Database Users

[Help]Looped bootup after update

After I was presented with a system update about a week ago my nexus s entered a boot loop, not knowing why I tried to restart it a couple of types via removing the battery. That didn't work so I entered the Fastboot mode and tried to go into recovery but I couldn't do that because I was then presented with a exclamation mark like picture on my Nexus S, My phone was rooted before because I wanted to install Miui rom, then when I went back to stock rom and everything seemed to work fine, but when I tried to change my rom again it said I wasn't rooted but on my bootsceen it says I'm unlocked. I also did a permission test, from here I don't know what to do if anyone could help me I'd be very grateful.

BumpBumpBump

Flash clockwork recovery, through fast boot.
restore or flash new rom
Sent from my Nexus S using XDA Premium App

Alrighty, I flashed Clockwork recovery, now thats left is to flash another rom.

[Q] TWRP nor CWM will successfully wipe/format data

First, I searched and read all relevant threads concerning this issue. The five threads that showed up in the search did not help me solve my issue.
So on to my problem. I can no longer flash any rom onto my device. I attempted to flash the first official CM10 nightly (which I recently found out was not flashing properly for others) and had no success. I simply got a black screen and nothing more. I eventually got back into TWRP (v2.2.1.4) to try and Nandroid restore, but I noticed that /data was not formatting and the restore failed. Every time I would slide the bar across to confirm the restore TWRP would reboot itself. I then flashed CWM (v6.0.1.0) and the same problems were there. After that I flashed an earlier version of TWRP and successfully restored the backup. I'm not 100% sure how it was successful. So I decided to try flashing another ROM and no go. Same problems. Anyone have any ideas? When I was using CWM I got the error message below.
Code:
E: unable to locate volume information
E: unable to open ums lunfile '/sys/devices/platform/usb_mass_storage/lun0/file'
E: unable to format data
I'm running Bugless Beast with Motley #219

I'm having similar, if not identical problems. After flashing TWRP 2.2.1.4, I tried flashing a rom and gapps; the tablet would boot endlessly into recovery. Nothing I did would do anything, so I flashed the stock image to start over. This time, I used CWM 6.0.1.0 touch to make sure that it wasn't the recovery that was causing the problem. However, now after flashing the rom and gapps, instead of booting into recovery, I got stuck at a black screen and had to hold the power button in order to get back to the bootloader.
Now, like you, it seems I can't flash any roms anymore. It's frustrating to say the least.
Sent from my Galaxy Nexus using xda app-developers app

aznxk3vi17 said:
I'm having similar, if not identical problems. After flashing TWRP 2.2.1.4, I tried flashing a rom and gapps; the tablet would boot endlessly into recovery. Nothing I did would do anything, so I flashed the stock image to start over. This time, I used CWM 6.0.1.0 touch to make sure that it wasn't the recovery that was causing the problem. However, now after flashing the rom and gapps, instead of booting into recovery, I got stuck at a black screen and had to hold the power button in order to get back to the bootloader.
Now, like you, it seems I can't flash any roms anymore. It's frustrating to say the least.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
What rom did you attempt to flash?

elementur said:
What rom did you attempt to flash?
Click to expand...
Click to collapse
So do I.I attempted to flash the first official CM10 8.18 nightly and had no success. I just got a black screen.Even more I boot into bootloader and choose to boot into recover but just stay at google logo.I try to flash recover once more,but just can't boot into recover!!

I have the same problem, i flashed the cm10 nightly which I learned would not boot. No I have no backup to boot to, and cannot even push a new rom to the storage to try to install.

Shano56 said:
I have the same problem, i flashed the cm10 nightly which I learned would not boot. No I have no backup to boot to, and cannot even push a new rom to the storage to try to install.
Click to expand...
Click to collapse
Can't boot into recover,does anyone know what is wrong?When it is in android I can use APM boot into recover or via ADB,but unusually when it is in the bootloader I choose to boot into recover,it just stay at google logo!!What it is going wrong?

phiracle said:
Can't boot into recover,does anyone know what is wrong?When it is in android I can use APM boot into recover or via ADB,but unusually when it is in the bootloader I choose to boot into recover,it just stay at google logo!!What it is going wrong?
Click to expand...
Click to collapse
There is a bug with the Nexus 7 where you cannot access the recovery through the bootloader. To fix this, boot up into the bootloader on your nexus 7 and, without doing anything, plug it into the computer you used for rooting it and then select the option Restart bootloader and press the power button. Once it gets you back into the bootloader again select Recovery mode and press the power button. It will now get you into the recovery and once you're in recovery you can unplug your tablet from the computer. Note that this fix is not permanent and you will have to do this every time you wish to access your recovery via the bootloader (and this problem is not relevant to the OP's problem).

