Database Users

[Q] phone not booting!

So I was following all the steps from this thread: http://forum.xda-developers.com/showthread.php?t=2010312
and I did flash the stock 4.2 img. Now, after unlocking the boot loader, i didnt exit the fastboot mode and stayed in. And continued the steps of section D (all of it). Then I did a fastboot reboot , and Google appeared and below it unlocked lock and then the jellybean logo. It's been almost 20 min and it hasn't passed that screen yet. The rainbow colour X.
What do I do to fix this?? I can go back to fastboot mode, but not sure what to do. I did the fastboot erase cache before rebooting my phone!

Look at the notes of section D.
You have to reboot into recovery, clear cache and factory reset.
Sent from my Nexus 4

El Daddy said:
Look at the notes of section D.
You have to reboot into recovery, clear cache and factory reset.
Sent from my Nexus 4
Click to expand...
Click to collapse
I did this though: 13) Erase the cache partition: fastboot erase cache
14) Reboot: fastboot reboot
Okay, and I will try to do that now.

El Daddy said:
Look at the notes of section D.
You have to reboot into recovery, clear cache and factory reset.
Sent from my Nexus 4
Click to expand...
Click to collapse
I booted myself into recovery via fastboot and it shows android laying down with a red triangle and inside that its " ! "
What now?

Press volume up and power at the same time. It will open the menu.
Sent from my Nexus 4

LimitsX said:
I booted myself into recovery via fastboot and it shows android laying down with a red triangle and inside that its " ! "
What now?
Click to expand...
Click to collapse
Flash it again using fastboot and the official Google image. Recent nexus devices are strange, i never had problems before but softbricked both nex4 and 7 just like that. If you can enter fastboot mode all is well though.

Ps. That tutorial, that was the longest one I've seen in my life. Are you aware that Google images contain clickme.bat files? You literally click it and it's done. Just make sure you have fastboot and adb installed. You can extract them from nexus toolkit as well.
If you do wanna make it by hand, also no problem. Download the image from here:https://developers.google.com/android/nexus/images
And type:
fastboot flash bootloader bootloader-maguro-primekk15.img
fastboot reboot-bootloader
fastboot flash radio radio-maguro-i9250xxkk6.img
fastboot reboot-bootloader
fastboot -w update image-yakju-icl53f.zip
Exchange the correct names of course. And make sure you're in fast boot mode.

El Daddy said:
Press volume up and power at the same time. It will open the menu.
Sent from my Nexus 4
Click to expand...
Click to collapse
Do I do that on that screen? I did, and it went into completely black screen.

molesarecoming said:
Ps. That tutorial, that was the longest one I've seen in my life. Are you aware that Google images contain clickme.bat files? You literally click it and it's done. Just make sure you have fastboot and adb installed. You can extract them from nexus toolkit as well.
If you do wanna make it by hand, also no problem. Download the image from here:https://developers.google.com/android/nexus/images
And type:
fastboot flash bootloader bootloader-maguro-primekk15.img
fastboot reboot-bootloader
fastboot flash radio radio-maguro-i9250xxkk6.img
fastboot reboot-bootloader
fastboot -w update image-yakju-icl53f.zip
Exchange the correct names of course. And make sure you're in fast boot mode.
Click to expand...
Click to collapse
Okay, im gonna go and do that! Thanks!
I was trying to mount the sdcard with nexus 4 but it wont do that with CWM and TWRP.

okay I think I just lost access to everything on my phone :|. I am still on TWRP, is there anything I can do with that?
I accidentally wiped the system files ugh. So I lost bootloader which means my phone is empty and useless and im still active on TWRP.
This is what I did in TWRP:
went to WIPE menu and did the following:
1)Wipe Cache
2)Dalvik Cache
3)Factory Reset
4)Wipe System
5)Wipe External storage ( didn't work - failed)
6)Wipe Internal storage (deleted)
So I have a boot loader still ?? or is that gone too? I am still active in TWRP. What are my options to fix this mess I've gotten myself into =\.

