Moto Z: can't boot and can't flash new rom - Android Software/Hacking General [Developers Only]

Hello everyone,
first thank you all for this great forum! I solved many problems with your help, but now I have the first time a problem I must create a new thread.
I have a Moto Z which won't start any more. It boots to the Motorola Logo and does nothing. I can enter the fastboot menu, but can not flash anything because it was all original (Phone of my dad).
Now I tried to unlock the bootloader to flash twrp and lineageOS but it is not possible to unlock the bootloader.
I always get the info, Check 'Allow OEM Unlock' in Android Settings > Developer
Now the question is: Is there any way to "fix" this problem?

Related

[Q] ColorOS and installing a custom room

Hello everyone, I was in China recently, and bought my OPO there. Therefore, it came with colorOS.
I wanted to change it to the rom to SlimSaber. Unfortunately, I've been unable to do so.
To unlock the bootloader I'm using this set of instructions:
[GUIDE] OnePlus One - How to Unlock Bootloader, Install Custom Recovery and Root - http://forum.xda-developers.com/showthread.php?t=2788632
I think my problem is while unlocking the bootloader. I get into fastboot mode, and using the android-sdk devices I'm able to get the serial number of the phone.
But, when I run the fastboot OEM unlock, nothing happens. Everything should be erased, right? Well, that doesn't happen. After that, I enable the USB debugging, but after, when I'm supposed to disable the 'Updater recovery with system updates' I simply don't see that option.
Can anyone help me? Do you need any more info?
Tanks in advance;
Qskara said:
Hello everyone, I was in China recently, and bought my OPO there. Therefore, it came with colorOS.
I wanted to change it to the rom to SlimSaber. Unfortunately, I've been unable to do so.
To unlock the bootloader I'm using this set of instructions:
[GUIDE] OnePlus One - How to Unlock Bootloader, Install Custom Recovery and Root - http://forum.xda-developers.com/showthread.php?t=2788632
I think my problem is while unlocking the bootloader. I get into fastboot mode, and using the android-sdk devices I'm able to get the serial number of the phone.
But, when I run the fastboot OEM unlock, nothing happens. Everything should be erased, right? Well, that doesn't happen. After that, I enable the USB debugging, but after, when I'm supposed to disable the 'Updater recovery with system updates' I simply don't see that option.
Can anyone help me? Do you need any more info?
Tanks in advance;
Click to expand...
Click to collapse
Issue this command:
Code:
fastboot oem device-info
What does it return?
Transmitted via Bacon

[HELP PLEAS ] my device has no OS and recovery [android One 2nd gen]

is there anyone can help me with the issue of my phone :crying: . it has no OS and recovery. when i boot it up into system or in recovery it will go automatically on its bootloader. i tried to unlock the bootloader using adb command but it says its not allowed. i think it is because of "oem unlocking" in the developers option is uncheck. i cant check it again because its not booting into system. my device is Android One 2nd Generation.
thanks in advance.

Have I accomplished the first hardbricked pixel? :D

Hello guys. Long story short.
I managed to lock bootloader with a custom kernel by accident
So I couldn't unlock bootloader again because it wouldn't boot up to the system and any other solution wouldn't work because it required unlocked bootloader.
did fastboot continue and managed to boot into the system to enable unlock bootloader again from settings
fixed it.
Would be nice to have it in the main guide in a section: If you relocked bootloader with custom kernel...
sanogueralorenzo said:
Hello guys. Long story short.
I managed to lock bootloader with a custom kernel by accident
So I couldn't unlock bootloader again because it wouldn't boot up to the system and any other solution wouldn't work because it required unlocked bootloader.
did fastboot continue and managed to boot into the system to enable unlock bootloader again from settings
fixed it.
Would be nice to have it in the main guide in a section: If you relocked bootloader with custom kernel...
Click to expand...
Click to collapse
It is actually a sticky in the general forum http://forum.xda-developers.com/pixel/how-to/psa-read-relocking-bootloader-t3494614
clockcycle said:
It is actually a sticky in the general forum http://forum.xda-developers.com/pixel/how-to/psa-read-relocking-bootloader-t3494614
Click to expand...
Click to collapse
I don't think anyone would relock after reading that, but my point is that if you are in a google play pixel or xl there is still an easy solution but hard to find out there.
https://www.reddit.com/r/GooglePixel/comments/5cbc9m/bricked_pixel_xl/
If you managed to relock with a custom kernel for ex. you will be stuck in the bootloader since you can no longer do oem unlock (need to enable it from developer settings but your device won't boot ).
If this is your case you can just do fastboot continue to start the OS, enable dev settings and enable OEM unlock from there.

[Completed] Moto G 3rd Gen bricked or not bricked???

Hi,
My phone went into a boot loop.
I can access the fastboot menu but the device is locked, I obviously now cannot enter developer options to unlock it
When means I can't unlock the bootloader, and without unlocking the bootloader I can't reflash the device. Bit of a loop of death
Any suggestions or is it a door wedge?
JOEBOUK said:
Hi,
My phone went into a boot loop.
I can access the fastboot menu but the device is locked, I obviously now cannot enter developer options to unlock it
When means I can't unlock the bootloader, and without unlocking the bootloader I can't reflash the device. Bit of a loop of death
Any suggestions or is it a door wedge?
Click to expand...
Click to collapse
Hello and welcome to XDA-developers!
You can follow this guide to flash stock firmware through fastboot. If you have any doudts just report!

Question Lenovo Phab plus PB1-770M won't go into bootloader

Hi All,
I apologize if this is the wrong forum, or if this question has been asked elsewhere. I think my phablet no longer has a dedicated forum. I have a Phab Plus, PB1-770M that I'm trying to unlock the bootloader on. but I can't seem to get into bootloader mode. I can connect to the device with ADB, and I can run adb reboot recovery without issues, but when I try to adb reboot bootloader, it reboots and just hangs at the lenovo splash screen.
Is there anything I need to do first to get into bootloader? Is there any other way to unlock the bootloader?
I'm trying to put a more recent version of LineageOS on it, and I need to get the bootloader unlocked.
Thanks for any help,
Ivan
iblackford said:
Hi All,
I apologize if this is the wrong forum, or if this question has been asked elsewhere. I think my phablet no longer has a dedicated forum. I have a Phab Plus, PB1-770M that I'm trying to unlock the bootloader on. but I can't seem to get into bootloader mode. I can connect to the device with ADB, and I can run adb reboot recovery without issues, but when I try to adb reboot bootloader, it reboots and just hangs at the lenovo splash screen.
Is there anything I need to do first to get into bootloader? Is there any other way to unlock the bootloader?
I'm trying to put a more recent version of LineageOS on it, and I need to get the bootloader unlocked.
Thanks for any help,
Ivan
Click to expand...
Click to collapse
The bootloader mode doesn't actually have an interface, it's just a boot logo.
Use a computer and run "fastboot oem unlock", then flash a recovery to flash my ROMs.

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