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I got the new phone 15 days ago, thinking it'll be as amazing as Zenfone Max ZC550KL (Great Camera, everlasting battery) but it had super annoying issues, specially the battery draining too fast. Even during deep sleep (screen off for hours) the battery drained from 100% to 70% in like an hour or so, without any SIM/WiFi/Hotspot.
I had to fix this as it was impossible to go outside for a day and not have it switch off on my face when I needed it. None of the power saving settings helped.
So, I unlocked the bootloader following a youtube guide (it was a batch file on windows, not the original app which I found out about 10 mins ago), and flashed TWRP into it. Took a full system backup of all partitions and rooted it by flashing the latest SuperSU Binary. Worked like a charm. Installed CPU Tuner, deleted all triggers and set frequency to manually locked 500 MHz. When I need to play a game or do something which needs performance, I'd just go and manually pull the slider ahead to 2.3 GHz.
The avg. battery drain during deep sleep or screen off for hours, reduced from 1120 mAh to 10 mAh which is HUGE (found out with an app I cant remember). I'm happy with it as now it can last about a day and about 3 days if I'm mostly not using it, with WiFi on all the time. Its just slightly not as butter smooth with the UI as before.
Now, the camera quality is the worst I've ever seen. During dark, the PixelMaster Camera makes things crippling dark and too much purple pixelated noise and grain, pics taken from it look like from my Galaxy Tab 2 which I bought in 2012, and I tried different camera apps and everything I could, no luck. Where, the image taken from almost the same place at the same time, both phones held side by side, my old phone ZC550KL takes a million times clearer picture, brighter, perfectly visible and great looking. I also tried setting the same enhancements and stuff but nothing helped.
Some posts on googling it, suggest to update the system firmwire to improve camera quality but it requires the original recovery mode to be there, where I have TWRP.
I want to update the system as I have nothing to lose, already have 4-5 complete TWRP backups of every state (Original before rooting, rooted once, some modifications later, etc). Just if the phone gets bricked or doesn't boot anymore, that would be the problem.
I've messed around with almost everything I could on my Windows 7 and Windows 10 Desktop over past 6 years, so I have an idea about how things work.
Now, how do I update the system?
I think I could flash an update manually downloaded on my PC using adb and fastboot drivers... If so, how?
Current Software Information:
Current Android Version: Lollipop v5.0
Build Number:
LRX21V.WW-ASUS_Z00A-2.20.40.184_20160504_4658_user_044030427
Available System Update from the inbuilt app:
Last Check: 09/14/2017 12:00 PM (today)
Build Number: WW_2.20.40.198_20160930_8756_user_rel (93.31 MB)
CaptianXLAB said:
I got the new phone 15 days ago, thinking it'll be as amazing as Zenfone Max ZC550KL (Great Camera, everlasting battery) but it had super annoying issues, specially the battery draining too fast. Even during deep sleep (screen off for hours) the battery drained from 100% to 70% in like an hour or so, without any SIM/WiFi/Hotspot.
I had to fix this as it was impossible to go outside for a day and not have it switch off on my face when I needed it. None of the power saving settings helped.
So, I unlocked the bootloader following a youtube guide (it was a batch file on windows, not the original app which I found out about 10 mins ago), and flashed TWRP into it. Took a full system backup of all partitions and rooted it by flashing the latest SuperSU Binary. Worked like a charm. Installed CPU Tuner, deleted all triggers and set frequency to manually locked 500 MHz. When I need to play a game or do something which needs performance, I'd just go and manually pull the slider ahead to 2.3 GHz.
The avg. battery drain during deep sleep or screen off for hours, reduced from 1120 mAh to 10 mAh which is HUGE (found out with an app I cant remember). I'm happy with it as now it can last about a day and about 3 days if I'm mostly not using it, with WiFi on all the time. Its just slightly not as butter smooth with the UI as before.
Now, the camera quality is the worst I've ever seen. During dark, the PixelMaster Camera makes things crippling dark and too much purple pixelated noise and grain, pics taken from it look like from my Galaxy Tab 2 which I bought in 2012, and I tried different camera apps and everything I could, no luck. Where, the image taken from almost the same place at the same time, both phones held side by side, my old phone ZC550KL takes a million times clearer picture, brighter, perfectly visible and great looking. I also tried setting the same enhancements and stuff but nothing helped.
Some posts on googling it, suggest to update the system firmwire to improve camera quality but it requires the original recovery mode to be there, where I have TWRP.
