (near 2GBs) and the dual sim capability was enabled with this update. A second IMEI appears and the 2 sim cards got both signal.
Before installing the update, I took out the SD card and placed a 2nd SIM. Don't know if that had something to do with the dual sim capability enabling.
The Dual Sim Capability is not the same as with other Samsungs. You have no option to set a SIM card as default for calls and text or always ask before making a call, and the other one as default for DATA, only as primary, and the primary is the default for everything. But with the Google phone APP I was able to set the SIM Settings to either one or always ask.
It doesn't have a separate Network Mode for secondary SIM either.
xonyl said:
See
Click to expand...
Click to collapse
Glad I'm not alone in this. It's like pulling teeth with people convincing them there's an unlocked dual-sim us version sm-a536u1 (sm-a536uzkdxaa). Obviously Samsung is little help in this. I've removed the actual IMEI numbers for obvious reasons.
My Tab P11 Plus has been updated to Android 12 recently. The SIM card is detected and shows the mobile provider name on the Wi-Fi and network settings page, but when you tap on it to open the detailed SIM card settings page, nothing happens. I tried a different SIM card and it works ok, the only difference is that the other SIM card doesn't support VoLTE while my original one (that no longer works) supports it. I also tried to remove the PIN from the SIM card and reset all the network settings.
The SIM card works ok in other devices.
Is there anything I can do via the adb, to delete all the SIM card related data? I don't want to do a complete reset, as it takes almost a week to setup evetyhing from the scratch again. Thank you.