Poco F1 After 11.0.9 update(Not MiUi12) dialer not opening. - Xiaomi Poco F1 Questions & Answers

Apologies guys as this may be a very small problem with very small solution but somehow I spent over an hour trying to make it work but I couldn't. This phone is on stock MiUi and even the bootloader is not unlocked. Elaboration:
1. Before update dialer functioned okay, I had restricted maybe one or two permissions like Location but still it worked.
2. After Update I got to know google had my location history 'on' so being a privacy freak I turned it 'off' (I know they can still get the location, but atleast not where I was 6months ago now).
3. I didn't find any other issue post update but I hadn't tried to open dialer yet;
When I tried it said required permission has been not allowed and it just wouldn't open. Sms app worked fine, contacts and dialer didn't.
4. Them I tried giving the 'contacts & dialer' app all the permissions it required via the settings ->apps-> Contacts & dialers -> permissions, including the location which is I haven't allowed on my other Poco F1(yes I have 3 at home, all purchased before COVID time) and the same update was already on that phone and it works fine.
For now I have a third party dialer app installed which does the work, it would be very helpful if someone could help me getting the original dialer to work. And yes I know Mi sucks with things like this and bloatware I might install Lineage or something in months to come but this belongs to my father he might not want his phone to be unable to operate banking apps and wallets so on hold for now.
Thanks already guys.

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Not sure but try to clear all data of the "contacts and dialer" app first (Settings -> apps -> manage apps -> contacts and dialer).
If it doesn't work then I suggest you re-download the latest update and install it again. (Settings -> about phone -> system update -> the three dots menu -> download latest package).
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Go to "menage apps" -> "phone services" and force stop it. Then Open "storage" and clear the data.. Then do the same in "call manager" (i think thats the name in inglish). The 2 apps haver a phone símbolo. Then restart you Poco F1. Turn it completly off and turn ir on again.
Worked with me..

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You have disabled a required permission. Tried what both of you suggested above except for reinstalling the update. Not resolved

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OsGhaly said:
Not sure but try to clear all data of the "contacts and dialer" app first (Settings -> apps -> manage apps -> contacts and dialer).
If it doesn't work then I suggest you re-download the latest update and install it again. (Settings -> about phone -> system update -> the three dots menu -> download latest package).
Click to expand...
Click to collapse
Didn't work, but I'm a little sceptical about download latest package and installing, never done it before so. I tried the other solution you have but didn't solve the problem.

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SmaxTRex said:
Didn't work, but I'm a little sceptical about download latest package and installing, never done it before so. I tried the other solution you have but didn't solve the problem.
Click to expand...
Click to collapse
First of all downloading the latest package is just the same as installing a normal update, no difference at all.
Second, I think to avoid all this hassle; you might need to do factory default/factory reset.. But of course before doing that you have to write down all your accounts login data (especially Mi account and Google account) and also backing up your personal data (photos, docs, music, videos downloads,...etc.) as it will be deleted when you do this factory reset.. But this will eventually solve all these problems.
Sent from my POCOPHONE F1 using Tapatalk

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OsGhaly said:
First of all downloading the latest package is just the same as installing a normal update, no difference at all.
Second, I think to avoid all this hassle; you might need to do factory default/factory reset.. But of course before doing that you have to write down all your accounts login data (especially Mi account and Google account) and also backing up your personal data (photos, docs, music, videos downloads,...etc.) as it will be deleted when you do this factory reset.. But this will eventually solve all these problems.
Click to expand...
Click to collapse
I was hoping to avoid Factory Reset, and all the efforts and time associated with doing it but I'm being sure by the days that pass, of there being no other alternative for me. I'm so fed up of Xiaomi after this. Once a stable Lineage or PE comes after MiUi 12 upgrade I'll lose no time to this. Also out of 4 phones in my home 3 are Poco F1 and the last one was Lenovo zuk till Feb and Vivo since, but non Mi phone doesn't get as many ads on YT and Instagram (virtually none on insta when I get one ad every 10-15posts, despite of having not allowed similar permission to Mi during setting up of my phone).

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So I spent good time backing up and reloading after factory reset. The problem is solved costing me alot of time and effort for backup and stuff.
So basically problem solved by a factory reset.