Develop Bugs

[Q] Can't boot to recovery using buttons

Can't boot to TWRP after turning off.
From TWRP manager no problem, but I'd like to be able to boot instantly to recovery or download (fastboot).
Everyone uses the Power + Vol Down keys...and works on every video from youtube...but with me it doesn't.
Also I can't boot to fastboot any way I tried (hardware or software ways)
Any ideas???
Thanks

When you do the button method, do you let go at the lg logo then immediately press again? If so, don't let go. Just keep holding past the logo.

You can't boot also to download mode you say ? Which method you used to install recovery ?
Your G3 model ? D855 ?

Cannot enter recovery mode

Hey All,
I have recently rooted my Xperia T2 with hopes of entering the wonderful world of customization. However, I cannot enter recovery mode at all. I have exhausted Google looking for a solution prior to registering here. I have tried everything from downloading apps such as Quick Boot to connecting to PC and trying the adb command ''adb reboot recovery'' and ''adb reboot-bootloader'' and of course I have tried the obvious of turning off the phone and then powering back on while holding the power button and volume up key at the same time. Performing that action shows the phone powering on with the Sony screen followed by a black screen where the phone vibrates 3 times and will continue in this loop if I don't release the keys, If I do release them the phone just starts normally. In all cases, that is is what is happening, the phone restarts and boots normally.
I have checked that everything is OK with the rooting that I did via the app Root Checker and and checked bootloader unlocked status via the command ''*#*#7378423#*#*''.
So, there you have it and I just can't understand why I can't enter the recovery mode. My main goal for the moment is to free up some RAM by doing the Link2SD method but without getting into the recovery mode, that seems hopeless.
Hopefully someone here can advise me.
Thanks for reading and have a great day!

I can't enter recovery mode too... also already unlocked my bootloader but recovery still unacessible.
See what I did:
(DONE) - Unlocked my bootloader;
(FAIL) - Tryed to root by using KingRoot (2 differrent versions, one that I saw in a tutorial and the newer version - cause I'm using the newer T2 Ultra firmware)
(FAIL) - Tryed to install a custom recovery and as a gift, my T2 started an infinite bootloop.
(DONE) - Fix the boot loop problem...;
(FAIL) - Enter recovery mode and flash a Pre Rooted Firmware;
(DONE) - Searching how to flash a custom recovery again...
(DONE) - Installed a custom recovery (TWRP)...
Now I have another problem... wen a I try to turn It on, It only goes to recovery, and the notification led blinks red and then purple. There's anything I can do to fix It?

The very same problem i am facing now
I wanted to upgrade to higher version of lollipop but not able to get in recovery mode though i have already rooted n installed NDR utils BUT not able to get in recovery mode even via app
Any one who can help US OUT ?? !

I have same problem i can't enter to recovery mode by hold power button and volume + or volume - i try a lot of other combinaison but it doesn't work , help us thanks

I know it's too late for a reply but if u still wandering for how to flash a custom recovery first you need to install one as our Sony phones doesn't come with stock recoveries as mtk and Samsung devices have. Now go to http://forum.xda-developers.com/t2-ultra/development/t2-ultra-xzdualrecovery-qa-t2823793 for Complete tutorial on flashing and downloading a custom recovery. I have installed it with no errors

Zenphone 2 bootloop , cant access recovery mode nor fastboot nor adb

Hello Guys
After doing deep search on this forum and try several unsuccessful solutions (recover mode, fast boot...). I decide to create new thread.:angel:
Symptom : A boot loop on Android Upgrade (There are 7 updates to apply).
I think, I know the cause but every solution found on this forum didn't succeed.
I tried to access recevey mode ( Power+Up, then release up ). --> When I release Up after vibration, I don't enter into recovery mode.
I tried to access my phone through fastboot or adb but, I have following message : "Wait for device". No detection so
Here is what I have done to be in this situation :
I've rooted my phone (thanks to forum explanations) --> No Problem
Installed this bull**** app "App Master" to freeze or put bloatware into trash (recoverable)
Everything was ok, since I noticed "Asus Start Manager" needed to update but was not compatible with my device. Strange isn'it.
So I've undertaken to restore frozen and removed app from app master. It asked me to restart and then, my 7 restored app seems to involve a big mess.
And now I can't Boot. NOte that android upgrade wants to suprisingly update 7 optimisations.
My next idea is to acces directly internal storage to remove 7 apk provoking boot loop.
Do you have better idea because if I remove internal storage, wararnty will be canceled and in addition I have no guaranty I'll able to read it.:crying:
Further more I hesitate to send it to vender since my device is rooted. They will answer it's my fault, and it's true sic !
As you understand I 'm quite desperate . IF someone can help me I'd be so grateful.
Thanks everybody and sorry for my english