molesarecoming said:
Ps. That tutorial, that was the longest one I've seen in my life. Are you aware that Google images contain clickme.bat files? You literally click it and it's done. Just make sure you have fastboot and adb installed. You can extract them from nexus toolkit as well.
If you do wanna make it by hand, also no problem. Download the image from here:https://developers.google.com/android/nexus/images
And type:
fastboot flash bootloader bootloader-maguro-primekk15.img
fastboot reboot-bootloader
fastboot flash radio radio-maguro-i9250xxkk6.img
fastboot reboot-bootloader
fastboot -w update image-yakju-icl53f.zip
Exchange the correct names of course. And make sure you're in fast boot mode.
Click to expand...
Click to collapse
Yeah the thread is verbose, but its more of a tutorial than a "fix my fone nao!!!" Thread.
Efrant wrote it like that so users understand what they are doing.
Sent from my Nexus 4

so basically I have a dead phone?! =\. Anyone..help or point me in the right direction?

Nevermind. I figured it out and fixed it :victory: !!

El Daddy said:
Yeah the thread is verbose, but its more of a tutorial than a "fix my fone nao!!!" Thread.
Efrant wrote it like that so users understand what they are doing.
Sent from my Nexus 4
Click to expand...
Click to collapse
sure, didnt want to apply its not good or anything. its nice to know that google gives you some sort of emergency option, i've used it countless of times.

LimitsX said:
okay I think I just lost access to everything on my phone :|. I am still on TWRP, is there anything I can do with that?
I accidentally wiped the system files ugh. So I lost bootloader which means my phone is empty and useless and im still active on TWRP.
This is what I did in TWRP:
went to WIPE menu and did the following:
1)Wipe Cache
2)Dalvik Cache
3)Factory Reset
4)Wipe System
5)Wipe External storage ( didn't work - failed)
6)Wipe Internal storage (deleted)
So I have a boot loader still ?? or is that gone too? I am still active in TWRP. What are my options to fix this mess I've gotten myself into =\.
Click to expand...
Click to collapse
for the next time, you better learn what all this stuff is and means which you are flashing. i cant help but thinking its dangerous what you're doing there. if you are in twrp you're free to install any rom, your phone is pretty much safe if you can access it. wiping system wont kill your bootloader, system is a partition, your rom gets installed in there. you can wipe it, most roms even do it by default in the installation script. if your bootloader is gone you'll know.

TWRP bootloop

Hi, I've just done a standard factory reset while using TeamCanjica Cyanogenmod 12 ROM for I9500. Now it's looping with the "teamwin" screen, even when doing a standard boot (not willing to go to recovery). The recovery isn't loaded either, it just loops on that screen.
I've tried to reinstall the recovery with ODIN, but the same happens.
Any idea? Thanks

Likely a hardware issue. One or possibly both buttons in the key combo may be stuck.

It happened just after doing the factory reset. I disassembled the phone and cleaned it completely, but it's still looping.

Try booting into fastboot and running
fastboot erase cache
fastboot reboot
Hope this helps

ndlarsen said:
Try booting into fastboot and running
fastboot erase cache
fastboot reboot
Hope this helps
Click to expand...
Click to collapse
No Samsung device has fastboot.

Lennyz1988 said:
No Samsung device has fastboot.
Click to expand...
Click to collapse
Guess I gave a useless advise and stand corrected, then.

I've just fixed it. It turns out that there wasn't any hardware issue, it seems like some boot code got corrupted. The only way I found to fix it was to flash stock firmware and repartition the device.
Thanks anyway folks

Can't fix bootloop

Hello recently my phone battery went dead than after I charged it I got "optimizing apps" and it just couldn't finish. So then I did "flash stock and unroot" and now I'm stuck with bootloop. Wiping data with stock recovery didn't work, I've tried it many times.

Did you try using fastboot commands to erase userdata, flash userdata.img, and factory wipe before first booting the phone?

