guys recently I hard bricked my phone after installing lenovo lollipoprom.I also installed cwm through pc but not opened recovery. Thank to ed300 for providing custom recovery for lollipop I unbricked in very simple way
This will work for you if u are not able to enter into recovery
First install minimal adb and fastboot on your PC
Then connect your phone
Then transfer img file to adb and fastboot folder
Then open command window by right clicking and shift at same time
Disconnect ur phone type fastboot flash recovery 'img file name'
Waiting for device will be seen on CMD
Then enter into fastboot mode and then connect ur phone to PC
It will automatically start installing recovery
Please help me my lenovo a6000 is not booting into system or recovery only fastest even after factory rest clear cache and dalvik installing stock rom ?
How to enter into fastboot mod
please tell me.
jatin vekariya said:
How to enter into fastboot mod
please tell me.
Click to expand...
Click to collapse
Dude seriously..???!!!
I asked you if you could enter in recovery or fastboo mode, and you said no, my phone just vibrates. If you didn't knew how to boot into fastboot you should've asked me right away.
Btw, here are the different key combos:
1) Recovery - Press VOL UP + VOL DOWN + POWER KEY and release POWER KEY once the lenovo logo shows up.
2) Fastboot - VOL DOWN + POWER KEY
3) Download Mode - VOL UP + POWER KEY
Multiple brick solution threads already exist, please search before posting your own.
Thread closed:
http://forum.xda-developers.com/lenovo-a6000/help/unbrick-lenovo-a6000-plus-lenovo-a6000-t3137247
http://forum.xda-developers.com/lenovo-a6000/help/recovery-lost-t3395356/post67247279#post67247279
Related
Hi,
I need these files
1.fastboot flash recovery stock_recovery.smg
2.pudding_stock_unlock
Note : This site went offline http://mophoforum.com/Roms/1FF-sunf...198_7-CM-release-keys-signed-Sprint-US.sbf.gz, I also tried another website which is also not working.
Now the problem is I need this files fastboot flash recovery stock_recovery.smg as feautred here http://forum.xda-developers.com/showthread.php?t=1216143, rest pudding stock.rar also needed.
And according to this http://forum.xda-developers.com/showthread.php?t=1573727 it says that I need to enter into fastboot, however I have tried both method Volume up +Power button and Volume Down + Power button, but I cant enter in to fastboot, what I see is only Starting RSD protocol support
Regards
First of all I would thank Crowds he is the best reference that I've to return in case of any problem I face. (He doesn't sleep - any time I ask he immediately supports)
I bought Lenovo K910 and I've managed successfully to install new ROM "VIBEUI_v2.0_1443" and Gapps with Crowds support.
I advised two of my friends to buy this good and cheap phone. For one of them I installed the latest rom successfully. But with the other I had a big problem The phone stuck on Lenovo Logo.
I was trying to install TWRP 2.7.0.0 batch before installing my new ROM, but during installation and after the phone rebooting the batch command screen shows <Waiting for Device> and the phone is stuck on logo screen.
I tried to connect the phone to PC many times, but PC doesn't recognize the phone. When I try to turn off the phone by pressing the power buttons, the phone restart on logo screen like the shown in this video.
I've read in many site that I have to do the following:
Download and install "minimal adb and fastboot"
Just type on the command line without pressing Enter:
Code:
[COLOR="Blue"][B][I]fastboot [COLOR="Plum"][STRIKE]boot[/STRIKE][/COLOR] recovery.img[/I][/B][/COLOR]
you should place your recovery image file in "minimal adb and fastboot" directory
The phone should be disconnected from computer and completely off (press the Power button for 10 seconds - in my case the phone is restarting)
Press and hold both volume buttons, then connect the cable to the PC.
Once the phone vibrate, press Enter to execute the recovery command line
Click to expand...
Click to collapse
In my case when I press and hold power button the phone is restarting on logo screen so I have to wait for battery consumption
I tried many times with TWRP images but it failed...
I tried with CWM image and it succeeded to load, but I don't have otg cable to load recovery or ROM from usb storage (The problem was in installing TWRP and my ROM should has no problem)
I want to flash TWRP on phone not only loading by "minimal adb and fastboot".
