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stuck up at no boot or recovery image

Hi geeks of this forum
I am stuck up at Fastboot mode- no boot or recovery image after i tried flashing my jz054k to JRO03E ... i was using nexus root toolkit 1.6.3. SO i happened to restore which lead to this problem. I am trying my best to get through it but all failures. PLs help me!
I love my Nexus s
Model number i9020kc1 :crying:

Him85 said:
Hi geeks of this forum
I am stuck up at Fastboot mode- no boot or recovery image after i tried flashing my jz054k to JRO03E ... i was using nexus root toolkit 1.6.3. SO i happened to restore which lead to this problem. I am trying my best to get through it but all failures. PLs help me!
I love my Nexus s
Model number i9020kc1 :crying:
Click to expand...
Click to collapse
... ... http://forum.xda-developers.com/showthread.php?p=42324740#post42324740 ... ...

Setting.Out said:
... ... http://forum.xda-developers.com/showthread.php?p=42324740#post42324740 ... ...
Click to expand...
Click to collapse
i have tried some CMW 6.x.x.x.IMG recovery types... but al failures... Unable to atleast see the home screen to do something. Only "NO BOOT OR RECOVERY IMAGE" is seen all time...
Pls Guide Me Through Proper Instruction..."Setting Out" ..pls..

Him85 said:
i have tried some CMW 6.x.x.x.IMG recovery types... but al failures... Unable to atleast see the home screen to do something. Only "NO BOOT OR RECOVERY IMAGE" is seen all time...
Pls Guide Me Through Proper Instruction..."Setting Out" ..pls..
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1766475
Download this program for your computer, follow the instructions, Flash your phone back to stock (using bricked mode), You will need to re-install a custom recovery, and then flash in the rom ect...
Make sure you do a clean flash, for ANYTHING you install on your phone..

Setting.Out said:
http://forum.xda-developers.com/showthread.php?t=1766475
Download this program for your computer, follow the instructions, Flash your phone back to stock (using bricked mode), You will need to re-install a custom recovery, and then flash in the rom ect...
Make sure you do a clean flash, for ANYTHING you install on your phone..
Click to expand...
Click to collapse
yeah had actually installed this program and have gone into this mess.. Can u guide me .....i kno w i am going kiddish in this .. but yes ofcourse for this time because i want to see my nexus back to life

Him85 said:
yeah had actually installed this program and have gone into this mess.. Can u guide me .....i kno w i am going kiddish in this .. but yes ofcourse for this time because i want to see my nexus back to life
Click to expand...
Click to collapse
1. make some coffee
2. get a comfy chair
3. read, read, read...
4. now that you have read about your issue and how to use the toolkit.. (while you are shaking your head no, and are just continuing to read only this...)
5. I am assuming that you are unlocked and have the correct drivers installed, because you already read and followed the instructions.. ;P
6. Boot into your bootloader.. (volume + and power)
7. Open the program (nexus root toolkit)
8. Plug your phone into your computer using the usb cable
9. Using the program, click the "flash to stock" (bricked) option.. If your device isn't recognized, or connected.. You missed a step while you were reading and learning about how to use the toolkit.. or if you don't have a recovery image, you need to find one, or possibly the tookit can download it for you..
10. Keep clicking "ok"
11. A black box will open on your computer.. telling you that it's fixing your phone.. your phone will reboot and you'll celebrate!!..
Now you have a restored to stock phone, without a custom recovery, it isn't rooted, but it is unlocked..
12. You want a custom phone?
13. Use the toolkit that you have now mastered.. because you read on how to do this..
14. Download the .zip files you want to install on your phone (making sure that it is for your phone, as wrong files will break your phone) transfer them to your phone...
15. You open and use the toolkit, ADVANCED/ BOOT RECOVERY... WIPE (DALVIK, CACHE, DATA)/ INSTALL ZIP(s) wiping dalvik and cache for additional installs.. ROM, then KERNEL, then ect..
16. You become addicted to flashing, thinking you can make it better, faster, better battery..
17. You break it again and re-read this, and the other forums you didn't read the first time.. and start over again.. lol..

