How to install clean android on REDMI 4 [Prada] - Android Q&A, Help & Troubleshooting

Hello, i'm new user on this forums. I have very big problem with my device.
I got second model of Redmi 4, first one had malfunction of SIM module (after instaling CM 13), and device wasnt detecting SIM's at all (what more interesting SD cards was detected) on both slots. After service i got brand new Redmi 4, installed CyanogenMod 13 as only properly working OS* and starting to have the same issue.
*So now let me explain why i threat CM 13 as only working OS - it uses battery as it should. On every MIUI (which seems to not be official) including MIUI 9 my battery just drain. For example with 1-2 hours of daily usage on CM my battery can keep 7-14 days, which is perfect resoult, while on MIUI even unused device is keeping max 4 days, and battery usage says Android OS and android (process names) eat 40 % of battery (sometimes up to 56%). I'm installing OS by full wipe, so its not the case of files remaining from older OS.
NOW final question to all specialists here - from where can i get CELAN ANDROID MARSHMALOW or NOUGAT for my model (Redmi 4 prada)? Installation as i understand properly is the same as in case of ROM right (TWRP) or maybe flash?
Please answear, i'm looking over internet 2 months right now, and spending all my free time after job on unsuccessfull searching for help.

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hi
my friend own redmi note 9 pro
and have 'known' issue of random phone reboots during calls - like at least once a week during call his phone reboots itself
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thanks and regards !
It happened to me that my RN9P joyeuse restarted several times during a phone call or just while using it. The problem was fixed for me during the update (I think miui 12.5). It was probably a software bug when the phone tried to switch between LTE and another network which caused a restart. I am currently using the ForkLineageOS custom rom on android 12 and there are no reboot issues, previously i used lineageOS and pixel experience on android 11 and there were no problems either.
uvzen said:
It happened to me that my RN9P joyeuse restarted several times during a phone call or just while using it. The problem was fixed for me during the update (I think miui 12.5). It was probably a software bug when the phone tried to switch between LTE and another network which caused a restart. I am currently using the ForkLineageOS custom rom on android 12 and there are no reboot issues, previously i used lineageOS and pixel experience on android 11 and there were no problems either.
Click to expand...
Click to collapse
Can you review lineageOS for me?, is it good?, stable, and how to install it
not on rn9pro but on my redmi 9 everytime I try to call "*143#" my phone just magically reboots, and also the reboot persists too when I try to maxxed out the volume.

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