I want to update the system as I have nothing to lose, already have 4-5 complete TWRP backups of every state (Original before rooting, rooted once, some modifications later, etc). Just if the phone gets bricked or doesn't boot anymore, that would be the problem.
I've messed around with almost everything I could on my Windows 7 and Windows 10 Desktop over past 6 years, so I have an idea about how things work.
Now, how do I update the system?
I think I could flash an update manually downloaded on my PC using adb and fastboot drivers... If so, how?
Current Software Information:
Current Android Version: Lollipop v5.0
Build Number:
LRX21V.WW-ASUS_Z00A-2.20.40.184_20160504_4658_user_044030427
Available System Update from the inbuilt app:
Last Check: 09/14/2017 12:00 PM (today)
Build Number: WW_2.20.40.198_20160930_8756_user_rel (93.31 MB)
Click to expand...
Click to collapse
very first of all you must update to MM latest MM it has improved battery life and there are also security related issues fixed. the very best thing to do is.. go to the following link. see the section flash firmware without AFT. (you do not need to change recovery or boot image or any thing just follow the instruction)
reboot your phone in fastboot mode and run each and every command step by stem. even if some of them fails.. not reboot, after first boot go to recovery mode and factory reset. start again and then again sideload latest MM from asus website
https://forum.xda-developers.com/zenfone2/help/thead-bricked-phone-updating-to-mm-tips-t3452785
Not so sure I wana upgrade to MM though. Feels like something will definitely go bad during that.
On ASUS support site, in the firmwire tab, I found a LOT of options to download. It'll take time to find the correct version.
Say I found the correct version (or ROM) and downloaded it. (about 1.2 GB), what are the steps to flash it on my phone? Can it be done using TWRP?
Worth upgrading to Marshmallow IMHO
No freezing, less ram usage, better battery usage especially with a new battery, more compatibility to newer apps, Permissions control (love it)
If you say that you are handy on PC then great, cos you may need to be
ASUS ZenFone2 (ZE551ML) software Image: V4.21.40.352 for WW SKU only*(andriod M)
Thats the current version of MM
Download and place onto SD card, unplug cord and system should recognise.
Plenty of info on the web about upgrading however you need to unroot and renable all disabled.
More then likely will brick phone but piss easy once you have done many times lolol
Check out the Unbrick threads
https://forum.xda-developers.com/zenfone2/general/guide-fix-bricked-ze550ml-ze551ml-usb-t3405840
https://forum.xda-developers.com/zenfone2/general/guide-recover-fastboot-bricked-zenfone-t3284337
And what i initially used
http://www.techyoutubers.com/2017/04/fixed-how-to-fix-zenfone-2-hard-brick.html
https://www.youtube.com/watch?v=fsAse5F5xtM
CaptianXLAB said:
Not so sure I wana upgrade to MM though. Feels like something will definitely go bad during that.
On ASUS support site, in the firmwire tab, I found a LOT of options to download. It'll take time to find the correct version.
Say I found the correct version (or ROM) and downloaded it. (about 1.2 GB), what are the steps to flash it on my phone? Can it be done using TWRP?
Click to expand...
Click to collapse
as i suggested it is foolproof method to update to MM. i am 100 percent sure you will not brick if you follow what i suggested. don't see multiple threads. multiple instructions. do as i told earlier
Sorry to be away for such a long time... I'm back. xD
As soon as my exams are over, to do this upgrade.
I'll do it like this:
1. Copy the update zip file to MicroSD. [Filename: UL-Z00A-WW-4.21.40.352-user.zip]
2. Full system image backup using TWRP - All Partitions to MicroSD, then transfer to my PC (Just because I want to xD )
3. Clean format all partitions on my phone (I've had enough "errors after updating" issues on PC, so)
4. Select the update zip file from TWRP, flash it.
5. HOPEFULLY there won't be any errors (If there will, I'll simply restore everything from the backup I just made on step 2. Nothing lost!)
6. Reboot and pray for it to work xD
[if it still works and boots just fine]
7. Remove SIMs, MicroSD, etc., Factory Reset (again. Just cos I want to xD )
[Hope for it to still work on rebooting]
8. Check if everything's working (all apps, calling, playstore, etc. just to make sure)
9. Install everything, sync up, make it my phone again
10. Reboot, boot into Recovery (to see if TWRP is still there?)
11. if TWRP isn't there, Boot into Fastboot, flash a stable TWRP recovery to replace the default one using my PC.