Setting.Out said:
1. make some coffee
2. get a comfy chair
3. read, read, read...
4. now that you have read about your issue and how to use the toolkit.. (while you are shaking your head no, and are just continuing to read only this...)
5. I am assuming that you are unlocked and have the correct drivers installed, because you already read and followed the instructions.. ;P
6. Boot into your bootloader.. (volume + and power)
7. Open the program (nexus root toolkit)
8. Plug your phone into your computer using the usb cable
9. Using the program, click the "flash to stock" (bricked) option.. If your device isn't recognized, or connected.. You missed a step while you were reading and learning about how to use the toolkit.. or if you don't have a recovery image, you need to find one, or possibly the tookit can download it for you..
10. Keep clicking "ok"
11. A black box will open on your computer.. telling you that it's fixing your phone.. your phone will reboot and you'll celebrate!!..
Now you have a restored to stock phone, without a custom recovery, it isn't rooted, but it is unlocked..
12. You want a custom phone?
13. Use the toolkit that you have now mastered.. because you read on how to do this..
14. Download the .zip files you want to install on your phone (making sure that it is for your phone, as wrong files will break your phone) transfer them to your phone...
15. You open and use the toolkit, ADVANCED/ BOOT RECOVERY... WIPE (DALVIK, CACHE, DATA)/ INSTALL ZIP(s) wiping dalvik and cache for additional installs.. ROM, then KERNEL, then ect..
16. You become addicted to flashing, thinking you can make it better, faster, better battery..
17. You break it again and re-read this, and the other forums you didn't read the first time.. and start over again.. lol..
Click to expand...
Click to collapse
Hey!!
Thanks for awesome tip
I could finally do it
Thanks a ton for sparing your precious time U rock!!

odin
Him85 said:
Hi geeks of this forum
I am stuck up at Fastboot mode- no boot or recovery image after i tried flashing my jz054k to JRO03E ... i was using nexus root toolkit 1.6.3. SO i happened to restore which lead to this problem. I am trying my best to get through it but all failures. PLs help me!
I love my Nexus s
Model number i9020kc1 :crying:
Click to expand...
Click to collapse
you can try a odin file to reinstall rom.

[Q] Bricked after factory reset. ROOTED. CMW locked......help :(

My phone is Lava xolo a700 (rooted) and i had a proper functioning CWM installed and was running fine. Until one day i freezed my rom manager and did a factory reset...alas...it got struck at boot logo and it automatically tries to enter CWM recovery but fails to load and quits and restarts again. it is being a repeated process. i tried all kinda hard rest etc. even i cant enter fast boot mode. but i can enter factory mode. i have back up of stock rom. but i dont know how to restore as i cant even enter into recovery... :crying:
I even tried replacing the whole folder from my pc to root of sd card...but no luck...please HELP me to get out of this mess...please...

Hi there!
alsalman007 said:
My phone is Lava xolo a700 (rooted) and i had a proper functioning CWM installed and was running fine. Until one day i freezed my rom manager and did a factory reset...alas...it got struck at boot logo and it automatically tries to enter CWM recovery but fails to load and quits and restarts again. it is being a repeated process. i tried all kinda hard rest etc. even i cant enter fast boot mode. but i can enter factory mode. i have back up of stock rom. but i dont know how to restore as i cant even enter into recovery... :crying:
I even tried replacing the whole folder from my pc to root of sd card...but no luck...please HELP me to get out of this mess...please...
Click to expand...
Click to collapse
Have u tried booting to recovery mode urself?? u said u boot to cwm.automatically... so try to boot manually to it... if that doesnt work... then try a wipe data... wipe cache from stock recovery... them reboot...
or u can flash the backup files using odin via your pc... are u sure ur memory card or cwm.zip file is not corrupt?? try replacing one of these.... and retry...

