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My trusty old nexus one is stuck in the boot animation. It's not rooted, in fact when the power button failed and I was going to put a custom rom on it that allowed for unlocking via the trackball adb oem unlock returned an error.
I assume it doesn't get very far in the sequence or isn't set up for developer mode since adb never sees it, and find the boot loader screen impossible to work with without a power button.
Is there anything I'm missing to recover the phone before I sell it for parts?
Thanks in advance,
thynk
Its fastboot OEM not adb but that does not matter since you can't do it anyways.
Use/try the passing.zip method to restore/downgrade and root. Or just fix the power button and unlocked the bootloader.
albundy2010 said:
Its fastboot OEM not adb but that does not matter since you can't do it anyways.
Use/try the passing.zip method to restore/downgrade and root. Or just fix the power button and unlocked the bootloader.
Click to expand...
Click to collapse
Great idea, can you link me to that process? I'm not seeming to find it.
Thanks and thanks again in advance.
Thynk
In the wiki.
Solved!
albundy2010 said:
In the wiki.
Click to expand...
Click to collapse
Many thanks! That did it.
Hey everyone I'm looking here as my last resort before sending my phone back to Motorola.
Bought a Nexus 6 from motorola uk which was delivered yesterday, switched phone on and all the Google apps on the phone updated, then had a notification OTA to download and install android 5.1 which I did, towards the end of the install process I had an error with the green android and a red exclamation mark.
I powered the device off with the power button and it turned back on and ever since it says "Android is starting" "Optimizing app 1 of 125" once it goes through all the apps it gets to the android boot screen then just goes back to the "Android is starting" "Optimizing app 1 of 125" over and over and over. (Infinite bootloop)
Pointers: The phone is not unlocked or rooted as I'm a noob its just fresh out the box, also I never opened/unlocked the developer options.
I have tried various recovery mode fixes, wiping cache and wiping all data and then rebooting the device with no luck.
Is there anyway I can hook my N6 up to my computer and fix this with a tool kit etc? I'm willing to try but I'd need basic instructions and reassurance it wouldn't muck up my warranty if it didn't work as my only other option is to exchange for a new device.
Any help, advice etc would be hugely appreciated. Thanks
Markh2001 said:
Hey everyone I'm looking here as my last resort before sending my phone back to Motorola.
Bought a Nexus 6 from motorola uk which was delivered yesterday, switched phone on and all the Google apps on the phone updated, then had a notification OTA to download and install android 5.1 which I did, towards the end of the install process I had an error with the green android and a red exclamation mark.
I powered the device off with the power button and it turned back on and ever since it says "Android is starting" "Optimizing app 1 of 125" once it goes through all the apps it gets to the android boot screen then just goes back to the "Android is starting" "Optimizing app 1 of 125" over and over and over. (Infinite bootloop)
Pointers: The phone is not unlocked or rooted as I'm a noob its just fresh out the box, also I never opened/unlocked the developer options.
I have tried various recovery mode fixes, wiping cache and wiping all data and then rebooting the device with no luck.
Is there anyway I can hook my N6 up to my computer and fix this with a tool kit etc? I'm willing to try but I'd need basic instructions and reassurance it wouldn't muck up my warranty if it didn't work as my only other option is to exchange for a new device.
Any help, advice etc would be hugely appreciated. Thanks
Click to expand...
Click to collapse
Read the guide on how to fastboot flash a factory image. No toolkit necessary.
Would you mind posting a link to a guide? I forgot to add that I don't want my phone to become rooted by trying to fix this issue, I want to keep it stock like it was, also does not have developer options enabled stop me from going further.
Sorry for the questions I'm a noob to this and quite anxious.
AndroidSlave said:
Read the guide on how to fastboot flash a factory image. No toolkit necessary.
Click to expand...
Click to collapse
Would you mind posting a link to a guide? I forgot to add that I don't want my phone to become rooted by trying to fix this issue, I want to keep it stock like it was, also does not have developer options enabled stop me from going further.
Sorry for the questions I'm a noob to this and quite anxious.
Can anyone still please help! I'm a noob and so need instructions on what to do! Please!
Markh2001 said:
Can anyone still please help! I'm a noob and so need instructions on what to do! Please!
Click to expand...
Click to collapse
If you connect the phone to the pc is it recognised in bootloader mode? Do you have adb installed onyour pc?
gee2012 said:
If you connect the phone to the pc is it recognised in bootloader mode? Do you have adb installed onyour pc?
Click to expand...
Click to collapse
All foreign language to me what your saying, trying my best to self learn right now. I'm downloading the adroid SDK and extracting the files, really want to sort this myself. Any pointers to getting into bootloader mode? And adb on the PC?
Markh2001 said:
All foreign language to me what your saying, trying my best to self learn right now. I'm downloading the adroid SDK and extracting the files, really want to sort this myself. Any pointers to getting into bootloader mode? And adb on the PC?
Click to expand...
Click to collapse
Look here http://forum.xda-developers.com/showthread.php?t=2588979 for easy adb installation. Read this too http://forum.xda-developers.com/nexus-6/general/how-to-nexus-6-one-beginners-guide-t2948481.
To get into bootloader mode power down the device and after that press volume down + power. Here`s a guide to setup the sdk/adb http://www.redmondpie.com/how-to-set-up-android-adb-and-fastboot-on-windows-tutorial/.
gee2012 said:
If you connect the phone to the pc is it recognised in bootloader mode? Do you have adb installed onyour pc?
Click to expand...
Click to collapse
I've made the fastboot adb folder on my PC and attached my phone whilst it was in bootloader mode, I types in the command box adb devices and there is no list of attached devices.
I presume this is because I didn't enable developer options or USB debugging?
Markh2001 said:
I've made the fastboot adb folder on my PC and attached my phone whilst it was in bootloader mode, I types in the command box adb devices and there is no list of attached devices.
I presume this is because I didn't enable developer options or USB debugging?
Click to expand...
Click to collapse
When in bootloader mode type : fastboot devices
-Edit- just read that your bootloade is still locked so i`am afraid there is nothing you can do to fix the issue as you cannot flash firmware with a locked bootloader. Best is to claim warranty because of a software issue while updating.
gee2012 said:
When in bootloader mode type : fastboot devices
-Edit- just read that your bootloade is still locked so i`am afraid there is nothing you can do to fix the issue as you cannot flash firmware with a locked bootloader. Best is to claim warranty because of a software issue while updating.
Click to expand...
Click to collapse
Sorry to be a noob but how do I do this? Is this on the PC I presume?
Markh2001 said:
Sorry to be a noob but how do I do this? Is this on the PC I presume?
Click to expand...
Click to collapse
There is nothing you can do with a locked bootloader, claim warranty/RMA
gee2012 said:
When in bootloader mode type : fastboot devices
-Edit- just read that your bootloade is still locked so i`am afraid there is nothing you can do to fix the issue as you cannot flash firmware with a locked bootloader. Best is to claim warranty because of a software issue while updating.
Click to expand...
Click to collapse
Thought this would be the case, I went into adb fastboot and typed in fastboot devices and its showing some letters and numbers next to fastboot on screen if that helps.
In the future I presume I should make sure to enable developer options first so I can get out if this mess?
Also would it be best when I get my new n6 just to sideload the latest update marsmellow by getting the factory image from the Google website? Last question can I skip from 5.0 straight to 6.0 sideloading or do I have tobdo it one at a time?
Thanks for trying to help matey
Markh2001 said:
Thought this would be the case, I went into adb fastboot and typed in fastboot devices and its showing some letters and numbers next to fastboot on screen if that helps.
In the future I presume I should make sure to enable developer options first so I can get out if this mess?
Also would it be best when I get my new n6 just to sideload the latest update marsmellow by getting the factory image from the Google website? Last question can I skip from 5.0 straight to 6.0 sideloading or do I have tobdo it one at a time?
Thanks for trying to help matey
Click to expand...
Click to collapse
Next time enable usb debugging and ENABLE OEM UNLOCK, both in developer options. You can flash the latest firmware available directly in fastboot by flashing the individual img files.
Here is a link to setup adb/platform-tools https://www.google.nl/url?sa=t&rct=...orial/&usg=AFQjCNGolazOWoMssTikMpokJ6TtwEND5A.
gee2012 said:
There is nothing you can do with a locked bootloader, claim warranty/RMA
Click to expand...
Click to collapse
This is getting very weird now as I just typed into the adb fastboot window : fastboot oem unlock and its giving me a message on my screen to click yes and unlock the bootloader?
Markh2001 said:
This is getting very weird now as I just typed into the adb fastboot window : fastboot oem unlock and its giving me a message on my screen to click yes and unlock the bootloader?
Click to expand...
Click to collapse
Well click the power button and in the next screen scroll down with the volume button to select yes and push power.
gee2012 said:
There is nothing you can do with a locked bootloader, claim warranty/RMA
Click to expand...
Click to collapse
It says this on my Nexus 6 phone screen.
Unlock bootloader?
If you unlock the bootloader, you will be able to install custom operating system on this phone.
A custom OS is not subject to the same testing as the original OS, and can cause your phone and installed applications to stop working properly.
To prevent unauthorized access to your personal data, unlocking the bootloader will also delete all personal data from your phone (a "factory data reset".)
Press the volume up/down buttons to select yes or no. Then press power button to continue.
Yes (Unlock bootloader, may void warranty)
No. ( Do not unlock bootloader and restart phone)
Markh2001 said:
It says this on my Nexus 6 phone screen.
Unlock bootloader?
If you unlock the bootloader, you will be able to install custom operating system on this phone.
A custom OS is not subject to the same testing as the original OS, and can cause your phone and installed applications to stop working properly.
To prevent unauthorized access to your personal data, unlocking the bootloader will also delete all personal data from your phone (a "factory data reset".)
Press the volume up/down buttons to select yes or no. Then press power button to continue.
Yes (Unlock bootloader, may void warranty)
No. ( Do not unlock bootloader and restart phone)
Click to expand...
Click to collapse
Click yes, see my above post
gee2012 said:
Click yes, see my above post
Click to expand...
Click to collapse
Okay but will I be able to relock and put it back to the way it was? Can you please stay around to help me do this step by step?! I'd appreciate it a million
Markh2001 said:
Okay but will I be able to relock and put it back to the way it was? Can you please stay around to help me do this step by step?! I'd appreciate it a million
Click to expand...
Click to collapse
Sure, but first we have to get the phone working again,
So, I just got a brand new Xiaomi Mi A2 and it went well during one week.
Last Saturday, during an OTA official update the phone asked to reboot and never came back to life. It is stuck in the android logo.
I read some info online that said it can be flashed using fastboot and MI flashing tool. I tried to do it with the official rom, but once bootloader is locked, I was unable to do so.... Found other people saying that I could flash it using test point, but it required that I opened my phone...I don't want to lose my warranty and I'm not sure if that it will work either...
Please help me.
Ecd18 said:
...Last Saturday, during an OTA official update the phone asked to reboot and never came back to life. It is stuck in the android logo.
I read some info online that said it can be flashed using fastboot and MI flashing tool. I tried to do it with the official rom, but once bootloader is locked, I was unable to do so.... Found other people saying that I could flash it using test point, but it required that I opened my phone...I don't want to lose my warranty and I'm not sure if that it will work either...Please help me.
Click to expand...
Click to collapse
Why don't you use your warranty bringing this brick to official dealer?
As you have not unlocked phone, the only 2 variants you have: official service or test point (opening back cover and so on////)
I though that the A/B partition thing was making the phone unbrickable from system update...
Aerobatic said:
Why don't you use your warranty bringing this brick to official dealer?
As you have not unlocked phone, the only 2 variants you have: official service or test point (opening back cover and so on////)
Click to expand...
Click to collapse
Once I have bought it from a Chinese website, I would have to send it back to China and wait for their decision....Which would cost me a lot (shipping it from Portugal to China) and would make me wait about one month for the problem to be solved...
If I was 100% sure that test point method would work, I would rather do that. Solving the problem in one day.
Unlock the bootloader via Fastboot the instructions are on this site then your be able to flash the stock rom.
vuittion said:
Unlock the bootloader via Fastboot the instructions are on this site then your be able to flash the stock rom.
Click to expand...
Click to collapse
I have already tried using "fastboot flashing unlock_critical", but I just obtained an error... Is that what you are talking about?
Thank you in advance.
Ecd18 said:
I have already tried using "fastboot flashing unlock_critical", but I just obtained an error... Is that what you are talking about?
Thank you in advance.
Click to expand...
Click to collapse
fastboot oem unlock
fastboot oem unlock_critical
But first you need to enable oem unlocking from developer options. I have no idea how you can do that without a working system.
onbeskarakterli said:
fastboot oem unlock
fastboot oem unlock_critical
But first you need to enable oem unlocking from developer options. I have no idea how you can do that without a working system.
Click to expand...
Click to collapse
Yeah, I have tried "fastboot oem unlock_critical" too, same result.... How the hell can Xiaomi sent out an update that bricks their phones? If I open up the phone I will lose warranty for sure, but if I don't I'm just gonna be stuck with a brick for one month...
Also, I'm not 100% sure that test point method will work out well
Gokh said:
I though that the A/B partition thing was making the phone unbrickable from system update...
Click to expand...
Click to collapse
I missed your response earlier...
Do you know about the efficiency of test point method?
Did you have oem unlock and usb debugging enabled before you did the update
vuittion said:
Did you have oem unlock and usb debugging enabled before you did the update
Click to expand...
Click to collapse
No, it was an OTA update... I did not expected that to happen...
Ecd18 said:
No, it was an OTA update... I did not expected that to happen...
Click to expand...
Click to collapse
I had listen about a button combination 4 changing slot but I haven't try it, u can try it you don't loose nothing. U have to enter at fastboot with power button and volume - button, when u r at fastboot try the combination power button with volume + button and restart. If it will work tell me to know 4 future use.
vagsvag said:
I had listen about a button combination 4 changing slot but I haven't try it, u can try it you don't loose nothing. U have to enter at fastboot with power button and volume - button, when u r at fastboot try the combination power button with volume + button and restart. If it will work tell me to know 4 future use.
Click to expand...
Click to collapse
How long should I press "volume + button and restart"? Till the android logo appears?
Thank you in advance
Ecd18 said:
How long should I press "volume + button and restart"? Till the android logo appears?
Thank you in advance
Click to expand...
Click to collapse
It is not working i tried it.
vagsvag said:
It is not working i tried it.
Click to expand...
Click to collapse
Do you think Xiaomi will release a tool to recovery these phones?
Ecd18 said:
Do you think Xiaomi will release a tool to recovery these phones?
Click to expand...
Click to collapse
I think that xiaomi has lost the game about android one. Maybe you try a factory reset via recovery, if you don't know how to do this push power button and volume + button until you go to an empty screen with a died android and u push again power button and volume + button once to enter recovery, then wipe data and factory reset.
I've the same issue here with the phone from a firend. Never had such a nightmare with another phone (just something similar with sony)
I don't understand why they making such a "running circle"... Phone won't start after a normal OTA update, now i want to reflash the stock--> bootloader unlock required --> cannot be unocked because OEM unlock was not enabled.... OMG what a stupid system...
So gentleman, i think there is no solution for that and he have to return th phone to the seller, right?
vagsvag said:
I think that xiaomi has lost the game about android one. Maybe you try a factory reset via recovery, if you don't know how to do this push power button and volume + button until you go to an empty screen with a died android and u push again power button and volume + button once to enter recovery, then wipe data and factory reset.
Click to expand...
Click to collapse
The problem is that the phone go to recovery mode...just fastboot. Which is uselees because I haven´t enable oem unlock...
Makavelli- said:
I've the same issue here with the phone from a firend. Never had such a nightmare with another phone (just something similar with sony)
I don't understand why they making such a "running circle"... Phone won't start after a normal OTA update, now i want to reflash the stock--> bootloader unlock required --> cannot be unocked because OEM unlock was not enabled.... OMG what a stupid system...
So gentleman, i think there is no solution for that and he have to return th phone to the seller, right?
Click to expand...
Click to collapse
Some local store is charging me €35 to open up the phone and recover it through test point method... I think I'm gonna do it.
Better lose my warranty and have my phone within a day, than wait a hole month for the sellers solution...
Could you try this:
https://www.htcmania.com/showthread.php?t=1472420
Disclaimer: your tablet warranty will void. Proceed with your own risk
Warning: your personal data, except on external SD card or USB drive, will be wiped during the process!
Prerequisite:
Host PC installed Samsung Smart Switch
USB C cable
Your tablet battery should be 70% or higher and you have done data backup
OEM Unlock enabled
1. About tablet
2. Software version
3. Hit Build Number few times
4. Enable USB Debugging
5. Allow your host computer
6. If you don't see OEM Unlocking, wait for 7 days or do the following trick
https://www.xda-developers.com/fix-...y-s9-samsung-galaxy-s8-samsung-galaxy-note-8/
Are you ready? Let's do it.
1. Turn your tablet off and disconnect USB cable
2. Press and hold both volume up and down buttons and connect to host computer
3. You should see factory reset screen, but this time you should see one more option. Press and hold volume up to unlock the bootloader.
4. If you see a warning screen on boot, the bootloader is unlocked.
Currently I am still finding how to make patched boot and post update later how to root.
John Wu, the developer of Magisk, already has an excellent guide for rooting the Samsung Exynos devices here: https://topjohnwu.github.io/Magisk/samsung
(Just ignore references to the Bixby button.)
Magendanz said:
John Wu, the developer of Magisk, already has an excellent guide for rooting the Samsung Exynos devices here: https://topjohnwu.github.io/Magisk/samsung
(Just ignore references to the Bixby button.)
Click to expand...
Click to collapse
The only issue is to find right boot. I couldn't find from sammobile
Magendanz said:
John Wu, the developer of Magisk, already has an excellent guide for rooting the Samsung Exynos devices here: https://topjohnwu.github.io/Magisk/samsung
(Just ignore references to the Bixby button.)
Click to expand...
Click to collapse
I followed his guide except there's no bixby button but something goes wrong.
Even KNOX tripped, I don't see root no matter how I try.
***** update *****
This time I started all over and patched AP with Magisk provided in the link and this time it worked.
Press and hold both power and volume buttons to turn it on. Release both buttons when the screen flashes briefly (it bypasses bootloader warning) and you will enter system with Magisk.
Unlocking with Linux?
This thread is the only one I see that describes how to unlock the T510. Unfortunately it requires the Samsung migration tool (why?) and it doesn't exist on Linux. I've tried hooking up Heimdall 1.4.2, but I only see the download mode screen. I can either flash something or restart. I got the PIT from the device now, but I don't see a way to unlock the bootloader. Can it be done with Linux?
Well, I decided to go verify the OEM unlock switch (which I ticked yesterday successfully), and it was unset. I just re-set it, and I have the unlock option. I don't need to have the migration tool on my computer, thankfully.
@milsabords From the Nexus Stock ROM thread -
milsabords said:
So far I have not succeeded unlocking the boot loader.
Dumb question %-( : instructions say to press Volume Up AND Volume Down. There is only ONE Vomume button wth three positions, Idle, Up and Down. How can I mash Up and Down at the same time ?
Should I do it power-on or power-off, with or without USB cable connected to my PC ?
Click to expand...
Click to collapse
MossyTC said:
There are no dumb questions! Only dumb people asking dumb ... wait that doesn't sound right ...
Anyway - the Up and Down parts of the volume button can be pressed at the same time. You can see this if you first press the Up part, and while keeping the Up part pressed you can then also press the Down part.
Do this while the device is off, USB cable not connected, then connect the USB cable.
Click to expand...
Click to collapse
milsabords said:
Thanks, it did not work, tablet in power off state would not get alive pressing either Vol keys..
Shoud I mash the power button while pressing the Volume Up, then the Volume Down buttons ?
Click to expand...
Click to collapse
MossyTC said:
It should work with only the Volume and Volume down buttons held down when the USB cable is connected from the computer.
Click to expand...
Click to collapse
milsabords said:
Did not work.
On the powered offed screen while connected to the PC I see a 100% level in the middle and yellow triangle with an USB picture at the bottom.
Pressing either Vol key does nothing.
In an earlier post you advised not to connect ???
Note: I have a 2016 Tab A, running RR Pie. Never had this kind of problem with it.
Click to expand...
Click to collapse
What I actually said earlier was that you should be holding down the volume buttons when you connect.
To be clear, and as per the OP -
DIsconnect the cable
Hold down the Volume buttons and keep them held down until after the next step
Connect the USB cable from the tablet to the computer (which should be on at this point)
You should see the factory reset screen
MossyTC said:
@milsabords From the Nexus Stock ROM thread -
/
What I actually said earlier was that you should be holding down the volume buttons when you connect.
To be clear, and as per the OP -
DIsconnect the cable
Hold down the Volume buttons and keep them held down until after the next step
Connect the USB cable from the tablet to the computer (which should be on at this point)
You should see the factory reset screen
Click to expand...
Click to collapse
I'm not sure @milsabords understands that the vol button is NOT a "rocker switch", where you press one end or the other, but TWO switches where you CAN press both ends at the same time and, while holding both ends down, you plug in the USB cable. There is no need to press the power button. A green screen will appear and then you release both buttons and follow the on screen instructions.
edit: And, BTW, you didn't have this problem with the T58x because its bootloader was never locked.
@MossyTC and @lewmur
Thanks a lot for your patience. It worked.
Tab A T510 USA
I have the variant from best buy just purchased it today. I did the date&time trick and the Unlock Bootloader option doesn't appear. I'm not sure how to proceed its a USA one does that matter?
TheGreyGoose said:
I have the variant from best buy just purchased it today. I did the date&time trick and the Unlock Bootloader option doesn't appear. I'm not sure how to proceed its a USA one does that matter?
Click to expand...
Click to collapse
i bought a T510 from best buy about a month ago and took me a whole 2 minutes to unlock and get twrp and root
i hope u didnt buy a carrier model that cant be unlocked lol
Another prerequisite, at least for me anyways, is to update the operating system on the tablet first. I bought my tablet brand new and tried to unlock the bootloader. The Smart Switch software did not recognize my tablet when I go to the unlock bootloader screen, so it wouldn't do it. I had to boot back into the OS and update to Android 9. After that, Smart Switch worked and the bootloader unlocked by following the directions in OPs post.
Hi,
I've followed instruction and got the unlocked warning on reboot. The device appears to be unlocked.
Odin failed to flash TWRP with the device showing "Only official released binaries are allowed to be flashed (BOOT)" in red.
I went into developer option, there is no longer an entry for OEM unlocking.
I then did the time trick and reboot the device. Not sure if this step matter. But after that the option showed up greyed out, saying the bootloader is already unlocked.
All good now
kindum said:
Ist ist possible to relock the the device later? For example with the ADB command that the warning will be away?
Click to expand...
Click to collapse
ADB isn't needed. You use the same procedure to relock it as you did to unlock. When you do that, the option will be to lock rather than unlock.
PC doesn't see device
When I follow this procedure, I do get to the right screen on the tablet, but my PC does not see the tablet at all.
Same thing happens with download mode. It only works if I enter download mode by ADB command.
fritz.barnes said:
When I follow this procedure, I do get to the right screen on the tablet, but my PC does not see the tablet at all.
Same thing happens with download mode. It only works if I enter download mode by ADB command.
Click to expand...
Click to collapse
sounds like a pc issue
fritz.barnes said:
When I follow this procedure, I do get to the right screen on the tablet, but my PC does not see the tablet at all.
Same thing happens with download mode. It only works if I enter download mode by ADB command.
Click to expand...
Click to collapse
When you follow what proceedure? The correct proceedure doesn't require the PC to "see" the tablet. Plugging the cable into a PC is ONLY to bring up the unlock screen on the tablet. You can't do it by plugging into a charger because the tablet won't get the correct response on the data lines. But once you get the right screen on the tablet, you can unplug the cable and still proceed with the unlock routine.
edit: I think the only reason Samsung came up with this routine is that there isn't a physical Home button to press and they want to make sure the combination of buttons won't be pushed "accidentally". They WANT it to be very difficult to unlock.
Sm-t510
elliwigy said:
i bought a T510 from best buy about a month ago and took me a whole 2 minutes to unlock and get twrp and root
i hope u didnt buy a carrier model that cant be unlocked lol
Click to expand...
Click to collapse
Iam trying to root the samsung sm-t510 2019 model. I have set the developer optie to unlock, but iam still getting the bootloader is locked....why...
Wigwam0 said:
Iam trying to root the samsung sm-t510 2019 model. I have set the developer optie to unlock, but iam still getting the bootloader is locked....why...
Click to expand...
Click to collapse
Have you actually read the instructions? The OEM enable and the bootloader lock are two entirely different things. Until the latest models, Samsung tablets didn't have locked bootloaders unless they were "carrier" models. Now, in addition to enabling OEM in developer mode, you also need to unlock the bootloader prior to using Odin. I'm not going to list the instructions again because they are already posted.
Is there a way to check if bootloader is unlocked?
winstonwlau said:
Is there a way to check if bootloader is unlocked?
Click to expand...
Click to collapse
When you turn the tablet on, you will see a warning screen telling you that the tablet is in danger if the bootloader is unlocked.
Hey guys, i have MI A2 cellphone, and after auto update programmed to three hours the smartphone show "AndroidONE" logo and then shutdown, i tried "Fastboot oem unlock", but it is my output:
PHP:
C:\Users\Lucas Daniel>fastboot oem unlock
FAILED (remote: 'Flashing Unlock is not allowed
')
Finished. Total time: 0.000s
. I'm desperate, I do not know what to try anymore, I believe I do not have unlock OEM activated, someone can help me?
Sorry for bad english, i'm from brazilian.
@LukeSkyPTBR
It's a well-known issue. One update was revoked as soon as Xiaomi has found out about phones bricking once it's installed. There's no way you can fix it by yourself except if you have ordered your phone from China (and so no warranty you have) and have experience in disassembling phones. There's a thing called test-point, do some research if you are self-assured in that area. Otherwise let your authorized service center make everything for you. It is a warranty case, either way.
sas.mar said:
@LukeSkyPTBR
It's a well-known issue. One update was revoked as soon as Xiaomi has found out about phones bricking once it's installed. There's no way you can fix it by yourself except if you have ordered your phone from China (and so no warranty you have) and have experience in disassembling phones. There's a thing called test-point, do some research if you are self-assured in that area. Otherwise let your authorized service center make everything for you. It is a warranty case, either way.
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Thanks, looks that, unfortunately, my unique solution is test-point for activate EBL Mode... I will leave the topic open for the case of i get other solutions... after 3 days, if not get, i will close and the unique solution will really test-point.
Try rebooting it a couple of times and see if it boots. Or plug it to a charger and try booting it once it starts to charge successfully. If all fails, flashing via EDL might be your only option.
Try rebooting more than couple of time. Phone is supposed to switch to the other slot of A/B where original ROM (before update) resides. When it finally boots, get developer rights, switch on ADB Debugging and OEM unlock, thus next time update soft-bricks your phone you'll be able to unlock (or even better unlock immediately after successful boot not to loose your data in future).
Isnt Fastboot OEM Unlock command deprecated ? Shouldn't you use the unlock / unlock critical command ?
Tianhe said:
Isnt Fastboot OEM Unlock command deprecated ? Shouldn't you use the unlock / unlock critical command ?
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What is it command?
Aerobatic said:
Try rebooting more than couple of time. Phone is supposed to switch to the other slot of A/B where original ROM (before update) resides. When it finally boots, get developer rights, switch on ADB Debugging and OEM unlock, thus next time update soft-bricks your phone you'll be able to unlock (or even better unlock immediately after successful boot not to loose your data in future).
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How can I do it? I leave the phone in the charger for a long time? Or do you need the power button for a long time?
I tried to press the power button for 2 minutes and nothing happened.
When i leave the smartphone on the charge, after 50 minutes, show for me 100% percent, so, i pressed power button and the screen stayed lock in "AndroidONE", nothing happened, until try again press power button.
The problem original comebacked to me
LukeSkyPTBR said:
What is it command?
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I tried, the same ploblem happenned... don't work, unfortunely... :/
LukeSkyPTBR said:
What is it command?
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fastboot flashing unlock
fastboot flashing unlock_critical
Can't you just enter fastboot mode by holding power and vol- keys with phone connected to a PC?
(Or power and vol+, can't remember)
Phil_Smith said:
fastboot flashing unlock
fastboot flashing unlock_critical
Can't you just enter fastboot mode by holding power and vol- keys with phone connected to a PC?
(Or power and vol+, can't remember)
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I can enter fastboot mode, but this is not enough to do run commands up. I would need unlock bootloader(OEM).
LukeSkyPTBR said:
I can enter fastboot mode, but this is not enough to do run commands up. I would need unlock bootloader(OEM).
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If you can enter fastboot then you can go to EDL mode by typing 'fastboot reboot edl' and then use QPST to flash the latest stock rom.
LukeSkyPTBR said:
I can enter fastboot mode, but this is not enough to do run commands up. I would need unlock bootloader(OEM).
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Do as tabun1994 said.
This will hopefully get the system up again.
The commands I wrote would unlock the bootloader. What else could I have meant?
If you succeeded with tabun's method, then you probably would only need to enable "USB debugging" and "OEM unlocking" in the ROM's developer options (which you'll enable by hitting "build number" in settings like 10 times or so).
Then you would connect the device and accept the 'trust this device' warning.
After booting to fastboot now, the commands I wrote should work and unlock the bootloader (if you even want that when your system is running again).
tabun1994 said:
If you can enter fastboot then you can go to EDL mode by typing 'fastboot reboot edl' and then use QPST to flash the latest stock rom.
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This command needs OEM Unlock :/
this is my output: fastboot: usage: unknown reboot target edl
The test point method is actually easy , you have to dissasemble the display , easy procedure , remove the battery and short the two test points with tweezerz or something ,and in the meantime you plug the usb cable into the computer. It should install the Qusb_Hub drivers , and with miFlash you should be able to reflash the firmware . I bought a phone that was in this state and fixed it using these steps.
No more solutions, I will do the test point method, thanks to everyone who tried to help otherwise.
LukeSkyPTBR said:
This command needs OEM Unlock :/
this is my output: fastboot: usage: unknown reboot target edl
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No it doesn't, i have tried this method on locked bootloader, go to this link - https://forum.xda-developers.com/an...e-how-to-reboot-to-edl-fastboot-t3394292/amp/
And download the fastboot_edl.7z , your phone will be in edl mode, I think you don't have the proper platform files which has caused the problem.
tabun1994 said:
No it doesn't, i have tried this method on locked bootloader, go to this link - https://forum.xda-developers.com/an...e-how-to-reboot-to-edl-fastboot-t3394292/amp/
And download the fastboot_edl.7z , your phone will be in edl mode, I think you don't have the proper platform files which has caused the problem.
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Okays, thanks for this solution, i will get the smartphone tomorrow, if the technical assistance not resolved my problem, i will try. Thanks very much!
LukeSkyPTBR said:
Okays, thanks for this solution, i will get the smartphone tomorrow, if the technical assistance not resolved my problem, i will try. Thanks very much!
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I execute bat archive but nothing happens in Mi A2 .-
tabun1994 said:
No it doesn't, i have tried this method on locked bootloader, go to this link - https://forum.xda-developers.com/an...e-how-to-reboot-to-edl-fastboot-t3394292/amp/
And download the fastboot_edl.7z , your phone will be in edl mode, I think you don't have the proper platform files which has caused the problem.
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What is your smartphone?