Bootloop on stock X3 NFC (Global/EU) - Xiaomi Poco X3 NFC Questions & Answers

I found the phone in my bag with a discharged battery and does not want to boot all the way. It shows the animated MIUI logo for about 1 minute and then restarts, sometimes showing the menu to switch to 'wipe data' and 'assistant'.
It's all stock, locked, up-to-date, I think still on Android 10 or which one it is. I did not install any new apps and don't even use the phone for anything other than gaming.
I've tried connecting with PC Suite but it doesn't see the phone. Fastboot anything does not work since the bootloader is locked. I know I can wipe data and be done with it, just wondering if there is anything else I can do.
EDIT: I've wiped the data and reinstalled the phone but would like to know if there is a way to avoid this in the future.

Unlock bootloader. This is very important. Then you have full control over the device.
For example the other day I had hard brick because fastboot flash was interrupted. And I still managed to unbrick the device thanks to unlocked bootloader and custom recovery.
It's really hard to hard brick this device. I love Xiaomi <3

Related

[Q] [Help] Stuck in boot on Google

Alright. This is a 100% stock Nexus S- nothing "development" wise was done to the device, no system tools installed that could cause issues, basically nothing but basic apps loaded on the device.
It just started today. I was working on my bf's Vibrant (another, more successful story) and grabbed my Nexus and hit the power button and it did not turn the screen back on. Holding the power button down did not reboot the device, and none of the buttons would light up or function.
So, I pulled the battery. Now every time I try to boot, it hits the "Google" screen and stays put. I left it alone for 5 minuets hoping it would finish booting and nothing. The soft buttons will light up, and if I touch them they register the touch but it does not help the phone to boot.
I do know that the phone was basically dead right before this happened, and at first I thought it was just dead. However, its been on the charger for at least 30 minuets- which should have given it enough of a charge to boot up, and still nothing.
What could cause this issue?
I did install a couple of new applications today, and I know the market updated a bunch of them but they're all apps that I've had on several phones (minus the two new ones today) and have never had an issue with any of them. The two new ones I downloaded were OS Monitor, and a 2G/3G toggle for hopes of improving some battery life.
But those are the only two things I've done differently. I've only been using the phone for a week but I haven't had any problems at all, before this.
Now- if worst comes to worst I can seem to get into the bootloader, and through that, stock recovery. So I can try to do a factory reset and wipe cache but without a backup I really kinda hope thats a last resort.
Please help, and let me know if you need any more information.
Thank you!
I understand that you're fully stock which I assume means you have a locked bootloader (everything I say from here on out assumes as such)? First, I'm going to also assume that you didn't update to 2.3.3? If not, then follow the steps in this guide to boot into a custom recovery and from there go to backup and restore and do a NANDroid backup. Now go to mounts and storage and mount USB storage (or whatever its called, don't have my phone right here). Plug your phone into your comp and copy over whatever you'd rather not lose from your SDcard (just in case you have to wipe). Now download the 2.3.3 update from here and put it on the root of your SD card. Now go back and flash this. Reboot and see if you're golden. If so, great, if not try a factory reset.
If that doesn't work go through the steps again to boot into a custom recovery, you might have to unlock your bootloader and wipe all your data (again) and restore your backup and try doing a factory reset with that. Don't worry about unlocking the bootloader, it can be relocked with a simple command and it won't wipe anything to relock it.
Here is the command just in case:
Code:
fasboot oem lock
I got all the way to having clockwork recovery booted up on the phone, but nothing would mount. Everything gave me an error, and factory reset froze...
I don't think there is anything I can even do from here, is there?

