SIM slot lock - LineageOS Questions & Answers

Hi,
I need help, I like yo lock the SIM slot number 2 with lineageos 15. I think that rild service is the solution.
I changed the service configuration in the system file init.qcom.rc but when the phone starts if only detect one IMEI the data connection of sim 1 dont start.
Can anyone help me?

Related

[Q] UMTS Network not accessible

Hi to all,
I've a problem with my Samsung Wave + my SIM (Vodafone).
I'm unable to register SIM in UMTS network of my operator but I can register correctly SIM in GSM network.
In service menu (#*197328640#) in idle SIM shows LIMITED SERVICE as message.
On NAS status it seems that PS attach is rejected with cause 0x6f.
My operator has tried to reset my SIM and substitute it with another but without success.
Problem is independent of cell. My SIM in another phone registers correctly in UMTS and in my phone another SIM of my operator works correctly.
It seems that only the combination of my phone (IMEI?) + my SIM (IMSI?) is unable to attach on UMTS network.
Phone is NOT SIM/Operator locked.
I've done a full reset of EEPROM (*2767*3585#) without success.
I've also reflashed with multiloader AMSS and other parts of fw related to WCDMA and RF, but still the same problem.
Integrity and Ciphering in service menu are [ON] so I exclude problem related to them.
I've started inspecting phone with QPST and RevSkills but I don't know NVItem mapping of Wave.
Someone had a similar problem and has found a solution?
TIA

not registred on network gt-p5220

hi aa freind offer me a tablet gt-p5220 4g , he give it to me because sim not work
i try to fix it when i try to tape any call or eveen command as *#7455625# or any other command i got error not registred on network the only one work is *#06#
when i go to setting other setting mobile network it wont access it asks insert sim card even the sim is there so other tablet can access in mobile network without sim
i find some code to see if the tablet is locked but all code not pass (not registred on network) i google it some say to go to setting mobile network and choose manual operator but it wont access in this mobile network menu it asks insert sim card to enter network services
other thing wheni scroll top menu in the bottom wrote emergency call only
i remove sim put ti again asks reboot to reconize sim after reboot no sim icon in the buttom
any help or suggestions will be really appreciated
big thanx in advance

Sim Slot 1 carrier unknown

Hi,
In my Sim Slot 1 it shows Carrier unknown and i don't know if there's a fix to show the name of the Carrier.
Anyone knows?
Thx.

