IMEI SV unknown - no phone calls

[sky|ined]

I received my new Redmi 3S yesterday. It can send and receive SMS, internet is working, it identifies the SIM, the carrier and the number. But it doesn't make or receive phone calls and calling settings/features cannot be accessed.

I tried a factory reset, removed the SIM and reinstalled it a couple of times. Phone is not rooted, bootloader is locked, ROM is MIUI Global 7.3 STABLE | 7.3.10.0.0 (MALCNDE). Any help appreciated

Edit: I should mention that I tried more than one sim cards that function properly on a another device I have

edit 2 : Here is the problem http://i64.tinypic.com/xeq68y.jpg

 

[sky|ined]

I discovered that I am able to make calls from SIM 2 slot (nano SIM / SD card) but not from SIM 1 (micro SIM). Any idea why? Anyone? The big deal is that by using SIM 2 slot I am not able to use my SD card

 

[jokerpappu]

I discovered that I am able to make calls from SIM 2 slot (nano SIM / SD card) but not from SIM 1 (micro SIM). Any idea why? Anyone? The big deal is that by using SIM 2 slot I am not able to use my SD card

why dont you try to flash a stock rom with full wipes and see if that solves your problem of making/receiving calls.

 

[sky|ined]

Thanks. I will give it a go. I really don't want to send my newly arrived phone back to China

 

[sky|ined]

Installed stable Chinese 7.5 ROM and the problem still persists. After all the effort I just noticed that under settings>>>status>>>SIM status there are two differences between SIM 1 and SIM 2. 1 has cellular network type LTE, 2 has GSM (both SIM cards are LTE). 1 has IMEI SV unknown, 2 has 01. I suspect the lack of IMEI SV number is the reason why SIM 1 cannot make/receive calls. Both SIM slots have an IMEI number. So now I need to find a way to root ( I am having some trouble there too) and inspect further.

 

[sky|ined]

Help!!!!!!

I really need some help now.

1. I was trying to unlock bootloader but always got stuck at 50%. Nevertheless, in cmd*"fastboot oem device-info"*the bootloader appears to be unlocked but security app/permissions/root says it is locked. Now even flash unlock utility says "no need to unlock device" when stops at 50%. Which one is telling the truth?

2. Tried to flash twrp, followed the procedure to the letter, the utility told me that the flash was successful. But when I reboot to recovery all I see is the white outline of a device, no TWRP

3. SIM 1 can send/receive texts and connects to internet but no incoming/outgoing calls. SIM 2 working fine

4. Mi PC Suite does not recognise the device


I've bought Chinese phones before but this one is just too much work..

 

[Mikami15]

Did you use mi unlocker tool?
Did you allow oem unlock on developer options?
You have to login with your mi id both on your phone and that tool.
Once unlocked, follow these instructions for TWRP http://forum.xda-developers.com/redmi-3/development/redmi-3s-land-twrp-recovery-unlocked-t3433199

Sent from my ehmm... well... phone with xdw... cda... err... well I sent it, okay?

 

[sky|ined]

Yes. I have use mi unlock tool and followed the proper procedure. I will try the above method on Sunday, when I have free time, and fingers crossed..

 

[Feriol]

Regarding your sim problems...

In settings > about phone: press 'internal memory' a number of times to get the hidden menu. 'Phone information1' refers to sim 1 and you can change network types etc.

 

[sky|ined]

Regarding your sim problems...

In settings > about phone: press 'internal memory' a number of times to get the hidden menu. 'Phone information1' refers to sim 1 and you can change network types etc.

I tried all the settings one by one but nothing has changed. Finally I managed to unlock bootloader and root but the no calls problem from SIM 1 persists. I found this http://en.miui.com/thread-245598-1-1.html for IMEI repair, I would like to repair the IMEI SV in similar way. If someone can help with this or has any idea why SIM 1 sendss/receives texts and connects to internet but doesn't make/receive any calls I will be much obliged.

 

[sky|ined]

So basically this is the problem

http://i64.tinypic.com/xeq68y.jpg

 

[shinnc7]

My redmi 3s got the same imei sv (slot1) unknown,but i don't have any problem making/receiving calls, internet connection,etc.so this little worry me.hope you can solve your problem quickly op.

Sent from my Redmi 3S using Tapatalk

 

[sky|ined]

That's interesting. So maybe the problem is not with the IMEI SV number. It may as well be a hardware problem. I don't think you have something to worry about. Thanks for letting me know though

 

[framdhan]

So basically this is the problem

I've got same problem, the sim which imei sv has unknown cant making call/text..please help..and share if your problem was solved. thx.

---------- Post added at 04:23 PM ---------- Previous post was at 04:18 PM ----------

My redmi 3s got the same imei sv (slot1) unknown,but i don't have any problem making/receiving calls, internet connection,etc.so this little worry me.hope you can solve your problem quickly op.

Sent from my Redmi 3S using Tapatalk

whether it's work for both sim? why i cant.. :crying::crying:

 

[sky|ined]

Sorry haven't solved the problem. I got a partial refund and only using one SIM slot