I decided to flash TWRP 2.7.1.2 batch through modifying the batch file. I just used fastboot commands
Code:
[COLOR="blue"][I]fastboot oem device-info
fastboot oem unlock
fastboot oem device-info
fastboot [COLOR="Red"][U][B]flash[/B][/U][/COLOR] recovery data/recovery.img
fastboot flash aboot data/lock/emmc_appsboot.mbn
fastboot flash rpm data/lock/rpm.mbn
fastboot flash sbl1 data/lock/sbl1.mbn
fastboot flash dbi data/lock/sdi.mbn
fastboot flash tz data/lock/tz.mbn
fastboot reboot[/I][/COLOR]
Finally I succeeded to install Recovery and phone works well in the new recovery mode and the system mode that I've not update it yet
I want to share you the problem solution in brief:
Download and extract this file "flashrec TWRP v2.7.1.2" from here
Just select without executing "flashrec_Modified.bat" file from the extracted files.
The phone should be disconnected from computer and completely off (press the Power button for 10 seconds or wait for the battery to be almost empty)
Press and hold both volume buttons, then connect the cable to the PC.
Once the phone vibrate, press Enter to execute the recovery batch file
and as me the phone start the recovery mode in TWRP and can be rebooted in system without any problem
i must extract "flashrec TWRP v2.7.1.2 this file on phone or where? can u explain a
agsao said:
First of all I would thank Crowds he is the best reference that I've to return in case of any problem I face. (He doesn't sleep - any time I ask he immediately supports)
I bought Lenovo K910 and I've managed successfully to install new ROM "VIBEUI_v2.0_1443" and Gapps with Crowds support.
I advised two of my friends to buy this good and cheap phone. For one of them I installed the latest rom successfully. But with the other I had a big problem The phone stuck on Lenovo Logo.
I was trying to install TWRP 2.7.0.0 batch before installing my new ROM, but during installation and after the phone rebooting the batch command screen shows <Waiting for Device> and the phone is stuck on logo screen.
I tried to connect the phone to PC many times, but PC doesn't recognize the phone. When I try to turn off the phone by pressing the power buttons, the phone restart on logo screen like the shown in this video.
I've read in many site that I have to do the following:
In my case when I press and hold power button the phone is restarting on logo screen so I have to wait for battery consumption
I tried many times with TWRP images but it failed...
I tried with CWM image and it succeeded to load, but I don't have otg cable to load recovery or ROM from usb storage (The problem was in installing TWRP and my ROM should has no problem)
I want to flash TWRP on phone not only loading by "minimal adb and fastboot".
I decided to flash TWRP 2.7.1.2 batch through modifying the batch file. I just used fastboot commands
Code:
[COLOR="blue"][I]fastboot oem device-info
fastboot oem unlock
fastboot oem device-info
fastboot [COLOR="Red"][U][B]flash[/B][/U][/COLOR] recovery data/recovery.img
fastboot flash aboot data/lock/emmc_appsboot.mbn
fastboot flash rpm data/lock/rpm.mbn
fastboot flash sbl1 data/lock/sbl1.mbn
fastboot flash dbi data/lock/sdi.mbn
fastboot flash tz data/lock/tz.mbn
fastboot reboot[/I][/COLOR]
Finally I succeeded to install Recovery and phone works well in the new recovery mode and the system mode that I've not update it yet
I want to share you the problem solution in brief:
Download and extract this file "flashrec TWRP v2.7.1.2" from here
Just select without executing "flashrec_Modified.bat" file from the extracted files.
The phone should be disconnected from computer and completely off (press the Power button for 10 seconds or wait for the battery to be almost empty)
Press and hold both volume buttons, then connect the cable to the PC.
Once the phone vibrate, press Enter to execute the recovery batch file
and as me the phone start the recovery mode in TWRP and can be rebooted in system without any problem
Click to expand...
Click to collapse
Please explain me. idont know how to do
prxzero said:
Please explain me. idont know how to do
Click to expand...
Click to collapse
What Is your problem?
Is your phone stuck on logo screen? what were you doing to get the problem??
agsao said:
First of all I would thank Crowds he is the best reference that I've to return in case of any problem I face. (He doesn't sleep - any time I ask he immediately supports)
I bought Lenovo K910 and I've managed successfully to install new ROM "VIBEUI_v2.0_1443" and Gapps with Crowds support.
I advised two of my friends to buy this good and cheap phone. For one of them I installed the latest rom successfully. But with the other I had a big problem The phone stuck on Lenovo Logo.
I was trying to install TWRP 2.7.0.0 batch before installing my new ROM, but during installation and after the phone rebooting the batch command screen shows <Waiting for Device> and the phone is stuck on logo screen.
