Huawei P9 Mini lite problem (Boot loop, no able to use recovery) - General Questions and Answers

Hello.
I am Finnish, so I try to tell my problem with correct english.
I have a Huawei P9 Mini Lite phone with Android 7, stock ROM. I unlocked the bootloader. I tried to install custom recovery, TWRP, but it failed, must have been wrong version, for other P9 model. I used Windows software just for for Huawei phones, that you can use to unlock, relock bootloder, root, and many stuff (I cannot remember the name of that software, it works in command prompt window). Situation was kind of messy, but after unlocking, I was able to boot phone to Android OS, only entering eRecovery first, and there press the "reboot" option. So I thought if I relock the bootloader, it maybe helps. After relocking, I rebooted my phone, and I got notification, that there is some problem with file system, and I must do factory reset. It offered me that option right away, so I clicked factory reset. After that, phone went into boot loop state, and also there is a warning screen, about that phone cannot be trusted, because of bootloader is unlocked-relocked. Cannot remember clearly, because the warning screen appears only for few seconds. I was able to press power, vol up/down buttons, that are mentioned in warning screen to enter recovery or continue etc., but it doesn´t help. Huawei logo appears, phone vibrates, and then it starts again... I cannot enter eRecovery anymore. I can enter to normal stock recovery only when I connect USB cable to PC, and press power and vol down, but there is no options to anything. Only notification, that I must connect phone to computer with USB cable, and I did that already. But computer doesn´t recognize my phone, so I cannot do nothing by using computer to try factory reset or something else. In a simple way, I have drivers on my PC for USB, and Huawei software too, but I cannot connect phone to PC. Interesting thing is, that Huawei software on my PC recognizes that there is my phone, when I use USB cable, but there is no connection between phone and PC. So how I can do anything to my phone, when I cannot use my PC to work with my phone? Battery is not removable, and I also let my battery to go empty, and when I connected phone to charger after that, and later tried to turn it on, boot loop started again.

[WANTED!!!] TWRP port for Huawei SLA-L02
Hi and welcome to this forum.
I apologize for the late reply. In the meantime, did you resolve the issue?
Is your device a Huawei SLA-L02?
If you still need help for the above-mentioned smartphone, let me know.
Thanks and greetings

can you please help me I need help because this is happening to me and can you please respond fast

Simon Šircelj said:
can you please help me I need help because this is happening to me and can you please respond fast
Click to expand...
Click to collapse
You can follow this guide.
Make sure that the build number ends in an even number (if your phone is a dual-sim model). For example, SLA-L22C432B150
In order to recover Android properly, it's necessary to discover which build number is installed now on your phone. So please, turn off your phone. Plug your phone to a computer by a usb cable, then hold down simultaneously the volume down button and the power button, so that the FASTBOOT&RESCUE MODE can start on your phone. Then, on Windows, run a command prompt as administrator and move to the directory where there are fastboot and adb.
Now, type and enter the following command:
Code:
fastboot oem get-build-number
Then, post the returned result, thanks.

