ive ran into a big problem. i had my OP2 rooted and loaded with CM12. Recently i wanted to revert back to stock to receive all the updates for the phone and in the process of reversing everything, i've managed to lose everything as i was expecting when i was initially going to. Now the bootloader will not unlock with using "fastboot oem unlock". The phone restarts out of fastboot to the 1+ logo then black screen or just sits in a constant boot loop.
Any and all help will be greatly appreciated.
It's sad no one answered your post u know I'm going thru the same problem
Done everything like enable OEM unlock and USB Debugging in developer settings?
Related
Hi All,
I tried to complete a manual update of the 4.3 OTA on my Nexus 4 this evening, however unfortunately it didn't work and my phone would not boot past the 'Google' screen. After wiping the cache, and still having the issue, I decided to do a factory data wipe/restore. However the problem still persisted.
With this, I thought the only way past this was to install the factory image. I installed the 4.3 factory image just fine (after going through the various steps, including unlocking the bootloader) and it was up and running for a while installing apps. However, with this, the device had a black/blank screen for a fair few minutes and after leaving it I thought I might has well reboot. Unfortunately, this time is did not boot again.
So; off to do the same previous steps again.... fastboot oem unlock (as I relocked the device previously), load bootloader, etc, etc. Got to the system update, and it passed an error saying that fastboot is not available on a locked device. Strange as I had unlocked it, but there is was on the menu "LOCK STATE - locked"....
I am now at the stage where I can't actually keep my phone unlocked. I can complete the command fastboot oem unlock, but once I complete fastboot reboot-bootloader, the device is stating it is locked again. - This is where I need some help, PLEASE.
Sorry for the long post, but wanted to describe the situation. If you need further info from me, just let me know. I'm hoping someone far wiser than I am can help me resolve this issue...
Any help on this? - It would be much appreciated.
I too have the same problem with my phone
but my phone is 4.2.2. rooted and wouldn't load past the 'google' boot screen
I can still go into clockwork recovery mode and I wiped cache, did factory reset and I can't even access my phone through the computer
Whenever I try to unlock the bootloader of my Nexus 7. I will get to the screen that asks do I really want to unlock, I select yes. At the top of the bootloader screen it just sits and says "Unlocking now...." from there It will not reboot into the bootloader and whenever I do get it powered down and back into the bootloader it is still locked. I have also tried fastboot and various toolkits to automatically unlock and flash back to factory.
In the end I am trying to get in back to original state. I have fastboot.exe and the image file. At the moment trying to boot the device it will not get past the first "Google" startup screen. Any help would be appreciated. I am fairly new at this and have been spending hours of time trying to get my Nexus 7 to work again.
well my nexus 7 was rooted for a long time and it was always a good tablet but one day i played around with it after an update i didn't tipe fastboot oem unlock but fastboot oem lock so i locked my bootloader by accident and with not even knowing that i did this mistake
but without a stock recovery.img, no stock system pretty much nothing stock but with twrp recovery and paranoid android on it, when i tryed to go to recovery with no error but it couldn't mount enything
when with the sdk tools i tryed to format everything and that even worked
then i looked at my bootloader that it was locked so i tryed to unlock it with no success, and pretty much the other 20 times :silly:, and i even tryed tools like N-Cry, well still (it went fine but going on with a black screen and bootloader still saying locked maybe because no system is there so no ADB mode to go in) or (saying unlocking... in the upper left corner of the bootloader and doing nothing else)
so my question is if there is a way to fix it
Okay, so there is no screen protector or anything. Not rooted or unlocked or tampered in any way. I've had the phone for 26 hours and then the following happened:
EDIT: YouTube video added https://youtu.be/yAVmTz7MQbQ
I pulled the phone out of my pocket to unlock it. I see the lock screen and put in my pin (yes, I see the actual screen and stuff on it. Let me make that clear.) after I enter my pin successfully the screen locks itself. I contacted Google support and they said to factory reset it. I did the full factory data reset in the recovery mode (again, the screen works. I can see everything to do a FDR and I can see the boot animation) and it starts to boot up. Once I see the "welcome" screen it instantly locks itself. I can hear the audible "latch" locking sound that it makes when you press the power button. I know the buttons are not malfunctioning because they work perfectly fine in bootloader / recovery mode to scroll up and down and select things. I've tried multiple things but nothing seems to work. The problem here is that I want to try and do a factory image but my computer will NOT recognize my Nexus 6P when in recovery mode / bootloader mode. I have all the drivers installed but since I can't access the OS and enable OEM UNLOCKING there is no way to factory flash a factory image is there? Can someone maybe help point me in the right direction? Again, I can NOT access the OS at all whatsoever.