I think not, please tell me how to do that :$

Extract the userdata.img file from the stock Google ROM you are flashing.
Boot the phone into fastboot mode, connect the phone to the computer, type "fastboot erase userdata" and press enter. Then type "fastboot flash userdata userdata.img" and press enter. The userdata.img file should be in the same directory where you execute fastboot commands. When the flash has completed, use the volume and power button to go into recovery, wipe data, and reboot.

My PC doesn't even want to recognize my phone...
http://i.imgur.com/E7MYAKX.png

Is the phone in fastboot before it is connected to the computer?

Yeah, it is. Edit: I think I made a mistake because i wrote "adb devices" instead of "fastboot devices". Edit 2: Still stuck in bootloop. Somehow I managed to instal CM 12 but now I have infinite "starting apps".

It could be stuck because you need to flash the userdata.img file.

I have a similar issue here, Wiped, formatted, resized, reflashed bootloader, radio, recovery, system, userdata, cache. Tried stock lollipop, cm12, cm13, everytime each rom flashes successfully. However, upon loading the custom bootloader animation, it stucks there forever. This happens matters not that flash each partition individually, install the zip via TWRP, or ADB sideload. Is there a live boot/verbose option so I can see where it is hanging? I tried so many times it almost feel like it is a hardware issue.

After flashing each stock partition, including userdata.img, are you booting into stock recovery to perform a factory wipe before the first boot of the newly-flashed stock ROM?

audit13 said:
After flashing each stock partition, including userdata.img, are you booting into stock recovery to perform a factory wipe before the first boot of the newly-flashed stock ROM?
Click to expand...
Click to collapse
so I tried to enter recovery with stock 5.1, android with red ! pops up, but no "no command" line. I can't press volume up/power to enter recovery.. thought it is a fluke, I reflashed everything with 4.4.4 stock, same problem, cannot enter stock recovery. what am I missing here?
edit: dumb question, I held the button in wrong sequence, yes I factory wiped and still hangs on boot image

When you went into recovery, did you see an error line at the bottom that said something like invalid format or invalid argument? In recovery, did screen at the bottom say that the cache and data were formatted?

audit13 said:
When you went into recovery, did you see an error line at the bottom that said something like invalid format or invalid argument? In recovery, did screen at the bottom say that the cache and data were formatted?
Click to expand...
Click to collapse
enter recovery "fail to mount cache"
factory reset
"format system"
"format cache"
done
reboot----> hangs

That is what I was hoping to see but it's strange that the phone still hangs.
Maybe boot back into ft aboot be run the commands "fastboot erase cache", "fastboot erase userdata" and reboot.

audit13 said:
That is what I was hoping to see but it's strange that the phone still hangs.
Maybe boot back into ft aboot be run the commands "fastboot erase cache", "fastboot erase userdata" and reboot.
Click to expand...
Click to collapse
done, phone still hangs, do I just need go get another motherboard?

I'm out of ideas and another motherboard may be the only solution. You've done everything I would have done.

ddvche said:
done, phone still hangs, do I just need go get another motherboard?
Click to expand...
Click to collapse
FYI I took the unbootable motherboard out, swap it into a nexus with broken digitizer. Turned it on, and it booted.... so the fix wasn't replacing the motherboard... it was replacing everything else...... probably was a connection issue yes?

In post number 13, you formatted the system?

audit13 said:
In post number 13, you formatted the system?
Click to expand...
Click to collapse
Heh, I think I meant "internal storage"/"data" partition. If no OS it wouldn't hang, just reboot to recovery if I remember correctly.