Related

[Q] Nexus S not appearing in device manager in fastboot

I'm attempting to flash clockwork recovery and can't get the phone to respond to fastboot devices when in fastboot mode. I've tried everything I can find with regards to the drivers (pdanet, usbdeview, etc) and I can get google's and pdanet's drivers working fine with the phone booted normally (responds to adb devices). The problem seems to be that windows appears not to even notice that the phone is plugged in in fastboot mode and does not appear in the device manager, making the manual installation of drivers an impossibility.
Anyone know how to fix this?
stoo said:
I'm attempting to flash clockwork recovery and can't get the phone to respond to fastboot devices when in fastboot mode. I've tried everything I can find with regards to the drivers (pdanet, usbdeview, etc) and I can get google's and pdanet's drivers working fine with the phone booted normally (responds to adb devices). The problem seems to be that windows appears not to even notice that the phone is plugged in in fastboot mode and does not appear in the device manager, making the manual installation of drivers an impossibility.
Anyone know how to fix this?
Click to expand...
Click to collapse
in the main setting, application, developer settings.. is usb debugging enabled?
stoo said:
I'm attempting to flash clockwork recovery and can't get the phone to respond to fastboot devices when in fastboot mode. I've tried everything I can find with regards to the drivers (pdanet, usbdeview, etc) and I can get google's and pdanet's drivers working fine with the phone booted normally (responds to adb devices). The problem seems to be that windows appears not to even notice that the phone is plugged in in fastboot mode and does not appear in the device manager, making the manual installation of drivers an impossibility.
Anyone know how to fix this?
Click to expand...
Click to collapse
When I first set up ADB and Fastboot on my pc, I was getting a response when writing 'adb devices' in the console. However, 'fastboot devices' returned absolutely nothing.
Solution (with phone connected to pc and usb debugging cheched):
1-shut down the phone
2-press and hold Volume Up key + Power
3-once in bootloader interface, in the pc command prompt, type 'fastboot devices'.
Voila!
By the way, don't mount the phone as usb storage device.
Thanks for the responses guys but yes, USB debugging is enabled and yes, I've used that way to get to fastboot mode as well as adb reboot bootloader
Hi stoo
I have a same issue - did you managed to find solution for yours?
Cheers,
Wiktor
vstar said:
Hi stoo
I have a same issue - did you managed to find solution for yours?
Cheers,
Wiktor
Click to expand...
Click to collapse
easy way to set up fastboot
Any solution
Have the same problem: locked bootloader, not rooted 4.1.2. In ADB everything is ok, drivers ok (in device manager), can get it through "adb devices". But when I boot in fastboot (adb reboot bootloader), I hear the ti-da windows sound (usb unpluged - from adb session), but no ta-di when the phone re-boot in fastboot. No exclamation mark in device manager, nothing. The USB receive nothing when in fastboot. Is it possible that the fastboot image is corrupted? Can I reflash it? Or any other advice?
Thanks
EDIT - SOLVED - at least this step
The problem was the famous "broken power button"! I knew that I had problems with the power button (didn't work - that's why I try to flash a rom (4.2.1 or customized) with sleep tile in notification area).
I thought that the button is all the time OFF and don't switch to ON, but I finally understood that when when I boot in fastmode it freeze before installing device on the PC (I also had no volume up / down navigation in fastboot, a sign that it was frozen). So I ended to consider that the power button was permanently in ON position. I opened my phone and I measure the impedance on the power button. I had ~ 4ohms in off position of the button and 1.8 ohms (cheap multimetter.... probably should be almost 0) in on position. I measured also on volume switch where I had ~ infinite on off position, so I concluded that the button if blocked. I tried to see if I can resurrect it but no choice, so I took it off (unsoldered). I put the battery and the USB cable and boot it. From ADB I reboot it in fastboot and voila! The device popped in device manager! One problem solved! BUT...
I tried to use the Nexus Root Toolkit and it boots in fastmode and try to unlock the bootloader, but it asked me on phone screen if I agree for unlocking. I was able to use the volume to select Yes but I couldn't choose it with power! I had no option but to take the battery off. Starting from that point it was almost impossible to power it again. When I plugged the USB it shown the battery icon (charging). I tried every trick that I found on web, but nothing worked (even to fast plug / unplug many times the USB to overcharge it, but nothing). I was able only by pressing on the middle of volume (so Up and DOWN in the same time) and plus the USB to get to the screen of unlocking bootloader, but without the options YES/NO on the screen. Seems that it saves this state between boots, but why no option? Finally I was unable to boot at all, and it is like totally bricked