naman4797 said:
Have u tried booting to recovery mode urself?? u said u boot to cwm.automatically... so try to boot manually to it... if that doesnt work... then try a wipe data... wipe cache from stock recovery... them reboot...
or u can flash the backup files using odin via your pc... are u sure ur memory card or cwm.zip file is not corrupt?? try replacing one of these.... and retry...
Click to expand...
Click to collapse
I even tried manually to enter into CWM recovery but same happens ... i flashed the stock recovery to CWM recovery... iam noob and how can i use odin to flash the back up files....my Mcard is in perfect condition....
Thanks for quick response...
Awaiting reply....
Also i cannot enter recovery then how can i clear the cache's....?!!!

alsalman007 said:
I even tried manually to enter into CWM recovery but same happens ... i flashed the stock recovery to CWM recovery... iam noob and how can i use odin to flash the back up files....my Mcard is in perfect condition....
Thanks for quick response...
Awaiting reply....
Click to expand...
Click to collapse
as u can see the phone boot up... ur phone is just soft bricked... dont worry... just google about using odin for your phone model... and try flashing another rom or kernel with it... can u enter the download mode ??

naman4797 said:
as u can see the phone boot up... ur phone is just soft bricked... dont worry... just google about using odin for your phone model... and try flashing another rom or kernel with it... can u enter the download mode ??
Click to expand...
Click to collapse
what shall be the steps i should be doing in odin? also i cant understand the proper function or procedure to be done for my fault.
Also please understand that i actually installed CWM from rom manager and later i freezed rom manager using titanium backup. After that the recovery was working fine manually. i stupidly factory reset the phone without unfreezing the rom manager. may be this is the reason why it got stuck up.
just tell me that is there any way through which i can flash my old backup stock rom using PC(created using CWM recovery) also tell me that is there any software which can clear cache by connecting through pc. so that i can give it a try.....please help me.
am very badly tensed...

alsalman007 said:
what shall be the steps i should be doing in odin? also i cant understand the proper function or procedure to be done for my fault.
Also please understand that i actually installed CWM from rom manager and later i freezed rom manager using titanium backup. After that the recovery was working fine manually. i stupidly factory reset the phone without unfreezing the rom manager. may be this is the reason why it got stuck up.
just tell me that is there any way through which i can flash my old backup stock rom using PC(created using CWM recovery) also tell me that is there any software which can clear cache by connecting through pc. so that i can give it a try.....please help me.
am very badly tensed...
Click to expand...
Click to collapse
The only method is via Odin... And the only way u can learn it is google... google this
Odin for <ur model>
and find relevant link....
use the backup file u have.....
there is actually not.much abt ur phone on xda...

naman4797 said:
The only method is via Odin... And the only way u can learn it is google... google this
Odin for <ur model>
and find relevant link....
use the backup file u have.....
there is actually not.much abt ur phone on xda...
Click to expand...
Click to collapse
Yeah i googled..but no results came up for my model... I downloaded one which is latest of version ...Then i installed it. also read that the back up files(of ROM) must be in .tar format in order to flash it from odin. Also the phone must enter some kind of FORCED UPLOAD MODE (saw in case of samsung).
what shall i be doing to enter that download mode(same as upload mode i guess) which you mentioned above.... Is there any converter to convert my back up files to .tar

Use this link and follow the steps u can easily unbrick your phone.
http://forum.xda-developers.com/showthread.php?t=2275220
Sent from my Xolo A700 using xda app-developers app

Hey guys.. Same issue happened to me also. I have rooted my Xolo B700 successfully and after installing some mods with the help of CWM recovery, it was working fine then. But today when I reset my phone backup & restore under under phone Settings the device shutdown and when I press power button it keeps on showing boot logo("XOLO") and then android Robo with processing bar and then restarts and same procedure happening infinite times untill I remove the battery.
i tried to get into recovery mode but didn't succeed. Please help me to restore to normal mode my phone I have my stock Nandroid backup in SD card. HELP ME !!!! :crying::crying:

[Q] Nexus S Hard-Bricked and Bootloop w/ Unbrickable Mod

Decided to try and revive my old hard-bricked nexus s paperweight the other day
Used Unbrickable Mod from here: http://forum.xda-developers.com/showthread.php?t=1566475
Worked great, SBL injected, but I'm pretty sure the phone is in a bootloop because its getting detected intermittently by the computers I'm using. So when I try to flash with heimdall the device isn't detected and I can't follow through. Only hear the comp play a little sound of something being connected via USB. Also I think I should mention the power button doesn't work. Any ideas?