I tried to connect the phone to PC many times, but PC doesn't recognize the phone. When I try to turn off the phone by pressing the power buttons, the phone restart on logo screen like the shown in this video.
I've read in many site that I have to do the following:
In my case when I press and hold power button the phone is restarting on logo screen so I have to wait for battery consumption
I tried many times with TWRP images but it failed...
I tried with CWM image and it succeeded to load, but I don't have otg cable to load recovery or ROM from usb storage (The problem was in installing TWRP and my ROM should has no problem)
I want to flash TWRP on phone not only loading by "minimal adb and fastboot".
I decided to flash TWRP 2.7.1.2 batch through modifying the batch file. I just used fastboot commands
Code:
[COLOR="blue"][I]fastboot oem device-info
fastboot oem unlock
fastboot oem device-info
fastboot [COLOR="Red"][U][B]flash[/B][/U][/COLOR] recovery data/recovery.img
fastboot flash aboot data/lock/emmc_appsboot.mbn
fastboot flash rpm data/lock/rpm.mbn
fastboot flash sbl1 data/lock/sbl1.mbn
fastboot flash dbi data/lock/sdi.mbn
fastboot flash tz data/lock/tz.mbn
fastboot reboot[/I][/COLOR]
Finally I succeeded to install Recovery and phone works well in the new recovery mode and the system mode that I've not update it yet
I want to share you the problem solution in brief:
Download and extract this file "flashrec TWRP v2.7.1.2" from here
Just select without executing "flashrec_Modified.bat" file from the extracted files.
The phone should be disconnected from computer and completely off (press the Power button for 10 seconds or wait for the battery to be almost empty)
Press and hold both volume buttons, then connect the cable to the PC.
Once the phone vibrate, press Enter to execute the recovery batch file
and as me the phone start the recovery mode in TWRP and can be rebooted in system without any problem
Click to expand...
Click to collapse
Hi..
i just try to install CM12 to this device, with twrp 2.8.6.1 from master lie.
First time its working well, but suddenly this device restarting and stuck on the "lenovo" logo screen.
Every time i presh power button always restarting (like ON-OFF-ON-OFF forever).
when i connectto charger also restarting....
i cant go to twrp using vol- & pwr, when i use minimal adb cannot detected..
Can you help me...
Help
hi.
i try to do something to enable notifications on my lenovo vibe z.
i install new rom from needrom, but it didn't help. So i try to install other one, but i wipe my phone and restart without installed system.
Now when i go to twrp have just flashing teamwin logo, and only when phone is in this mode i can communicate through adb
i have checked many forums and try allot stuff to fix it but nothing works
Please Help!
U are not alone I also in same stage
Is there any one plz help
As long as the hardware is not physically broken, your K910 is unbrickable
http://www.teamsuperluminal.org/unbrick-lenovo-k910/
I followed the guide to revive my K910. You can refer to this forum post in which I documented my experiences:
http://www.teamsuperluminal.org/forums/topic/flash-back-to-lenovo-stock-just-temporarily/
nowbo said:
Is there any one plz help
Click to expand...
Click to collapse
Thanks for your reply
I will apply today. Hope for the best.
Will inform you as soon as this applied..
Have you fixed that problem?
Still at same stage
EcoDan said:
Have you fixed that problem?
Click to expand...
Click to collapse
Hi,
I am still on same stage (Black screen with lenovo logo). Try several ways but can't get out of this. Please help me If any one successful to startup this device or can get on the boot screen where I can do factory reset.
---------- Post added at 07:25 AM ---------- Previous post was at 07:21 AM ----------
wxppro said:
http://www.teamsuperluminal.org/unbrick-lenovo-k910/
I followed the guide to revive my K910. You can refer to this forum post in which I documented my experiences:
http://www.teamsuperluminal.org/forums/topic/flash-back-to-lenovo-stock-just-temporarily/
Click to expand...
Click to collapse
I Try this method but can't get out from that black screen ( Lenovo logo and powered by android)
My device is Lenovo Vibe shot Z90a40. I also try with boot unlock-er but nothing sitll work. So its about 20 days can't use my Lenovo Vibe Shot.
Please help me If you know how to get out of this issue..
Thanks
[/COLOR]
I Try this method but can't get out from that black screen ( Lenovo logo and powered by android)
My device is Lenovo Vibe shot Z90a40. I also try with boot unlock-er but nothing sitll work. So its about 20 days can't use my Lenovo Vibe Shot.