I thought that the power button is a simple switch ON / OFF, so I soldered 2 wires and I tried to touch them (short circuit) to simulate the ON, but nothing happened. Is it the button more complex that a simple switch? no ideea...
So now have a better phone than before (at least theoretically it should be able to fastboot), but it values zero because I can't power it on....
OK So I am in the exact same situation.
Nexus S, Broken power button, adb can see the device, fastboot cannot. fastboot cannot be navigated with the volume keys.
I also want to put an other rom onto it, but firstly I want to put TWRP recovery on it, as it supports touch, CW needs the power
button which like mentioned does not work.
I would rather not unsolder my power button to get into fastboot, any suggestions on how that might still be achieved?
thx
catalinu said:
Have the same problem: locked bootloader, not rooted 4.1.2. In ADB everything is ok, drivers ok (in device manager), can get it through "adb devices". But when I boot in fastboot (adb reboot bootloader), I hear the ti-da windows sound (usb unpluged - from adb session), but no ta-di when the phone re-boot in fastboot. No exclamation mark in device manager, nothing. The USB receive nothing when in fastboot. Is it possible that the fastboot image is corrupted? Can I reflash it? Or any other advice?
Thanks
EDIT - SOLVED - at least this step
The problem was the famous "broken power button"! I knew that I had problems with the power button (didn't work - that's why I try to flash a rom (4.2.1 or customized) with sleep tile in notification area).
I thought that the button is all the time OFF and don't switch to ON, but I finally understood that when when I boot in fastmode it freeze before installing device on the PC (I also had no volume up / down navigation in fastboot, a sign that it was frozen). So I ended to consider that the power button was permanently in ON position. I opened my phone and I measure the impedance on the power button. I had ~ 4ohms in off position of the button and 1.8 ohms (cheap multimetter.... probably should be almost 0) in on position. I measured also on volume switch where I had ~ infinite on off position, so I concluded that the button if blocked. I tried to see if I can resurrect it but no choice, so I took it off (unsoldered). I put the battery and the USB cable and boot it. From ADB I reboot it in fastboot and voila! The device popped in device manager! One problem solved! BUT...
I tried to use the Nexus Root Toolkit and it boots in fastmode and try to unlock the bootloader, but it asked me on phone screen if I agree for unlocking. I was able to use the volume to select Yes but I couldn't choose it with power! I had no option but to take the battery off. Starting from that point it was almost impossible to power it again. When I plugged the USB it shown the battery icon (charging). I tried every trick that I found on web, but nothing worked (even to fast plug / unplug many times the USB to overcharge it, but nothing). I was able only by pressing on the middle of volume (so Up and DOWN in the same time) and plus the USB to get to the screen of unlocking bootloader, but without the options YES/NO on the screen. Seems that it saves this state between boots, but why no option? Finally I was unable to boot at all, and it is like totally bricked
I thought that the power button is a simple switch ON / OFF, so I soldered 2 wires and I tried to touch them (short circuit) to simulate the ON, but nothing happened. Is it the button more complex that a simple switch? no ideea...
So now have a better phone than before (at least theoretically it should be able to fastboot), but it values zero because I can't power it on....
Click to expand...
Click to collapse
Yes, it should have been better for me to have also a possibility to enter in fastboot with the power button blocked in ON position, but I didn't find. And now I know no way how to power it up...
fastboot drivers
http://www.samsung.com/us/support/owners/product/GT-I9020PWAATT#
has anybody considered using this executable from samsung ..
from what i understood when installing it ,it only unzips the contents at programfiles/Samsung/drivers
then you can check this thread to install them spesifically http://forum.xda-developers.com/showthread.php?t=1901617
..In short.
Go to
"Device Manager"
find
"Android 1.0" or something like that (i had my device in fastboot/bootloader mode, dont know if it was necessary)
install drivers from the drivers directory and install
P.S. Mine is an ordinary 9023nexus s (slcd) though
be a bit more careful with nexus s4g

