Xiaomi Mi 9
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Xiaomi Mi 9

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Cons: battery life and CCP infested miui version. (MIUI 9 was awesome, but the ccp mandates made the newer os suck as bad as android.) I miss the stereo speaker and larger screen of the Mi Max too. Lacks an SD card, so I filled up the 128 gig drive in the first year, and had to do a hard reset. Crappy glued in/expensive to replace battery, which allows the Government to track and listen to us, even when the phone is off. The MIUI has gone way down hill since 2019, and blatantly tracks users and uses more battery.

Pros: It is a hair faster than my MiMax, but not significantly. It has more at&t bands than the MiMax, but all the T-mobile bands are still lacking.

The phone is fast, but battery life is pathetic. Also, the miui no longer can prevent apps from running in the background, even as the built in zombie tracking apps grow by the month.

I can't say enough good things about my former Xiami MiMax with the MIUI 9, 2019. My xiaomi MiMax with the older miui 9 could do the same stuff and get from 5 am to 7 pm, 14 hours. This phone battery lasts until noon, like all other android phones. Unfortunately the mi max was too thin without extra support to compensate, and it cracked in my pocke; it lacked a band too which the mi 9 has (so some dead AT&T data streets in my city, which the Mi 9 covers). Otherwise, I would say the xiami mi max was the only 5 star phone out of the 35 smart phones I have owned since 2012.

I use my phone constantly off the charger and in the field, far from a charger, starting at 5 am: calls, getting information off web, taking pictures, constantly entering calendar entries, streaming audio. So, I must put my mi 9 phone on a 40 minute quick charge to get 50% 2 times per day to get to 10 pm. I had to buy a graphene rapid charger to achieve this.

The location constantly turns itself on, which can drain the battery out in 3 hours. Also, the battery use when recording video is brutal. Not so great snapping photos on the battery.
The screen drains the battery pretty quick, which is not the fault of Xiaomi. In general rooting is forbidden to let governments track the user. This is an android problem in general, and less a xiaomi problem, except for the new, obvious ccp mandates that have crippled user control in the last 2 years.

Xiaomi does still have a built in background 3rd party app killer, which gives xiaomi a leg up over other android phone for battery life. So, I am hesitant to buy a non xiaomi phone. But the battery savings is not nearly as great as with the older, less ccp infested, miui.

I blame the ccp, not xiaomi, because battery management used to be the goal of xiaomi, as well as user ownership and control of their own phone. I also know some of the new govt mandates.

    Hanif Fikri, 06 Aug 2021i flashed pixel experience android 11 rom but auto rotation... morethe problem is maybe in persist.img. maybe u wiped persist partition. i experienced the same but i bought mine from others.i tried every solution i found in the internet but it seems to not work out.
    and if u have the same problem as i have, your proximity, accelerometer and gyroscope sensorr might not working as well.

      Anonymous, 05 Oct 2021Thank you very much!! It worked, my mi9 is now on Android 1... moreYour welcome :) .. greetings from Lebanon 🇱🇧

        • ?
        • Anonymous
        • sr$
        • 05 Oct 2021

        Abdel., 26 Sep 2021Try to update manually via recovery mode .. download the sa... moreThank you very much!! It worked, my mi9 is now on Android 11, miui 12.5 thankssss.. Greetings from Bosnia🇧🇦

          • 2
          • 2021
          • JFm
          • 04 Oct 2021

          Anonymous, 03 Oct 2021True I've been using mine for almost 2 years now and a... moreTxh for reply :)

            • 2
            • 2021
            • JFm
            • 04 Oct 2021

            zenshi, 01 Oct 2021Yes, it's a great phone, been using mine since back wh... moreThx. I'm worried about battery, but probably will try it. It's not too expensive :)

              • A
              • Anonymous
              • NvU
              • 03 Oct 2021

              zenshi, 01 Oct 2021Yes, it's a great phone, been using mine since back wh... moreTrue I've been using mine for almost 2 years now and apart from battery life which is slightly below today's standards the phone's awesome... handles everything you throw at it without a glitch... will definitely keep it for at least another year before upgrading

                • ?
                • Anonymous
                • 6tK
                • 01 Oct 2021

                Abdel., 26 Sep 2021Try to update manually via recovery mode .. download the sa... moreMy phone is 12.0.4. thanks I will try

                  • z
                  • zenshi
                  • 00s
                  • 01 Oct 2021

                  2021, 30 Sep 2021Is this phone good option to buy for 150€ in october 2021 a... moreYes, it's a great phone, been using mine since back when it launched (bought it a month or so after it came out), and it's been very good to me, performance wise it still runs pretty much any game without fail, mine fell down quite a few times but other than very minor marks it has survived well and everything is working as it should.

                  I'm only considering upgrading soon because of its battery life, 3300mah paired with a Snapdragon 855 is not the best combo and I rarely finish a day without charging one or two times, other than that, battery life has remained constant and overall this is a very good piece of kit.

                    • 2
                    • 2021
                    • 3nt
                    • 30 Sep 2021

                    Is this phone good option to buy for 150€ in october 2021 and use it till new year? :)

                      I have Mi 9 with Europe rom; the actual update is MIUI 12.5 i updated my phone last july;

                        • ?
                        • Anonymous
                        • 3h%
                        • 26 Sep 2021

                        Anonymous, 24 Sep 2021Mine is stuck on android 10 miui 12.0.4.. I'm in EuropeMine is on MUI 12.5 Global Rom

                          Anonymous, 24 Sep 2021Mine is stuck on android 10 miui 12.0.4.. I'm in EuropeTry to update manually via recovery mode .. download the same rom as ur phone but the version 12.0.5 .. after that try to check to update i think the 12.5.1 will appear.. if it didn't update again by downloading the rom 12.5.1 and update via recovery mode.. and it is very easy step no need to pc

                            • ?
                            • Anonymous
                            • 39k
                            • 24 Sep 2021

                            Mine is stuck on android 10 miui 12.0.4.. I'm in Europe

                              • Q
                              • Qimay7475
                              • u7V
                              • 20 Sep 2021

                              Low batery..
                              Drain faster to playing game

                                Nik, 02 Sep 2021Screen died after using it for two months.Did you buy a used 1? Mine is 2 years and half now and the screen still great and working like a charm

                                  sheeluv, 16 Sep 2021I really want to buy this phone but I'm a little worri... moreIt's good for normal usage it can last the whole day.. but for gaming nahhh.... It won't last more than 2 hours and half for a game like pubg for example on smooth extreme setting

                                    I really want to buy this phone but I'm a little worried about its battery which is only 3300. Does the battery drain quickly? Is it good to use it for gaming?

                                      • N
                                      • Nik
                                      • L63
                                      • 02 Sep 2021

                                      Screen died after using it for two months.

                                        i flashed pixel experience android 11 rom but auto rotation is not working..i wonder why :/