Please help me If you know how to get out of this issue..
Thanks[/QUOTE]
You need to carefully follow each steps in the method - if you short that magic pin and then connect the USB cable (with battery disconnected), your computer will report seeing the device at either COM port 9008 or 9006. Then you can download the factory image to revive the phone. Of course you need to have the right device driver installed. Like I said, as long as the hardware is not broken, this procedure will succeed for sure.
I love you man!
I love you man! I wish you all the happiness and wealth!:victory::victory::victory::angel::angel::highfive::highfive:
Hi guys,
I found Hard bricked Asus Memo pad in eletric waste, but whatever i tried was end unsuccessfully. Maybe someone can help me.
Situation:
- Tablet is stucked on ASUS logo.
- Volume up + power - dont work (no recovery)
- Volume down + power give me black screen but in PC i can see "Asus ADB interface"
- In this mode "ADB devices" give me nothnig.
- In this mode "Fastboot devices" give me > 123456789 Fastboot
So it looks like bootloader is "working" .....but
I already tried "Fastboot flash" recovery, boot etc.. but everything gives me "FAILED (remote: device is locked)" so it looks like bootloder is locked. I tried "fastboot OEM unlock" it give me OK but on screen nothing and still same error.
EDIT: Asus Flash tool dont work, but it looks like "user friendly ADB" ........ fastboot reboot-bootloader give me unknown usb device (device descriptor request failed) - RK driver wont work ...
EDIT2: ROCKUSB device installed. But RKflashtool give me rkflashtool: fatal: cannot open device
Some ideas how deal with it ?
EDIT (another) :
AndroidTool and Rockchip Factory tool are able to detect "LOADER device"
From both programs i got error "Firmware load failed" (i tried system.img, boot.img, recovery.img ...etc)
Me too.
I have this problem too.
Somebody please help.
Thanks.
feri79 said:
I have this problem too.
Somebody please help.
Thanks.
Click to expand...
Click to collapse
Read my post maybe it can help you , I just got fixed ASUS Fonpad 7 from client who gived to me to repair his device .
But to me in order to get in Recovery mode I pressed Vol + and Power button together and one I see Logo I release both keys and I pressed couple times Vol - when I saw USB Icon or DroidBoot menu.
If you are able to go in to Recovery you can flash your device with SD Card or update with fastboot .
https://forum.xda-developers.com/android/help/asus-fonpad-7-fe170cg-bricked-stuck-t3740819
Stock Rom
https://www.leakite.com/2017/10/download-asus-memo-pad-10-me102a-stock-firmware-flash-file.html
Thanks you so much.
I will try it and will say results to you.
I know this device is for 4 years ago and a budget device, but I bought an iPhone 7 Plus recently and dont have money to buy an android tablet! at least for next 6 month...
***
I dont want do anything, I just open my school books with it, and do homeworks, maybe 2-3 time weekly for about only 30 mins. I open them with my Asus notebook but PDFs are better in a 10.1' tablet!
---------- Post added at 01:22 PM ---------- Previous post was at 01:12 PM ----------
Teddy Lo said:
Read my post maybe it can help you , I just got fixed ASUS Fonpad 7 from client who gived to me to repair his device .
But to me in order to get in Recovery mode I pressed Vol + and Power button together and one I see Logo I release both keys and I pressed couple times Vol - when I saw USB Icon or DroidBoot menu.
If you are able to go in to Recovery you can flash your device with SD Card or update with fastboot .
https://forum.xda-developers.com/android/help/asus-fonpad-7-fe170cg-bricked-stuck-t3740819
Stock Rom
https://www.leakite.com/2017/10/download-asus-memo-pad-10-me102a-stock-firmware-flash-file.html
Click to expand...
Click to collapse
I read the steps, but fastboot isnt working on this device, because non of the "fastboot flash ..." or "adb reboot fastboot" commands works. Also DroidBoot isnt working.
What should I do so?
Thanks
How your device is recognized in Device Manager ?
Teddy Lo said:
How your device is recognized in Device Manager ?
Click to expand...
Click to collapse
Yes.
Also in "This PC" it shows as a "MTP Transfer Device" and it opens the folder and if I insert a Micro SD card, it will show that also.
device is stuck in boot.
when I hold power button, the asus logo shows and then after asus animation, the progress circle spins and spins and spin...
after 10-15 second, the brightness increased a bit, like zenfone 5 boot and this tablet. that it brightness goes up a bit and then device boots and shows lockscreen. but now brightness increases but it still keeps at that screen. and dont boot.