12. Create a MM (before-root) backup of all partitions. (Actually, I'll create THREE backups, can't risk any failures xD )
13. Download the latest SuperSU, Flash it. Download a supported Viper4AndroidFX v5 apk or flashable zip, install/flash that too.
14. Set up root apps (CPU Tuner, Titanium Backup, BusyBox, etc) and first thing to see if Viper4Android works.
[Cos if my phone aint havin' v4a, everything above is useless for me because I can't live without that perfected sound and I'll just revert! xD ]
That seems to be about it. Will all this work? Any suggestions?
Some questions I still have -
There's also a recovery.img file in that zip. Will it overwrite TWRP?
Will the bootloader be locked again after this update? (unlocking it was a long search for android LP)
And the main reason not-that-tech-related I'm wanting an upgrade now (Substratum!):
Spoiler
Will Substratum Theme Engine work with MM? (I just want EVERYTHING BLACK - to rest my eyes. I'll buy themes too)
How well can substratum skin my phone? (I want literally everything dark themed, as much as possible)
Will backgrounds of apps like messenger/facebook be dark themed?
Hi guys,
I am using the stock rom now since the day I got it and unlocked the BL and installed Magisk for root and SafetyNet. Phone worked fine all the time (lazy me never changed the rom) until recent.
Most applications like Instagram, Snapchat (and all that garbage) and others randomly crash recently.. Application stopped working or process.media whatever stopped. Did try to do the usual stuff removing cache, but now this also does not work anymore. Also it's time to update because the WiFi driver has this RCE flaw(CVE-2017-13292) in it and well, lots of other bugs in the rom. The most irritating bugs that all my android devices had. The flashlight stops working because of the camera initialization or something, need to reboot the phone in order to use the flashlight again (when I was with a hot soldering iron in my car waiting for the device to reboot to solder some ****ing wires under the dashboard pissed me off really good. Though long time ago, but you get the idea... )
I did try to update my device using OTA (I knew it wasn't going to work, because mine is rooted). I did try it and the update failed(lol), luckily the phone still booted :cyclops:
What should I do now, can I just flash a stock rom using twrp or is there another stable rom that is clean like the lenovo roms without all the garbish? Which ones are advised?
The version of the rom I am using as of now is in my signature. I do not really need Magisk anymore for now, I had it installed mostly for NFC emulator but the company I emulated the card for no longer exists so meh.. No need for emulating anymore Pachting ads away with luckypatcher is also not worth it and there's like no proper way of blocking ads so I'll rather live with it instead of messing around and putting effort in it.
NiTrOwow said:
Hi guys,
I am using the stock rom now since the day I got it and unlocked the BL and installed Magisk for root and SafetyNet. Phone worked fine all the time (lazy me never changed the rom) until recent.
Most applications like Instagram, Snapchat (and all that garbage) and others randomly crash recently.. Application stopped working or process.media whatever stopped. Did try to do the usual stuff removing cache, but now this also does not work anymore. Also it's time to update because the WiFi driver has this RCE flaw(CVE-2017-13292) in it and well, lots of other bugs in the rom. The most irritating bugs that all my android devices had. The flashlight stops working because of the camera initialization or something, need to reboot the phone in order to use the flashlight again (when I was with a hot soldering iron in my car waiting for the device to reboot to solder some ****ing wires under the dashboard pissed me off really good. Though long time ago, but you get the idea... )
I did try to update my device using OTA (I knew it wasn't going to work, because mine is rooted). I did try it and the update failed(lol), luckily the phone still booted :cyclops:
What should I do now, can I just flash a stock rom using twrp or is there another stable rom that is clean like the lenovo roms without all the garbish? Which ones are advised?
The version of the rom I am using as of now is in my signature. I do not really need Magisk anymore for now, I had it installed mostly for NFC emulator but the company I emulated the card for no longer exists so meh.. No need for emulating anymore Pachting ads away with luckypatcher is also not worth it and there's like no proper way of blocking ads so I'll rather live with it instead of messing around and putting effort in it.
Click to expand...
Click to collapse
Android Pie ROMs are pretty stable and usable now (everything works but be aware that all custom ROMs will have darker video recording in comparison to stock)
ROMs of choice:
On Oreo: RR(Unofficial final builds by fullbustah),CrDroid,Arrow or Xtended
On Pie: CrDroid(has an extended desktop bug), SuperiorOs,ArrowOs,AospExtented
I also recommend installing a modded Gcam version because that will significantly boost your camera quality without any throwback or setback.
