Stuck in Fastboot bootloop - ZenFone 2 Q&A, Help & Troubleshooting

I fumbled trying to flash a custom rom. I forgot to do the step where I unlock the bootloader. Now my phone is currently stuck on fastboot. If I choose the option to boot normally, my phone retarts and I am again in fastboot mode.
My goal here is to flash CM 13. Is this still possible? How can I get my phone to at least boot properly into recovery mode (it is rooted).

Fastboot flash stock recovery.

It worked. Thank you! I also went through all the steps again and have successfully installed a custom rom.

Related

Flash Custom Recovery but Recovery is still Stock

So, I have the X9046 variant, and I've tried to use the TWRP recovery here.
I went into fastboot, did fastboot flash recovery <recoverynamehere>.img, with no errors. But, when I reboot into recovery it goes into the stock recovery.
I even did fastboot boot <recoverynamehere>.img, and it would just be stuck in fastboot, until I forced a reboot.
Any ideas?
Griffrez said:
So, I have the X9046 variant, and I've tried to use the TWRP recovery here.
I went into fastboot, did fastboot flash recovery <recoverynamehere>.img, with no errors. But, when I reboot into recovery it goes into the stock recovery.
I even did fastboot boot <recoverynamehere>.img, and it would just be stuck in fastboot, until I forced a reboot.
Any ideas?
Click to expand...
Click to collapse
try this if you have trouble...
http://forum.xda-developers.com/find-7/development/recovery-recovery-installer-7-t2819794
lesscro said:
try this if you have trouble...
http://forum.xda-developers.com/find-7/development/recovery-recovery-installer-7-t2819794
Click to expand...
Click to collapse
I've used that before, and I've had the same problem.
No error during process ?
What are your build ?
stock or custom rom ?
Did you try to unlock bootloader ?
Griffrez said:
So, I have the X9046 variant, and I've tried to use the TWRP recovery here.
I went into fastboot, did fastboot flash recovery <recoverynamehere>.img, with no errors. But, when I reboot into recovery it goes into the stock recovery.
I even did fastboot boot <recoverynamehere>.img, and it would just be stuck in fastboot, until I forced a reboot.
Any ideas?
Click to expand...
Click to collapse
If you're running ColorOS, there might be a script that's part of ColorOS that restores the stock recovery. Not sure. (It's a common thing to see in most OEM firmware releases)

Unable to flash custom recovery

Hi,
I have the Find 7 with the new display panel.
I wanted to flash the latest version of TWRP but failed. I do not know what I did wrong.
I can use adb and fastboot without any problem. When trying to flash recovery, it says there that the flash was successful but when I reboot to recovery, TWRP was not installed and the original Oppo recovery is still there.
The bootloader is unlocked. And I tried relocking and unlocking again but to no avail. Whenever I use the command "fastboot oem unlock", nothing happens to the phone.
I am currently on spectrum. I want to try other roms such as the lite COS 2.15 and also maxwen roms since that only those supports the new panel.
I am also trying to get root for my phone and it is impossible without custom recovery.
Thanks for any help.
I had poop loads of issues with getting custom recovery on my Find 7a. Eventually I used these instructions:
http://community.oppo.com/my/forum.php?mod=viewthread&tid=996
They work. Don't know if it's the versions of ADB or Fastboot or something.
Give it a go
limbot said:
I had poop loads of issues with getting custom recovery on my Find 7a. Eventually I used these instructions:
http://community.oppo.com/my/forum.php?mod=viewthread&tid=996
They work. Don't know if it's the versions of ADB or Fastboot or something.
Give it a go
Click to expand...
Click to collapse
I will give it a go when I get back. Thanks!
This is what a forumer from the official forum said and it works:
After you had successfully flash recovery via fastboot, you MUST NOT reboot the device. AFAIK, if you reboot the device it will restore the recovery back to stock oppo recovery.
So instead, you need to immediately press vol down & power button on the fastboot screen. Keep holding the button until you see the TWRP recovery screen. Hope that helps. Cheers!""
faidz85 said:
Hi,
I have the Find 7 with the new display panel.
I wanted to flash the latest version of TWRP but failed. I do not know what I did wrong.
I can use adb and fastboot without any problem. When trying to flash recovery, it says there that the flash was successful but when I reboot to recovery, TWRP was not installed and the original Oppo recovery is still there.
The bootloader is unlocked. And I tried relocking and unlocking again but to no avail. Whenever I use the command "fastboot oem unlock", nothing happens to the phone.
I am currently on spectrum. I want to try other roms such as the lite COS 2.15 and also maxwen roms since that only those supports the new panel.
I am also trying to get root for my phone and it is impossible without custom recovery.
Thanks for any help.
Click to expand...
Click to collapse
Can u teach me how to unlock bootloader.. because when I flash twrp recovery img my fon stuck at fastboot menu, cannot enter the recovery menu.
Some say I get this problem becos I not unlock my bootloader..
Im trying to flash miui os..huhuhu
cikgutan said:
Can u teach me how to unlock bootloader.. because when I flash twrp recovery img my fon stuck at fastboot menu, cannot enter the recovery menu.
Some say I get this problem becos I not unlock my bootloader..
Im trying to flash miui os..huhuhu
Click to expand...
Click to collapse
fastboot oem unlock in bootloader mode.
azeem40 said:
fastboot oem unlock in bootloader mode.
Click to expand...
Click to collapse
Unlocking bootloader erases data?
Mine wouldn't flash recovery. It said successful but I still had oppo recovery 1.2 and it only worked when I found the latest official twrp over version 3. after flashing, I disconnected usb and then held down power button to shut the phone down. It then was able to boot to twrp ok.
I used the latest one.
https://dl.twrp.me/find7/