Do at your own risk i am not responsible actually this worked for my device
sedelek said:
Decided to try and revive my old hard-bricked nexus s paperweight the other day
Used Unbrickable Mod from here: http://forum.xda-developers.com/showthread.php?t=1566475
Worked great, SBL injected, but I'm pretty sure the phone is in a bootloop because its getting detected intermittently by the computers I'm using. So when I try to flash with heimdall the device isn't detected and I can't follow through. Only hear the comp play a little sound of something being connected via USB. Also I think I should mention the power button doesn't work. Any ideas?
Click to expand...
Click to collapse
If u have installed cwm recovery on your mobile then do these steps:
turn off device
goto recovery mode (google your device)
clear cache and reset your phone from there and restart
this should solve bootloop problem if not then you can try flashing new rom by doing this
download rom for your device and follow the steps by the ddeveloper of that rom if therr is no guide on how to install that rom then u can try this
AT YOUR OWN RISK
for CWM 6 might work on other version :/
copy. zip file of your custom rom then goto recovery mode and then format system
reset phone
clear cache
install zip from sdcard and then choose your rom after that clear delvik cache and last reboot device click yes and wait rom to load can take 5 mints

NC4777 said:
If u have installed cwm recovery on your mobile then do these steps:
turn off device
goto recovery mode (google your device)
clear cache and reset your phone from there and restart
this should solve bootloop problem if not then you can try flashing new rom by doing this
download rom for your device and follow the steps by the ddeveloper of that rom if therr is no guide on how to install that rom then u can try this
AT YOUR OWN RISK
for CWM 6 might work on other version :/
copy. zip file of your custom rom then goto recovery mode and then format system
reset phone
clear cache
install zip from sdcard and then choose your rom after that clear delvik cache and last reboot device click yes and wait rom to load can take 5 mints
Click to expand...
Click to collapse
Thanks for the speedy response!
I'm sorry I should have provided more info. The screen has no display so any manipulations from the device are impossible. Also the power button is non-responsive so I can't use it to access recovery mode. The only way I know it's bootlooping actually is it pops in and out of detection in unbrickable and the sounds of connection and disconnection that play when connected to the comp via USB. Also I don't have CWM. Last I checked (a while ago) it was on a stock ROM.

Ohh you have bricked your mobile :/ but dont worry
I am going to post a tutorial on how to unbrick a mtk phone with same issue ... , may that tutorial will help you
I will post link here as i post that tutorial but i dont gurantee that will work or not
Sent from my A2

[Completed] [RESOLVED] Soft bricked Symphony Xplorer P6 is looping on TWRP splash screen

My device is the little known 'Symphony Xplorer P6'. Android L 5.0. It was rooted. And recently I flashed TWRP recovery using Mobileuncle. d-h.st/oEO9 this is the link to the .img file of the TWRP I used.
Later I installed Xposed installer and it tried to install Xposed framework but it didn't support my device. The install/update button was greyed out. So I went on XDA and found this alpha version of Xposed installer that works with Android L from here http://forum.xda-developers.com/showthread.php?t=3034811
Then I downloaded "xposed-v78-sdk21-arm.zip" from the same thread and flashed it using TWRP. And rebooted. It rebooted straight to recovery. I needed to check if the newly flashed zip file worked and I could finally install Xposed Framework but it won't reboot to system. So I decided to clear cache. I selected just the cache partition and swiped to wipe. But it was stuck showing "wiping cache". It was wiping cache for a long time but normally just wiping cache doesn't take that much time. So I pulled the battery and rebooted to recovery. Then I wiped Dalvik cache. Still didn't boot to system. But the cache was clear. So I tried a factory reset (the first option that shows in TWRP on the wipe menu) after I pulled my sim cards and external SD.
And now whenever I turn on my phone it shows the boot logo (Symphony logo, my phone's brand) and then goes to TWRP splash screen and the display blinks after a few seconds and again its the TWRP splash screen. Means when it was supposed to show recovery options (Install, wipe, backup etc) the splash screen started again. And blinks again and splash screen again and so on untill I pull the battery. I know my phone is not bricked because it turned on (or is it?). As it is stuck at the TWRP splash Screen, It cant go into recovery mode where you have Install, Wipe, Backup etc. options.
What do I do now? Experts, please help the noob

