Recovery is gone after boot unlock,twrp install attempt. - ZenFone 2 Q&A, Help & Troubleshooting

Recovery is gone after boot unlock,twrp install attempt.
I tried to instal TWRP before unlocking the bootloader, it failed so i tried uaing the official Asus unlock tool and the twrp again it still fails.
Now i cannot access recovery at all, it just reboots into fastboot. I choose recovery but dead android never shows up. Just fastboot again.
How can i flash the original recocery back?
I have tried through adb (failed) and using the microsd card (flash does not start, just reboots to fastboot) method.
Otherwise the phone works as normal.
Sent from M919V Galaxy S4 via XDA Premium HD app.

Definitely fail unlock bootloader,splashscreen should be white after unlocked bootloader.
Use unofficiall bootloader unlock under development

madman604 said:
Recovery is gone after boot unlock,twrp install attempt.
I tried to instal TWRP before unlocking the bootloader, it failed so i tried uaing the official Asus unlock tool and the twrp again it still fails.
Now i cannot access recovery at all, it just reboots into fastboot. I choose recovery but dead android never shows up. Just fastboot again.
How can i flash the original recocery back?
I have tried through adb (failed) and using the microsd card (flash does not start, just reboots to fastboot) method.
Otherwise the phone works as normal.
Sent from M919V Galaxy S4 via XDA Premium HD app.
Click to expand...
Click to collapse
After it reboots into Fastboot use your volume rocker to navigate it to Recovery. When the screen goes black, press power and Volume up and when you release volume up it will take you to stock recovery.

madman604 said:
Recovery is gone after boot unlock,twrp install attempt.
I tried to instal TWRP before unlocking the bootloader, it failed so i tried uaing the official Asus unlock tool and the twrp again it still fails.
Now i cannot access recovery at all, it just reboots into fastboot. I choose recovery but dead android never shows up. Just fastboot again.
How can i flash the original recocery back?
I have tried through adb (failed) and using the microsd card (flash does not start, just reboots to fastboot) method.
Otherwise the phone works as normal.
Sent from M919V Galaxy S4 via XDA Premium HD app.
Click to expand...
Click to collapse
Along with an unlocked bootloader you Need USB debugging turned on. Then while you're in bootloader use 'fastboot flash recovery (IMG file) ' to flash your recovery
Sent from my ASUS_Z00A using Tapatalk

Success!
i didnt have the recovery.img file
downloaded it and flashed through ADB ( after disabling my screen lock or you get "permission denied")
i can now get back into recovery.
thanks very much. been battling with this for a week.
Sent from M919V Galaxy S4 via XDA Premium HD app.

Related

Problem with fastboot

Hi
I currently unlocked my bootloader with installed cwm.Then i tryed cm10,1 but got back to stock again because of bad battery life with cm. I flashed my kdz and everythin works as usual. I even rooted it again but now i cant enter fastboot mode. Only hard reset menu and stock recovery but not fastboot. What the heck happened? I cant run freegee again because i already did it?
Sent from my LG-E975 using xda premium
EDIT:
Fastboot works again. As i can see is that flashing KDZ locking phone again and you need to root and run FreeGee again in order to get into fastboot to choose recovery again.
It works now. I run FreeGee and now it enters fastboot menu and recovery.

[Q] Stuck on Google boot Logo

I downloaded Nexus Toolkit 7.9 and ran a factory flash and unroot. Now im stuck on this Google boot screen. Iv'e tried to go into recovery nothing but boot logo. Ive tried doing almost every option. What else can I try? Help Please.
Advice not use toolkits, but that's your choice
Boot to fastboot and make sure your still unlocked, if not
fastboot oem unlock
Then wipe partitions again
fastboot erase system -w
fastboot erase boot
fastboot erase recovery
Now flash new recovery
fastboot flash recovery nameofrecovery.img
Now boot to new recovery and go to advanced
Choose adb sideload
adb sideloade romofchoice.zip
Then probably need gapps
adb sideload gapps.zip
Now rebbot to ROM
These steps are to get you up and running with a custom ROM if you want stock unroofed than from fastboot lock bootloader and flash stock ROM of choice
Sent from my Nexus 7 using XDA Premium 4 mobile app
s6lin9s said:
I downloaded Nexus Toolkit 7.9 and ran a factory flash and unroot. Now im stuck on this Google boot screen. Iv'e tried to go into recovery nothing but boot logo. Ive tried doing almost every option. What else can I try? Help Please.
Click to expand...
Click to collapse
I've had the same issue and am still having it. Your tablet must be like mine where it doesn't like the new kitkat bootloaders. No one has been able to help me so far yet either so I will watch this thread as well
you can follow the instruction in this thread. I got boot loop too. And this tool worked like a charm
http://forum.xda-developers.com/showthread.php?t=2381582

