Question No network connection after miui update ! - Redmi 9 Power / 9T

HI, Please, i need some help!!!!
I have a redmi 9t for arround 6 mounth ==> all fine untill miui update==>after update no network connection,
tried everything i could find to solve it, but no luck, now i want to root my device to trie to fix my connection but
to do i need to unlock my fhone in dev options Mi unlock status, but to do i need to have network connection and i only have wifi, please , any options for me?
kind regards,
Kenny G.

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Wifi Problems PRG's

Hi everybody, may when you change ROM in your cell, some time WIFI problem will appears.
I am sure you can fine all WIFI problem solve programs in this forum, but if don't get positive result, maybe i can help.
Only post.
wifi problem
marco1962 said:
Hi everybody, may when you change ROM in your cell, some time WIFI problem will appears.
I am sure you can fine all WIFI problem solve programs in this forum, but if don't get positive result, maybe i can help.
Only post.[/QUOTE
I have same problem, i install 2 different ROM but both had same problem. my wifi turned on but dont find any signal!!
i was installed the Rom again & again but the problem was not solved. i unlocked my cell with htcdev, using bootlooder .28 and using cwm v6
Click to expand...
Click to collapse
Try searching for WiFix Manager, install it, tick advanced then type EU or CN finally hit change code.
You must be Rooted of course.

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My phone yesterday suddenly began to fail connect by wifi, i get the message «Failed to save network» and «Failed to connect Network».
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I have problem with activating volte service in my redmi note 9 phone .
I did everything include resetting network settings, reset factory, wipe data, ... .
The option is available but it's not showing on top of phone and not enable to use it .
Is reinstalling rom make this problem solved ?!
Is this problem is some kind of bug ??
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I upgrade it to 12.5.4 firmware and nothing change at all , problem still exist . (((
alirezaimi said:
I upgrade it to 12.5.4 firmware and nothing change at all , problem still exist . (((
Click to expand...
Click to collapse
I think the problem is with your carrier service provider. Sometime they don't support volte
@Manjotbenipal I change some settings that find in internet pages, and for sim 1 is ok now !
but for sim2 volte option not work at all !

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