android1234567 said:
There is a bug with the Nexus 7 where you cannot access the recovery through the bootloader. To fix this, boot up into the bootloader on your nexus 7 and, without doing anything, plug it into the computer you used for rooting it and then select the option Restart bootloader and press the power button. Once it gets you back into the bootloader again select Recovery mode and press the power button. It will now get you into the recovery and once you're in recovery you can unplug your tablet from the computer. Note that this fix is not permanent and you will have to do this every time you wish to access your recovery via the bootloader (and this problem is not relevant to the OP's problem).
Click to expand...
Click to collapse
Thank You Very Much!!!

I am having much the same problem as the OP. I finally rooted my Nexus 7 using WugFresh's Nexus Root Toolkit. It seemed all went well. I chose to use TWRP in a first attempt to install a ROM (I was on rooted stock), and following the instructions for installing my chosen ROM I went into it to wipe cache, Dalvic Cache and data. Both cache and dalvic cache wiped without issue, but when I attempted to wipe /data TWRP simply reported that it failed. With that failing, I did not attempt to install a rom. I was still able to boot out of recovery, but even with repeated attempts wiping data always failed. Is any one aware of any solution or have any suggestions. Thank you!

[Q] Can't access recovery anymore (unlocked bootloader)

I unlocked my bootloader awhile back when the exploit first came to light and have been enjoying it mostly problem free since.
I've been using CWM with CM10.1 for the most part but the issues I was having with CM were finally getting to me so I thought I'd just try a debloated stock ROM, and thought it was a good time to try out TWRP while I was clearing everything out.
So I loaded up Matt's tool and flashed the stock ROM back (because for some reason my computer doesn't like to recognize CM over USB), no problems there. At the suggestion of the tool I also flashed the stock recovery (since I intended to flash TWRP I figured it was a good idea). Here's where my problem lies now: The phone boots fine back into stock ROM and I can get back into fastboot no problem but if I try to get into recovery (after flashing stock, CM or TWRP) I only get the opened up Android with the red triangle/exclamation.
Is there some step I need to take that I'm not?
I boot into fastboot and flash recovery (stock). Boot normally wait a couple min (skip setting up accounts, etc) then flash the custom recovery but I seem to end up back at the broken android every time.
EDIT: I might just be an idiot. I completely forgot to root the stock ROM before trying to put the custom recovery back.

Broken android is stock recovery...
Sent from my XT907 using Tapatalk 4

Zenfone2 works but no recovery

OK I had an issue awhile back where my phone really took a crap. Not sure what happened, it is not rooted. But it would not boot, would just go to a dead android. No recovery, nothing. So 2 days of playing around with different programs, I finally got it to boot normally and all seemed well. Now I got a message for a new update and it reboots and does nothing. If I check for updates it downloads it again and does the same thing.
So I tried to boot to recovery and I don't have a recovery now. I get to the fastboot screen(I think that's what it's called) and select recovery. Just reboots. I connected to my laptop and issued the adb reboot recovery, same thing, just reboots. Adb reboot bootloader works however.
So if I have no recovery, how do I re install the recovery? I'm to the point where I might just buy a new one, as fast charging doesn't even seem to work anymore but I'd rather not, I really like this phone.
Thanks for any help you can give.

I believe if you download the proper firmware for your phone, you should be able to extract the recovery image and flash it through ADB. ( fastboot flash recovery recovery.img). As long as you have Asus drivers and ADB installed, you should be able to. I'm sure this is how I reflashed my recovery after I accidentally wiped it.
Sent from my ASUS_Z00AD using XDA-Developers mobile app

Thanks Quicksilver, I'll give that a try. I was a lot more up on all this stuff a few years ago when I used to root every device I got. I've been happy with the stock Zenfone 2 so I haven't messed around with this stuff for a long time!

You're welcome Bluze. I hope this for you.
Sent from my ASUS_Z00AD using XDA-Developers mobile app

That didn't work. It seemed to flash recovery.img ok, but still no recovery mode.