gr8Scottt said:
My device is the little known 'Symphony Xplorer P6'. Android L 5.0. It was rooted. And recently I flashed TWRP recovery using Mobileuncle. d-h.st/oEO9 this is the link to the .img file of the TWRP I used.
Later I installed Xposed installer and it tried to install Xposed framework but it didn't support my device. The install/update button was greyed out. So I went on XDA and found this alpha version of Xposed installer that works with Android L from here http://forum.xda-developers.com/showthread.php?t=3034811
Then I downloaded "xposed-v78-sdk21-arm.zip" from the same thread and flashed it using TWRP. And rebooted. It rebooted straight to recovery. I needed to check if the newly flashed zip file worked and I could finally install Xposed Framework but it won't reboot to system. So I decided to clear cache. I selected just the cache partition and swiped to wipe. But it was stuck showing "wiping cache". It was wiping cache for a long time but normally just wiping cache doesn't take that much time. So I pulled the battery and rebooted to recovery. Then I wiped Dalvik cache. Still didn't boot to system. But the cache was clear. So I tried a factory reset (the first option that shows in TWRP on the wipe menu) after I pulled my sim cards and external SD.
And now whenever I turn on my phone it shows the boot logo (Symphony logo, my phone's brand) and then goes to TWRP splash screen and the display blinks after a few seconds and again its the TWRP splash screen. Means when it was supposed to show recovery options (Install, wipe, backup etc) the splash screen started again. And blinks again and splash screen again and so on untill I pull the battery. I know my phone is not bricked because it turned on (or is it?). As it is stuck at the TWRP splash Screen, It cant go into recovery mode where you have Install, Wipe, Backup etc. options.
What do I do now? Experts, please help the noob
Click to expand...
Click to collapse
=
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what version of android was it running?
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keifus.rahn said:
=
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what version of android was it running?
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=
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Click to expand...
Click to collapse
Android Lollipop 5.0 stock ROM

Symphony Xplorer P6 Factory Rom
Try Flashing the original firmware to see if that helps you, Most likely have to start back from square one. Please post results
How To Flash Stock Rom http://androidmtk.com/flash-stock-rom-using-smart-phone-flash-tool
Factory Rom Download link= https://docs.google.com/uc?export=download&confirm=rkEP&id=0B5cmBf2wWSUmLXhyWmlMWjh1Ulk

keifus.rahn said:
Try Flashing the original firmware to see if that helps you, Most likely have to start back from square one. Please post results
How To Flash Stock Rom http://androidmtk.com/flash-stock-rom-using-smart-phone-flash-tool
Factory Rom Download link= https://docs.google.com/uc?export=download&confirm=rkEP&id=0B5cmBf2wWSUmLXhyWmlMWjh1Ulk
Click to expand...
Click to collapse
I've downloaded and installed the USB drivers and Flash tool. Now downloading the stock ROM. As soon as download completes I'll begin flashing. Thanks for your links. Another thing, I've removed the battery and connected the phone via USB, the phone shows the charging screen for a moment then turns off, then again the charging screen and then turns off, Windows 7 is playing the device connected and disconnected sound as the screen happens. Is it normal?
Update: After clicking the download button in SP flash tool and connecting phone via USB the download procedure doesn't start. The device driver I installed was "Android Gadget VCOM driver (COM4)". I think I need the "MediaTek DA USB VCOM driver".. I'm going to install that.
Update 2: Installed "MediaTek Preloader USB VCOM driver" Download procedure started and running