---------- Post added at 03:40 PM ---------- Previous post was at 03:16 PM ----------
Teddy Lo said:
How your device is recognized in Device Manager ?
Click to expand...
Click to collapse
Sorry, I think that you ask "Is" your device recognized in device manager.
-->It is recognized as: "USB MTP Device" under "Portable Devices"
Hi , try to manualy instal this ADB driver on Device Manager , make sure your device is OFF and try again (Vol + and Power button together and one I see Logo I release both keys and I pressed couple times Vol - when I saw USB Icon or DroidBoot menu)and connect your phone with usb open ADB comand line and write fastboot devices .
If not try eith other combination for example
Power off your device and press VOL + and plug USB
-||- and press Vol - and plug USB
-||- and press both Vol - and Vol + and plug USB
If your device is recognised in fastboot extract 3 image files from firmware and flash with fastboot commands like in my post .
https://www.asus.com/Tablets/ASUS_MeMO_Pad_10_ME102A/HelpDesk_Download/
Teddy Lo said:
Hi , try to manualy instal this ADB driver on Device Manager , make sure your device is OFF and try again (Vol + and Power button together and one I see Logo I release both keys and I pressed couple times Vol - when I saw USB Icon or DroidBoot menu)and connect your phone with usb open ADB comand line and write fastboot devices .
If not try eith other combination for example
Power off your device and press VOL + and plug USB
-||- and press Vol - and plug USB
-||- and press both Vol - and Vol + and plug USB
If your device is recognised in fastboot extract 3 image files from firmware and flash with fastboot commands like in my post .
https://www.asus.com/Tablets/ASUS_MeMO_Pad_10_ME102A/HelpDesk_Download/
Click to expand...
Click to collapse
I manually installed that ADB driver from device manager. I tried those three last ways, last one worked, but it go to "Android System Recovey 3e". I have also went here by pressing volume+ and power button holding. nothing new
problem is that i can't go to fastboot. If it go there, then it can fixed. Like when I had a problem like this on my Zenfone 5 A500CG when rooted and installed a custom rom. and I fixed it my self with "fastboot flash ....." command. also I fixed a Asus Nexus 7 2012 with same story.
In the "Android System Recovey 3e" it have these:
-reboot system noww
-apply update from ADB
-apply update from external storage
-update image from external storage
-apply update from cache
-wipe data/factory reset
-wipe cache partition
when I select apply update from ADB, that is when my pc detects it as: Asus Android ADB interface and I when i type "adb devices" it shows my devices for <sideload> next to it.
on device screen it shows:
Now send the package you want to apply to the device with: "adb sideload <filename>"
Write this command :
adb reboot bootloader
Shut down the device
Hold Power button + volume UP at the same time
Once vibrate, hold volume up only and it should enter into fastboot mode and from fastboot you should flash images .
Here you have steps how to reinstall firmware:
https://www.youtube.com/watch?v=6E5wdjgXROg
Teddy Lo said:
Write this command :
adb reboot bootloader
Shut down the device
Hold Power button + volume UP at the same time
Once vibrate, hold volume up only and it should enter into fastboot mode and from fastboot you should flash images .
Here you have steps how to reinstall firmware:
https://www.youtube.com/watch?v=6E5wdjgXROg
Click to expand...
Click to collapse
Thanks but i already tried that command, but it says:
"Error: closed"
Reinstall ADB , and also all drivers use USBDeview to uninstall old drivers , scroll down for download
https://www.nirsoft.net/utils/usb_devices_view.html
Teddy Lo said:
Reinstall ADB , and also all drivers use USBDeview to uninstall old drivers , scroll down for download
https://www.nirsoft.net/utils/usb_devices_view.html
Click to expand...
Click to collapse
I installed USBDeview and done them, but it keep saying: "Error: closed" in the adb sideload connection
I think it is bricked reeeeally hard!
Did you tried to adb sideload and then add stock firmware from asus and hit Enter ?
Teddy Lo said:
Did you tried to adb sideload and then add stock firmware from asus and hit Enter ?
Click to expand...
Click to collapse
Yes i tried sideloading stock firmware first of all!
But the progress percent goes to 100% then on the device it says: start updating... then says verifying package... and then says verification failed, instalation aborted !
