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[Q] wifi Xoom 3.1 unlocking bootloader error...

I've followed all the guides to a T. and my SDK is able to run nicely. However, once I've made contact w/ my device in 'usb debugging mode', tested the connection w/ "adb devices" in command prompt, and set the device to bootloader w/ the "adb reboot bootloader" command, and finally I give it the command to "fastboot oem unlock", I get an unknown error!! Please help. I have all the path variables set, and my SDK is running good, and has all the newest updates.
This is a link to a video I made of the problem. Please watch. It'll help if you can see the problem! just copy and paste - youtube.com/watch?v=2bROUZh7GRI
Thanks for your responses. I hope they come quickly!

V0nice said:
I've followed all the guides to a T. and my SDK is able to run nicely. However, once I've made contact w/ my device in 'usb debugging mode', tested the connection w/ "adb devices" in command prompt, and set the device to bootloader w/ the "adb reboot bootloader" command, and finally I give it the command to "fastboot oem unlock", I get an unknown error!! Please help. I have all the path variables set, and my SDK is running good, and has all the newest updates.
This is a link to a video I made of the problem. Please watch. It'll help if you can see the problem! just copy and paste - youtube.com/watch?v=2bROUZh7GRI
Thanks for your responses. I hope they come quickly!
Click to expand...
Click to collapse
Ok. I'm unlocked now. New problem... >.< There's always something!! now when I try to flash the recovery image, I get an unknown error.
"C:\AndroidSDK\tools>fastboot flash recovery recovery-Tiamat-R4c-100611-1150-cwm.
img
sending 'recovery' (3998 KB)...
FAILED (command write failed (Unknown error))
finished. total time: 0.636s
C:\AndroidSDK\tools>"
Anyone recognize why it would do this?

V0nice said:
Ok. I'm unlocked now. New problem... >.< There's always something!! now when I try to flash the recovery image, I get an unknown error.
"C:\AndroidSDK\tools>fastboot flash recovery recovery-Tiamat-R4c-100611-1150-cwm.
img
sending 'recovery' (3998 KB)...
FAILED (command write failed (Unknown error))
finished. total time: 0.636s
C:\AndroidSDK\tools>"
Anyone recognize why it would do this?
Click to expand...
Click to collapse
just copy and paste the command from the OP's instructions. I used the new Clockwork in the thread and just renamed it... which method are you using. I just did mine last Thursday with no issues. I used this method http://forum.xda-developers.com/showthread.php?t=1078019
HTML:
adb reboot bootloader
fastboot flash recovery recovery-Tiamat-R4c-100611-1150-cwm.img
fastboot reboot
Make sure you have the latest fastboot.exe and if all else fails start from the beginning again. Now you are sure your fastboot is unlocked....

playya said:
just copy and paste the command from the OP's instructions. I used the new Clockwork in the thread and just renamed it... which method are you using. I just did mine last Thursday with no issues. I used this method http://forum.xda-developers.com/showthread.php?t=1078019
HTML:
adb reboot bootloader
fastboot flash recovery recovery-Tiamat-R4c-100611-1150-cwm.img
fastboot reboot
Make sure you have the latest fastboot.exe and if all else fails start from the beginning again. Now you are sure your fastboot is unlocked....
Click to expand...
Click to collapse
I did just copy and paste it, and i got that error message.

V0nice said:
I did just copy and paste it, and i got that error message.
Click to expand...
Click to collapse
Did you try to do the fastboot unlock again

How did you manage to get unlock to work? Perhaps if you gave us more info on what you did?

[Q] HELP - NVFlash Bootloader failed

I'm on ICS and never upgraded to JB. I've just unlocked my bootloader so I can do NVFlash Backup and start flashing ROM's.
I unlocked without any problems. I've rebooted into bootloader and selected the USB icon. My computer found the drivers and correctly identified as 'ASUS Android Bootloader Interface'.
From the guide http://androidroot.mobi/pages/tegra3-guide-nvflash/
I ran the command
Code:
fastboot -i 0x0b05 flash staging ebtblob.bin
I got the following output from my Windows console
Code:
sending 'staging' (1002KB)...
FAILED (data transfer failure (Too many links))
finished. total time: 7.935s
On my tablet appears
Code:
Failed to process command download:000fa98d error(0x120003)
Also the device now appears in my windows device manager with the following error
Code:
This device cannot start. (Code 10)
{Operation Failed}
The requested operation was unsuccessful.
I've not rebooted my tablet for fear of this question...
Have I bricked my tablet?
P.S. At this point I haven't attempted to reboot my device because I'm worried it might never come back.

So I've been crawling around the internet for anyone else who's had this problem and the only person with a similar issue is
http://forum.xda-developers.com/showpost.php?p=32222050&postcount=110
So since my OP, I've removed the USB cable from my laptop, plugged it back in and I can see my TF300.
When I run
Code:
fastboot devices
I get
Code:
00000 fastboot
Which I assume means my computer can see it?
At the moment I've still not rebooted. From what I've read Staging partition is applied at boot, which I assume means no changes have been made yet?
Because my transfer failed, will anything be applied from Staging on next reboot? Or should I run a command now to prevent any changes?
Thanks

Any help on this will be much appreciated.
Just to clarify, I've still not rebooted my device since I attempted the flash and seem to have access to Fastboot. I don't want to reboot unless I know it's safe to do so.
Thanks!

I thought this morning I'd try and change my drivers and run the command again.
I thought first I'd use Universal Naked Drivers, when I select the INF 'android_winusb.inf' file I get two options both called 'Asus Fastboot Interface'.
If I select either of these I get the following error
The hash for the file is not present in the specified catalogue file. The file is probably corrupt or has been tempered with.
The other option I do seem to have is under manufacturer 'Google, Inc.' I've got 'Android Bootloader Interface'. Is that any better?

So I eventually got the Universal Naked Drivers to work (after disabling Driver signature enforce from Windows boot options) and I could see my device in device manager and from 'fastboot devices'.
So I re-ran
Code:
fastboot -i 0x0b05 flash staging ebtblob.bin
And this time it also failed with another message. In my console showed
Code:
sending 'staging' (1002 KB)...
FAILED (remote: (AccessDenied))
finished. total time: 0.014s
And my TF300 displayed the line
Code:
Failed to process command download:000fa98d error(0x30010)
But this time, I can no longer see my device from device manager or 'bootloader devices'. Windows doesn't even make the 'device inserted' sound when I plug it in.

So I finally gave in and rebooted my tablet.
To my great relief it booted successfully!
I was so nervous about doing this before hand and this experience has really knocked my confidence down.
What I'd like to know is: Is it down to the driver I'm using that I'm getting my original error? Is it a problem with my PC or my tablet?
Thanks

psjw12 said:
So I finally gave in and rebooted my tablet.
To my great relief it booted successfully!
I was so nervous about doing this before hand and this experience has really knocked my confidence down.
What I'd like to know is: Is it down to the driver I'm using that I'm getting my original error? Is it a problem with my PC or my tablet?
Thanks
Click to expand...
Click to collapse
I've seen posts where problems similar to this have been solved by just using a different USB port, one at the back if you're using a PC. At least it might be worth a try.

daws said:
I've seen posts where problems similar to this have been solved by just using a different USB port, one at the back if you're using a PC. At least it might be worth a try.
Click to expand...
Click to collapse
I'll give that a try. I'm also gonna try updating my Android toolkit and using the Android Fastboot drivers (rather than the ASUS ones).
I'll let you know how I get on with that.

psjw12 said:
I'll give that a try. I'm also gonna try updating my Android toolkit and using the Android Fastboot drivers (rather than the ASUS ones).
I'll let you know how I get on with that.
Click to expand...
Click to collapse
Did you have luck with your device? The thing is i have a similiar problem with my device. The only difference might be that my mainboard has been exchanged during an RMA. But apart from that I also have a unlocked ics bootloader and when tried:
Code:
fastboot -i 0x0b05 flash staging ebtblob.bin
everything seemed to be ok, because i got the following message:
Code:
sending 'staging' (1002 KB)...
OKAY [ 0.257s]
writing 'staging'...
OKAY [ 0.293s]
finished. total time: 0.550s
However if I check for devices afterwards, using:
Code:
fastboot devices
I get the following wierd message:
Code:
???????????? fastboot
Luckily when I restart the device it is like nothing happend. It still says "The device is unlocked" on the top left corner of the screen and the fastboot commands work as usual. I really appreciate your help.
Jan

Claudii said:
Did you have luck with your device? The thing is i have a similiar problem with my device. The only difference might be that my mainboard has been exchanged during an RMA. But apart from that I also have a unlocked ics bootloader and when tried:
Code:
fastboot -i 0x0b05 flash staging ebtblob.bin
everything seemed to be ok, because i got the following message:
Code:
sending 'staging' (1002 KB)...
OKAY [ 0.257s]
writing 'staging'...
OKAY [ 0.293s]
finished. total time: 0.550s
However if I check for devices afterwards, using:
Code:
fastboot devices
I get the following wierd message:
Code:
???????????? fastboot
Luckily when I restart the device it is like nothing happend. It still says "The device is unlocked" on the top left corner of the screen and the fastboot commands work as usual. I really appreciate your help.
Jan
Click to expand...
Click to collapse
That's odd, it's like Fastboot says image was deployed but then it doesn't apply the change. Thank goodness there's a staging partition on Asus! I also had the problem of the device disconnecting whilst trying to flash and then not showing up.
How does the tablet show up in your device manager? As 'Asus Fastboot' or 'Android Fastboot'? Mine was ASUS and I was thinking of trying the Android driver instead.
I've not tried to flash mine again since trying, I'm going to wait for an appropriate time for me to have a heart attack if it all goes wrong
Edit: The next command it wants to issue is
Code:
fastboot -i 0x0b05 reboot
I wonder if that what makes it commit the changes? Hopefully someone can answer that for me.