gr8Scottt said:
I've downloaded and installed the USB drivers and Flash tool. Now downloading the stock ROM. As soon as download completes I'll begin flashing. Thanks for your links. Another thing, I've removed the battery and connected the phone via USB, the phone shows the charging screen for a moment then turns off, then again the charging screen and then turns off, Windows 7 is playing the device connected and disconnected sound as the screen happens. Is it normal?
Update: After clicking the download button in SP flash tool and connecting phone via USB the download procedure doesn't start. The device driver I installed was "Android Gadget VCOM driver (COM4)". I think I need the "MediaTek DA USB VCOM driver".. I'm going to install that.
Click to expand...
Click to collapse
Are you putting the battery back in before you plug in your device?
and can you still boot into recovery if so you can connect threw adb that way

keifus.rahn said:
Are you putting the battery back in before you plug in your device?
and can you still boot into recovery if so you can connect threw adb that way
Click to expand...
Click to collapse
The ROM downloaded even while the battery was plugged in. It worked. Phone's back at Factory mode and running. Thanks :good:

gr8Scottt said:
The ROM downloaded even while the battery was plugged in. It worked. Phone's back at Factory mode and running. Thanks :good:
Click to expand...
Click to collapse
Awesome i'm glad I could help you out and get you back going. :good:
Would you plz add [RESOLVED] on the title of this thread so it could help others that are going threw the same issue. :highfive:

YU Yureka with no OS stuck on a Bootloop and unable to enter recovery mode.

Hey guys!
So, i was trying to install CM13 unofficial version, and wiped the system and internal storage using TWRP recovery. I was supposed to install the rom from a zip file i had placed in the external memory card. What i did, was, i rebooted the phone by mistake, after wiping it from the recovery without installing the ROM and now the phone is caught in a bootloop. I know i am an idiot to do that. I tried removing the battery and reboot it in recovery mode using the key combination with no luck. It just starts the boot loop. I tried using fastboot and adb from pc to push files into the internal memory, but my device is not getting detected on the adb anymore (maybe the usb debugging is disabled now?).
What i guess is stopping TWRP recovery from showing up is the lack of twrp/themes folder in the internal memory since i wiped it. But there might be some other cause that i am unaware of. What do i do now? Any help will be greatly appreciated!

Hey! I'm having the same problem with my yu yureka.. Can anyone help me please!
Kaustubh M said:
Hey guys!
So, i was trying to install CM13 unofficial version, and wiped the system and internal storage using TWRP recovery. I was supposed to install the rom from a zip file i had placed in the external memory card. What i did, was, i rebooted the phone by mistake, after wiping it from the recovery without installing the ROM and now the phone is caught in a bootloop. I know i am an idiot to do that. I tried removing the battery and reboot it in recovery mode using the key combination with no luck. It just starts the boot loop. I tried using fastboot and adb from pc to push files into the internal memory, but my device is not getting detected on the adb anymore (maybe the usb debugging is disabled now?).
What i guess is stopping TWRP recovery from showing up is the lack of twrp/themes folder in the internal memory since i wiped it. But there might be some other cause that i am unaware of. What do i do now? Any help will be greatly appreciated!
Click to expand...
Click to collapse
Hi! I'm having the same problem with this post... Does anyone knows the solution of this problem. I'd be really glad if anyone could help me with this..please!