[Help] Bricked my Nexus what's next? :(

Hi, this situation is kind of strange and I hope it's just the battery and not the whole goddamn phone.
What I'm dealing with at the moment is:
The phone doesn't boot
When plugged onto charger or USB cable it boots but stuck at Google logo after a blink and stays there. Also, Home, Back and other buttons are lighten.
When "forcefully" put into fastboot mode, e.g. after plugging it onto USB and instantly pressing Vol Up + Power it stuck there as well, volume rocker no more response neither does the power button. Also, I notice there are no commands at the end like "USB int" etc we see normally.
Fastboot or ADB returns no device found
Please help. I personally believe it could be due to battery, what do you guys think?
Thank you.
As long as you can see the google logo, your device is not bricked. GIve more useful information; like your computer operating system, the last thing you did before this happened, etc.
ej8989 said:
As long as you can see the google logo, your device is not bricked. GIve more useful information; like your computer operating system, the last thing you did before this happened, etc.
Click to expand...
Click to collapse
Thanks. My OS is Windows 8.1 Update 1. The last thing was to install UPDATE-SuperSU to root so that I can install ROM Manager to update Recovery but the installation was aborted so I attempt to flash it via Fastboot with success. Then, wanted to install SlimKat but it couldn't let me mount USB storage so that I can put the .zip file. I, then stupidly click on install via ADB but didn't know how to go back so I pulled the battery and powered up; used ADP push command to transfer said the file, but again for some reason I had to pull the battery and since then I am in above position.
Sent from my XT1032 using Tapatalk
Put the device in bootloader and plug it into the computer, be patient, my phone is rather slow to get detected sometimes.. (Up to 30 min.) Check your drivers on the computer, try rebooting the boot loader from just pressing the power button (while in boot loader mode)..
If all else fails, read up on Wugs NRTK page and about ODIN...
Sent from my Nexus S using XDA Premium 4 mobile app
Setting.Out said:
Put the device in bootloader and plug it into the computer, be patient, my phone is rather slow to get detected sometimes.. (Up to 30 min.) Check your drivers on the computer, try rebooting the boot loader from just pressing the power button (while in boot loader mode)..
If all else fails, read up on Wugs NRTK page and about ODIN...
Sent from my Nexus S using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hi, device doesn't go into bootloader without plugging it to computer (I've to press required buttons BEFORE plugging OTG cable). And when it boots in fastboot mode it doesn't let me press any button either. I kept it plugged in for sometime as well when it when it was at Google logo; will try to do the same while in fastboot mode too and let you know. As for drivers, same computer was used before when it was working and it detected just fine immediately (gave me a pain to find the right drivers though - PDANet was a life saver).
EDIT:
I should mention that I broke the OS before this happened by formatting /system folder and wiping other data from CWM recovery - I think, I also rebooted it without flashing the ROM as well.
BaghiXDA said:
Hi, device doesn't go into bootloader without plugging it to computer (I've to press required buttons BEFORE plugging OTG cable). And when it boots in fastboot mode it doesn't let me press any button either. I kept it plugged in for sometime as well when it when it was at Google logo; will try to do the same while in fastboot mode too and let you know. As for drivers, same computer was used before when it was working and it detected just fine immediately (gave me a pain to find the right drivers though - PDANet was a life saver).
EDIT:
I should mention that I broke the OS before this happened by formatting /system folder and wiping other data from CWM recovery - I think, I also rebooted it without flashing the ROM as well.
Click to expand...
Click to collapse
I recently had to update my drivers on my computer.. after it did an update, my phone wasn't recognized..
Try Wugs Nexus Root Toolkit,.. use the options for "bricked".. do this from the bootloader screen (power/volume +)...
I don't have experience with ODIN, so you'll need to read that forum/threads...
Setting.Out said:
I recently had to update my drivers on my computer.. after it did an update, my phone wasn't recognized..
Try Wugs Nexus Root Toolkit,.. use the options for "bricked".. do this from the bootloader screen (power/volume +)...
I don't have experience with ODIN, so you'll need to read that forum/threads...
Click to expand...
Click to collapse
The problem is, even the Toolkit doesn't recognize the device no matter what. Even the keys for ODIN don't work, aren't they Home+VOL+ and Power?
EDIT1:
Kept plugged in for little longer as suggested but it heats up (it's too hot here) so I plugged out. Going to be running it off of Linux and lets see how it goes. :fingers-crossed:
EDIT2:
Tried Adam's UnBrickable method on Linux and even that couldn't find device. But that was to be expected since Adam clearly mentioned in his post that this tool isn't for those who see anything on their screen.
Whelp! Currently I can only see I:\ drive in device manager and that's all under portable devices and that's all. I see the same even in BIOS boot options, it's listed as "Google".
Guess need to close this thread now.