Softbrick, can't unlock bootloader, that's why I cant unbrick it, pls help!

So hello! I need some help here. A friend of a friend gave me this oneplus one for repair and at first it seemed easy cause i thought oh it's only a softbrick. There is a bootloop and I can access the original recovery and Fastboot. Now when I followed the unbricking guides I could not clean install CM12S because appereantly the bootloader is not unlocked but do I need to have an unlocked bootloader to install a clean signed version of CM12S?
I am trying to solve the issue with bacon root toolkit 1.0.3. I put the OPO into fastboot mode and click on "back to stock", select a signed fastboot version cm12.1s and my device is detected as a fastboot device. But now i get these weird error codes in command prompt
" FAILED (remote: Device not unlocked cannot flash or erase)" and then just another bootloop.
So I tried to unlock the bootloader with the command "fastboot oem unlock" and it does something but then when i check it with "fastboot oem device-info" it displays
"(bootloader) Device tampered: true
(bootloader) Device unlocked: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.007s]
finished. total time: 0.008s"
hmmm.. so it does not unlock the bootloader but what does device tampered mean?
How do i unlock the bootloader and ultimately unbrick this device?
any help would be greatly appreciated!

GriechischerYoghurt said:
So hello! I need some help here. A friend of a friend gave me this oneplus one for repair and at first it seemed easy cause i thought oh it's only a softbrick. There is a bootloop and I can access the original recovery and Fastboot. Now when I followed the unbricking guides I could not clean install CM12S because appereantly the bootloader is not unlocked but do I need to have an unlocked bootloader to install a clean signed version of CM12S?
I am trying to solve the issue with bacon root toolkit 1.0.3. I put the OPO into fastboot mode and click on "back to stock", select a signed fastboot version cm12.1s and my device is detected as a fastboot device. But now i get these weird error codes in command prompt
" FAILED (remote: Device not unlocked cannot flash or erase)" and then just another bootloop.
So I tried to unlock the bootloader with the command "fastboot oem unlock" and it does something but then when i check it with "fastboot oem device-info" it displays
"(bootloader) Device tampered: true
(bootloader) Device unlocked: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.007s]
finished. total time: 0.008s"
hmmm.. so it does not unlock the bootloader but what does device tampered mean?
How do i unlock the bootloader and ultimately unbrick this device?
any help would be greatly appreciated!
Click to expand...
Click to collapse
Hi
Trying to help.
Your device might be tampered as the "fastboot oem device-info" result shows.
Follow the steps and see if it helps (all commands below are to be entered without quotes)
1. Download latest cm13 nightly or the cm12.1-snapshot and extract the "boot.img" from it.
2. Connect the phone in fastboot mode and check connection by "fastboot devices."
3. Enter the command "fastboot flash recovery boot.img" (the one extracted above).
4. Then enter "fastboot format cache".
5. After the boot.img is flashed, enter "fastboot reboot" to reboot the phone and the let the phone boot fully to homescreen. If stuck on bootscreen( i assume rom is not tampered with) try entering stock recovery and clear cache and dalvik-cache.
6. Now again enter bootloader by reboot or using combo and check connection by "fastboot devices".
7. Now enter "fastboot oem unlock".
8. Now check "fastboot oem device-info".
It should be unlocked like:
(bootloader) Device tampered: true
(bootloader) Device unlocked: true
Please do reply if it helped.