[Q] Help!!! Problem with adb sideloader

I have a Google nexus i9250. I have unlocked the phone, i root it and have installed 4.3 Jelly Bean Rom. Today i tried to update to CM11 4.4 Custom rom but i have deleted everything in the phone via custom recovery. Now the phone is empty and it doesn't open. It stucks at google logo. I rebooted the phone into stock recovery mode and i tried to install again various roms via sideloader but I CANT INSTALL ANYTHING BECAUSE it says "signature verification failed".
what can i do????
Thanks!!!!!
Try entering in bootloader (vol up+down + power) and flash with fastboot a custom recovery. After that you get your adb sideload.
The command is fastboot flash recovery ā€¢imagenamehereā€¢.img
Dowload latest TWRP and copy it on the folder where fastboot is (usually platform-tools dir).
Sent from my Galaxy Nexus using xda app-developers app

Cannot flash and boot into TWRP on my Zenfone 2

Hi,
I'm trying to flash TWRP on my Zenfone 2 Z00A but it won't work. I cannot boot to TWRP.
My device is unlocked and rooted and I can flash boot.img, droidboot.img and stock recovery.img but TWRP IMG won't work.
After flashing TWRP using command "fastboot flash recovery twrp.img" and trying to boot into it nothing happens phone restart and boot to bootloader asking me to choose "Normal boot", "Recovery mode" "Reboot bootloader" ect.. and when I select "Recovery mode" phone restart and boot again to Bootloader not TWRP.
I also tried to flash TWRP using "Rashr" same problem not booting to TWRP.
Tethered CWM is working and I was able to boot to it but not TWRP
On the other hand if I flash back stock recovery and boot to it boots just fine.
What's wrong? Any idea guys?
Thanks in advance..
So, you've unlocked the bootloader or did you skip that part?
ultramag69 said:
So, you've unlocked the bootloader or did you skip that part?
Click to expand...
Click to collapse
Yes it's unlocked.
When I flash TWRP via CMD using fastboot command it shows successful writing TWRP IMG file. Otherwise it will show permission denied if the bootloader is locked AFAIK.
The splashscreen is white which means the bootloader is unlocked. But I don't know why it's not working.
Device is CN version flashed with WW firmware.
TWRP App-based installation
I've also tried upgrading to twrp-2-8-7-2-Z00A.img from within the TWRP Manager app. It seems to download and gets to the "installing/verifying" screen, then dies after a minute or two. The phone is rooted and unlocked. But after about the 4th or 5th try, it worked.
Ok problem solved
It turns out there was a problem with the bootloader. I used the adb commands to unlock it and it was showing successful but some how it was not unlocked fully as it seems.
The splash screen turned to white after unlocking the bootloader so I thought it was unlocked. I even tried unlocking it many times and every time the adb results were showing bootloader unlocking success but it tuned out it wasn't unlocked fully.
Today I used the official bootloader unlocking App from ASUS and unlocked the bootloader. I flash TWRP again and rebooted to recovery and BAM ! it booted to TWRP
The_wolf88 said:
Ok problem solved
It turns out there was a problem with the bootloader. I used the adb commands to unlock it and it was showing successful but some how it was not unlocked fully as it seems.
The splash screen turned to white after unlocking the bootloader so I thought it was unlocked. I even tried unlocking it many times and every time the adb results were showing bootloader unlocking success but it tuned out it wasn't unlocked fully.
Today I used the official bootloader unlocking App from ASUS and unlocked the bootloader. I flash TWRP again and rebooted to recovery and BAM ! it booted to TWRP
Click to expand...
Click to collapse
Hello, I have similar problem with my Zenfone 2 Z00A. Bootloader seems to be unlocked because of white splash screen on start-up, but I cannot flash TWRP recovery via fastboot flash recovery ***.img. The process shows no problems/errors but despite that no TWRP after reboot.
Can you explain how you found out that bootloader was not unlocked fully?
lkananowicz said:
Hello, I have similar problem with my Zenfone 2 Z00A. Bootloader seems to be unlocked because of white splash screen on start-up, but I cannot flash TWRP recovery via fastboot flash recovery ***.img. The process shows no problems/errors but despite that no TWRP after reboot.
Can you explain how you found out that bootloader was not unlocked fully?
Click to expand...
Click to collapse
I don't know why but after 4-th or 5-th attempt TWRP finally loaded.
Hi, I have a similar problem with my zenfone 2 z00A. My device is not rooted. I tried to use the process described here.
Installation
Latest releases, tools and general information
groovyandroid.github.io
I tried bootloader unlock process with the app on my phone first, but after 4-5 times of use, it always came up with 'Network error'. I went with the 2nd part of unlocking bootloader to transfer TWRP imgae file. Now the phone is starting with a white splash screen and showing 4 options: Normal boot, Power off, Recovery mode and Restart bootloader. I have tried fastboot flash recovery twrp.img and fastboot boot 'twrp.img', but still can't get to TWRP recovery process.

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/

Categories

Resources