To install a pie ROM, I have written a tutorial somewhere in our guides section. You will find it pretty quickly.
Also Magisk 18.1 (latest for now) and Adaway still blocks ads perfectly. (Systemless hosts enabled in Magisk settings needed)
I recommend joining Lenovo P2 telegram group for latest news, support and download links.
sm00th4f3 said:
Android Pie ROMs are pretty stable and usable now (everything works but be aware that all custom ROMs will have darker video recording in comparison to stock)
ROMs of choice:
On Oreo: RR(Unofficial final builds by fullbustah),CrDroid,Arrow or Xtended
On Pie: CrDroid(has an extended desktop bug), SuperiorOs,ArrowOs,AospExtented
I also recommend installing a modded Gcam version because that will significantly boost your camera quality without any throwback or setback.
To install a pie ROM, I have written a tutorial somewhere in our guides section. You will find it pretty quickly.
Also Magisk 18.1 (latest for now) and Adaway still blocks ads perfectly. (Systemless hosts enabled in Magisk settings needed)
I recommend joining Lenovo P2 telegram group for latest news, support and download links.
Click to expand...
Click to collapse
Alright thanks for the information. I will try to flash my phone next week. I do have one more question. Is there a hardware selftest or test menu in the stock recovery or bootloader because I have a bad feeling that my board might be about to fail. I think this because all kinds of funky things did happen the last few days (I hope the mainboard is still fine, fingers crossed).. I know my old Lenovo had this menu and this way I found out it was dead. Well it was obviously dead but for sure after the test failed because Android didn't boot anymore, and was not able to flash another rom and get that one to boot up.
NiTrOwow said:
Alright thanks for the information. I will try to flash my phone next week. I do have one more question. Is there a hardware selftest or test menu in the stock recovery or bootloader because I have a bad feeling that my board might be about to fail. I think this because all kinds of funky things did happen the last few days (I hope the mainboard is still fine, fingers crossed).. I know my old Lenovo had this menu and this way I found out it was dead. Well it was obviously dead but for sure after the test failed because Android didn't boot anymore, and was not able to flash another rom and get that one to boot up.
Click to expand...
Click to collapse
I'm not sure if the p2 owns a menu like that.
You might wanna boot to bootloader and navigate through the small menu via volumekeys.
But otherwise...no idea.
Good luck!
Hey all,
I have updated by Redmi Note 8 Pro, to 11.0.3 yesterday. The updated stated to be solving some issues with Netflix (although it worked perfectly fine for me).
The issue:
After unlocking the phone, it reboots itself after a few seconds 10-20s, and goes into redmi-recovery 3.0.
Thankfully it is giving me enough time to use google authenticator (I have extremely important auth codes here that I cannot lose).
Edit: Worth mentioning that this happens when the Xiaomi Sim Activation Service is performing its activation.
Edit2: The "unlocking", refers to unlocking the screen by drawing the pattern.
Way forward:
As I don't have a secondary phone with the authentication codes, the option to wipe the system is a no go here.
I have been scouring the forums for any hints etc, but did not come across anything useful for my case.
Do you have any suggestions how this situation could be averted? Any feedback welcome.
Thanks!
khorne55 said:
Hey all,
I have updated by Redmi Note 8 Pro, to 11.0.3 yesterday. The updated stated to be solving some issues with Netflix (although it worked perfectly fine for me).
The issue:
After unlocking the phone, it reboots itself after a few seconds 10-20s, and goes into redmi-recovery 3.0.
Thankfully it is giving me enough time to use google authenticator (I have extremely important auth codes here that I cannot lose).
Edit: Worth mentioning that this happens when the Xiaomi Sim Activation Service is performing its activation.
Way forward:
As I don't have a secondary phone with the authentication codes, the option to wipe the system is a no go here.
I have been scouring the forums for any hints etc, but did not come across anything useful for my case.
Do you have any suggestions how this situation could be averted? Any feedback welcome.
Thanks!
Click to expand...
Click to collapse
Unlocking of the bootloader if I am not mistaking always goes with an automatic wipe of system and I am afraid nothing can be done to avoid this besides of course not unlocking bootloader in the first place.
From what I recall it does not go to recovery by itself when it completes the unlocking procedure, it just reboots to fresh new start of OS.
Sorry if I am bringing some bad news here.
Good luck!
Muad.Dib said:
Unlocking of the bootloader if I am not mistaking always goes with an automatic wipe of system and I am afraid nothing can be done to avoid this besides of course not unlocking bootloader in the first place.
From what I recall it does not go to recovery by itself when it completes the unlocking procedure, it just reboots to fresh new start of OS.
Sorry if I am bringing some bad news here.
Good luck!
Click to expand...
Click to collapse
Thanks for your feedback even though it might not be positive!
> Just to clarify I did not unlock the bootloader, it was a standard OTA update pushed to my phone.
>> By unlocking I mean drawing the pattern on the screen, the phone works fine while "locked", but as soon as I unlock it (draw the pattern), it will restart after 10-20 seconds.
Thanks again.
The issue somehow disappeared on its own.
For people who would experience this in the future (I have no idea if any of those steps fix the issue).
>Since I had a limited amount of time to take all the actions, I performed a sync of all accounts + did a fresh google backup
>Once triggered I quickly locked the phone (This prevented the restarts).
After I completed backing up all my data and was about to wipe the phone, it suddenly started working as usual.
I have no idea if the backups triggered some mechanism or did the mi account sync trigger the SIM Activation Service, but the issue is now gone.
Hello there.
After some struggles I got my phone rooted, found that fingerprint doesn't work, then went back and forth for quite a bit, putting my phone into and out of multiple boot loops and stuck red magic icons along the way. Suddenly 4.15 dropped...and it's not on redmagic.gg site...just as I decided i want to root my phone after all.
I have 3 questions. First, may I ask if there is a way to extract boot.img out of my phone?
Via adb shell I was able to locate both root_a and root_b. However since I don't have root access I can't actually get them out of my phone (i.e. dd if=... of=... gives a nice permission denied). There are also talks of using custom recovery to extract boot image, however I wasn't able to find any for redmagic 6. Am I missing anything?
Second, I noticed that fingerprint reader dies as soon as I unlock flashing, not when I flash unsigned images. However words in the shadow (basically that 1 guy in that how to guide on this forum) speaks of a way to maintain fingerprint functionality on a rooted phone. May I ask how that might be done? More whispers enveloped in darkness (also 1 guy in the chinese nubia forum) tells of a way to root while not even unlocking bootloader. May I ask what is that sorcery?
Finally, despite this being my first phone with good fingerprint scanner, I've grown to really like it. I noticed there's no data wipe on relocking bootloader. Is it possible to makes some changes (say Vance my youtube apps, modify some settings, get rid of some bloatware) before locking back?
Last I did this (I installed vanced my youtube, installed local update, then relocked bootloader) I was sent into a boot loop that took a bit to get out of. I'm a tad scared but also can't tell if it categorically won't work or I was perhaps just unlucky.
Delete thread
Hello everyone. Today i will be guiding you all for rooting Red Magic 6/Pro with bootloader locked as well as FP working. Download the attached file. extract on pc. Now first things first enable developer options and Allow oem unlock. Now once...
forum.xda-developers.com
check out this
.
rodagola said:
Hello everyone on xda, please bare with me. Here's my story
I own a Redmi Note 8 pro, chinese rom model. It was running miui 11.0.3 over android 9 If I recall correctly.
Ok so... I was tired of some of the china apps pushing their notifications over and over and auto installing stuff, so I looked up how to apply adb commands to remove such bloatware, which was a fairly simple process. I copied and pasted a list of safe stuff to delete I found around some forums.
then... there were some other packages I checked out using an app called "app inspector", which directly tells you which app is under which package (totally useful for this purpose).
I tried to be careful not go overboard since I don't have any root access, or custom recovery, and wasn't really planning to have these, just wanted to keep this as my simple daily driver cellphone, but also perform this little maneuver to get rid of some bloatware.
little did I know, I was about to somehow softbrick it. More info: I did not use a screen lock method other than the "swipe up".
Ok, so I uninstalled some packages I cannot remember exactly how they went, but they had the terms "xman" and "yman" on them I think, I wasn't so sure about them because I looked them up on the web yet they didn't appear anywhere. I think they went something among the lines of "com.android.miui.xman". I also uninstalled 2 or 3 more, but after googling, they seemed unsuspecting.
Anyways, I'm aware there's a command to reinstall the packages because they're still on the phone's ROM image. That is in case I had to restore anything back to normal. Turns out I later rebooted the phone and when it launches the lock screen, I keep swiping up but it won't take me over to the actual MIUI launcher. The screen is frozen on the lock screen.