Hey are you able to boot into fastboot mode? If you can....
Prerequisites –
1. Make sure that you have 70-80% battery on your phone.
2. You need a PC and a USB cable to connect your phone to the PC.
3. Flashing the factory firmware will wipe all the data present in the internal memory. So, make a backup of that if you can.
4.Install all the necessary Device drivers.
DOWNLOADS -
1. Download the flash tools from here . http://www.mediafire.com/download/87gfz7mdch188an/Flashtools_For_Yu_Yureka.zip
2. Download the factory firmware from Here (cm 12.1) . http://builds.cyngn.com/factory/tomato/cm-12.1-YOG4PAS3JM-tomato-signed-fastboot.zip
Steps To Flash Factory Firmware –
1. Extract the flashtools zip in a new folder on the desktop.
2. Extract the factory firmware zip in the same folder and make sure that all of the flashtools files are also present.
3. Now, power off your phone. If you are stuck in a bootloop, then pull out the battery and reinsert it. (Do not switch on the phone.)
4. While pressing the Volume Up key, connect your phone to the PC with the help of a USB cable.
5. You should now see the fastboot logo on your device. If you did, leave the Volume Up key. (If you do not see the logo, retry the process.)
6. Now go to the folder where you extracted the flash tools and factory firmware and run the flash-all.bat by double clicking on it.
7. A command window will open and the flashing procedure will start. (Make sure that your device does not disconnect from your PC during the procedure.)
8. The command window will automatically close once the procedure is completed.
9. Disconnect your device and boot it up by pressing the Power button. (Since this is first boot after flashing the firmware, it may take upto 5 minutes.)
Done you should be back on cm 12.1
Credits – ArnavG (Yuplaygod Forums) and Cyanogen Team.

im also having same problem i have also unknowingly wiped system & now im not able to flash any rom while flashing its rebooting automatically & i am able to enter in to fastboot mode then i have flashed factory firmware then also its not booting stucked on boot loop.

arunbiju969 said:
Hey are you able to boot into fastboot mode? If you can....
Prerequisites –
1. Make sure that you have 70-80% battery on your phone.
2. You need a PC and a USB cable to connect your phone to the PC.
3. Flashing the factory firmware will wipe all the data present in the internal memory. So, make a backup of that if you can.
4.Install all the necessary Device drivers.
DOWNLOADS -
1. Download the flash tools from here . http://www.mediafire.com/download/87gfz7mdch188an/Flashtools_For_Yu_Yureka.zip
2. Download the factory firmware from Here (cm 12.1) . http://builds.cyngn.com/factory/tomato/cm-12.1-YOG4PAS3JM-tomato-signed-fastboot.zip
Steps To Flash Factory Firmware –
1. Extract the flashtools zip in a new folder on the desktop.
2. Extract the factory firmware zip in the same folder and make sure that all of the flashtools files are also present.
3. Now, power off your phone. If you are stuck in a bootloop, then pull out the battery and reinsert it. (Do not switch on the phone.)
4. While pressing the Volume Up key, connect your phone to the PC with the help of a USB cable.
5. You should now see the fastboot logo on your device. If you did, leave the Volume Up key. (If you do not see the logo, retry the process.)
6. Now go to the folder where you extracted the flash tools and factory firmware and run the flash-all.bat by double clicking on it.
7. A command window will open and the flashing procedure will start. (Make sure that your device does not disconnect from your PC during the procedure.)
8. The command window will automatically close once the procedure is completed.
9. Disconnect your device and boot it up by pressing the Power button. (Since this is first boot after flashing the firmware, it may take upto 5 minutes.)
Done you should be back on cm 12.1
Credits – ArnavG (Yuplaygod Forums) and Cyanogen Team.
Click to expand...
Click to collapse
Bro tried that but nothing........

rss3183 said:
Bro tried that but nothing........
Click to expand...
Click to collapse
Can you be more specific ? Are you facing boot loop too?

anybody please help... facing the same problem and tried the solution as mentioned above but still facing Boot loop. what to do friends. please reply

I suddenly faced bootloop.....then I tried to flash stock rom without root...as a web page suggested me that....it was flashed successfully ...but still I am facing bootloop issue .....can someone pls help me to get out of this mess....pls help me...ASAP !!!

arunbiju969 said:
Hey are you able to boot into fastboot mode? If you can....
Prerequisites –
1. Make sure that you have 70-80% battery on your phone.
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as its in boot loop battery has come to an end.... now what? having same problem as the topic creator

If you can boot into fastboot try flashing the Twrp from a computer,if you need steps on how to flash Twrp Post here if the flash is successfull boot into recovery and flash A new rom and this should boot your device

arunbiju969 said:
If you can boot into fastboot try flashing the Twrp from a computer,if you need steps on how to flash Twrp Post here if the flash is successfull boot into recovery and flash A new rom and this should boot your device
Click to expand...
Click to collapse
I flashed the factory image via YGDP tool as well as fastboot. But it boots upto a point and then goes in bootloop. Also if i wipe data/cache still it makes no difference. Also unlocked bootloader and twrp also don't load up. Again goes in bootloop.

