So what exactly was the issue with Android 5.1? If I understand correctly, the issue was that the "OEM unlocking" option in Developer Options would get disabled automatically in 5.1 without users choosing to do so? Was this only a problem when they already had their bootloader locked?
In STEP 4, it says:
Is this basically allowing ADB to lock and unlock your bootloader if it is enabled? What does it mean if it is disabled while the phone has an unlocked bootloader? Why would it not always be ticked? Also, mine is currently greyed out. Is that okay? Can I proceed with it like this?
Screenshot: OEM Unlocking
In STEP 5, it says:
Is this a typo? Should it say "ready to lock your bootloader"? I feel like it must be a typo, but I just wanna be sure I'm not lost, since I'm a newb.
I used "flash-all.bat" from "7.1.1 (N6F27M, Oct 2017)" from Google. Is that an appropriate way to flash the stock ROM before relocking the bootloader? My Android Version is now 7.1.1. Can I proceed with relocking the bootloader? I am doing this to return the phone from an eBay purchase, and the bootloader was locked when I received it, so I would like to relock it.
Screenshot: Android Version 7.1.1
I have already done the following:
• Flashed a stock ROM from Google (Android Version 7.1.1) using the "flash-all.bat" file.
• Factory reset the device after flashing the stock ROM, making sure not to enable any screen locks or add any accounts to the phone.
• In STEP 4, it says to make sure OEM unlock sticks. "OEM unlocking" is both enabled, and greyed out. I couldn't untick it if I wanted to.
• I don't understand STEP 5. My bootloader is unlocked, and I wish to lock it. Also, the "factory image" is the same thing as the "stock ROM" right?
What I plan to do next:
• Restart phone using the power button + volume down to boot into the bootloader. Connect it to my PC, open a command prompt in the ADB folder, and run the command:
So this command both locks the bootloader and also factory resets the phone again?
I want to see if I correctly understand why locking the bootloader has been the cause of hard bricking the Nexus 6. The original issue is that in Android 5.1, the "OEM unlocking" option would disable on its own. And this was only a problem if you locked your bootloader when there was no OS on the phone?
In STEP 4, it says:
Once you have developer options enabled, enable USB Debugging and tick the box to allow OEM unlock.
Is this basically allowing ADB to lock and unlock your bootloader if it is enabled? What does it mean if it is disabled while the phone has an unlocked bootloader? Why would it not always be ticked? Also, mine is currently greyed out. Is that okay? Can I proceed with it like this?
Screenshot: OEM Unlocking
In STEP 5, it says:
If setting has stuck, you are ready to unlock your bootloader and install the factory image using one of the ways outlined elsewhere in this forum.
Is this a typo? Should it say "ready to lock your bootloader"? I feel like it must be a typo, but I just wanna be sure I'm not lost, since I'm a newb.
I used "flash-all.bat" from "7.1.1 (N6F27M, Oct 2017)" from Google. Is that an appropriate way to flash the stock ROM before relocking the bootloader? My Android Version is now 7.1.1. Can I proceed with relocking the bootloader? I am doing this to return the phone from an eBay purchase, and the bootloader was locked when I received it, so I would like to relock it.
Screenshot: Android Version 7.1.1
I have already done the following:
• Flashed a stock ROM from Google (Android Version 7.1.1) using the "flash-all.bat" file.
• Factory reset the device after flashing the stock ROM, making sure not to enable any screen locks or add any accounts to the phone.
• In STEP 4, it says to make sure OEM unlock sticks. "OEM unlocking" is both enabled, and greyed out. I couldn't untick it if I wanted to.
• I don't understand STEP 5. My bootloader is unlocked, and I wish to lock it. Also, the "factory image" is the same thing as the "stock ROM" right?
What I plan to do next:
• Restart phone using the power button + volume down to boot into the bootloader. Connect it to my PC, open a command prompt in the ADB folder, and run the command:
Code:
fastboot oem lock
So this command both locks the bootloader and also factory resets the phone again?
I want to see if I correctly understand why locking the bootloader has been the cause of hard bricking the Nexus 6. The original issue is that in Android 5.1, the "OEM unlocking" option would disable on its own. And this was only a problem if you locked your bootloader when there was no OS on the phone?
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