Only fastboot works on my zenfone.

Hi. I'm terribly lost.
I bought a ze500kl (z00ed) and played around with root, twrp and marshmallow. The last thing I did was installing marshmallow and then I wanted to flash twrp.
What I ended up with is a phone which you can't boot, you can't get into recovery and I'm not even able to flash any other recovery than the stock one. And even if I flash it 'successsuccessfully' I'm still not able to boot into it.
Code:
fastboot reboot-bootloader
yields the phone starting back into fastboot mode.
As far as I understood my bootloader seems to be locked.
How can I get my phone working again?
The command fastboot reboot-bootloader only boots you into the bootloader, meaning to the fastboot. If you want to boot to recovery, you need to select this option in the fastboot menu. I don't remember if you can use a fastboot command for that, and I can't turn off my phone to check.
On the ze500kl, when phone off, press vol- and power to enter recovery.
some progress
Thanks for the info. I did already try to wrok with the vol- button but it just keeps showing the ASUS and android logos and doesn't start twrp. I've succeeded to install the system thanks to the following site: (I c'an't post it cuz I'm not here long enough) however now I'm again not getting into twrp.
vanderguru said:
Thanks for the info. I did already try to wrok with the vol- button but it just keeps showing the ASUS and android logos and doesn't start twrp. I've succeeded to install the system thanks to the following site: (I c'an't post it cuz I'm not here long enough) however now I'm again not getting into twrp.
Click to expand...
Click to collapse
If you haven't unlocked your bootloader then you can't flash TWRP. You need to unlock bootloader. I have the 551ML so can't help here. Try the search function and read...
Try to erase your cache partition in fastboot with the command "fastboot erase cache", this might get you booting back into Android but since you've been playing around without doing the necessary reading, no guarantees...
To get to recovery, stock or custom, you must go through fastboot or bootloader mode. You need to use the volume key until it says recovery then hit power key. It will reboot the phone and most probably show you a droid on its back with "Error" above it (if it's still stock). Hold down power and press volume up to enter recovery.
ultramag69 said:
If you haven't unlocked your bootloader then you can't flash TWRP. You need to unlock bootloader. I have the 551ML so can't help here. Try the search function and read...
Try to erase your cache partition in fastboot with the command "fastboot erase cache", this might get you booting back into Android but since you've been playing around without doing the necessary reading, no guarantees...
To get to recovery, stock or custom, you must go through fastboot or bootloader mode. You need to use the volume key until it says recovery then hit power key. It will reboot the phone and most probably show you a droid on its back with "Error" above it (if it's still stock). Hold down power and press volume up to enter recovery.
Click to expand...
Click to collapse
I did qutite some experimenting today. What I'm currently ended up with is:
1) I can boot into the system.
2) I can't boot into the recovery of the Phone
3) I can boot the StockRecovery via fastboot however I can't boot TWRP by any procedure (Although I was able to do so during my experimenting. I don't understand why it sometimes works and sometimes doesn't)
4) My Phone is Rooted (at least it says so)
5) I have run the Unlock.Zip via TWRP when I had TWRP flashed however now I'm again at a point where I can't start TWRP at all.
I find this very confusing and I can't see any pattern to it. For now I'm OK with having a more or less functional phone but I'd like it to be more reliable and predictable in behaviour.
First of all you can't boot directly to recovery the way you are thinking. Booting into fastboot (actually called the bootloader) then selecting recovery is the normal way. You can't have 2 recoveries on your phone. So you probably did the tethered version of TWRP the first time. I don't have the link handy but you need to get the official TWRP and use fastboot to install.
Sent from my ASUS_Z00A using Tapatalk
You HAVEN'T UNLOCKED YOUR BOOTLOADER...
No recovery or custom rom will flash successfully... It will say it will, but you will either go into bootloop or just get stuck at ASUS logo...
Nothing will stick until the bootloader is unlocked, if you use tethered TWRP and flash a custom rom you will softbrick your phone until you flash a stock rom back on.
If you go ahead and flash TWRP onto your phone using fastboot then you will have NO recovery on your phone.
You have been warned...
ultramag69 said:
You HAVEN'T UNLOCKED YOUR BOOTLOADER...
No recovery or custom rom will flash successfully... It will say it will, but you will either go into bootloop or just get stuck at ASUS logo...
Nothing will stick until the bootloader is unlocked, if you use tethered TWRP and flash a custom rom you will softbrick your phone until you flash a stock rom back on.
If you go ahead and flash TWRP onto your phone using fastboot then you will have NO recovery on your phone.
You have been warned...
Click to expand...
Click to collapse
Well I disagree and I think you are wrong . I strongly assume that I have TWRP installed as I'm able to boot into it without having the phone connected to the computer.
Consequently I HAVE unlocked my bootloader and I DO HAVE a recovery on my phone. And of course I'm not able to install a custom rom seing that there aren't any for my model yet.
I think however that I've (for now) [SOLVED] my problem and we're drifting away from the original topic. Thanks for your quick help :highfive:

TWRP - What am I doing wrong?

Hey guys and gals,
Silly question.
For a few months now, I've had TWRP 3.1.0 RC2 installed and no matter what I do, I absolutely cannot reboot into recovery. If I choose reboot to recovery while the phone is running, it results in a ramdump and eventually boots to system. If I reboot into the bootloader and choose to boot into recovery mode from there, it just boots to system. It's incredibly annoying. Literally the only time I can get into recovery is when I connect my phone to a computer and fastboot boot into a temporary TWRP Img and install TWRP again. Once I boot into system, I can never boot into recovery again. This is extremely inconvenient on the go, like right now, because I want to flash V4A before I start playing music from my Bluetooth speaker. Guess I'll just listen to low quality music :'(
What am I doing wrong? This is stupid.
Alcolawl said:
Hey guys and gals,
Silly question.
For a few months now, I've had TWRP 3.1.0 RC2 installed and no matter what I do, I absolutely cannot reboot into recovery. If I choose reboot to recovery while the phone is running, it results in a ramdump and eventually boots to system. If I reboot into the bootloader and choose to boot into recovery mode from there, it just boots to system. It's incredibly annoying. Literally the only time I can get into recovery is when I connect my phone to a computer and fastboot boot into a temporary TWRP Img and install TWRP again. Once I boot into system, I can never boot into recovery again. This is extremely inconvenient on the go, like right now, because I want to flash V4A before I start playing music from my Bluetooth speaker. Guess I'll just listen to low quality music :'(
What am I doing wrong? This is stupid.
Click to expand...
Click to collapse
I had the same problem, then I got a twrp boot loop, ended up having to boot into slot b and reflash stock img through adb, beware...
I was JUST about to post this! Exact same problem to the tee (except using RC1)! Hopefully someone smarter can chime in lol
NYYFan325 said:
I was JUST about to post this! Exact same problem to the tee (except using RC1)! Hopefully someone smarter can chime in lol
Click to expand...
Click to collapse
I was on RC1 also
Anyone got some insight to this? Can't be that uncommon of a problem...
Try starting the process again.
Boot to bootloader
Fastboot boot 3.0.2 rc1
In twrp flash 3.1.0 r 2
Reboot recovery and check if it works
noidea24 said:
Try starting the process again.
Boot to bootloader
Fastboot boot 3.0.2 rc1
In twrp flash 3.1.0 r 2
Reboot recovery and check if it works
Click to expand...
Click to collapse
I never had TWRP stick unless I added another step to your instructions --boot completely into the rom once, go back into the bootloader, open temp TWRP and flash the TWRP zip again. If I didn't do this my recovery would always revert to stock but, strangely, even though I was running a custom rom the combination of the custom rom and stock recovery never bootlooped my phone and I was able to boot from the stock recovery to the custom rom with no problems. The only reason not being able to boot into TWRP was even an issue was that you can't flash any zips in recovery without it. Otherwise the phone ran so perfectly I didn't even realize at first that TWRP wasn't still the installed recovery.
Get the stock boot.img (this will remove root/kernel/twrp)
Boot into the bootloader
Fastboot flash boot boot.img
Fastboot --set-active=a or b (switch to the inactive slot)
Fastboot reboot bootloader
Fastboot flash boot boot.img
Fastboot --set-active=a or b (reload previous slot)
Fastboot reboot bootloader
Fastboot BOOT twrp.img
Flash TWRP in twrp..
If you can do that I would be interested in your results.
Also pointing out flashing rooms and certain zips here in the forums WILL revert you back to a stock recovery. Just my last bit of helpful information, hope someone gets it figured out, flashing is already a chore for those of us who like to experiment.
pcriz said:
Get the stock boot.img (this will remove root/kernel/twrp)
Boot into the bootloader
Fastboot flash boot boot.img
Fastboot --set-active=a or b (switch to the inactive slot)
Fastboot reboot bootloader
Fastboot flash boot boot.img
Fastboot --set-active=a or b (reload previous slot)
Fastboot reboot bootloader
Fastboot BOOT twrp.img
Flash TWRP in twrp..
If you can do that I would be interested in your results.
Click to expand...
Click to collapse
I was able to boot into recovery after doing this. Got a bootloop booting into system though, but flashing the ROM (and TWRP) fixed it.
Hello,
Try booting to TWRP 3.0.2 RC1 then flash TWRP 3.0.2 RC1 + SR1-SU v2.82SR1 + SU Pixel Fix (from Chains beta thread) one right after the other in the same TWRP session then reboot. Should fix your issue, give you recovery+root without ram dump.
Cheers
Everytime you flash a rom you need to flash twrp before rebooting or you'll lose twrp recovery.
Unfortunately I've had to get my Pixel XL replaced due to a defect and received a Verizon edition XL running 7.1.1. This is what I get for buying it from Best Buy Therefore I cannot unlock the bootloader and this problem no longer applies to me.
I'll keep this thread open for a bit in case it's useful for anyone else. I'll just sit here in all of my Stock-ness.
I couldn't get this to work. Tried flashing stock boot.img, then booting off of the TWRP images but I keep getting TWRP boot loop. Any suggestions? Tried flashing the entire stock image as well and no dice...

