[Q] Nexus i9020T stuck on unlock bootloader - Nexus S Q&A, Help & Troubleshooting

I have an i9020T that is stuck in the Google boot loop. I was given this phone in this state so I am not sure how it happened. I can volume+ and power and get to fastboot. When I do a fastboot oem unlock, the screen changes on the phone to confirm I want to unlock the bootloader. I use volume+ to move to Yes then press the power button to select.
The PC terminal shows the little dots as if it is working on it. After 9 hours, the phone's screen remains on the Unlock Bootloader? screen and the PC terminal has Failed with too many links.
I have tried with the Android ADB Interface driver, the Android Bootloader Interface driver, and the Samsung drivers. I have removed the drivers and downloaded PDAnet, put the phone in fastboot mode, connected to the pc and let PDAnet install the driver (although it cannot install PDAnet on the phone). All resulting in the same outcome.
If I type fastboot devices, it returns the serial number that is displayed on the phones fastboot screen. It will not fastboot oem unlock.
I have searched and read as much as I can find on this and other forums. It appears this has happened before but the threads I have found seem to stop without concluding if there is a solution or it's a lost cause.
Anyone have a solution to this? Or, is this phone just a brick?

same problem here, can anyone know how to unlock the bootloader or even revert to stock ROM with locked bootloader?
Also, is it possible to flash official ROMs, any of those with locked bootloader?
I never flashed any custom or other ROMs with my phone, and it just turned out like this

Related

[Q] Nexus S Stuck!

Hi,
today I woke up and my Nexus S was off. I turned it on and it just stucks while showing the google logo..
I tried pulling the battery, turning on.. still stucks!
so I tried do boot in Fastboot, ok.
Installed the SDK, the USB Drivers. The Nexus was recognized as "Android ADB Interface", ok.
Tried to list the device by "adb device", but I only said: list of devices attached. No device!
Then I tried "fastboot device". There it is! Trying "adb device" again, no device. mh.
So I tried to unlock the phone by typing "fastboot oem unlock".
I get the message on my phone, check "YES" and execute by pressing POWER, but no success. The phones stucks again. The cmd just says "...".
I spend 30min by watching on the cmd and the Nexus S, but no result.
What can I do?
Nexus S, locked Bootloader, 2.3.3, 2 days old
*push..*..
Can you get into the bootloader on the device? (Power and Volume Up)
Has it been rooted, and do you have CWM installed?
I can enter the the bootloader. Firmware is stock, unrooted!
I think the main problem is, that usb debug is not enabled in the device. Thats the reason why adb doesnt recognize it. But fastboot does ...
You can only use adb when the phone is booted up. Fastboot is for when the phone is in the bootloader.
Try going into recovery and doing a factory reset?
I don't know which phone you have, I'm on NS4G, got phone unlocked using GSM codes, so erased everything - a mess. When I got to backup using 2 finger method, there was nothing to reboot to
I went to Samsung site - found program called Samsung Simple DL for my phone, downloaded, executed and ran - back to stock. Kept it unlocked, but was back up and running.
I was paniced, so this might help

Not booting, Bootloader Unlock, Fastbood and ADB, no device found

Hi everyone. Thanks for your attention
I have a HTC Mini. Today I wasn't able to connect my phone into the wifi. Then, I restarted and afterwards the phone didn't boot at all. It goes only to the bootloader menu. Last two days I was looking for the solution. In the HBOOT menu when I tried to the factory reset it only jumps into the fastboot menu, same thing for the recovery. When I am in the fastboot menu, if I click on reboot, or reboot bootloader it just reboot and the HBOOT menu comes again.
However, my HBOOT menu is locked and when I wanted to try unlock it. following problem happen :
- when I connect the phone to a Mac, Fastboot Devices detect (but only fastboot, ADB devices return nothing) the phone and I could get the token for unlocking procedure, but when I load the the unlock token which sent to me by mail from HTCDEV, nothing happen. it just say everything was successful on Terminal, but nothing shows up on the phone to Confirm unlocking procedure and sometimes it hangs and if I try pushing the token again (the bin file), I receive an error, fail to splash the screen (something like this). However, I already installed the HTC Sync Manager and every other possible driver I could find on the internet.
- When I use windows, after installing HTC Sync and all of the drivers several time, still the command for Fastboot devices or ADB Devices return nothing. I don't care about the phone data or anything. I just want to like Flash the whole operating system and everything . thats fine. But nothing is working properly.
Please guide me if you have any idea about this problem.

Htc one mini stuck in fastboot mode

Hi everyone. Thanks for your attention
I have a HTC Mini. Today I wasn't able to connect my phone into the wifi. Then, I restarted and afterwards the phone didn't boot at all. It goes only to the bootloader menu. Last two days I was looking for the solution. In the HBOOT menu when I tried to the factory reset it only jumps into the fastboot menu, same thing for the recovery. When I am in the fastboot menu, if I click on reboot, or reboot bootloader it just reboot and the HBOOT menu comes again.
However, my HBOOT menu is locked and when I wanted to try unlock it. following problem happen :
- when I connect the phone to a Mac, Fastboot Devices detect (but only fastboot, ADB devices return nothing) the phone and I could get the token for unlocking procedure, but when I load the the unlock token which sent to me by mail from HTCDEV, nothing happen. it just say everything was successful on Terminal, but nothing shows up on the phone to Confirm unlocking procedure and sometimes it hangs and if I try pushing the token again (the bin file), I receive an error, fail to splash the screen (something like this). However, I already installed the HTC Sync Manager and every other possible driver I could find on the internet.
When I use windows, after installing HTC Sync and all of the drivers several time, still the command for Fastboot devices or ADB Devices return nothing. I don't care about the phone data or anything. I just want to like Flash the whole operating system and everything . thats fine. But nothing is working properly.
Please guide me if you have any idea about this problem.:crying::crying:
It happened to me too. Same sh1t. Camera didn't worked so i decided to restart the phone...from that time same story like yours.
same here, but i have an idea
when i do fastboot getvar all my baseband says N/A indicating corrupt or missing radio rom
the correct radio should be Radio_1.29.40g on mine based on the RUU i have on hand (used before)
RUU attempts to get into different mode and fails
i have been unable to extract the files from the RUU

How to flash a corrupted Google Nexus?

Dear friends,
I have LG Google Nexus 5 (Hammerhead D821(H) 32GB) model. Some days ago I tried to install Ubuntu Touch OS through UBports Software in my nexus 5 phone. But I forgot to enable USB Debugging first. So when I started the flash process and try to unlock bootloader, one time it show lock state unlocked. But In reality it was not unlocked. Because of this reason Ubuntu Touch OS installation is not completed and it corrupted my phone. Now I am unable to boot in android also. I also tried to re-flash my phone with Google Factory image but it was not completed because of my bootloader is locked. I don't know how i can unlock bootloader now. I used Wipe Data & Factory Reset option in Recovery Mode but it is also vain. Please help me how can I correct my phone.
Assuming you have adb/fastboot drivers correctly installed, you have to reboot to bootloader by pressing volume down + power and keeping them pressed until you see the bootloader screen. Then connect your phone to the PC and issue the following command from a command prompt:
fastboot oem unlock
Keep in mind that unlocking the bootloader will erase all your data, just like a factory reset, so backup everything first!
shivmahar said:
Dear friends,
I have LG Google Nexus 5 (Hammerhead D821(H) 32GB) model. Some days ago I tried to install Ubuntu Touch OS through UBports Software in my nexus 5 phone. But I forgot to enable USB Debugging first. So when I started the flash process and try to unlock bootloader, one time it show lock state unlocked. But In reality it was not unlocked. Because of this reason Ubuntu Touch OS installation is not completed and it corrupted my phone. Now I am unable to boot in android also. I also tried to re-flash my phone with Google Factory image but it was not completed because of my bootloader is locked. I don't know how i can unlock bootloader now. I used Wipe Data & Factory Reset option in Recovery Mode but it is also vain. Please help me how can I correct my phone.
Click to expand...
Click to collapse
perhaps it can help
https://forum.xda-developers.com/go...l-06-03-14-one-click-factory-restore-t2513937
shivmahar said:
Dear friends,
I have LG Google Nexus 5 (Hammerhead D821(H) 32GB) model. Some days ago I tried to install Ubuntu Touch OS through UBports Software in my nexus 5 phone. But I forgot to enable USB Debugging first. So when I started the flash process and try to unlock bootloader, one time it show lock state unlocked. But In reality it was not unlocked. Because of this reason Ubuntu Touch OS installation is not completed and it corrupted my phone. Now I am unable to boot in android also. I also tried to re-flash my phone with Google Factory image but it was not completed because of my bootloader is locked. I don't know how i can unlock bootloader now. I used Wipe Data & Factory Reset option in Recovery Mode but it is also vain. Please help me how can I correct my phone.
Click to expand...
Click to collapse
You can try with this toolkit http://www.wugfresh.com/nrt/
Surf the net in search of tutorial and info,there are also some videos on YouTube.
I already tried it but vain.
ilciumbia said:
Assuming you have adb/fastboot drivers correctly installed, you have to reboot to bootloader by pressing volume down + power and keeping them pressed until you see the bootloader screen. Then connect your phone to the PC and issue the following command from a command prompt:
fastboot oem unlock
Keep in mind that unlocking the bootloader will erase all your data, just like a factory reset, so backup everything first!
Click to expand...
Click to collapse
Dear Sir,
I tried to unlock bootloader with fastboot oem unlock command many times. When I used this command one time it shows unlocked but when I restarted bootloader it again shows locked.
Eh, this is not good. In my experience, this happens when the eMMC has gone bad, either faulty or write protected for some reason. I have investigated the issue and I have not found a solution yet... Even desoldering it and soldering it to a uSD custom PCB does not allow me to write to it... I am afraid you are stuck with a secretly bricked phone...
I don't know if you already tried all possible,just take a look at this thread.
https://forum.xda-developers.com/go...nexus-5-doesnt-boot-access-adb-t2521691/page3
Or even look at this,LG Flashtool.You don't need unlocked bootloader to flash.
https://forum.xda-developers.com/go...orial-how-to-flash-factory-images-lg-t2713833
The thread is quite old,but needed links are working correctly,i've just checked.

Problem with installing a custom recovery (custom binary blocked by OEM lock)

I have bought a used Samsung S10e (SM-G970F/DS) it came with Android 12 and it was reseted.
My goal is to install iodeOS. Even if the iodeOS website says "Update the stock firmware to the latest" I considered the instructions from LineageOS and installed the latest Android 11 version, following this (https://iode.tech/en/iodeos-installation/#1629185391421-4cf1f5c8-d900) uninstall instructions.
After Android 11 was installed I enabled the developer options. OEM-Unlock was not available. Therefore I followed these instructions (https://www.xda-developers.com/fix-...y-s9-samsung-galaxy-s8-samsung-galaxy-note-8/) and the OEM-Unlock was available again.
Now it seemed that everything is ready to install iodeOS or LineageOS. Therefore I followed this instructions (https://wiki.lineageos.org/devices/beyond0lte/install). It worked fine until "Installing a cutom recovery using heimdall"
after the "heimdall flash --RECOVERY <recovery_filename>.img --no-reboot" command the S10e shows a bar which is filled from the left to the right and then it shows "Custom Binary (RECOVERY) Blocked By OEM Lock"
Now I have no clue what to do :-(
I would be glad for any help.
​
You need to unlock the bootloader. You've toggled the OEM Unlocking switch, so unlocking the bootloader is the next step.
Make sure you have the Samsung USB drivers installed on your PC.
Turn off your device.
While holding the Bixby and Volume Down buttons, connect your phone to your PC.
The device should start in Download Mode. Hold down Volume Up until you get a warning about unlocking the bootloader. Unlocking the bootloader will wipe your data. Click Volume Up to confirm.
Your device will wipe data, then reboot. At this point, you can reboot to download mode and flash a custom recovery using Odin or Heimdall.
Thanks a lot for all your help!
The problem was I entered the download mode by the adb command "adb reboot-bootloader" and this mode seems to be different to the one which can be accessed by pressing the keys.
Now everything worked fine
I have exactly the same problem here:
SM-A205G with OEM Unlock enabled
There is no unlock bootloader in the bootloader no option anymore
at least in the bootloder of this edition
And I suppose that if it is the bootloader that flashes everything, it is COMPLETELLY LOCKED, could be jailbroken by some new method, but until them... no option :sad:
V0latyle said:
You need to unlock the bootloader. You've toggled the OEM Unlocking switch, so unlocking the bootloader is the next step.
Make sure you have the Samsung USB drivers installed on your PC.
Turn off your device.
While holding the Bixby and Volume Down buttons, connect your phone to your PC.
The device should start in Download Mode. Hold down Volume Up until you get a warning about unlocking the bootloader. Unlocking the bootloader will wipe your data. Click Volume Up to confirm.
Your device will wipe data, then reboot. At this point, you can reboot to download mode and flash a custom recovery using Odin or Heimdall.
Click to expand...
Click to collapse
It seems that this <confirm> option in the bootloader is being removed by samsung, so... even if unlock oem is enabled... it will not work...
I can only reach the bootloader by going to recovery mode them selecting reboot bootloader, or by adb reboot bootloader, but it boots directly in download mode without the option to long-press volume up key
A flasher that doesn't flashes doesn't makes sense. Maybe samsung have hidden something new in there?...
Ok. I've found the solution
1 - Power the phone off
2 - Hold both volume up and down
3 - PLUG THE USB BUTTON WHILE YOU HOLD BOTH these buttons
4 - NO NEED TO PRESS POWER BUTTON
I guess this will work for all phones that don't have the option to start with power+down
Yes. A flasher that does not flash don't exists.
Good luck ! \o/
source:
HELP!!! Custom Binary (BOOT) Blocked By OEM Lock
Hi there, I've been having trouble rooting my Samsung Galaxy A20 - SM-A205GN for awhile now. I'm officially on Android Version 10 with One UI Version 2.0, I've followed the provided guide to root my device but it fails on Odin "all versions" when...
forum.xda-developers.com
wavedevice said:
Ok. I've found the solution
1 - Power the phone off
2 - Hold both volume up and down
3 - PLUG THE USB BUTTON WHILE YOU HOLD BOTH these buttons
4 - NO NEED TO PRESS POWER BUTTON
I guess this will work for all phones that don't have the option to start with power+down
Yes. A flasher that does not flash don't exists.
Good luck ! \o/
source:
HELP!!! Custom Binary (BOOT) Blocked By OEM Lock
Hi there, I've been having trouble rooting my Samsung Galaxy A20 - SM-A205GN for awhile now. I'm officially on Android Version 10 with One UI Version 2.0, I've followed the provided guide to root my device but it fails on Odin "all versions" when...
forum.xda-developers.com
Click to expand...
Click to collapse
Yes, you don't unlock the bootloader VIA the bootloader in Samsung phones.
so you know what happened? I accidentaly reset my phone! I have gone into download mode and there was additional choices: to unlock bootloader holt volup, so I did, then again to confirm unlocking press volup. I did so and then there was for a brief moment android logo and "erasing" and then after about 2 minutes of just Samsung logo phone restarted and asked me to perform setup as it was new! WTH? There was nothing mentioned about deletion
DaHansi said:
I have bought a used Samsung S10e (SM-G970F/DS) it came with Android 12 and it was reseted.
My goal is to install iodeOS. Even if the iodeOS website says "Update the stock firmware to the latest" I considered the instructions from LineageOS and installed the latest Android 11 version, following this (https://iode.tech/en/iodeos-installation/#1629185391421-4cf1f5c8-d900) uninstall instructions.
After Android 11 was installed I enabled the developer options. OEM-Unlock was not available. Therefore I followed these instructions (https://www.xda-developers.com/fix-...y-s9-samsung-galaxy-s8-samsung-galaxy-note-8/) and the OEM-Unlock was available again.
Now it seemed that everything is ready to install iodeOS or LineageOS. Therefore I followed this instructions (https://wiki.lineageos.org/devices/beyond0lte/install). It worked fine until "Installing a cutom recovery using heimdall"
after the "heimdall flash --RECOVERY <recovery_filename>.img --no-reboot" command the S10e shows a bar which is filled from the left to the right and then it shows "Custom Binary (RECOVERY) Blocked By OEM Lock"
Now I have no clue what to do :-(
I would be glad for any help.
​
Click to expand...
Click to collapse
I had the same problem on my samsung tab a10.1. That's why I had to flash the stock firmware 3 times. Every time I flashed twrp with odin, I got the error (custom binary blocked by oem lock).
I write what they should do in order.
1. Turn on the phone.
2. Open Developer mode
3. USB debugging mode - on
4. oem unlocking - on
5. then turn off the phone and disconnect from usb
6. Connect the phone to the PC with USB by holding down the volume up and volume down buttons at the same time. WITHOUT PRESSING THE POWER BUTTON
7. Press and hold the volume up button according to the instructions in the pop-up window.
oem unlocked
Sorry that, I had another problem. May I know how to unlock the OEM if my S10e phone can't turn on.
My device always on "samsung" display page, can't open to index. Do you know this issue? Expecting your reply.
Hi! I have the same issue on my Xiaomi Mi 11 Pro (It was Chinese) but it came unlocked with xiaomi.eu rom.
After i installed a global rom, and google wallet nfc pay did not work, so i thought okay i will lock it then so maybe wallet would accept it, (with the eu rom it worked before) so i put the device in fastboot and used fastboot oem lock on cmd...
And from then it stucks on miui recovery 5.0 screen, and says, this miui version can't be installed on this device...
I might not enabled oem unlocking before i shut if off, but i added it to my mi account so i dont know if after a week i can maybe unlock it. But i think the other possible solution would be to sideload the original chinese stock rom, which is for M2102K1AC, Mi 11 pro, codename mars, but i couldn't find it anywhere... If someone can upload a link to it, that would be a huge help! Or any idea! thx!
geraldmany said:
HI! i got a mi 11 pro 1 year ago, and it was offically chinese, but it came unlocked with Xiaomi.eu firmware, but i could't update it via the updater app, so i searched and found the global star version and just flashed it, everything worked, only now google pay nfc didnt work, it said that its probably because of the unlocked bootloader, so i got to fastboot and in cmd i sent fastboot oem lock, and since then my phone is stuck in miui recovery 5.0 screen and says that i cannot run this firmware on the device, i tried to unlock it but failed, maybe after a week, but i think that i didnt turn on oem unlocking on the phone itself before this... So im just hoping that after a week unlocking could be done... Or my other idea is, that i could install the original chinese rom with sideload, because i managed to install another global version on it since, but the result is still the same, the only problem is that i cannot find literally anywhere a mars codenamed firmware...
Click to expand...
Click to collapse
Anyone who might have the same situation, i found a simple, but effective solution, not sure if it works on every xiaomi device, but i will write down the steps here:
You need to use XiaomiADB, here is the download link and the description for how to use it -> https://xiaomiui.net/how-to-use-xiaomiadb-8044/ (if the page is not available, then feel free to msg me!)
For xiaomi adb, you need to go to 3rd option on the miui recovery screen, NOT THE FASTBOOT
So basically i went through the steps to “xiaomiadb sideload_miui <filename>”
And I tried to install a rom, BUT IT DIDNT ACCEPT IT!
The message was:
ERROR: This rom cannot be installed, server code -> 2001, server message -> Can't install unofficial rom
after trying 4 times all the same and: Installation of this rom via stock recovery is not allowed by Xiaomi
Says Installation failed, and then i just decided to download another rom so i PLUGGED OUT THE PHONE right after this, and went to another room to connect to wired network, to download and try a different rom... when i came back, to all my surprise, the phone was turned on, so i went to the setting dev ops and enabled bootloader unlocking, linked it to my account enabled adb and everything that is needed to flash another rom later, so then i rebooted and again, miui recovery 5.0 screen, but now i enabled unlocking, so i put the phone in fastboot, and tried MI UNLOCKER TOOL again, now it says: Please unlock 168 hours later. And do not add your account in MIUI again, otherwise you will wait from scratch.
So that means, after 7 days i wll be able to unlock it, until then, i can turn it on with the above method, in short try to sideload (copy and install) a rom to it, and then after it failed, plug it out and just wait like 10-20 maybe 30 seconds and bam your device is normally booted... I hope it helps to some of you, (i have been searching for the solution for almost a week, my other option was to pay someone who can MAYBE do it or send the phone back to china and pay the repairs, so im really happy with this method! If it helps to you, please reply so i and the others will know that it worked! Have a nice day!

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