[Q] Nexus 5 crashed and wont boot

Hello,
My Nexus 5 is locked, stock 4.4.4 and I never attempted to root or anything.
I ended a call and it got stuck, so I hard turned it off by holding the power button. Since that it wont boot, no matter what I do.
It doesn't respond to holding just the power button, and I managed a couple of times to get into fastboot, but whatever option I chose there it just turned back off. Now I can't get it into fastboot. When it was in fastboot, it was recognized as "Android", and now isn't recognized at all (because it's turned off). It also doesn't respond to charging.
I am desperate, please help me!
Thanks.
ccpro said:
Hello,
My Nexus 5 is locked, stock 4.4.4 and I never attempted to root or anything.
I ended a call and it got stuck, so I hard turned it off by holding the power button. Since that it wont boot, no matter what I do.
It doesn't respond to holding just the power button, and I managed a couple of times to get into fastboot, but whatever option I chose there it just turned back off. Now I can't get it into fastboot. When it was in fastboot, it was recognized as "Android", and now isn't recognized at all (because it's turned off). It also doesn't respond to charging.
I am desperate, please help me!
Thanks.
Click to expand...
Click to collapse
Is it charged?
Just plug in the charger for sometime and try to turn it on..
If above fails, you need to get into fastboot and first take backup of your sdcard using this method http://forum.xda-developers.com/showthread.php?p=51694433
If there is no important data on your sdcard, get into stock recovery and factory reset your device from there.
If you can't get into fastboot mode and nothing is accessible, contact Google if you purchased your device from play store or else LG!
Mr hOaX said:
Is it charged?
Just plug in the charger for sometime and try to turn it on..
If above fails, you need to get into fastboot and first take backup of your sdcard using this method http://forum.xda-developers.com/showthread.php?p=51694433
If there is no important data on your sdcard, get into stock recovery and factory reset your device from there.
If you can't get into fastboot mode and nothing is accessible, contact Google if you purchased your device from play store or else LG!
Click to expand...
Click to collapse
The device is charged, it was 90% when it happened. I can't backup it because it isn't recognized as adb device in the cmd.
I managed to get to the fastboot menu again, but if I choose the recovery mode option it just turns off. Is there another way to force reset it to factory settings?
ccpro said:
The device is charged, it was 90% when it happened. I can't backup it because it isn't recognized as adb device in the cmd.
I managed to get to the fastboot menu again, but if I choose the recovery mode option it just turns off. Is there another way to force reset it to factory settings?
Click to expand...
Click to collapse
Are the drivers properly installed on your PC?
Had you enabled USB Debugging? (If you remember then good)
If your device is not recognized, then you can't troubleshoot it. If it's recognized, then you can either use this thread http://forum.xda-developers.com/showthread.php?t=2513701
Or get into recovery any how and factory reset.
Just plug in your charger and try again
If above fails, you need to connect Google and RMA your device.