Wow, I don't know what exactly worked but I have a recovery now. I finally just bit the bullet and unlocked the bootloader, then used a tool that supposedly roots and installs Clockworkmod. Well, it didn't work. Sort of. I was able to get to cwm recovery one time before I rebooted but it was all back to "normal" (no recovery and not rooted). Rom Manager would hang when I tried to reboot to recovery. So I downloaded SuperSU and installed it manually. Ta Da! Root! Tried to reboot to recover and dead android. Pressed power and volume up and for the first time, it rebooted to stock recovery! Still no CWM, and I'm not sure it will work on Zenfone 2 but hey, I got my recovery back! Now I won't be able to do OTA upgrades but at least I can do them manually!
Quicksilver, your suggestion should have worked. It didn't, but thanks for the help!

Screen stuck on preparing to start.. starting app.. after flashing crdroid 6.0.1

I had rooted my phone by unlocking the bootloader using adb fastboot method, then flashing the TWRP revocery V2.8.7.0, and then flashing superSU v2.46.
After rebooting my yureka plus, and going to recovery it started cynogen recovery only, even though update cynogen recovery option was disabled.
So I flashed TWRP again and without rebooting again, just flashed crDroidAndroid-6.0.1-20160827-tomato.zip and GApps zip file from internal memory. The phone rebooted and worked fine after that..
but while playing a game the phone automatically rebooted and ever since have been stuck on Preparing to start.. Starting apps..
I had disabled the developer options because I thought it was working fine.
The phone is working behind the preparing to start screen.. I can hear the message notification and caller ringtone when someone messages or calls.
Any suggestions what I should do now? I have tried doing a factory reset from recovery but the problem persists.

khushboop said:
I had rooted my phone by unlocking the bootloader using adb fastboot method, then flashing the TWRP revocery V2.8.7.0, and then flashing superSU v2.46.
After rebooting my yureka plus, and going to recovery it started cynogen recovery only, even though update cynogen recovery option was disabled.
So I flashed TWRP again and without rebooting again, just flashed crDroidAndroid-6.0.1-20160827-tomato.zip and GApps zip file from internal memory. The phone rebooted and worked fine after that..
but while playing a game the phone automatically rebooted and ever since have been stuck on Preparing to start.. Starting apps..
I had disabled the developer options because I thought it was working fine.
The phone is working behind the preparing to start screen.. I can hear the message notification and caller ringtone when someone messages or calls.
Any suggestions what I should do now? I have tried doing a factory reset from recovery but the problem persists.
Click to expand...
Click to collapse
Try flashing it with stock rom or simple wipe the whole system and cache from twrp from advance wipe option ( but backup first ) and again flash the custom rom u used previously.

sk.shehbaz said:
Try flashing it with stock rom or simple wipe the whole system and cache from twrp from advance wipe option ( but backup first ) and again flash the custom rom u used previously.
Click to expand...
Click to collapse
It still opens in cyanogen recovery only, and there is no option for wiping dalvik cache or system. Since the usb debugging is of,f I cannot used cmd to flash twrp recovery again. By the way I still don't understand why twrp recovery is not loading.

khushboop said:
It still opens in cyanogen recovery only, and there is no option for wiping dalvik cache or system. Since the usb debugging is of,f I cannot used cmd to flash twrp recovery again. By the way I still don't understand why twrp recovery is not loading.
Click to expand...
Click to collapse
Get into fastboot and flash the stock rom via fastboot method.
I hope this guide can help u out
http://www.thetechnotriad.com/393/how-to-unbrick-yu-yureka/

sk.shehbaz said:
Get into fastboot and flash the stock rom via fastboot method.
I hope this guide can help u out
thetechnotriad.com/393/how-to-unbrick-yu-yureka/
Click to expand...
Click to collapse
Phone's hard bricked now.. even though I downloaded the flashing tools for lollipop from YUPlayGod's github page.

khushboop said:
Phone's hard bricked now.. even though I downloaded the flashing tools for lollipop from YUPlayGod's github page.
Click to expand...
Click to collapse
I still have no idea why it got bricked. So after searching on google and youtube I came across this: https://androidmtk.com/download-yu-stock-rom-for-all-models . I followed the steps and now KitKat is running except launcher is not working, instead play store open's every time I try to go to home screen. So tried the nova launcher but that still doesn't work with home button, have to open through playstore->my apps, every time. But rest is working.

sk.shehbaz said:
Get into fastboot and flash the stock rom via fastboot method.
I hope this guide can help u out
http://www.thetechnotriad.com/393/how-to-unbrick-yu-yureka/
Click to expand...
Click to collapse
dude!! i tried the above method and thankfully my phone is working now the only major problem now is whatsapp is not opening...when clicked opens for 0.01 sec and returns back to previous screen (flashes) ....please somebody help me with this. Anybody can help me, Thanks in Advance.