After flashing stock KK or LP, are you also flashing userdata.img and then booting into stock recovery to format/wipe data before booting the ROM for the first time?

please helpe me

i try instaling cortex 7.00( 7.1.2) after al is ok after the phone reboot evry time when i using i try wipe data with twrp
after reboot the phon don t rebot just bootloop i try unstaling stock image with toolkit evry think is ok but the same brob just bootloop i can enter in fastboot mode but not in stock recovery
samone know the solution ?or my fhone is dead

leroilion02 said:
i try instaling cortex 7.00( 7.1.2) after al is ok after the phone reboot evry time when i using i try wipe data with twrp
after reboot the phon don t rebot just bootloop i try unstaling stock image with toolkit evry think is ok but the same brob just bootloop i can enter in fastboot mode but not in stock recovery
samone know the solution ?or my fhone is dead
Click to expand...
Click to collapse
Since your phone is unlocked, I would try to flash a full Google image using the included flash-all.bat (instructions are on the same page as the image downloads). Not being able to access recovery mode may indicate a more serious problem.

v12xke said:
Since your phone is unlocked, I would try to flash a full Google image using the included flash-all.bat (instructions are on the same page as the image downloads). Not being able to access recovery mode may indicate a more serious problem.
Click to expand...
Click to collapse
do you think my phone still alive

leroilion02 said:
do you think my phone still alive
Click to expand...
Click to collapse
Too early to tell. Google intended the image files to be a foolproof way to "reset" the phone to factory stock. This is the first thing you have to try. Set up ADB/Fastboot on your PC and use it to communicate with, and send commands to your phone.

I've gotten myself into the same situation a few times and flashing the full stock image with flash-all.bat command has always gotten me out of it so far. After I'm back on stock I just start from scratch again and flash recovery, custom rom and root.

jhs39 said:
I've gotten myself into the same situation a few times and flashing the full stock image with flash-all.bat command has always gotten me out of it so far. After I'm back on stock I just start from scratch again and flash recovery, custom rom and root.
Click to expand...
Click to collapse
i flash the full factory image with fastboot all is ok after fishing just bootloop i don t know what is the probleme

leroilion02 said:
i flash the full factory image with fastboot all is ok after fishing just bootloop i don t know what is the probleme
Click to expand...
Click to collapse
fastboot FORMAT (not erase or wipe) userdata, cache and system capturing the screen (or text from each command). Try flash-all.bat again. Which image are you flashing?

v12xke said:
fastboot FORMAT (not erase or wipe) userdata, cache and system capturing the screen (or text from each command). Try flash-all.bat again. Which image are you flashing?
Click to expand...
Click to collapse
the last android 7.1.1
when i flash with flash-all.bat the note progresse he stop with message fichier not fond

leroilion02 said:
the last android 7.1.1
when i flash with flash-all.bat the note progresse he stop with message fichier not fond
Click to expand...
Click to collapse
do you think my phone can reboot

leroilion02 said:
do you think my phone can reboot
Click to expand...
Click to collapse
Can you enter recovery mode after all you have tried? Or do you only have access to fastboot in broader?
Sent from my Nexus 6P using XDA-Developers Legacy app

CyberpodS2 said:
Can you enter recovery mode after all you have tried? Or do you only have access to fastboot in broader?
Sent from my Nexus 6P using XDA-Developers Legacy app
Click to expand...
Click to collapse
just fastboot

leroilion02 said:
do you think my phone can reboot
Click to expand...
Click to collapse
I don't know, you're providing conflicting information. What happened when you fastboot formatted each of the 3 partitions?

v12xke said:
I don't know, you're providing conflicting information. What happened when you fastboot formatted each of the 3 partitions?
Click to expand...
Click to collapse
when i flash the phon on fastboot al is ok the bootloader after the radio after the system after vendor all ok the phon just bootloop
when i try flash with flash-all.bat the procedur don t progress just the radio and bootlaoder after just error message files don t exist

leroilion02 said:
when i flash the phon on fastboot al is ok the bootloader after the radio after the system after vendor all ok the phon just bootloop
when i try flash with flash-all.bat the procedur don t progress just the radio and bootlaoder after just error message files don t exist
Click to expand...
Click to collapse
No. Fastboot FORMAT the 3 partitions (for the 3rd time). Capture the response from each of these commands:
fastboot format userdata
fastboot format cache
fastboot format system

v12xke said:
No. Fastboot FORMAT the 3 partitions (for the 3rd time). Capture the response from each of these commands:
fastboot format userdata
fastboot format cache
fastboot format system
Click to expand...
Click to collapse
ok i try tomorow and i tell you the Result