You just need the bootloader unlocked to flash a factory image, you can't enable that from settings o.0 so I guess your down to RMA now.
The command is now "fastboot flashing unlock"
Hey downloading a tool kit from this devices tools sections. Install the latest adb / fastboot binarys and try again
Good luck !
hutzdani said:
You just need the bootloader unlocked to flash a factory image, you can't enable that from settings o.0 so I guess your down to RMA now.
The command is now "fastboot flashing unlock"
Hey downloading a tool kit from this devices tools sections. Install the latest adb / fastboot binarys and try again
Good luck !
Click to expand...
Click to collapse
Hi Hutzdani, when I try to run the command it says "remote: oem unlock is not allowed". I have the RMA in progress but 3-5 days with no phone is going to become grueling unfortunately and I want to try everything I can. :S
xandr00 said:
Hi Hutzdani, when I try to run the command it says "remote: oem unlock is not allowed". I have the RMA in progress but 3-5 days with no phone is going to become grueling unfortunately and I want to try everything I can. :S
Click to expand...
Click to collapse
Can you run fastboot format cache and format user data? Then will anything happen ?
Sounds like you need to edit the partition that holds the data change for allow OEM unlock - there's a few threads about this on XDA for the N9 and N6 as far as I can remember.
It would seem the ability to flash a fresh system.img would solve this
Wife's phone got stuck in a bootloop last night, just stayed on the moto logo. Tried wiping cache and then data from recovery. phone now boots to moto then a black screen. I can see the device in fastboot, but not in recovery. I want to unlock the phone so that I can reflash the OS either from a custom recovery or from fastboot, but since I cant fully boot, I cant get to the developer options. This phone has never been unlocked/rooted or anything.
Is there a way to unlock the bootloader without going into the developer options and enabling it?
rokenford said:
Wife's phone got stuck in a bootloop last night, just stayed on the moto logo. Tried wiping cache and then data from recovery. phone now boots to moto then a black screen. I can see the device in fastboot, but not in recovery. I want to unlock the phone so that I can reflash the OS either from a custom recovery or from fastboot, but since I cant fully boot, I cant get to the developer options. This phone has never been unlocked/rooted or anything.
Is there a way to unlock the bootloader without going into the developer options and enabling it?
Click to expand...
Click to collapse
No there is no way to unlock bootloader without allowing OEM unlock, you're gonna wanna flash the latest version of stock available for your phone. Unfortunately I'm not very familiar with the commands so maybe another user can chime in here!
rokenford said:
Is there a way to unlock the bootloader without going into the developer options and enabling it?
Click to expand...
Click to collapse
You cannot unlock BL without "allow oem unlock" enabled.
Usb debugging you can't enable with fastboot.
You can try to erase with commands:
fastboot erase userdata
fastboot erase cache
fastboot erase customize
fastboot reboot
Give it some time.
How long are you waiting for it to boot after a factory reset? This can take 30 minutes... sometimes more.
acejavelin said:
How long are you waiting for it to boot after a factory reset? This can take 30 minutes... sometimes more.
Click to expand...
Click to collapse
I've waited at least 20 mins (not really timing it.) but with the black screen (screen on, not displaying anything) after the boot screen, how can I be sure its actually doing anything?
Honestly... Locked and stock there isn't much you can do. If we had the latest firmware image, maybe, but we are a release behind with no way knowing when, or if, we will ever get the current one.
There are two likely cases here for the cause of this problem... Actually, the cause is corruption of data on the internal emmc chip, the reason behind that corruption is the issue. It is either a faulty emmc chip or a fluke from cosmic radiation, static electricity, or who knows what. Either way, there since a factory reset isn't fixing it and we don't have a current firmware image your only option is send it in to Moto or replace it.