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Julianobelleti · 14-04-2018, 04:36 PM

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

**X3non** · 14-04-2018, 06:06 PM

(14-04-2018, 04:36 PM)Julianobelleti Wrote: 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 · 14-04-2018, 07:16 PM

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

Julianobelleti · 14-04-2018, 07:19 PM

(14-04-2018, 06:06 PM)X3non Wrote:
(14-04-2018, 04:36 PM)Julianobelleti Wrote: 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 · 15-04-2018, 11:20 AM

(14-04-2018, 07:19 PM)Julianobelleti Wrote:
(14-04-2018, 06:06 PM)X3non Wrote:
(14-04-2018, 04:36 PM)Julianobelleti Wrote: 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 · 16-04-2018, 06:49 AM

(15-04-2018, 11:20 AM)innagee Wrote:
(14-04-2018, 07:19 PM)Julianobelleti Wrote:
(14-04-2018, 06:06 PM)X3non Wrote:
(14-04-2018, 04:36 PM)Julianobelleti Wrote: 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*** · 16-04-2018, 11:07 AM

(16-04-2018, 06:49 AM)Julianobelleti Wrote: 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)

Julianobelleti · 17-04-2018, 05:41 PM

(16-04-2018, 11:07 AM)hovatek Wrote:
(16-04-2018, 06:49 AM)Julianobelleti Wrote: 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*** · (This post was last modified: 18-04-2018, 09:35 AM by hovatek.)

(17-04-2018, 05:41 PM)Julianobelleti Wrote: 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

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