[resolved]Missing IMEI number of Second SIM slot

Hello all
I'm using a Redmi Note 8 pro with the latest Android 10 update.
I was having network issues so I entered into test mode and just ran ping test a couple of times.
Then the page said that in order to change the settings you must reboot and I did. After that my phone stopped showing the second SIM card.
I went to test mode again but phone information 2 was missing.
I checked my IMEI number from the dialer by entering *#06#
I can see only one IMEI number being displayed, the IMEI number of the second SIM slot is missing.
I tried to input it manually using MTK Enginner mode but the CDS information option under connectivity settings is missing.
I've not rooted the phone or ever unlocked the bootloader
Below are a few screenshots.
I'm in a very terrible condition as service centres near me are all closed due to Covid 19 lockdown
Can anyone help me out regarding this problem and tell me a fix ???
IMEI : https://drive.google.com/file/d/1Hhya6vVdH5VjY2OVV2XUyXMex7Nt6-cV/view?usp=drivesdk
Software Information (IMEI) : https://drive.google.com/file/d/1HdVmd82XER7KZ2KbTbOt42a_TqLH0Gft/view?usp=drivesdk
Testing mode settings : https://drive.google.com/file/d/1HsTb7fsyPCWLr2C4eeVwhp1ya811a32t/view?usp=drivesdk
A factory data reset did the job and the phone now shows both SIM cards.
Everything running perfect now
Aka$h2002 said:
Hello all
I'm using a Redmi Note 8 pro with the latest Android 10 update.
I was having network issues so I entered into test mode and just ran ping test a couple of times.
Then the page said that in order to change the settings you must reboot and I did. After that my phone stopped showing the second SIM card.
I went to test mode again but phone information 2 was missing.
I checked my IMEI number from the dialer by entering *#06#
I can see only one IMEI number being displayed, the IMEI number of the second SIM slot is missing.
I tried to input it manually using MTK Enginner mode but the CDS information option under connectivity settings is missing.
I've not rooted the phone or ever unlocked the bootloader
Below are a few screenshots.
I'm in a very terrible condition as service centres near me are all closed due to Covid 19 lockdown
Can anyone help me out regarding this problem and tell me a fix ???
IMEI : https://drive.google.com/file/d/1Hhya6vVdH5VjY2OVV2XUyXMex7Nt6-cV/view?usp=drivesdk
Software Information (IMEI) : https://drive.google.com/file/d/1HdVmd82XER7KZ2KbTbOt42a_TqLH0Gft/view?usp=drivesdk
Testing mode settings : https://drive.google.com/file/d/1HsTb7fsyPCWLr2C4eeVwhp1ya811a32t/view?usp=drivesdk
Click to expand...
Click to collapse
The exact same problem please help me to fix . I havent reset it yet . Is there any other ways to solve this same problem please
Help me
Exact same problem for me also
I'm using a Redmi Note 8 pro with the latest Android 10 update.
I was having network issues so I entered into test mode and just ran ping test a couple of times.
Then the page said that in order to change the settings you must reboot and I did. After that my phone stopped showing the second SIM card.
I went to test mode again but phone information 2 was missing.
I checked my IMEI number from the dialer by entering *#06#
I can see only one IMEI number being displayed, the IMEI number of the second SIM slot is missing.
I tried to input it manually using MTK Enginner mode but the CDS information option under connectivity settings is missing.
I've not rooted the phone or ever unlocked the bootloader
Below are a few screenshots.
I'm in a very terrible condition as service centres near me are all closed due to Covid 19 lockdown
Can anyone help me out regarding this problem and tell me a fix ???
Aka$h2002 said:
Hello all
I'm using a Redmi Note 8 pro with the latest Android 10 update.
I was having network issues so I entered into test mode and just ran ping test a couple of times.
Then the page said that in order to change the settings you must reboot and I did. After that my phone stopped showing the second SIM card.
I went to test mode again but phone information 2 was missing.
I checked my IMEI number from the dialer by entering *#06#
I can see only one IMEI number being displayed, the IMEI number of the second SIM slot is missing.
I tried to input it manually using MTK Enginner mode but the CDS information option under connectivity settings is missing.
I've not rooted the phone or ever unlocked the bootloader
Below are a few screenshots.
I'm in a very terrible condition as service centres near me are all closed due to Covid 19 lockdown
Can anyone help me out regarding this problem and tell me a fix ???
IMEI : https://drive.google.com/file/d/1Hhya6vVdH5VjY2OVV2XUyXMex7Nt6-cV/view?usp=drivesdk
Software Information (IMEI) : https://drive.google.com/file/d/1HdVmd82XER7KZ2KbTbOt42a_TqLH0Gft/view?usp=drivesdk
Testing mode settings : https://drive.google.com/file/d/1HsTb7fsyPCWLr2C4eeVwhp1ya811a32t/view?usp=drivesdk
Click to expand...
Click to collapse
Same problem...
I dialed *#*#4636#*#*
Tested run ping.. And another settings...rebooted phone...
My 2nd sim slot imei was missing..
Help
Aka$h2002 said:
A factory data reset did the job and the phone now shows both SIM cards.
Everything running perfect now
Click to expand...
Click to collapse
It actually works

after flashing mi a2 lite mobile data not working in one sim

hello,
some days ago i flash my mobile with fastboot then i realise that sim card slot changed.
sim slot no. 1 is now 2 and sim slot 2 is now 1
after automatic update on android 10 latest version but sim 1 data connection not working..when i turn it on no cellular symbol show.
i tried correct APN setting, reset network setting, factory reset but still not working data connection in only sim 1.
sim 2 work well.
after that i decide to downgrade for android 9 and continue vai fastboot..then finally its work ..sim 1 and 2 both date connection work but sim slot problem not fix..
my question is how to solv sim slot exchange problem and android 10 one sim data not working problem.
thanks.
kaemon25 said:
sim slot no. 1 is now 2 and sim slot 2 is now 1
but sim 1 data connection not working..when i turn it on no cellular symbol show.
Click to expand...
Click to collapse
Swapped sim slots sounds like what happens when downgrading to Oreo. The fix for that is to use a newer (pie) modem partition.
https://forum.xda-developers.com/mi-a2-lite/help/sim-card-issue-downgrading-pie-9-0-t3874350
I see a more recent thread complaining that sim 2 does not work. I only use sim 1 and it works for me.
Did you try turning the phone off (not just sleep or reboot)? My data connection almost always dies when I install an OTA (probably TWRP). Turning the phone off and sometimes leaving it in airplane mode for an hour fixes it.
In my case, the network is rejecting data connections (call and sms works). This was not in the regular logcat...
adb logcat -b radio

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