[Q] Moto G not working

Hello.
My friend gave me his Moto G to be fixed, the cellphone doesn't turn on on most of the times (it gets stuck on a black screen after the Motorola logo) and, when it turns on, it's impossible to use it, beacuse there are lots of processes stopping. My first idea was to factory reset it directly from the system or from the recovery, but it doesn't work, it looks like it's doing something, but when I turn the cellphone on, every thing is still there (and I still can't use it).
So, yesterday, I unlocked the bootloader to try to put a custom recovery or the stock firmware on it, using fastboot. The unlocking process was ok, but I can't do nothing on the cellphone using fastboot, when I try to put a custom recovery or the stock firmware, the messages appear on the cellphone and I get only OKAY on the computer, but when I turn the cellphone on, everything is still there and the recovery is still the default one. Does anybody have any idea of what it might be?
Long story short:
The smartphone doesn't work, I cant't factory reset it through the stock recovery, nor use fastboot to use a custom recovery or factory reset it (it seems to be okay on the cellphone and the computer, but nothing happens).
Sorry for bad English.

Bootloop nexus 5

Hello,
So here it how it goes:
My N5 freezes suddenly and shortly after it goes into a bootloop ( stuck at Google logo ). And from there on, the only thing I can do is just go into the bootloader.
If I go to recovery mode I can see that I get "msm_sdcc.1/by-name/misc no such directory" or something like that.
The only thing that helps make this issue dissapear is performing an oem unlock in fastboot mode, but this is not a good solution since this is the 2nd time it has happened to me in the past 3 months.
What do you guys suggest I should check/do to prevent this issue from ever happening?
Thanks!
Does the bootloader relock itself at reboot? If it does, the emmc chip is going or gone.
@audit13
The bootloader doesn't relock itself. It remains unlocked even after reboot.
I just unlock it to perform this "trick" that helps me get out of the bootloop. ( also after unlocking it, I perform a fastboot oem lock, done this both times ).
Also, don't know if it is related, when i go into recovery mode i get the android with an X or an ! (forgot which one) which is most probably due to files missing.
The screen with the dead android is normal. No need to relock the bootloader in my opinion.
Have your tried flashing a completely stock rom, including th userdata.img file to see if that solves the issue?
@audit13 Wanted to keep the stock rom with which it had come. Also doesn't an update ( from L to M for example) change the rom completely?
An ota update will move the phone to the latest of the current version (e.g. 5.0 to 5.01). The the ota will move from LP to mm.
Personally, I prefer mm.
So.. The phone did it again today, same behavior, same result ( bootloop out of nowhere ). This time I performed a complete new install of the OS ( wipe cache, factory reset + reflashed a factory image).
At this moment the phone is working as usual and now I will wait and see if the issue reoccurs (hope not).
If someone else has any other ideas an how to prevent or read some logs from the phone ( even if I performed an oem unlock ) please reply.

