ZENFONE 5 A501CG, loosing fastboot / droidboot mode. HELP ! - Android Q&A, Help & Troubleshooting

Hi everybody, I have loosing my Zenfone 5 A501CG fastboot/droidboot. Now i'm using lollipop (beta version 3.23.40.30.
If I want to go to fastboot/droidboot (by pressing power + vol up), its directly take me to user interface.
I just can go to Recovery Mode. I tried to upgrading firmware to new firmware, but its fail. It's make me crazy.
By loosing fastboot mode, its make me impossible to install fastboot.img and boot.img.
Somebody, help me. Please !!!
Asus Zenfone 5, T00J, A501CG. Lollipop beta version 3.23.40.30.
Please help me !
I'm sorry, my english is bad.

Follow these steps on youtube: http://m.youtube.com/watch?v=811PAOMuhis

Oh thankyou, I'll try it
Sent from my ASUS_T00J using XDA Free mobile app

I still can't go to fastboot.
If i go to command prompt and add command "adb reboot bootloader", it's just showed usb logo, not take me to fastboot/droidboot/bootloader.
Please help me
Sent from my ASUS_T00J using XDA Free mobile app

At prompt, can you see your device with "adb devices" command? USB Debugging is active?

Yeah i can se my device on command prompt, my usb debugging is active. But if i go to "adb reboot bootloader", it takes me to usb logo.
I can't go to bootloader/droidboot/fastboot interface, i just can go to recovery mode
Sent from my ASUS_T00J using XDA Free mobile app

sunriseman70 said:
Yeah i can se my device on command prompt, my usb debugging is active. But if i go to "adb reboot bootloader", it takes me to usb logo.
I can't go to bootloader/droidboot/fastboot interface, i just can go to recovery mode
Click to expand...
Click to collapse

Related

Home button dead - how to boot into download mode?

My Home button is no longer working - is there any way of booting into Download mode without it??
If you have root,
1) download Terminal Emulator
2) enter "su"
3) enter "reboot bootloader"
or...
from adb: "reboot bootloader" (don't really know if it does work on adb... from Terminal Emulator)
and don't ask anymore questions in this section please, it's against the rules
Easiest way will be through and, just adb reboot bootloader.
Or you can use an extended power menu if you are on a custom rom you might need to check developer options if your on aosp.
Sent from my GT-I9300 using Tapatalk 4 Beta
A jig would work too......I made one from an old usb cable and a resistor......easy
Sent from my GT-I9300 using xda app-developers app

[Q] 5.1.1 Sideload issue on Mac

I'm having trouble sideloading the new 5.1.1 OTA update through ADB. I'm completely stock on my N9 and when I use adb while the device is booted everything works fine (adb devices lists my N9 and I can issue commands to it). When I boot into recovery however adb can no longer find my device and thus can't sideload the update.
Searching around I can find a lot of threads about Windows users having driver issues but I didn't think these applied to Macs. Am I missing something? Is anyone else having trouble using a Mac to sideload the OTA update?
Thanks in advance for anyone's help!
Enable USB debugging
Shut down tablet
Press and hold power and volume up together. You will reach a menu.
Select HBOOT
Select recovery
You will see the android with exclamation mark and "no command".
Press power + volume up
You will enter recovery menu
Select adb sideload
Push update
Worked fine on my Mac!!
Is that what you are doing?!
@crispydc,
I don't know anything about Mac's but when you are in stock recovery, and are at the menu for adb sideload you can try unplugging and replugging your USB cable.
^^^ this happened to me on my work computer (windows) just do that step after you select adb sideload.
Ah! Stupid on my end. I was trying to sideload from the screen with the Android logo - I forgot to actually enter the recovery menu and select the 'Install update from ADB' option. Sorry for the noob post and thanks for your help!
What are the steps in side loading ? Obviously download file and boot into recovery and adb but what process do i need to take when using the computer ( windows 8 )
Sent from my Nexus 9 using XDA Free mobile app
JackHanAnLG said:
What are the steps in side loading ? Obviously download file and boot into recovery and adb but what process do i need to take when using the computer ( windows 8 )
Sent from my Nexus 9 using XDA Free mobile app
Click to expand...
Click to collapse
ADB reboot recovery (you'll see Andy on his back with red !)
To access recovery menu hold power and press & release volume up
Use volume key to navigate to Apply update via ADB
On your PC type in command prompt "ADB sideload " file name""
when my nexus 9 is on and fully booted my windows7 recognise that as a adb device, in recovery it can't find tablet anymore... How can i fix this issue?
zera89 said:
when my nexus 9 is on and fully booted my windows7 recognise that as a adb device, in recovery it can't find tablet anymore... How can i fix this issue?
Click to expand...
Click to collapse
Try to unplug and replug in your USB cable while in recovery.

Adb/Fastboot stuck waiting for any devices (zenfone max zc550kl)

have the issue when trying to install twrp, i use win 10, have all the drivers installed. in usb debugging mode, i checked on my device manager pc, my asus devices listed.
the problem come out when i succsess get in into fastboot mode (csc mode) by using the command adb reboot bootloader
after in csc mode i type fastboot flash recovery twrp.img
and that us the problem come out
<waiting for any device>
i already trying to restart my pc, change usb port but still have the same problem.
my devices is zenfone max zc550kl, hoping someone helped me out. thanks
Reinstall asus bootloader driver ez fix
Sent from my ASUS_Z010D using XDA-Developers mobile app

[Question] ZTE Majesty Pro

Hello,
I have a Straight Talk ZTE Majesty Pro LTE [Z799VL]. It runs Android 6.0.1. This phone occasionally installs apps and has an annoying app called AppFinder. I have tried to root this phone with KingoRoot and KingRoot. So, I need help figuring out if this thing is even rootable. I would get a more accessible phone, but I'm short on money. I know this is short on information, but I'd be willing to help in any way I can.
Any help would be greatly appreciated.
Boop.
I'm fairly certain this phone was released recently. Maybe it's just too soon.
I have this same phone and am having the same problem finding info on how to root it. Keeping a hopeful eye on this thread
Any news for ZTE Majesty PRO unlock?
My friend just brought it from USA to Europe and he want to use it in normal way
Any news?
Any news?
Zte z799vl -
I have this phone and have tried many types to root it with no luck.
same here looking for root
Root
I've tried SRS King Kingo 360root etc... And many others and nothin so far. Any luck from anyone else?? Even temp root??
ZTE majesty pro z799vl tracfone
The OP is running Android 6 but I have the Straight Talk boxed ZTE Majesty Pro and it runs 7.1.1 out of the box.
There is a thread called Universal Method with a file and instructions but my Android device is the only PC I own so I haven't given it a try. The post has a Windows and a Linux method.
ChernobylBloodwolf said:
Hello,
I have a Straight Talk ZTE Majesty Pro LTE [Z799VL]. It runs Android 6.0.1. This phone occasionally installs apps and has an annoying app called AppFinder. I have tried to root this phone with KingoRoot and KingRoot. So, I need help figuring out if this thing is even rootable. I would get a more accessible phone, but I'm short on money. I know this is short on information, but I'd be willing to help in any way I can.
Any help would be greatly appreciated.
Click to expand...
Click to collapse
Have you unlocked the bootloader?
I recently upgraded to an Android 7.1.1 ZTE Majesty™ Pro Plus LTE (Z899VL) from TracFone,, and was rather dismayed to find out that it has an unremovable Facebook app (among other rubbish that I don't want/don't use).
I've never rooted a device before, and I know that this thread's a little old, but would anyone be willing to post a very-newbie-friendly step-by-step tutorial/walkthrough for rooting this phone (assuming it's possible)?
I have Developer Options enabled, and I can easily unlock the bootloader if that's required. I just want to get rid of these useless (for me) System Apps.
Oh, also: I don't have Linux, so… if it's possible, perhaps the rooting method could work using a Windows 7 PC?
need fastboot to unlock the bootloader. to the best of my knowledge, which aint much. but i can not find access to any kind of dl mode let alone fastboot.
Kizul said:
I recently upgraded to an Android 7.1.1 ZTE Majesty™ Pro Plus LTE (Z799VL) from TracFone,, and was rather dismayed to find out that it has an unremovable Facebook app (among other rubbish that I don't want/don't use).
I've never rooted a device before, and I know that this thread's a little old, but would anyone be willing to post a very-newbie-friendly step-by-step tutorial/walkthrough for rooting this phone (assuming it's possible)?