Can you access to bootloader?(Power+ Vol Up and release power after vibration)
Sent from my Asus Zenfone 2 using XDA Free mobile app

atahanali_57 said:
Can you access to bootloader?(Power+ Vol Up and release power after vibration)
Sent from my Asus Zenfone 2 using XDA Free mobile app
Click to expand...
Click to collapse
Unfortunatly no.
bouhhh !!

Try to see here http://forum.xda-developers.com/zenfone2/general/unbricking-research-unbricking-method-t3162848

Ok i'll try it after work this evening.
I have nothing to loose so....

can u let me know. I failed with it.

U should have been able to access the boot loader at least.
while pressing and holding the volume up button , press and hold the power button until the set vibrates.
just when u feel the vibration RELEASE THE POWER BUTTON, NOT THE VOLUME UP BUTTON, 9as u have mentioned the oppssite in the first post) then it should go to boot loader menu.

I have a similar problem with ZF2. I access recovery mode by pressing the down arrow key and then the power button but the phone just reboots into recovery mode again. No dead android logo appears as others have suggested.

Try that : http://forum.xda-developers.com/showthread.php?t=3191244

Do volume up + power, once it vibrates press volume down rapidly about 3 times. Wait for a minute or two while on the Asus screen. Sometimes it will boot into recovery or it will vibrate and stay stuck. It worked for me.

A workaround
Hello Guys !
I've posted a workaround to my problem but I don't understand why it doesn't appear. I certainly made a mistake something.
Here is what I remember:
I tried several procedure described on asus-zenfone.com I finally found a soft which unlocked my recovery mode.
But finally it was maybe the fact to connect my device with usb which unlocked It (sorry I don't remember)
Once recovery menu was available, I downloaded official rom, copied it on an sdcard and installed it.
Good news, most of bloatware were desactivable !
Now, I have a device rid of the unworthy softs with an offical ROM.

In such situations I usually disassemble the phone and disconnect the power train of a few minutes. After that it booted recovery/bootloader.

croulipette said:
Hello Guys !
I've posted a workaround to my problem but I don't understand why it doesn't appear. I certainly made a mistake something.
Here is what I remember:
I tried several procedure described on asus-zenfone.com I finally found a soft which unlocked my recovery mode.
But finally it was maybe the fact to connect my device with usb which unlocked It (sorry I don't remember)
Once recovery menu was available, I downloaded official rom, copied it on an sdcard and installed it.
Good news, most of bloatware were desactivable !
Now, I have a device rid of the unworthy softs with an offical ROM.
Click to expand...
Click to collapse
how to do that? i still cant access recovery or fastboot

my phone is stuck in robot hijau with stomach openning position sleep with exclamation mark please help me.........

atahanali_57 said:
Can you access to bootloader?(Power+ Vol Up and release power after vibration)
Sent from my Asus Zenfone 2 using XDA Free mobile app
Click to expand...
Click to collapse
I am able to access bootloader . But when i choose recovery mode, the phone enters into a boot loop.
. Here is what i have done:
1. My device was already rooted.
2. Tried to install twrp custom rom using usb adb commands
3. It showed successful. I fast booted into my device. Switched it off and entered boot mode again. then selected Recovery. But I was never able to enter into recovery (The Robot with error was not at all displaying).
4. Then i searched google and found my boot loader was locked. I unlocked bootloader using
https://dl.xda-developers.com/3/4/0....zip?key=dEgXp67KVlqwn4BL-w1kWw&ts=1505837086
5. Now my flash screen is in white background. I can enter boot loader.
6. Then again i installed twrp via adb and selected recovery mode. But when i choose recovery, the phone goes into boot loop.
Please help.. One doubt: MY Phone is ASUS ZENFONE 2 Z00AD.