Nexus 5 not starting

Urgent help reqd
randomly my nexus 5 restarted
google came on screen and now only those four animated circles are showing up and the phone doesnt go further
went in bootloader but cant wipe cache, cant format, or anything else from there.
usb debuggng must be off as far as i remember
trying to flash through sdk manager. have downloaded image. but stops at "waiting for device" in cmd and it doesnt go any further than that. even tried doing it manually through cmd.
when the phone is connected it is showing the drivers but it isnt installng and can see the yellow exclamation.
manually downloaded the drivers and tried installing manually but shows drivers are up to date.
uninstalled driver and reinstalled but same issue. it is connected to usb 2.0.
now how do i get it to work?
I have tried all the options i could search for on this forum but none of them solved my issue.
Is the bootloader unlocked?
How do i check that?
Ok got it
It is locked
How do i unlock?
I checked some unlocking bootloader threads but they all require usb debugging to be on.
My phone is not starting at all so i cannot do that
How do i go about it now
Tried nexus root toolkit. It isnt detecting the device.
Unlocking will wipe you device.
Google themselves have a guide on how to flash, not sure why you are using toolkits.
Also, you will wipe your device, if you haven't already. Make sure you have the right drivers, make sure you get the device to come up under "fastboot devices"
Already tried all methods mentioned by google or xda.
If you read my initial post my phone is not getting detected as well but shows installing drivers when connected but the installation fails.
Manually install the correct drivers.
Tried that but i get the error that you already have latest drivers. But its not detecting the phone
Try removing the drivers and reinstalling
Also, try different USB ports and cables.
Did all of that a number of times. Still no luck
Other phones are getting connected and detected just fine.
useruser12 said:
Urgent help reqd
randomly my nexus 5 restarted
google came on screen and now only those four animated circles are showing up and the phone doesnt go further
.
Click to expand...
Click to collapse
Hi all, i have a similar problem
this morning my n5 boots into "optimizing apps", but stops when reach around 15/20 apps and reboot (3 or 4 times)...
Now, only keeps in android animation like useruser12.
I can see my data in TWRP, battery 95%...
I wipe cache/dalvik... nothing
I reflash the kernel (ElementalX 6.17), still nothing
Any ideas?
PS: latest news. After make a backup, I made a factory reset and restore a system-boot-cache partition from old backup. Now the phone boots but i hate lose all my data xD. I want try to solve my problem using my "corrupted" backup for avoid losing data. If that fails, I can always restore this functional backup. Any ideas again?
Used the nexus root toolkit.managed to unlock bootloader but immediately the device reboots and goes into the bootloop again.
Tried the flash stock + unroot function as well which detected my factory image and everything went smooth till it came back to unlocking the bootloader and rebooting the device after that and again went into the bootloop
Though i have installed the drivers, on reboot windows 7 automatically starts installing the mtp usb device driver but fails. Manually downloaded the drivers and installed as well.
Still its not worked and whatever i do it comes back and get stuck at the bootloop.
Any expert can give a solution? Thanks
After unlocking the bootloader, does the bootloader relock when the phone is rebooted? If it does, the memory chip is defective.
Phone doesnt reboot completely.goes into a loop after the google logo and doesnt go further.
If i switch off the phone midway here without it booting up and then restart the bootloader then its locked again.
But what i read was that the process of complete reboot needs to finish and i need to turn on usb debugging. So is it because of that the bootloader locks again?
Anyways, this what im facing
Dalamar666 said:
Hi all, i have a similar problem
this morning my n5 boots into "optimizing apps", but stops when reach around 15/20 apps and reboot (3 or 4 times)...
Now, only keeps in android animation like useruser12.
I can see my data in TWRP, battery 95%...
I wipe cache/dalvik... nothing
I reflash the kernel (ElementalX 6.17), still nothing
Any ideas?
PS: latest news. After make a backup, I made a factory reset and restore a system-boot-cache partition from old backup. Now the phone boots but i hate lose all my data xD. I want try to solve my problem using my "corrupted" backup for avoid losing data. If that fails, I can always restore this functional backup. Any ideas again?
Click to expand...
Click to collapse
Lucky that you could do a factory reset. I wasnt even able to do that from the bootloader.
useruser12 said:
Lucky that you could do a factory reset. I wasnt even able to do that from the bootloader.
Click to expand...
Click to collapse
Sorry, i did it via TWRP.
If the bootloader relocks itself upon reboot, it's the memory chip that is damaged.

I can't unlock bootloader because a bootloop

Hi, I was trying to update the phone by OTA with an official firmaware, but something went wrong and now it goes in bootloop with the MI logo that keeps appearing on the screen.
I want to flash a clean firmaware to solve this thing, but without unlocking the bootloader it seems impossible.
So now i'm trying to unlock the bootloader, but using the Mi Unlock Tool I need to give some permission that I can't, because I can't turn the phone on!
It asks me to add my account on the phone (that was wiped during those steps)
How to solve this?!
Just to complete this thread. Now the phone turned on, only God knows how.
I did nothing, nor charging, it just turned on when I press the power button. That's a miracle.
But, the question is still there... If this happens again, how can I solve it?
That's a common problem with the MIUI 11 update, the phone takes too much time to charge system files while updating, and that results in a bootloop that isn't really a bootloop, bootloader tries to recover the phone and solves the problem automatically but requires to reboot some times, after that the phone seems to work normally but is recommended to do unlock process with mi unlock after successful update, and after that do a clean flash with fastboot method using mi flash tool

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