Help me fix my bootlooping N6P

While I was on vacation my N6P (Android 6.01 MTC20L) decided it was time to give me the bootloop of death - talk about timing!
I have a recent backup I made via Flashfire saved on my PC but I need to get my phone booted - at least temporarily.
As I said my phone is on 6.01, but the fix offered by @XCnathan32 (https://forum.xda-developers.com/nexus-6p/general/guide-fix-nexus-6p-bootloop-death-blod-t3640279) is for Nougat and above. So what are my options?
- Should I use fastboot to upgrade to Nougat or Oreo then apply the fix?
- How do I dirty flash N or O without losing my data?
- Any ideas on the heating notion? Some people have had their phones working using a blow/hair dryer..is it dangerous to heat the phone? Will any parts get damaged?
Any response would be useful to me, thanks!

boeder9 said:
While I was on vacation my N6P (Android 6.01 MTC20L) decided it was time to give me the bootloop of death - talk about timing!
I have a recent backup I made via Flashfire saved on my PC but I need to get my phone booted - at least temporarily.
As I said my phone is on 6.01, but the fix offered by @XCnathan32 (https://forum.xda-developers.com/nexus-6p/general/guide-fix-nexus-6p-bootloop-death-blod-t3640279) is for Nougat and above. So what are my options?
- Should I use fastboot to upgrade to Nougat or Oreo then apply the fix?
- How do I dirty flash N or O without losing my data?
- Any ideas on the heating notion? Some people have had their phones working using a blow/hair dryer..is it dangerous to heat the phone? Will any parts get damaged? Any response would be useful to me, thanks!
Click to expand...
Click to collapse
More information would be useful to determine whether you really have BLOD or just bootlooping. What were you doing when it bootlooped? Was it just spontaneous? Are you able to access stock recovery or TWRP? Do you have a stable fastboot mode? If so, two options to try would be to use ADB to update using a newer version full OTA (eg. 7.0.0 (NRD90T)) or flash a full image (not OTA) with flash-all.bat, removing the -w (wipe) switch. Both of these methods will leave your data intact. If you don't have access to recovery mode (bootloops on selecting) or an unstable fastboot mode, then you are pretty much left with the hairdryer.

v12xke said:
More information would be useful to determine whether you really have BLOD or just bootlooping. What were you doing when it bootlooped? Was it just spontaneous? Are you able to access stock recovery or TWRP? Do you have a stable fastboot mode? If so, two options to try would be to use ADB to update using a newer version full OTA (eg. 7.0.0 (NRD90T)) or flash a full image (not OTA) with flash-all.bat, removing the -w (wipe) switch. Both of these methods will leave your data intact. If you don't have access to recovery mode (bootloops on selecting) or an unstable fastboot mode, then you are pretty much left with the hairdryer.
Click to expand...
Click to collapse
Thanks for the response.
- Phone was idle for a few moments thats when the bootlooping started.
- I was rooted (bootloader unlocked) with TWRP, I am unable to access it, takes me to the bootloop again
- What do you mean by stable fastboot. I can get to the fastboot mode by power button, volume down, remains there (if that's what you mean?)

boeder9 said:
Thanks for the response.
- Phone was idle for a few moments thats when the bootlooping started.
- I was rooted (bootloader unlocked) with TWRP, I am unable to access it, takes me to the bootloop again
- What do you mean by stable fastboot. I can get to the fastboot mode by power button, volume down, remains there (if that's what you mean?)
Click to expand...
Click to collapse
No access to Recovery mode is one hallmark of the BLOD. Without Recovery you have no ADB, even if it was enabled previously. Stable fastboot mode means you can actually flash something successfully and it completes before bootlooping again. Many people who are unlocked can start flashing, but it won't finish -or- flashing completes successfully, but the phone never boots up. Try the following: fastboot format your system, userdata, and cache and observe for errors. Do these 3 complete successfully? Next, fastboot FLASH the latest TWRP to your recovery partition.... errors? Try fastboot BOOT the same in an effort to get a working Recovery where you have some additional tools. If these fail, you are looking at either RMA if eligible or replacing the phone.
fastboot format system
fastboot format userdata
fastboot format cache