Bootloop problem

Hello,
I have a problem; I recently tried to root my device running on Android 6.0 sense 7. I unlocked the bootloader and installed Twrp recovery and then flashed SuperSU zip, after that I wiped the cache and rebooted, but now it's stuck in a boot loop, I can't do anything, also I can't adb into the device. It is stuck on the HTC logo with powered by android below it. My pc recognizes the device I think because it makes the sound but when I try 'adb devices' it says list of devices attached and nothing. also fastboot can't seem to find the device. What do I do?

Have you tried restoring a backup or flashing a custom rom?

JuanArg said:
Have you tried restoring a backup or flashing a custom rom?
Click to expand...
Click to collapse
but how? its stuck in boot loop and I can't turn off the phone

Hold volume up and power button to restart phone from any hang keep holding the buttons for 5 seconds. Or use volume down + power button and same hold for 5 seconds to go to fastboot

Hey
dcf007 said:
Hello,
I have a problem; I recently tried to root my device running on Android 6.0 sense 7. I unlocked the bootloader and installed Twrp recovery and then flashed SuperSU zip, after that I wiped the cache and rebooted, but now it's stuck in a boot loop, I can't do anything, also I can't adb into the device. It is stuck on the HTC logo with powered by android below it. My pc recognizes the device I think because it makes the sound but when I try 'adb devices' it says list of devices attached and nothing. also fastboot can't seem to find the device. What do I do?
Click to expand...
Click to collapse
I also had the same issue but what I did is, I let my device to drain the battery, and then I press the Volume Down + Power and plugin the charger and it gets me to Bootloader ^_^ I don't know what your bootloader combination is but just press them before putting the charger. And oh, DO NOT REMOVE THE CHARGER UNTIL YOU ARE FINISHED FLASHING THE boot.img of your ROM.

it's fixed, flashed stock rom and recovery. Thanks guys

I also have the same problem. Can you provide a link to stock rom and recovery PLEASE. Thanks!!

[Solved] Unlocked Bootloader now having trouble

I unlocked the bootloader and installed TWRP Recovery using the OP3 Tool. However now the phone will not boot unless I press the power button a few times. When it does boot I get the "Your device is not safe message", if I boot from here I get the OnePlus logo with the "powered by android" text but then it just shuts off. If I use the volume keys to select something else, I get nothing, the fastboot mode just gets stuck on the fastboot until I turn the device off, recovery just reboots to the "Your device is not safe screen".
Any help would be wonderful

McreativeH said:
I unlocked the bootloader and installed TWRP Recovery using the OP3 Tool. However now the phone will not boot unless I press the power button a few times. When it does boot I get the "Your device is not safe message", if I boot from here I get the OnePlus logo with the "powered by android" text but then it just shuts off. If I use the volume keys to select something else, I get nothing, the fastboot mode just gets stuck on the fastboot until I turn the device off, recovery just reboots to the "Your device is not safe screen".
Any help would be wonderful
Click to expand...
Click to collapse
Did you flash anything while you were unlocking the bootloader? The message is shown when the bootloader is unlocked so that is ok. Your phone, however, should turn on by long pressing the power button. You're getting a bootloop, If I were in such a situation I'd use the fastboot mode to flash the stock firmware again to get the phone working...

mharis05 said:
Did you flash anything while you were unlocking the bootloader? The message is shown when the bootloader is unlocked so that is ok. Your phone, however, should turn on by long pressing the power button. You're getting a bootloop, If I were in such a situation I'd use the fastboot mode to flash the stock firmware again to get the phone working...
Click to expand...
Click to collapse
I managed to get it working in the end by reflashing the stock recovery image ???? thank you for the help

McreativeH said:
I managed to get it working in the end by reflashing the stock recovery image ???? thank you for the help
Click to expand...
Click to collapse
Awesome! Enjoy :good: