Guys, if anyone could help me out it would be greatly appreciated. Ok, here's my situation I tried to root my phone using kingroot but it keeps randomly rebooting. So, I've read somewhere that you can change kinguser to supersu by using supersu me. That's what I did now what happened is after installing and rebooting my phone is now in bootloop. So tried reflashing using flashtool but everytime it says that usb debugging must be on and there's no way for me to do that. Is there anyway for me to recover my phone and fix it? Hope you guys can help me.
P.S. Sorry if this is not the right place to post this. Thanks.
huantong said:
Guys, if anyone could help me out it would be greatly appreciated. Ok, here's my situation I tried to root my phone using kingroot but it keeps randomly rebooting. So, I've read somewhere that you can change kinguser to supersu by using supersu me. That's what I did now what happened is after installing and rebooting my phone is now in bootloop. So tried reflashing using flashtool but everytime it says that usb debugging must be on and there's no way for me to do that. Is there anyway for me to recover my phone and fix it? Hope you guys can help me.
P.S. Sorry if this is not the right place to post this. Thanks.
Click to expand...
Click to collapse
Have you installed Sony drivers before using FlashTool?
Only flashtool can recover you from this situation and remember to press up or down button and then connect the USB cable. Then only it will boot into flashmode
Sent from my Xperia ZR using XDA Free mobile app
I've just had a similar experience using kingroot on stock lollipop.. It's a horrible app and of no use really.. This is how i got out of it and rooted my phone properly: download a .ftf stock rom for your region, search in the cross device section for perfcreator, fastboot tool and look in xenius9's thread for a boot.img (recovery, doesn't matter if it's a CM12 img or not for now) and finally a flashable zip supersu and NUT's dual recovery INSTALLER (important this) for ZR..
Place the boot.img in the folder you extracted the fastboot tool to, open perfcreator and point it to your stock ftf firmware and to your supersu zip.. press create and this will make a proper rooted flashable zip firmware, which you place in your SD-card on your phone.. (I used my friends phone to place the firmware onto the SD card and put it back on my hone)
Open the folder with fastboot tool and also include the boot.img.. Power off your phone and press vol-up while you connect your usb cable.. The led will turn blue showing your in fastboot mode, and put the cursor on your pc on a empty space in the fastboot folder, hold shift and right-click... This will open a pop-up and select "open command window here"..
A black screen will appear and type the following: fastboot flash boot boot.img.. press enter
this will take 3 seconds and you will have a working recovery on your phone for now..
Now type in the same black screen: fastboot reboot..
Your phone will boot and you press vol-up or down to get to recovery.. the led will show pink or green ..
wipe your cache/data/system and once done, install the rooted firmware you placed on your sd card.. This will remove the recovery you have installed once you reboot but once you have set your phone up, go to settings/about/build number and press several times until you have unlocked developer options.. go to developer options and check debugging..
connect your phone to the pc, open the dual recovery installer and follow the instructions
You now have a fully rooted phone with recovery installed... Sounds complicated maybe but just take your time and you'll be fine..
Related
Hey there. I'm having a bit of an issue regarding the recovery on my phone. I rooted it quite some time ago but now I'd like to upgrade it to Kitkat 4.4.4 but when I try to enter recovery mode, it just boots normally. I have installed ROM Manager some time ago and I believe I may have changed my recovery, but it was either CWM or TWRP so there's nothing else. I tried using the "Boot into recovery" option but the phone won't go into recovery. I tried many different combinations upon boot but none have worked. Can someone help me, I'm running 4.3 9.2.A.1.210. I have USB Debugging enabled.
Cheers.
Most (or even all) of the custom roms have built-in recovery. So, if you want to flash some custom rom, you extract the "boot.img" from the zip and flash it via FlashTool using fastboot mode (to put Xperia V into fastboot mode hold volume up button while connecting the phone to tbe pc and the led should turn blue. If it turns green then try holding the other volume button.). And then you just select the lightning icon in FlashTool, choose fastboot mode, on the right side in the middle is an option to flash kernel and just find the boot.img you extracted and select it. Keep in mind that your bootloader must be UNLOCKED and you must install fastboot drivers before doing this.
Btw...your phone will stay in the fastboot mode only for a couple of seconds so you have to be quick...I always find the boot.img first, then put my phone into fastboot mode and then just select the image to flash it.
Sent from my Xperia V using XDA Free mobile app
I recently got a z3c and decided to try to get a slim rom on it.
I have done the following:
I unlocked the bootloader.
This was done successfully to the best of my knowledge
The next thing I did was flash a cwm image to by z3c using fastboot. The problem was that I flashed the z3 version on my z3c.
The device would boot but the screen would be blank.
Later I flashed the z3c boot loader named : Z3c_DooMLoRD_AdvStkKernel_v01_FW-105
After this the device goes in a boot loop. I am able to access CWM.
I have tried to root the phone as well as flash the slim rom in an attempt to fix it....
Wiping disk / cache doesn't help.
Also for some reason even though adb drivers are installed I cannot use it so I can't get the twrp install to work.
I have no idea what to do can someone please help?
Thanks,
stp
I have same issue....Phone is ib bootloop...i can still go to fastboot mode....
Anything can be done here????
Flash an factory image with flashtool then you will have original recovery. Then reinstall CWM, maybe smth went wrong.
Tried flashtool---Ended up with errors as attached pic
As i cant bootup my phone...USB Debugging option cant be ticked
I was running SlimLP (unofficial) while bricked my phone....
Anything on that please....
I managed to recover my phone. I don't think you need usb debugging for flash tool. What I did was turn the phone off (power and volume up seem to be the buttons that force shutdown and break the reboot loop).
flashtool will prompt you to connect when you flash the ftf file and you hold power up and volume down when you connect the usb cable. If you have issues flashing (it hanged on me on system.bin) try restarting your computer.
Resolution and Problem Exp
Right after flashing the device recovery through fastboot the USB cable is plugged and that seems to loop the boot loader, so you need to force shutdown while looping by pressing POWER + VOLUME UP, and after that unplug the USB cable. You will notice that on boot now the light is no longer red.
splitthepositive said:
I recently got a z3c and decided to try to get a slim rom on it.
I have done the following:
I unlocked the bootloader.
This was done successfully to the best of my knowledge
The next thing I did was flash a cwm image to by z3c using fastboot. The problem was that I flashed the z3 version on my z3c.
The device would boot but the screen would be blank.
Later I flashed the z3c boot loader named : Z3c_DooMLoRD_AdvStkKernel_v01_FW-105
After this the device goes in a boot loop. I am able to access CWM.
I have tried to root the phone as well as flash the slim rom in an attempt to fix it....
Wiping disk / cache doesn't help.
Also for some reason even though adb drivers are installed I cannot use it so I can't get the twrp install to work.
I have no idea what to do can someone please help?
Thanks,
stp
Click to expand...
Click to collapse
Hi,
I just installed this rom:
http://forum.xda-developers.com/xperia-sp/development/final-solution-rom-lbl-t3073678
Everything went fine. I did all the steps. After installing the ROM and the fixes I chose system reboot from CWM Recovery. Since then I can't turn my phone on. If I press the power button there is a short vibration, but nothing happens.
1. Tried to reset with the button on the back of the phone. No go.
2. Tried all the button combination but can't even get back to recovery.
3. If I connect it to my computer then the led goes green and windows gives me that sound when you connect something new, but after 10 seconds the led turns off and I get the other sound for dismounting device. No diver can see it, neither flashtool does.
4. It doesn't charge. Well, at least the led does not turn on so I guess it's not charging.
Any idea?
You have a kernel problem, Flash with Flashtool the kernel of your rom in fastboot mode (Volume +, and connect your usb cable) with flashtool or if that don't available, flash a stock kernel in fastboot mode (Volume + and connect your usb cable at your phone), when it's flashed, restart your phone
Vic19911992 said:
You have a kernel problem, Flash with Flashtool the kernel of your rom in fastboot mode (Volume +, and connect your usb cable) with flashtool or if that don't available, flash a stock kernel in fastboot mode (Volume + and connect your usb cable at your phone), when it's flashed, restart your phone
Click to expand...
Click to collapse
From where can I get a proper kernel? Does it matter that it has locked bootloader?
Also which flashtool should work?
fishmong3r said:
From where can I get a proper kernel? Does it matter that it has locked bootloader?
Also which flashtool should work?
Click to expand...