I have Developer Options enabled, and I can easily unlock the bootloader if that's required. I just want to get rid of these useless (for me) System Apps.
Oh, also: I don't have Linux, so… if it's possible, perhaps the rooting method could work using a Windows 7 PC?
Click to expand...
Click to collapse
UNLOCKING BOOTLOADER:
Download Koush Universal adb driver from koushikdutta.com and adb setup.
Install the driver first and install adb after that.
Type n and press Enter when adb setup asks for installing drivers.
After the installation, run command prompt as administrator.
Open File explorer, and navigate to C:\adb
Please take backup of your data before proceeding further.
In C:\adb press Shift+right click and select Open Command Window here.
Enable USB debugging on your phone and connect your phone to pc using USB cable.
Type "adb devices" without quotation marks and press enter.
If it shows some device to be connected, only then proceed further.
Type "adb reboot bootloader" and press enter.
Phone will boot into fastboot mode.
Type "fastboot devices" and press enter.
If it shows some device to be connected, only then proceed further.
Type "fastboot oem unlock" and press enter.
On the phone screen, the phone will ask for confirmation to unlock bootloader.
Once fastboot shows "Success" or "Done" or something else signifying that the command was successful, type "fastboot reboot" and press enter.
Your phone will reboot normally.
Congrats, you have successfully unlocked bootloader.
ROOTING:
1. For Kingoroot:
Download and install Kingoroot for PC.
Enable USB debugging on your phone and connect your phone to PC using USB cable.
Open Kingoroot.
Connect your pc to internet.
Kingoroot will detect your phone automatically and in a few seconds the root button will come up, click it and wait until the process completes.
Your phone may reboot several times during the process.
Congrats, you have a rooted phone now.
2. For Dr Fone:
Download and install Dr Fone on your PC.
Enable USB debugging on your phone.
Open Dr Fone and select Root option.
Connect your phone to your PC with USB cable.
Dr Fone will detect your phone in a few minutes.
Click "Root" button and wait.
Congrats, you have a rooted phone now.
Augustoandro said:
UNLOCKING BOOTLOADER:
Download Koush Universal adb driver from koushikdutta.com and adb setup.
Install the driver first and install adb after that.
Type n and press Enter when adb setup asks for installing drivers.
After the installation, run command prompt as administrator.
Open File explorer, and navigate to C:\adb
Please take backup of your data before proceeding further.
In C:\adb press Shift+right click and select Open Command Window here.
Enable USB debugging on your phone and connect your phone to pc using USB cable.
Type "adb devices" without quotation marks and press enter.
If it shows some device to be connected, only then proceed further.
Type "adb reboot bootloader" and press enter.
Phone will boot into fastboot mode.
Type "fastboot devices" and press enter.
If it shows some device to be connected, only then proceed further.
Type "fastboot oem unlock" and press enter.
On the phone screen, the phone will ask for confirmation to unlock bootloader.
Once fastboot shows "Success" or "Done" or something else signifying that the command was successful, type "fastboot reboot" and press enter.
Your phone will reboot normally.
Congrats, you have successfully unlocked bootloader.
Click to expand...
Click to collapse
Well, I finally managed to get my 899VL (it's not a 799VL as I'd thought — sorry) to show up as an ADB device; it accepts commands from the ADB program… except that when I execute "adb reboot bootloader", it just reboots my phone.
The ZTE logo shows, then the TracFone logo, and then Android boots as normal. It's as though I simply used the "Restart" option on my phone itself.
Due to this, I can't use "fastboot" commands, because it doesn't seem to enter Fastboot at all.
