[Xiaomi Mi A3 Questions & Answers] Jhon_Locke:
EDIT:

In my way of trying to apply to warranty and flashing the stock package into the phone and Windows being Windows, I had problems using the batch script, it stopped for long time and didn't do nothing forcing me to restart the phone and restart the batch, until I uninstalled the driver and make Windows reinstall it automatically (manage devices) and it finally flashed it all, actually I flashed the package three times just to be sure lol. So, in the end I wanted to turn off the friggin phone because I was very done with it (what a PITA it has been) and wanted to apply for my warranty so as there is no command in fastboot to shutdown the phone I didn't know how to shut it down so I tried pressing Power button and releasing it the moment the screen goes off but I think I didn't do it right or the phone can't be shutdown that way (this is most probably the answer), well the phone rebooted and by the grace of Zeus it booted for the first time into MIUI and now is waiting for me to configure the phone, none of the times I flashed this packaged into the phone it booted into MIUI, never, and just when I want to turn the phone this thing boots, I don't know if I'm going to venture into flashing anything again being the phone how it is but goddamnit it was a real PITA, I had to use my old Redmi Note 3.

So, tl;dr: Flashed stock package, phone booted finally, all is OK for now.

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Sooo, I was having problems with flashing stuff on this phone but I solved them and I was able to flash HavocOS, it was OK and I could use my phone kinda well (some reboots but nothing serious, or so I thought). So, until 12 hours ago my phone was having problems with the File Manager (I used FX app and also the stock one), it hanged and didn't respond and made the phone reboot itself a couple times, that was weird, actually the whole time I used this ROM I was having problems with my files, it used to took long time to read some files and I was thinking that maybe my SD was bad but apparently it's not. So, after the second reboot I was able to finally open the file manager but navigating through the SDCard was buggy and the app didn't show me any file (it show me an empty list) so I rebooted my phone manually (this time wasn't done by the phone itself) and now is when the phone never passed from the Havoc logo, I waited something close to 30 min and nothing, rebooted and waited 10 min and nothing, it still hanged on the logo, went into recovery to wipe everything and re-flash all and after doing all that and tried to boot to system my phone was booting to recovery and didn't past that, tried installing stock (flash_all script) and then installing recovery and everything again and nothing, it booted to recovery always. So there is when I realized I couldn't change anything in the slot A (at least to what boot refers), I can't install TWRP nor OrangeFox, I can do it in slot B, and even if I boot into recovery on slot B I can flash the zip installer, change the slot and try to boot to recovery from slot A but it boots to the bootloader, and yes, TWRP didn't output any error when flashing the installer.

Yes, the script flashes everything OK, well not everything, system and vendor partitions (A and B) I had to flash them manually because it gave me some errors with the script (reading errors, and yes I compared checksums so it was super weird) but in the end supposedly the stock ROM must have been installed, which I couldn't try because even after flashing everything on the script the phone was booting to bootloader, I didn't give importance to this because before I was able to flash and boot HavocOS I did the same thing because my phone was bootlooping into fastboot: I ran the script, flashed manually those images because it gave me the same errors, tried to boot to system and the phone booted to bootloader, didn't give a sheat, flashed OrangeFox recovery, ROM, recovery installer, GApps, nofde patch and then I was able to boot to HavocOS. But now this time I tried to install TWRP with fastboot command but it didn't worked, fastboot doesn't throw any errors while flashing, it reported:

Sending 'boot_a' (39780 KB) OKAY [ 1.042s]

Writing 'boot_a' OKAY [ 0.208s]

Finished. Total time: 1.263s

But if I try to boot into recovery it sends me to fastboot/bootloader, if I do this in the slot B I can successfully boot into recovery and, as I said, if I flash the installer, change the slot and reboot to recovery, my phone reboots to fastboot.

This has happened to someone else?

Does anybody knows of any solution?

I still have warranty (phone has less than 3 months) so I probably can flash the stock package and lock my bootloader so I can get my phone checked as probably it is a hardware failure, probably and hopefully :D.

Oh, and also I have to add that the recovery was also lagging sometimes (OrangeFox). Sometimes when I was looking into files on the SD, also when I pressed the "reboot system" button it hanged for half a minute and the it proceeded to reboot, and also once when I was flashing the nofde patch the phone also hanged and rebooted into recovery by itself. So this indicates that maybe is a hardware thing right? Because there is no way that the recovery could have gotten corrupted or something just out of the blue.