Screen turns off after entering PIN

Hello guys,
I just replaced screen on my 64GB OPO. Phone was fine before screen broke and I had a PIN lock on it. Now, when I turn on phone, I cannot do anything on my phone besides pulling down notification bar and swipe notifications. If I try to unlock by entering my PIN, screen turns off right after. If I enter wrong PIN, it will say Wrong PIN, but as soon as I enter right PIN, screen turns off.
I'm not sure why this is happening. I decided to boot into recovery and reflash the ROM. I hold Power + Vol Down, but phone starts booting normally, no recovery. Then, I try to go into Fastboot by Power + Vol UP, and phone boots normally, no fastboot. At this point, I cannot access recovery or fastboot. Then, I try ADB on laptop, I get "Unauthorized." I can't authorize ADB RSA dialog on my phone because as I said, when I enter my PIN to unlock my phone, screen turns off. Recovery, Fastboot, and ADB worked perfectly before replacing screen.
Anyone know how to fix this?. Thank you
TL;DR:
Replaced screen. Entering my PIN turns screen off immediately. No recovery, No fastboot, ADB gives "Unauthorized" Error.
xymic said:
Hello guys,
I just replaced screen on my 64GB OPO. Phone was fine before screen broke and I had a PIN lock on it. Now, when I turn on phone, I cannot do anything on my phone besides pulling down notification bar and swipe notifications. If I try to unlock by entering my PIN, screen turns off right after. If I enter wrong PIN, it will say Wrong PIN, but as soon as I enter right PIN, screen turns off.
I'm not sure why this is happening. I decided to boot into recovery and reflash the ROM. I hold Power + Vol Down, but phone starts booting normally, no recovery. Then, I try to go into Fastboot by Power + Vol UP, and phone boots normally, no fastboot. At this point, I cannot access recovery or fastboot. Then, I try ADB on laptop, I get "Unauthorized." I can't authorize ADB RSA dialog on my phone because as I said, when I enter my PIN to unlock my phone, screen turns off. Recovery, Fastboot, and ADB worked perfectly before replacing screen.
Anyone know how to fix this?. Thank you
TL;DR:
Replaced screen. Entering my PIN turns screen off immediately. No recovery, No fastboot, ADB gives "Unauthorized" Error.
Click to expand...
Click to collapse
https://forum.xda-developers.com/oneplus-one/general/tool-oneplusrecovery-tool-v1-0-restore-t2991851
You can use this,it does not uses fastboot and instead uses hardware debugging port.
Also using this on Xp system will make it easier to detect the device.
Mr.Ak said:
https://forum.xda-developers.com/oneplus-one/general/tool-oneplusrecovery-tool-v1-0-restore-t2991851
You can use this,it does not uses fastboot and instead uses hardware debugging port.
Also using this on Xp system will make it easier to detect the device.
Click to expand...
Click to collapse
I looked at that tool before I made this thread and in 3rd step, it says to press Power + Vol Up? Doesn't that mean you have to be in fastboot? Anyway, I tried it in Windows 10 and it didn't do anything. My phone gets detected by my laptop and everything. I will try in Windows XP and see if anything changes.
xymic said:
I looked at that tool before I made this thread and in 3rd step, it says to press Power + Vol Up? Doesn't that mean you have to be in fastboot? Anyway, I tried it in Windows 10 and it didn't do anything. My phone gets detected by my laptop and everything. I will try in Windows XP and see if anything changes.
Click to expand...
Click to collapse
No, power+vol+ is actually done to trigger the qualcomm port,if your device can't boot to fastboot,it means it's actually dead then your pc should be able to detect it as "Qhs_bulk" or "usb qcom diagnostics 9006".
Make sure you install the drivers given in the thread or Qualcomm 2012 drivers.Again this procedure doesn't work on fastboot/adb drivers!
You'll have to disable driver signature check on win8/10,Xp works without any issues.
Mr.Ak said:
No, power+vol+ is actually done to trigger the qualcomm port,if your device can't boot to fastboot,it means it's actually dead then your pc should be able to detect it as "Qhs_bulk" or "usb qcom diagnostics 9006".
Make sure you install the drivers given in the thread or Qualcomm 2012 drivers.Again this procedure doesn't work on fastboot/adb drivers!
You'll have to disable driver signature check on win8/10,Xp works without any issues.
Click to expand...
Click to collapse
Oh ok. I will try soon. I'll report back with results.
Thanks for your help man!
xymic said:
Oh ok. I will try soon. I'll report back with results.
Thanks for your help man!
Click to expand...
Click to collapse
Click "Thanks" button