I do have both the OEM unlocking and USB debugging options turned ON. My only guess as to what's going wrong is that it's TracFone's fault. (Alas, I have no proof…)
Is there anything else that I can do to try and unlock the bootloader? Or is this phone a lost cause?
Kizul said:
Well, I finally managed to get my 899VL (it's not a 799VL as I'd thought — sorry) to show up as an ADB device; it accepts commands from the ADB program… except that when I execute "adb reboot bootloader", it just reboots my phone.
The ZTE logo shows, then the TracFone logo, and then Android boots as normal. It's as though I simply used the "Restart" option on my phone itself.
Due to this, I can't use "fastboot" commands, because it doesn't seem to enter Fastboot at all.
I do have both the OEM unlocking and USB debugging options turned ON. My only guess as to what's going wrong is that it's TracFone's fault. (Alas, I have no proof…)
Is there anything else that I can do to try and unlock the bootloader? Or is this phone a lost cause?
Click to expand...
Click to collapse
Well, I don't know about any other method to unlock boot loader.
BTW, in case of some phones, turning on the "OEM Unlock" button in Developer Options unlocks the bootloader automatically, so maybe, just check whether your bootloader is locked or not.
Both Didn't work
Augustoandro said:
UNLOCKING BOOTLOADER:
Download Koush Universal adb driver from koushikdutta.com and adb setup.
Install the driver first and install adb after that.
Type n and press Enter when adb setup asks for installing drivers.
After the installation, run command prompt as administrator.
Open File explorer, and navigate to C:\adb
Please take backup of your data before proceeding further.
In C:\adb press Shift+right click and select Open Command Window here.
Enable USB debugging on your phone and connect your phone to pc using USB cable.
Type "adb devices" without quotation marks and press enter.
If it shows some device to be connected, only then proceed further.
Type "adb reboot bootloader" and press enter.
Phone will boot into fastboot mode.
Type "fastboot devices" and press enter.
If it shows some device to be connected, only then proceed further.
Type "fastboot oem unlock" and press enter.
On the phone screen, the phone will ask for confirmation to unlock bootloader.
Once fastboot shows "Success" or "Done" or something else signifying that the command was successful, type "fastboot reboot" and press enter.
Your phone will reboot normally.
Congrats, you have successfully unlocked bootloader.
ROOTING:
1. For Kingoroot:
Download and install Kingoroot for PC.
Enable USB debugging on your phone and connect your phone to PC using USB cable.
Open Kingoroot.
Connect your pc to internet.
Kingoroot will detect your phone automatically and in a few seconds the root button will come up, click it and wait until the process completes.
Your phone may reboot several times during the process.
Congrats, you have a rooted phone now.
2. For Dr Fone:
Download and install Dr Fone on your PC.
Enable USB debugging on your phone.
Open Dr Fone and select Root option.
Connect your phone to your PC with USB cable.
Dr Fone will detect your phone in a few minutes.
Click "Root" button and wait.
Congrats, you have a rooted phone now.
Click to expand...
Click to collapse
I tried using both the wasy for the first one the device not going to fastboot mode it just restarts for "adb reboot bootloader".
i tried KingoRoot, Dr Fone but it didn't work.
Did you unlock the ZTE Majesty Pro Z799VL with this method???
drona91 said:
I tried using both the wasy for the first one the device not going to fastboot mode it just restarts for "adb reboot bootloader".
i tried KingoRoot, Dr Fone but it didn't work.
Did you unlock the ZTE Majesty Pro Z799VL with this method???
Click to expand...
Click to collapse
No, these are general instructions which work for most phones.
Z799vl Help USB tethering