Try to disable driver signature on your pc , and try again if not try another firmware for your device if you have .
I'm sorry that probably many have asked the same quesiton, but I'm desperate. The case is I followed the guide on rootyourmobile dot com how-to-unlock-bootloader-install-twrp-and-root-huawei-honor-7 to unlock, install twrp and root. All went good until installing SuperSu through TWRP, where the installation process got cancelled and I'm now stuck at honor-logo. I can still access twrp(it's in chinese though), by holding volum up + power, but I dont manage to access fastboot mode.
I realize this is a way to go. I guess my problem is not getting into fastboot, I also tried all options under Reboot in TWRP. Should I let the battery run out? Any help is much appreciated. Hope my phone is not total garbage...
DigiGoon said:
Okay follow these step, if you don't understand any step ask again. But follow these:
Download the UPDATE.APP of the Build number you were on before.
Extract system.img, boot.img, recovery.img, cust.img from that UPDATE.APP
Flash all these files via bootloader mode, to boot into bootloader mode, once a loop is over and you see blank screen on your phone, quickly press Vol DOWN button and while pressing it connect your phone to a PC. If this doesn't work and you get into recovery, then in recovery go to option Reboot, in that select Bootloader.
Once in bootloader mode, flash these files by firing these commands from a CMD, make sure files are situated in the same location where you open up the CMD.
Code:
fastboot flash recovery recovery.img
fastboot flash system system.img
fastboot flash cust cust.img
fastboot flash boot boot.img
Now after your phone boots up normally, put the same UPDATE.APP from which these files were extracted in dload folder of your external SDcard.
Now switch off your phone and press all the three buttons(Vol UP + Vol DOWN + Power) simultaneously.
Flashing process will start.
Hope this helps.
Click to expand...
Click to collapse
mosoo said:
I'm sorry that probably many have asked the same quesiton, but I'm desperate. The case is I followed the guide on rootyourmobile dot com how-to-unlock-bootloader-install-twrp-and-root-huawei-honor-7 to unlock, install twrp and root. All went good until installing SuperSu through TWRP, where the installation process got cancelled and I'm now stuck at honor-logo. I can still access twrp(it's in chinese though), by holding volum up + power, but I dont manage to access fastboot mode.
I realize this is a way to go. I guess my problem is not getting into fastboot, I also tried all options under Reboot in TWRP. Should I let the battery run out? Any help is much appreciated. Hope my phone is not total garbage...
Click to expand...
Click to collapse
No need to open a separate threat. Check your post.
Why are you quoting my post and starting a new thread with it?
Hi all,
What I did:
- Install TWRP
- Installed a bad ROM through recovery mode
- #brick
Now:
- Stuck in mi logo bootloop
- I can't get to EDL
- I can get to fastboot, but I can't seem to run any commands on my PC
- I can't get to recovery mode
EDL Mode
- I can't seem to get to EDL mode where the red light flashes
- I have tried going to fastboot --> Removing power --> Power + and Power - and Power. Wait for Mi logo to flash twice, and it goes into "Power off mode"
- When I connect to USB again, it connects to the PC and charges
- In device manager, I can see Xiaomi Composite MDB Interface
- No connectivity over adb command
Fastboot Mode
- I can get into Fastboot
- Connect Fastboot into the PC, I am unable to run any adb or fastboot commands.
- Fastboot devices shows nothing, adb devices shows nothing
- In device manager, I can see Android Bootloader Interface
I've tried many soft options and have read through probably 30+ guides. I have not tried the test point method because I do not want to void my warranty.
Anyone experience this and can help?
Thanks!
Try re-installing the driver and see if those adb/fastboot commands work.
U said u installed TWRP right . Then u can go to recovery by pressing volume up+power button and then install another custom rom or stock rom but if u have unofficial unlocked bootloader then flashing stock rom will relock ur bootloader and device will not bootup.So go for another custom rom like resurrection remix its super stable n smooth too.
Follow these two tutorials.
http ://en.miui.com/thread-274589-1-1 . html
http ://en.miui.com/thread-235865-1-1 . html
To enter EDL mode, you need to unplug the battery, wait 10 seconds, replug it. Then, remove the USB plug, replace it, then while holding both volume + and -, plug the phone in the computer using the original cable.
Make sure to check what you're getting in device manager. If you get USB_BULK, you need to download the drivers. If you're getting diagnostics, you did the earlier procedure wrong so try it again. If you're getting 9008, you've gained access to EDL.