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[Please help] My SIM 1 is not working

[Please help] My SIM 1 is not working

Julianobelleti
Julianobelleti
Julianobelleti
Enthusiastic Member
5
14-04-2018, 04:36 PM
#1



I have an issue with my redmi note 4 global version (SD variant). I used an app, hidden android settings to try and tweak the band mode of the phone. This caused my SIM 1 to stop functioning so I tried to flashing it with fastboot ROM. Now the phone detects the SIM card, signal also but I can't make/receive calls and can't dial ussd codes. Please is there anyone that can proffer a solution to this? Thanks
hovatek
hovatek
hovatek
Administrator
49,612
14-04-2018, 06:06 PM
#2
(14-04-2018, 04:36 PM)Julianobelleti I have an issue with my redmi note 4 global version (SD variant). I used an app, hidden android settings to try and tweak the band mode of the phone. This caused my SIM 1 to stop functioning so I tried to flashing it with fastboot ROM. Now the phone detects the SIM card, signal also but I can't make/receive calls and can't dial ussd codes. Please is there anyone that can proffer a solution to this? Thanks

are you able to make and receive calls with sim 2?
whats the chipset of this model?
Julianobelleti
Julianobelleti
Julianobelleti
Enthusiastic Member
5
14-04-2018, 07:16 PM
#3
Yes I can make calls with SIM 2. My chipset is Snapdragon.
Julianobelleti
Julianobelleti
Julianobelleti
Enthusiastic Member
5
14-04-2018, 07:19 PM
#4
(14-04-2018, 06:06 PM)X3non
(14-04-2018, 04:36 PM)Julianobelleti I have an issue with my redmi note 4 global version (SD variant). I used an app, hidden android settings to try and tweak the band mode of the phone. This caused my SIM 1 to stop functioning so I tried to flashing it with fastboot ROM. Now the phone detects the SIM card, signal also but I can't make/receive calls and can't dial ussd codes. Please is there anyone that can proffer a solution to this? Thanks

are you able to make and receive calls with sim 2?
whats the chipset of this model?

Yes I can make calls with SIM 2. My chipset is Snapdragon.
xerxes
xerxes
xerxes
Senior Member
8,357
15-04-2018, 11:20 AM
#5



(14-04-2018, 07:19 PM)Julianobelleti
(14-04-2018, 06:06 PM)X3non
(14-04-2018, 04:36 PM)Julianobelleti I have an issue with my redmi note 4 global version (SD variant). I used an app, hidden android settings to try and tweak the band mode of the phone. This caused my SIM 1 to stop functioning so I tried to flashing it with fastboot ROM. Now the phone detects the SIM card, signal also but I can't make/receive calls and can't dial ussd codes. Please is there anyone that can proffer a solution to this? Thanks

are you able to make and receive calls with sim 2?
whats the chipset of this model?

Yes I can make calls with SIM 2. My chipset is Snapdragon.

Did you try factory reset?
Julianobelleti
Julianobelleti
Julianobelleti
Enthusiastic Member
5
16-04-2018, 06:49 AM
#6
(15-04-2018, 11:20 AM)innagee
(14-04-2018, 07:19 PM)Julianobelleti
(14-04-2018, 06:06 PM)X3non
(14-04-2018, 04:36 PM)Julianobelleti I have an issue with my redmi note 4 global version (SD variant). I used an app, hidden android settings to try and tweak the band mode of the phone. This caused my SIM 1 to stop functioning so I tried to flashing it with fastboot ROM. Now the phone detects the SIM card, signal also but I can't make/receive calls and can't dial ussd codes. Please is there anyone that can proffer a solution to this? Thanks

are you able to make and receive calls with sim 2?
whats the chipset of this model?

Yes I can make calls with SIM 2. My chipset is Snapdragon.

Did you try factory reset?

Yes I have.
hovatek
hovatek
hovatek
Administrator
49,612
16-04-2018, 11:07 AM
#7
(16-04-2018, 06:49 AM)Julianobelleti Yes I have.

Try this
1. Ensure your phone has valid IMEI
2. Enter Engineer menu and change network settings for SIM 1 to GSM/WSDMA (auto)

Note!
We have a reply schedule for Free Support. Please upgrade to Private Support if you can't wait.
Julianobelleti
Julianobelleti
Julianobelleti
Enthusiastic Member
5
17-04-2018, 05:41 PM
#8
(16-04-2018, 11:07 AM)hovatek
(16-04-2018, 06:49 AM)Julianobelleti Yes I have.

Try this
1. Ensure your phone has valid IMEI
2. Enter Engineer menu and change network settings for SIM 1 to GSM/WSDMA (auto)

I have tried these too but nothing changed
hovatek
hovatek
hovatek
Administrator
49,612
18-04-2018, 09:24 AM
#9
(17-04-2018, 05:41 PM)Julianobelleti I have tried these too but nothing changed

reflashing the right QCN should resolve this. Have you tried searching for one (for your model) or can get access to a working phone of the same model?
Found this http://forum.gsmdevelopers.com/xiaomi-no...-file.html
* Ensure to backup your QCN before flashing any other
This post was last modified: 18-04-2018, 09:35 AM by hovatek.

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