Calling & Receiving problems in Mi MAX - Xiaomi Mi Max Questions & Answers

I am unable to make or receive calls using jio sim on mi max in both slot 1 and slot 2. Vodofone sim works well in both slots. kindly help resolve the problem

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Zenfone2 ZE551ML - Sim card issue with CM13

Hello,
Currently i am running the latest version of CM13 (cm-13.0-20160307-UNOFFICIAL-Z00A.zip ) on my phone, but this issue also occured with the other versions starting from the 1st of march.
With 2 sims inserted in my phone, both of these sim cards work fine when i put them separately in the phone, however when i put them both in some weird issues occur.
The problems start when booting my phone, the phone asks me to enter the PIN for sim 1, which works and connects the card to the network ( and fetches my latest messages and such )
Then the phone obviously asks me for the PIN of my second sim, which it accepts. However after accepting my SIM the same popup comes up asking me for my PIN for sim2 again.
And when entering the PIN it gives me the error : "SIM PIN operation failed".
After multiple attempts, it finally gets me in the phone. However the data on SIM1 is not functioning anymore.
What i've tried is:
Multiple different CM releases from the past week
Putting my phone in airplane mode and out again
Factory reset the phone
Does anyone know how to fix this issue?

Data Sim switch not working in terminal or shell

Hi,
I'm using a sim in slot 2 just for data when I'm abroad (chatsim). I tried making a tasker profile which would switch data to sim2 when sim1 is roaming.
I've tried using a root shell command "settings put global multi_sim_data_call 2" and it does switch the data to sim 2 in the settings but actually nothing happens further.
The data is still on sim 1.
Does anyone know how to activate it? Maybe a command to restart the RIL?
Thanks for any help
Have the same problem ?
Any news on that?
Ketelbinie971 said:
Hi,
I'm using a sim in slot 2 just for data when I'm abroad (chatsim). I tried making a tasker profile which would switch data to sim2 when sim1 is roaming.
I've tried using a root shell command "settings put global multi_sim_data_call 2" and it does switch the data to sim 2 in the settings but actually nothing happens further.
The data is still on sim 1.
Does anyone know how to activate it? Maybe a command to restart the RIL?
Thanks for any help
Click to expand...
Click to collapse
Hi, this might be late but try changing SElinux from forced to permissive. It should solve the problem

Device doesn't connect to mobile network

I was on PixelExperience (latest) and yesterday flashed through Magisk 17.0 and 17.1. Today morning device couldn't connect to mobile network at all (2G/3G/4G/LTE). Wiped it completely, flashed latest dev firmware and Nitrogen OS + unofficial Gapps for Android Pie. Everything works quite smooth, but still my device can't connect to mobile carrier - any ideas what I can try? It's crucial for me to fix it today since I need to be able to send/receive SMS tomorrow.
Tried switching sim slots?
Just to see if the sim card works with the other slot.
Does an IMEI number show for both slots under settings - about? (Don't tell us your IMEI)
Are you sure your network provider hasn't cut you off by mistake or some other weird account based issue?
Try another sim if you can get one.
A pay as you go sim without credit should still show a connection even if you can't use it
Yeah, I did try.
1. Tried other card (got polish Orange card which connects to EE, UK EE card - both work in my brother's SGS6).
2. IMEI is okay, don't know if IMEI SV should be 00 though.
3. Cards work okay in SGS6.
99% it's software issue - I've used Magisk modules to widen Wi-fi bands and other modules - I did format all partitions and flashed latest stable Global MIUI through fastboot though and it should override all the settings. I've used the *#*# code and I can't pass the test.

SIM slot lock

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?

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.
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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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