I'm not freaking out at this time because I still tried to connect the device to the pc, and it still shows as connected, I then go to the adb console and type "adb devices", it is still recognized, however, it says next to it that it is unauthorized... damn it. So now I might not be able to run the commands that allow me to reinstall the exact packages that are rendering the phone softbricked (I guess), plus I'm not really sure which package caused this.
After about a minute or two on the lock screen, the phone takes me to the "redmi-recovery 3.0",
which displays 3 options:
Reboot to system: which basically forms a loop
Wipe date: godforbid... really don't want to do it since I likely had many files not backedup
Contact miassistant: not sure what to do with this, says "pcsuite.mi.com" at the bottom
on the miassistant option you can apparently sideload stuff, idk how to go about this, maybe it allows me to install a slightly upgraded ROM, which in turn will work the same as if it was an OTA update (so it will keep my data as it was instead of wipe)? Because the point is not to erase my user data!!
I'm not sure how to feel or what to do without losing my pictures, notes and documents
I have hopes this situation can be turned around back to normal, and like the title implies... I'm WILLING to PAY you through paypal or something to WHOEVER offers to guide me through in the best way possible. Please if you have the knowledge/experience don't hesitate I'll also be grateful timelessly.
I'm not an expert at these scenarios so I might as well ask on xda where most are really skilled! Thanks in advance to those amazing souls
Click to expand...
Click to collapse
tldr;
If you can boot into fastboot mode you can just flash a official MIUI fastboot ROM:
Xiaomi Firmware Updater (where you can download official MIUI ROMS): https://xiaomifirmwareupdater.com/
This is the current hard unbrick method: https://telegra.ph/Installing-Redmi-Note-8-Pro-firmware-via-SP-Flash-Tool-01-21
It should also work in your case and there's even a video guide.
This is another video guide for fixing a hard brick:
Both methods above will format your phone though (afaik all data will be lost).
Compass.
.
rodagola said:
are these the kind of roms that you unzip and have the BL, AP, CP, CSC files? I could try that, but I've heard installing home_csc will not override/wipe my personal data. If this is what you meant, can you confirm? Or do you reckon these linked video tutorials would not wipe the data?
Click to expand...
Click to collapse
Nope, it doesn't.
If you can boot into Fastboot, flash the ROM using Mi Flash, otherwise, use this tutorial:
.
Compass Linux and juliusjr have told you the method, so I will just add supplemential infos.
In your case, I think simple upgrade will do the trick, dirty flash is applicable both via fastboot flash (mi flash) and recovery flash (the mi assistant method). If you want to stop the ads, I will recommend you to unlock your bootloader, move to global, root, and use an adblocker (a bare minimum config, in trade of some bangking apps being blocked).
I don't know the corresponding version for miui china rom, but in global rom, prior 12.0.0.7 (the one with the early 2021 security update), you can dirty flash back and forth while keeping your data.
.
rodagola said:
Hi, thanks for your info, I would like to try the mi flash tool as I've been told before the stock recovery thing has less chances of working. However, I had dev options turned on before but didn't manage to turn on the "OEM unlock" option, will flashing original ROMs work this way? or did I need that option toogled on? That's my last doubt, and thanks a lot. Btw, the China ROM this Redmi N8P had never ever showed me any ads, but thanks a lot as well for such input
Click to expand...
Click to collapse
You still have a locked bootloader? (How do I know? You will see "Unloked" on the bottom of the screen everytime your device reboots and showing mi logo if your device is unlocked)
Hmm, mechanically it work like normal ota update. Full recovery update will ony erase nessesary partitions (system, boot, and some other things) while keeping your data intact. So doing this to your phone technically safe. You can do this with MiFlashPro, do a recovery update using a recovery rom (the 2 gigs one) greater than your current MIUI version. But please bear in mind that I have never done this before to a locked phone. A same distribution version IS A MUST (i.e. global with global).
Oh and it will need you to log in to your xiaomi account. My guess is you need the flash permission open for your account (if you have unlocked your phone you shouldn't have a problem). I have never flashed with an account that never have been used to unlock a bootloader, so I might be wrong.
If your phone is bootloader unlocked, Mi Flash is the least demanding and it can retain your data with "save user data" in the bottom right corner option on, regardless your miui version (but I think there will be some problem with installed apps if you downgrade from A10 to A9).
Hope this help.