v12xke said:
No access to Recovery mode is one hallmark of the BLOD. Without Recovery you have no ADB, even if it was enabled previously. Stable fastboot mode means you can actually flash something successfully and it completes before bootlooping again. Many people who are unlocked can start flashing, but it won't finish -or- flashing completes successfully, but the phone never boots up. Try the following: fastboot format your system, userdata, and cache and observe for errors. Do these 3 complete successfully? Next, fastboot FLASH the latest TWRP to your recovery partition.... errors? Try fastboot BOOT the same in an effort to get a working Recovery where you have some additional tools. If these fail, you are looking at either RMA if eligible or replacing the phone.
fastboot format system
fastboot format userdata
fastboot format cache
Click to expand...
Click to collapse
Do these commands (espec system and userdata) erase my data and app data/personal files?
Ill try these and get back

boeder9 said:
Do these commands (espec system and userdata) erase my data and app data/personal files? Ill try these and get back
Click to expand...
Click to collapse
Formatting userdata will, but you won't be saving anything if you can't access recovery. If you like, try formatting system and cache first. Look for errors. Then try fastboot flashing or fastboot booting TWRP. The action of formatting each partition will tell you if there is a problem with the internal memory, and correct it (if possible).

v12xke said:
Formatting userdata will, but you won't be saving anything if you can't access recovery. If you like, try formatting system and cache first. Look for errors. Then try fastboot flashing or fastboot booting TWRP. The action of formatting each partition will tell you if there is a problem with the internal memory, and correct it (if possible).
Click to expand...
Click to collapse
OK so I did fastboot format cache, finished fine (see attached)
Haven't done format system, is it safe? what will the system formatting erase?
As for TWRP do you mean fastboot flash recovery twrp.img?
EDIT: after the cache format I'm getting 1-2 red LED flashes before each bootloop, is this the battery being down? If I turn off the device, hook up the charger it shows a full battery with electricity charge sign and phone boots again to bootloop.

boeder9 said:
OK so I did fastboot format cache, finished fine (see attached)
Haven't done format system, is it safe? what will the system formatting erase?
As for TWRP do you mean fastboot flash recovery twrp.img?
EDIT: after the cache format I'm getting 1-2 red LED flashes before each bootloop, is this the battery being down? If I turn off the device, hook up the charger it shows a full battery with electricity charge sign and phone boots again to bootloop.
Click to expand...
Click to collapse
System is a read only partition. Formatting it will not cause any data loss of yours, but will temporarily render the phone not bootable... BUT It can easily be restored via fastboot from any factory image. You just extract and flash the system image back to the system partition. Userdata is your personal data. When you format that partition your personal data will be gone. You did mention you had a FF backup so I'm guessing that was on the backup.
Yes on flashing TWRP. If after FLASHING twrp you cannot access Recovery, then try BOOTING recovery- fastboot boot recovery twrp.img
If you get to a point where nothing is working and you decide to format system and userdata and they complete successfully, you can flash a full Google image using flash-all.bat
Not sure about the LED's but just make sure your battery is close to fully charged. You didn't ever mention an battery issue, so there shouldn't be one. If in doubt hook the charger up and let it sit before proceeding.

@v12xke
Thank you for all your help. I left the phone on charge and let it bootloop for a good period of time and went out, came back and it was booted. I disabled the big clusters as suggested by @nicotinic in ElementalX and the device appears to be working fine aside from a little lag. I can live with that
Currently doing a little ADB pull, then will clear some space for a full nandroid backup!
Thanks a bunch to you both.