Semi-bricked XA1, possible recovery?

So my phone has been lagging a whole lot using the stock rom and I have decided that I'll try a custom rom to see if that changes anything. So I came here and saw this forum:
"https://forum.xda-developers.com/xa1/development/half-gsi-oreo-8-1-t3902259"
I thought I'll try and so I unlocked my bootloader, only to have my phone be reset (not a problem, everything was backed up). It also boots with a warning "Device unlocked and can't be trusted".
Then I went on to download TWRP using this link in that post: "https://mega.nz/#!FQFXCYSY!DgxQRkaY1Eqq3B0fZLEQBNzUs0Zj80L6IzSHxdorQ3A" which is the TWRP 3.3.0.0 V2 IS FOR ALL USERS.
I didn't want to flash in the event it was the wrong recovery so I tried booting into it, fastboot boot recovery.img
It flashed, everything was ok and now the phone doesn't boot. It stayed in a boot loop. I went ahead and flashed recovery this time, no luck. Downloaded a recovery.img from another website and it didn't allow me to boot to android or recovery.
Is there a way to save my phone, I can't get another phone until August due to contract. It can still boot to fastboot and gets stuck when trying to boot to android. It being able to boot to fastboot makes me think theres a chance to flash a stock rom or any custom recovery and rom to get the phone working again. Any help? Thanks!
Darth343 said:
So my phone has been lagging a whole lot using the stock rom and I have decided that I'll try a custom rom to see if that changes anything. So I came here and saw this forum:
"https://forum.xda-developers.com/xa1/development/half-gsi-oreo-8-1-t3902259"
I thought I'll try and so I unlocked my bootloader, only to have my phone be reset (not a problem, everything was backed up). It also boots with a warning "Device unlocked and can't be trusted".
Then I went on to download TWRP using this link in that post: "https://mega.nz/#!FQFXCYSY!DgxQRkaY1Eqq3B0fZLEQBNzUs0Zj80L6IzSHxdorQ3A" which is the TWRP 3.3.0.0 V2 IS FOR ALL USERS.
I didn't want to flash in the event it was the wrong recovery so I tried booting into it, fastboot boot recovery.img
It flashed, everything was ok and now the phone doesn't boot. It stayed in a boot loop. I went ahead and flashed recovery this time, no luck. Downloaded a recovery.img from another website and it didn't allow me to boot to android or recovery.
Is there a way to save my phone, I can't get another phone until August due to contract. It can still boot to fastboot and gets stuck when trying to boot to android. It being able to boot to fastboot makes me think theres a chance to flash a stock rom or any custom recovery and rom to get the phone working again. Any help? Thanks!
Click to expand...
Click to collapse
OK use the boot.img and recovery.img made by @janjan HERE. Under the heading ¨Downloads¨ see ¨Xperia XA1¨ and download the KERNEL + RECOVERY the boot.img and recovery.img are compatible with the G3121-G3112-G3125-G3116-G3123 devices on the applicable firmware.
Flash BOTH using fastboot. The boot.img is patched to allow TWRP to boot which it will never do using the stock boot.
If you wish to go back to stock then simply use FlashTool to flash the stock fotakernel.sin and boot.sin contained in the firmware for your device.
Does it works becouse I boot my g3116 from flashtool camand was
Fastboot boot boot.img and then also it's stuck into bootloader

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