Redmi Note 4 / Note 4x Snapdragon has provided an updated update 9.5.8.0, there is no heating issue. 9.5.4.0, the phone is hot enough to turn on the net, but this update has been fixed, battery backup is unstable, Josh , Draining Problem. Price 9.5.4.0 and 9.5.8.0 Updated, fixing the bug that was 9.5.4.0, it has been fixed, it is nightly so everyone will not get. Many updates have come again, those who are not paying for updates Manually, without tension. There will be no problem. 
I played Calling + Youtube + Gangster Games (High grapchis1.4gb) in all time data + emo in 4G data, but still 10%
I got 1 hour and 14 minutes (to get even more at 3g). If there was no word on Wifi, I could get back the lost text, easily 10 hour + Screen on time with the data, and Wifi, so that people with battery backup They are worried and they give it to Nishchinte.
[B: Update gives different perfomance to each other's mobile, one gets a very good backup in that version, and another one gets worse in the same version, depending on the power of your mobile battery]
Download the ROM: dot http://bigota.d.miui.com/V9.5.8.0.NCFMIFA/miui_HMNote4XGlobal_V9.5.8.0.NCFMIFA_30495e599d_7.0.zip
[Dot cut]
[Do not download with UC Browser, Use Default Browser on Chrome or Mobile] 
Manual update rules: Settings> About Phone> System Update> On the top right
Click on 3 dots> Choose Update Package> Select the folder that is downloading the ROM. Then decrypting it, 100% if you want to reboot, then the phone will do it alone, you just keep the phone. Speed Internet. Update will not leave anything or delete, all will be there, if the update is finished, then you will be able to reset the phone with the important file backup, then the previous version will have a problem in this version of the file or this version.