Fastboot mode disappeared in 10 seconds...How to solve

When I'm try to boot in fastboot mode the fastboot mode (volume down+power) will only display for about 10 seconds and then it will reboots itself into charging mode. doesn't matter if i use the key, or even use adb commands to get there. it will still reboot itself in short period of time.
why is this happening? i just want to unlock my bootloader thats all...
Please help me... thanks in advance....
Smart Sujoy said:
When I'm try to boot in fastboot mode the fastboot mode (volume down+power) will only display for about 10 seconds and then it will reboots itself into charging mode. doesn't matter if i use the key, or even use adb commands to get there. it will still reboot itself in short period of time.
why is this happening? i just want to unlock my bootloader thats all...
Please help me... thanks in advance....
Click to expand...
Click to collapse
Your computer is unable to detect the phone in fastboot mode. Uninstall and reinstall the fastboot drivers, the proper ones. If successfully detected it should not be rebooting.
Cheers
ArK96 said:
Your computer is unable to detect the phone in fastboot mode. Uninstall and reinstall the fastboot drivers, the proper ones. If successfully detected it should not be rebooting.
Cheers
Click to expand...
Click to collapse
I just try this...but nothing happened...
Smart Sujoy said:
I just try this...but nothing happened...
Click to expand...
Click to collapse
That ten seconds when phone is turned on in fastboot and connected to computer quickly type this command in command prompt without the quotes
" fastboot devices "​If a device with device number shows up fastboot drivers are installed correctly or else if nothing shows up fastboot drivers are not installed properly..so check them.
Smart Sujoy said:
When I'm try to boot in fastboot mode the fastboot mode (volume down+power) will only display for about 10 seconds and then it will reboots itself into charging mode. doesn't matter if i use the key, or even use adb commands to get there. it will still reboot itself in short period of time.
why is this happening? i just want to unlock my bootloader thats all...
Please help me... thanks in advance....
Click to expand...
Click to collapse
i actually watched this video, to unlock my bootloader
https://youtu.be/dDRC-J-cLlE
Smart Sujoy said:
When I'm try to boot in fastboot mode the fastboot mode (volume down+power) will only display for about 10 seconds and then it will reboots itself into charging mode. doesn't matter if i use the key, or even use adb commands to get there. it will still reboot itself in short period of time.
why is this happening? i just want to unlock my bootloader thats all...
Please help me... thanks in advance....
Click to expand...
Click to collapse
Im having this issue now on my redmi note 4x.
Do you have a solution? Thanks
Man, you need adb bootloader interface installed properly.
Open device manager, and you'll see something popping out when you connect your device to pc on fastboot mode, there you can see what's wrong. So all you need is update that wrong driver (the one that popped out once you connect your device in fastboot mode) and install redmi note 4x driver, just ignore your disappearing fastboot mode in your device, keep install it. You should have your redmi note 4x driver prepared btw, you can google it.
Good luck!
use USB2 port, do not use USB3
Smart Sujoy said:
When I'm try to boot in fastboot mode the fastboot mode (volume down+power) will only display for about 10 seconds and then it will reboots itself into charging mode. doesn't matter if i use the key, or even use adb commands to get there. it will still reboot itself in short period of time.
why is this happening? i just want to unlock my bootloader thats all...
Please help me... thanks in advance....
Click to expand...
Click to collapse
Update your redmi note 4 driver in PC through a software called driver booster.... It's free
AtheistZ said:
Update your redmi note 4 driver in PC through a software called driver booster.... It's free
Click to expand...
Click to collapse
NO ADS!!!!
and2nckiko said:
Im having this issue now on my redmi note 4x.
Do you have a solution? Thanks
Click to expand...
Click to collapse
That is because your computer does not make any connection with your phone. Are you sure that you have all drivers installed. You can install fastboot drivers with mi flash tool but before that write this command in an admin cmd - bcdedit /set TESTSIGNING OFF and reboot. Now you can now install the fastboot driver from mi flash tool and try your luck
ArK96 said:
That ten seconds when phone is turned on in fastboot and connected to computer quickly type this command in command prompt without the quotes
" fastboot devices "​If a device with device number shows up fastboot drivers are installed correctly or else if nothing shows up fastboot drivers are not installed properly..so check them.
Click to expand...
Click to collapse
Bro my bootloader is already unlocked but my phone still restarts after 10 second i did not connected to any usb still it restarts i updated magisk today and now nothing is working in my phone no call incomming and outgoing audio is fully disabled when i turn on audio in any app it crashes or freezes i tried to factory data reset my phone but nothing works plzz help me broo
Leeeop90 said:
Bro my bootloader is already unlocked but my phone still restarts after 10 second i did not connected to any usb still it restarts i updated magisk today and now nothing is working in my phone no call incomming and outgoing audio is fully disabled when i turn on audio in any app it crashes or freezes i tried to factory data reset my phone but nothing works plzz help me broo
Click to expand...
Click to collapse
My root is also lost
JustExperimentingRedmi said:
That is because your computer does not make any connection with your phone. Are you sure that you have all drivers installed. You can install fastboot drivers with mi flash tool but before that write this command in an admin cmd - bcdedit /set TESTSIGNING OFF and reboot. Now you can now install the fastboot driver from mi flash tool and try your luck
Click to expand...
Click to collapse
So drivers are needed for fastboot flashing a xiaomi phone?
Why I didn't need drivers to use fastboot with other phone manufacturers?
In these phones (oppo, op) the phone stays in fastboot mode until you exit or shut it down.
I think xiaomi did a bad move with this.
───────
EDIT: It works in debian without any additional drivers.
Fastboot recognizes the xiaomi phone with "fastboot devices" command.
So it was as you said.

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