Click to collapse
Normally, you can flash the kernel included in your rom, it's a file name boot.img, flashtool is good i think, can you send error messages with flashtool if you have any messages
fishmong3r said:
Hi,
I just installed this rom:
http://forum.xda-developers.com/xperia-sp/development/final-solution-rom-lbl-t3073678
Everything went fine. I did all the steps. After installing the ROM and the fixes I chose system reboot from CWM Recovery. Since then I can't turn my phone on. If I press the power button there is a short vibration, but nothing happens.
1. Tried to reset with the button on the back of the phone. No go.
2. Tried all the button combination but can't even get back to recovery.
3. If I connect it to my computer then the led goes green and windows gives me that sound when you connect something new, but after 10 seconds the led turns off and I get the other sound for dismounting device. No diver can see it, neither flashtool does.
4. It doesn't charge. Well, at least the led does not turn on so I guess it's not charging.
Any idea?
Click to expand...
Click to collapse
If you have locked bootloader you must flash the stock kernel trough the flashmode, williams kernel is custom it will brick your device
Spasik said:
If you have locked bootloader you must flash the stock kernel trough the flashmode, williams kernel is custom it will brick your device
Click to expand...
Click to collapse
I double checked that it works for locked bootloaded. It's even the name of the thread: [Final Solution ROM][UBL/LBL][V2][ODEXED for extreme smoothness][William's Kernel]
So the issue now is that I can't even install the driver (windows 10) as the device is being disconnected after 10 seconds of plugging in. I got the tft file now for the stock kernel and installed flashtool but it can't detect the phone (in that 10 secs), it says that driver is missing. Tried the C:\Flashtool\drivers\Flashtool-drivers.exe and selected the necessary drivers but it never succeeds. Attached the screenshot of the failure of installing the drivers.
fishmong3r said:
I double checked that it works for locked bootloaded. It's even the name of the thread: [Final Solution ROM][UBL/LBL][V2][ODEXED for extreme smoothness][William's Kernel]
So the issue now is that I can't even install the driver (windows 10) as the device is being disconnected after 10 seconds of plugging in. I got the tft file now for the stock kernel and installed flashtool but it can't detect the phone (in that 10 secs), it says that driver is missing. Tried the C:\Flashtool\drivers\Flashtool-drivers.exe and selected the necessary drivers but it never succeeds. Attached the screenshot of the failure of installing the drivers.
Click to expand...
Click to collapse
You must turn off driver verification, g00gle it
Spasik said:
You must turn off driver verification, g00gle it
Click to expand...
Click to collapse
OK, I'm getting closer. Thank you so far.
So drivers are installed. Computer can detect phone. All I can't do is to boot my phone to fast boot. It's always in flash mode not fast boot. I'm trying to power on and pushing the volume down, but no go.
Code:
26/049/2015 21:49:27 - INFO - Device connected in flash mode
26/049/2015 21:49:32 - INFO - Now plug your device in Fastboot Mode
fishmong3r said:
OK, I'm getting closer. Thank you so far.
So drivers are installed. Computer can detect phone. All I can't do is to boot my phone to fast boot. It's always in flash mode not fast boot. I'm trying to power on and pushing the volume down, but no go.
Code:
26/049/2015 21:49:27 - INFO - Device connected in flash mode
26/049/2015 21:49:32 - INFO - Now plug your device in Fastboot Mode
Click to expand...
Click to collapse
you must start with phone turned off, fastboot doesnt work because you have hardlocked bootloader
pick stock ftf of your choice let it load and when it prompts you connect turned off phone with volume- pressed
then root it with towelroot and install super su, open it and update su binary
when you will be done with that contact me or respond to this post i will help you with next steps
Spasik said:
you must start with phone turned off, fastboot doesnt work because you have hardlocked bootloader
pick stock ftf of your choice let it load and when it prompts you connect turned off phone with volume- pressed
then root it with towelroot and install super su, open it and update su binary
when you will be done with that contact me or respond to this post i will help you with next steps
Click to expand...
Click to collapse
OK, to be honest I don't get any of that. What is towelroot, how to install super su and how to update its binary? Also what do you mean "let it load" (ftf)?
I have to mention that the bootloader is locked because it can't be unlocked.
fishmong3r said:
OK, to be honest I don't get any of that. What is towelroot, how to install super su and how to update its binary? Also what do you mean "let it load" (ftf)?
I have to mention that the bootloader is locked because it can't be unlocked.
Click to expand...
Click to collapse
Yeah i know that your bootloader is not unlockable, by ftf loading i mean that select .ftf you want to flash first and wait until it prepares and prompts you to connect the phone, btw last flashtool that works with sp is flashtool-0.9.18.6 , if you will have problem with understanding that try to search how to flash ftf on xperia sp on youtube i hope you will get it eventually
towelroot is an app from geohot you can get it here https://towelroot.com/ it can root your device
super su is an app on google play it is free and it controls root apps, in other words it grants or denies root access, once you will gain root with towelroot, open super su and it will prompt you to update binary just select normal and it will work
Spasik said:
Yeah i know that your bootloader is not unlockable, by ftf loading i mean that select .ftf you want to flash first and wait until it prepares and prompts you to connect the phone, btw last flashtool that works with sp is flashtool-0.9.18.6 , if you will have problem with understanding that try to search how to flash ftf on xperia sp on youtube i hope you will get it eventually
towelroot is an app from geohot you can get it here https://towelroot.com/ it can root your device
super su is an app on google play it is free and it controls root apps, in other words it grants or denies root access, once you will gain root with towelroot, open super su and it will prompt you to update binary just select normal and it will work
Click to expand...
Click to collapse
I have version 0.9.19.10. And I can't select the file before I connect the phone with fastboot. The file has to be selected after. This is the tutorial I try to follow:
https://www.youtube.com/watch?v=IXTzA7Qrrv4
So my problem is still that I can't get into fastboot to flash the kernel. So towelroot and super su are not my options until I can't get into the system.
Any other clue on how to get it flashed?
fishmong3r said:
I have version 0.9.19.10. And I can't select the file before I connect the phone with fastboot. The file has to be selected after. This is the tutorial I try to follow:
https://www.youtube.com/watch?v=IXTzA7Qrrv4
So my problem is still that I can't get into fastboot to flash the kernel. So towelroot and super su are not my options until I can't get into the system.
Any other clue on how to get it flashed?
Click to expand...
Click to collapse
you cant use fastboot with your bootloader locked that is the point there is NO WAY of flashing custom kernel with bootloader locked or you will brick your device, only way to flash kernel on lbl is to flash stock kernel in your case WITH FLASHTOOL TROUGH FLASHMODE
https://www.youtube.com/watch?v=Sz3LVw_MfzQ this may help you understand what i am trying to tell you
Spasik said:
you cant use fastboot with your bootloader locked that is the point there is NO WAY of flashing custom kernel with bootloader locked or you will brick your device, only way to flash kernel on lbl is to flash stock kernel in your case WITH FLASHTOOL TROUGH FLASHMODE
https://www.youtube.com/watch?v=Sz3LVw_MfzQ this may help you understand what i am trying to tell you
Click to expand...
Click to collapse
I understand what you are saying. But flashtool doesn't let me flash kernel in flash mode.
So it's a catch 22? After all this means that it's already bricked, isn't it?
fishmong3r said:
I understand what you are saying. But flashtool doesn't let me flash kernel in flash mode.
So it's a catch 22? After all this means that it's already bricked, isn't it?
Click to expand...
Click to collapse
You are not trying to flash kernel only, but that is possible too, you are trying to flash whole stock firmware.
Yes your phone is bricked because you flashed custom kernel on LBL.
Download some .205 or .207 firmware from android development section of xperia sp xda forum and flash it with flashtool.
There are plenty of tutorials online, i dont mean to be rude but you just must try and understand it yourself.
Here you have link for firmwares http://forum.xda-developers.com/showthread.php?t=2311964
just flash the ftf and phone should be ok, if you will be succesfull i can help you with rooting and flashing something suitable for locked bootloader xperia sp
Good luck
Spasik said:
You are not trying to flash kernel only, but that is possible too, you are trying to flash whole stock firmware.
Yes your phone is bricked because you flashed custom kernel on LBL.
Download some .205 or .207 firmware from android development section of xperia sp xda forum and flash it with flashtool.
There are plenty of tutorials online, i dont mean to be rude but you just must try and understand it yourself.
Here you have link for firmwares http://forum.xda-developers.com/showthread.php?t=2311964
just flash the ftf and phone should be ok, if you will be succesfull i can help you with rooting and flashing something suitable for locked bootloader xperia sp
Good luck
Click to expand...
Click to collapse
Wait a sec. It seems I could flash the kernel in flash mode.
It was keep disconnecting but finally the sony logo appeared and it booted to the system. It doesn't work properly, and it's very slow, but now I can get into CWM. Do you have any suggestion which ROM should I install on it?
fishmong3r said:
Wait a sec. It seems I could flash the kernel in flash mode.
It was keep disconnecting but finally the sony logo appeared and it booted to the system. It doesn't work properly, and it's very slow, but now I can get into CWM. Do you have any suggestion which ROM should I install on it?
Click to expand...
Click to collapse
yes
this is debloated stock http://forum.xda-developers.com/xperia-sp/development/rom-binomical-v1-1-final-t3111555
works great
and this is lbl cm11 http://forum.xda-developers.com/xperia-sp/development/rom-cyanogenomod-11-xperia-sp-t3041391
great aosp rom for lbl device
Spasik said:
yes
this is debloated stock http://forum.xda-developers.com/xperia-sp/development/rom-binomical-v1-1-final-t3111555
works great
and this is lbl cm11 http://forum.xda-developers.com/xperia-sp/development/rom-cyanogenomod-11-xperia-sp-t3041391
great aosp rom for lbl device
Click to expand...
Click to collapse
OK, I will do that part tomorrow. I'm a bit tired of all this sh*t.
Thank you for all your help, I do really appreciate it.
fishmong3r said:
OK, I will do that part tomorrow. I'm a bit tired of all this sh*t.
Thank you for all your help, I do really appreciate it.
Click to expand...
Click to collapse
No problem, no need to thank me just hit thanks button, I'm glad I helped you
Hi, this is my first post on this forum.
At the beginning I'm sorry for bad English, I am using the translator.
I have a lenovo k3 note and everything worked as it should have, until it returned from China (I sent it there, then I received a reply that the screen is damaged, do I decided to fix it here, in Poland).
Currently, I cannot install CWM or TWRP. I tried to do it in many different ways. When the phone turned off, I hold volume buttons and power, but then it showed me a message at the bottom of the screen: fastboot mode.
I tried to install twrp or CWM using adb commands. I was just trying to run recovery using commands. I also tried different versions of recovery using flashtool and the result was the same. Three buttons and a message about fastboot mode.
I can install new rom using only flashtoola and I did it. I currently have K50a40_S427_160518_ROW, android 6.0.
I read somewhere that I can have a locked bootloader. I tried the command fastboot oem unlock by adb but it did not work.
Please give me a hint or tell me what to do step by step, and I will still try to properly install twrp.
Thank you in advance.
Flashing recovery
You Can flash Recovery using SP flash tool if you have MT6752(check in device information) using this method or (if You Have other model please update the scatter file and recovery with yours)
Install all the drivers.
[*]Enable USB debugging and ALLOW OEM UNLOCK in settings.
Now download & extract SP flash tool from here
Now Download and extract TWRP recovery from here
Now, Go to Options>Download and check the two checkboxes
(Make sure Download only is selected)Load the Scatter file and click download button.
Connect your device Powered OFF
Check if recovery is Installed (if you Have Problems Rooting follow this Guide)
Ok, I get down to work. What is the decryption key to mega.nz to the link you provided?
Hello everyone, I am new to this forum so please forgive if I misplaced this thread
The problem is next:
I want to root my P8 Lite (and convert to dual sim but first things first). I have read some threads here, also that mega-thread, did everything step by step.
First I have requested unlock code from Huawei and successfully unlocked bootloader (fastboot shows it's unlocked and booting in bootloader shows Phone UNLOCKED).
Second, I installed ADB drivers, HiSuite recognizes my phone, adb devices shows it, everything runs smoothly. I downloaded and tried bat file that automatically roots it (the lazy way ) but not success so far. Then I rebooted completely and did everything step by step using cmd.
1. adb reboot bootloader (OK)
2. fastboot flash recovery recovery.img (OK)
3. fastboot reboot (OK)
4. adb push UPDATE_SuperSU-v2.46.zip /su.zip (OK)
5. adb shell /sbin/recovery --update_package=/su.zip (SEGMENTATION FAULT)
I am stuck at step 5, clearly. Also I tried commands one by one:
adb shell
/sbin/recovery
But that returns Permission Denied.
Tried that again through Minimal and ADB Fastboot, through SDK, but no success so far. Thought that Windows 10 may be the problem, but the same was on laptop with Windows 7.
I would appreciate any help here.
I don't know. In my opinion, you can put the SuperSU flashable zip into your phone through USB, and boot into TWRP Recovery, mount /system, then flash it.I'm not sure about it. Maybe it can help.
P.S.: You can see https://forum.xda-developers.com/p8...de-to-unlock-bootloader-t3150616/post61708277this post, find the UPDATE-2.
Sent from my HUAWEI CHM-TL00H using XDA Labs
I can't boot into recovery, it shows nothing. There is a sound that usb is connected but screen remains black, I can't install twrp over stock recovery. Is sd card necessary or this can be done just with phone memory?
popcorn91 said:
I can't boot into recovery, it shows nothing. There is a sound that usb is connected but screen remains black, I can't install twrp over stock recovery. Is sd card necessary or this can be done just with phone memory?
Click to expand...
Click to collapse
I had some problems installing TWRP and SU after my update to B588.
I used Xepeleato's TWRP edition with the 2 zip SU installation (I have so many files, that I cannot remember where I got them ).
So, flashed TWRP, then connected via usb (if I am not mistaken) and then via adb rebooted into recovery. Then flashed both of the files for the SU.
I will try doing that with install from sd card, from service menu, otherwise I can't install over stock recovery.
Also can't root it. I soft bricked my phone 3 times and then had to flash Cust, Boot and all the other images using a script I found on the Megathread and set it up all over again. I have an unlocked bootloader but can't root it and I am too scared to try again.
That's my problem, first time softbricked it, then I flashed stock recovery and fixed it, bootloader unlocked but can't root.
Just in case you are on B588: I had problem with the official recovery of the build (don't know for sure if it is different from the others) and flashed the one extracted from B584 and then flashed TWRP.
I'm on B585
if I were you, i'd flash twrp, through adb and then boot into recovery through adb also and flash the 2 zip SU files at once. clear cache and dalvik and reboot.
spirto82 said:
if I were you, i'd flash twrp, through adb and then boot into recovery through adb also and flash the 2 zip SU files at once. clear cache and dalvik and reboot.
Click to expand...
Click to collapse
How did you flash the one from B584?
EDIT: Nevermind, I did it. I booted to recovery through adb and TWRP was working
Did it, found some chinese twrp that worked for me. Now other problem came up
I tried to downgrade to Lollipop and setup was successfull. When phone restarted display wasnt showing anything,just bars and flashes and pixels etc, startup sound is there but no preview. Fastboot system flash returns failed, also erase.
popcorn91 said:
Did it, found some chinese twrp that worked for me. Now other problem came up
I tried to downgrade to Lollipop and setup was successfull. When phone restarted display wasnt showing anything,just bars and flashes and pixels etc, startup sound is there but no preview. Fastboot system flash returns failed, also erase.
Click to expand...
Click to collapse
1) let your phone charge - in case you don't have enough battery.
2) Try to download your desired build.
3) download Huawei extractor and with this, extract boot, recovery, cust and system.
4) search a bit on the big thread (root, unbrick convert etc) on how to enter fastboot. I cannot remember the exact steps, but there is a way for sure.
5) initiate adb and flash all the 4 images you extracted.
This is in general what you have to do.
Wishing you good luck!
If I find something more I'll let you know.
PS : when I had mine bricked I entered bootloader by following these steps if I am not mistaken :
Connect phone to pc
Keep Pressing the power button and when the screen turns off, press and hold the volume up (while pressing the power button).
When the phone vibrates, release the power button.
Tried everything, boot, recovery and cust flashed successfully but sytem "cant load system.img" even with using -S 512M or 1G or 256M. I took it for a repair, hope they will sort it out.
The guy from service did not succeed, he told me that he tried everything that I have, and that the phone can't be repaired. But I did.
I downloaded the latest firmware for my country, formatted SD card as FAT32, put it in my phone and rebooted, so folders Android, LOST.DIR and System Volume Information were created. I put the UPDATE.APP in dload folder on my SD card. Then I let phone charge fully until LED indicator was green. Plugged out the charger, and pressed Volume Up + Volume Down + Power. When the phone restarted, on startup vibration I let go power button and kept holding Volume Up and Down for about 3s. Then when I let them, display went completely black and nothing happened. I put the charger but it wasn't charging so I hoped that it started forced upgrade. Left it on the table and about 15min later it vibrated again on restart and - success!! Huawei logo on screen, booting up, EMUI optimizing device. So happy I solved it. Also thanks for answering guys!