Hard brick without fastboot enabled

Hello guys.
I need your help. My phone bricked itself. I left it on charge for the night and faced a black screen issue next day. Bootloader is not unlocked, so I can't enter the fastboot mode. When I press and hold all three buttons I see Mi logo for some time and nothing after. When I connect it to PC via usb it connects after some time but almost instantly disconnects. During that short period of connected state I see usb serial device(COM7) in device manager which disappears then. Then 20-40 sec pause and the same connection and disconnection. Of cource, miflash doesn't see it at all when I try to flash it. I have no experience with disassembling so I cannot flash the phone using motherboard directly or try to enter fastboot by pulling out and in battery. Any thoughts what it can be and how to fix it? Appreciate any helpful info related. I saw a bunch of articles and cases but everything got stuck because of that frequent usb toggling. Not much you can do when you can't even connect
T_Hladiuk said:
Hello guys.
I need your help. My phone bricked itself. I left it on charge for the night and faced a black screen issue next day. Fastboot is not enabled. When I press and hold all three buttons I see Mi logo for some time and nothing after. When I connect it to PC via usb it connects after some time but almost instantly disconnects. During that short period of connected state I see usb serial device(COM7) in device manager which disappears then. Then 20-40 sec pause and the same connection and disconnection. Of cource, miflash doesn't see it at all when I try to flash it. Fastboot isn't enabled for sure because I cannot enter that mode. I have no experience with disassembling so I cannot flash the phone using motherboard directly or try to enter fastboot by pulling out and in battery. Any thoughts what it can be and how to fix it? Appreciate any helpful info related. I saw a bunch of articles and cases but everything got stuck because of that frequent usb toggling. Not much you can do when you can't even connect
Click to expand...
Click to collapse
Excuse me, but, there are a lot of errors and misunderstanding in your post, so you should need to sort them out, to can advance on this.
Fastboot doesn't need to be enabled, fastboot is always there, you just need to press the right buttons to send it to this mode.
USB debugging enables the ADB connection, most probably, you don't need it to fix your device.
Although this said, keep in mind that your device must have the bootloader unlocked, in order to use fastboot to flash.
If this is not the case, then you should need to use a different mode, the EDL mode, also called QHUSB-9008.
You can try, firstly, by booting in stock recovery, formatting data, sometimes this may fix the bootloop issue.
SubwayChamp said:
Excuse me, but, there are a lot of errors and misunderstanding in your post, so you should need to sort them out, to can advance on this.
Fastboot doesn't need to be enabled, fastboot is always there, you just need to press the right buttons to send it to this mode.
USB debugging enables the ADB connection, most probably, you don't need it to fix your device.
Although this said, keep in mind that your device must have the bootloader unlocked, in order to use fastboot to flash.
If this is not the case, then you should need to use a different mode, the EDL mode, also called QHUSB-9008.
You can try, firstly, by booting in stock recovery, formatting data, sometimes this may fix the bootloop issue.
Click to expand...
Click to collapse
Sorry, you are right. I am not good at firmware and all the related stuff. I've updated the post. I was confused about 'fastboot' and 'bootloader'. I meant bootloader was not unlocked. But about EDL - Redmi 6 has MediaTek SoC, but still it has something similar to EDL mode. Anyway, you showed me what I can try to do next. I will try to use preloader like here https://forum.xda-developers.com/t/...icked-redmi-note-9-merlin-hard-brick.4347025/
Thanks a lot!
T_Hladiuk said:
Sorry, you are right. I am not good at firmware and all the related stuff. I've updated the post. I was confused about 'fastboot' and 'bootloader'. I meant bootloader was not unlocked. But about EDL - Redmi 6 has MediaTek SoC, but still it has something similar to EDL mode. Anyway, you showed me what I can try to do next. I will try to use preloader like here https://forum.xda-developers.com/t/...icked-redmi-note-9-merlin-hard-brick.4347025/
Thanks a lot!
Click to expand...
Click to collapse
Ok, I didn't check exactly the processor on Redmi 6, due to lack of time. Anyway, a MediaTek device is even easier to fix (in the paper). Qualcomm's devices have EDL (Emergency DownLoad) mode, and MTK has Download mode (apart from many more modes.)
You also, can follow this guide, with more visual insights https://forum.xda-developers.com/t/...india-6s-using-spflash-tool-for-free.4222027/ of course replace carefully the files from the ones that are for your device.
And this tool also can be useful, to take a complete backup, after to try a thing https://github.com/bkerler/mtkclient
Be advised, that, in any case you have to make a complete format, in SPFT only use the Download option.
Just as a side note, even your bootloader is locked, you always can enter to fastboot mode, the case is that is almost useless, specially in this situation, because a Xiaomi locked device can't be flashed through fastboot.
And to enter to fastboot mode, it's not the three buttons, you have within the various options, as ADB and commands are not available, you can enter manually, either, pressing the volume minus + PWR at same time, or pressing the volume minus button, at same time you connect your device to your PC.

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