Yogesh1969 said:
I flashed the factory image via YGDP tool as well as fastboot. But it boots upto a p loopoint and then goes in bootloop. Also if i wipe data/cache still it makes no difference. Also unlocked bootloader and twrp also don't load up. Again goes in bootloop.
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were you trying to flash the twrp for the first time?? Was your yureka plus on stock kitkat??

Sorry for a late reply...
arunbiju969 said:
were you trying to flash the twrp for the first time?? Was your yureka plus on stock kitkat??
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The problem got solved bcos it had a battery problem !!!! Battery showed 90-100%, but could not hold up on boot.
A very strange case. Thanks.

Hi, I flashed my Yu Yureka AO5512 Yesterday and entered into recovery mode and selected the wipe userdata option. When it was doing the process after 20min the process stopped all together and My phone does not start at all now. If i press any button there is no response at all. Looks like phones OS and everything is wiped out. How do i go about from here?

Same problem , Stuck in BootLoop
arunbiju969 said:
were you trying to flash the twrp for the first time?? Was your yureka plus on stock kitkat??
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Click to collapse
Bro , my Yureka was on Stock Lollipop (5.1) and i flashed Twrp 2.8x.x on it and now it''s Stuck in bootloop , i can't turn of the phone nor it starts , what should i do , any help appreciated
Thanks

YuganshT7 said:
Bro , my Yureka was on Stock Lollipop (5.1) and i flashed Twrp 2.8x.x on it and now it''s Stuck in bootloop , i can't turn of the phone nor it starts , what should i do , any help appreciated
Thanks
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Click to collapse
Sorry to hear that anyway,
By stock lolipop you mean you had the yureka plus with Volte From factory right!!...if so the twrp might have been for the yureka plus with the cm bootloader which got replaced in the new Devcice

I am facing the same problem and in my case I dont think its an battery issue...I was happily using the CM 13.0 Snapshot Rom since a long time...but today morning when I did a soft reset by going into the settings in my yureka...the phone has gone in bootloop...and nothing is working...using fastboot I even flashed the twrp again and also flashed the CM 12.0 Stock firmware..but nothing is working...after the YU logo it restarts....please help...

I am also facing problem maybe worst
I dont know what wrong I am doing but I am getting "FAILED (remote: unknown command)".
Few info:
1. I get my device ID when I do "fastboot devices" but nothing on fastboot -i 0x1ebf oem device-info".
2. Also for my YU5510A fastboot screen doesnt say' "fastboot" it says "Information do not unplug the cable - Secure Phone".
3. I have red light on, phones keeps rebooting 4-5 times than red light goes off and charging stops.

Aditi Apte said:
I dont know what wrong I am doing but I am getting "FAILED (remote: unknown command)".
Few info:
1. I get my device ID when I do "fastboot devices" but nothing on fastboot -i 0x1ebf oem device-info".
2. Also for my YU5510A fastboot screen doesnt say' "fastboot" it says "Information do not unplug the cable - Secure Phone".
3. I have red light on, phones keeps rebooting 4-5 times than red light goes off and charging stops.
Click to expand...
Click to collapse
Ignore that and use other fastboot commands and go ahead, as your device is being detected in fastboot mode.

FAILED (remote: unknown command)
Yogesh1969 said:
Ignore that and use other fastboot commands and go ahead, as your device is being detected in fastboot mode.
Click to expand...
Click to collapse
But when I am executing other fastboot commands it halts the process between with error "FAILED (remote: unknown command)".
I have read about this error and people suggested that I need to get into "Download mode" not "fastboot/bootload". To get into "download" mode I tried pressing "VoulumeDown+Power+Home", but nothing happened, it simply restarted the phone.
Please advise.
-Aditi