e1forall said:
Hi
Trying to help.
Your device might be tampered as the "fastboot oem device-info" result shows.
Follow the steps and see if it helps (all commands below are to be entered without quotes)
1. Download latest cm13 nightly or the cm12.1-snapshot and extract the "boot.img" from it.
2. Connect the phone in fastboot mode and check connection by "fastboot devices."
3. Enter the command "fastboot flash recovery boot.img" (the one extracted above).
4. Then enter "fastboot format cache".
5. After the boot.img is flashed, enter "fastboot reboot" to reboot the phone and the let the phone boot fully to homescreen. If stuck on bootscreen( i assume rom is not tampered with) try entering stock recovery and clear cache and dalvik-cache.
6. Now again enter bootloader by reboot or using combo and check connection by "fastboot devices".
7. Now enter "fastboot oem unlock".
8. Now check "fastboot oem device-info".
It should be unlocked like:
(bootloader) Device tampered: true
(bootloader) Device unlocked: true
Please do reply if it helped.
Click to expand...
Click to collapse
Thanks for the reply! I tried the steps but sadly it did not work.
I downloaded cm13, extracted it to my fastboot.exe folder and did enter the commands.
"c:\unlock>fastboot devices
9c50d771 fastboot"
So my device does show up which means drivers are properly installed aren't they?
"c:\unlock>fastboot flash recovery boot.img
target reported max download size of 1073741824 bytes
sending 'recovery' (7254 KB)...
OKAY [ 0.232s]
writing 'recovery'...
FAILED (remote: Device not unlocked cannot flash or erase)
finished. total time: 0.254s"
There is the error message again, I can't flash the stock recovery becaue the bootloader is not unlocked I think but I don't know what else to do.
then:
"c:\unlock>fastboot format cache
Creating filesystem with parameters:
Size: 536870912
Block size: 4096
Blocks per group: 32768
Inodes per group: 8192
Inode size: 256
Journal blocks: 2048
Label:
Blocks: 131072
Block groups: 4
Reserved block group size: 31
Created filesystem with 11/32768 inodes and 4206/131072 blocks
target reported max download size of 1073741824 bytes
erasing 'cache'...
FAILED (remote: failed to erase partition
)
finished. total time: 5.068s"
I did that too, I can't tell if it formatted cache or not, I dunnoooo
and then i entered the two commands to unlock and then check the bootloader:
"c:\unlock>fastboot reboot
rebooting...
finished. total time: 0.005s
c:\unlock>fastboot devices
9c50d771 fastboot
c:\unlock>fastboot oem unlock
...
OKAY [ 10.102s]
finished. total time: 10.106s
c:\unlock>fastboot oem device-info
...
(bootloader) Device tampered: true
(bootloader) Device unlocked: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.013s]
finished. total time: 0.014s"
sooooo it sadly did not work

GriechischerYoghurt said:
So hello! I need some help here. A friend of a friend gave me this oneplus one for repair and at first it seemed easy cause i thought oh it's only a softbrick. There is a bootloop and I can access the original recovery and Fastboot. Now when I followed the unbricking guides I could not clean install CM12S because appereantly the bootloader is not unlocked but do I need to have an unlocked bootloader to install a clean signed version of CM12S?
I am trying to solve the issue with bacon root toolkit 1.0.3. I put the OPO into fastboot mode and click on "back to stock", select a signed fastboot version cm12.1s and my device is detected as a fastboot device. But now i get these weird error codes in command prompt
" FAILED (remote: Device not unlocked cannot flash or erase)" and then just another bootloop.
So I tried to unlock the bootloader with the command "fastboot oem unlock" and it does something but then when i check it with "fastboot oem device-info" it displays
"(bootloader) Device tampered: true
(bootloader) Device unlocked: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.007s]
finished. total time: 0.008s"
hmmm.. so it does not unlock the bootloader but what does device tampered mean?
How do i unlock the bootloader and ultimately unbrick this device?
any help would be greatly appreciated!
Click to expand...
Click to collapse
Hi I had the same problem a couple of weeks ago, if you're able to boot into a custom recovery, flash this http://forum.xda-developers.com/oneplus-one/development/mod-reset-unlock-tamper-bit-t2820912 it's an alternative way of getting bootloader unlocked. Hope it helps

smarttmd said:
Hi I had the same problem a couple of weeks ago, if you're able to boot into a custom recovery, flash this http://forum.xda-developers.com/oneplus-one/development/mod-reset-unlock-tamper-bit-t2820912 it's an alternative way of getting bootloader unlocked. Hope it helps
Click to expand...
Click to collapse
I have looked into that but how do I flash it?
I tried the commands "fastboot boot -image file-" but it says i cant do that cause once again the bootloader is locked
then there is "fastboot boot recovery -image file-" but then it says " cant find directory" or something like that..
could you please give me step by stepe instruction how you solved the issue?
I am getting very frustrated here.. beginning to think it's unsolveable.
sadly i can't boot into a custom recovery :C

GriechischerYoghurt said:
I have looked into that but how do I flash it?
I tried the commands "fastboot boot -image file-" but it says i cant do that cause once again the bootloader is locked
then there is "fastboot boot recovery -image file-" but then it says " cant find directory" or something like that..
could you please give me step by stepe instruction how you solved the issue?
I am getting very frustrated here.. beginning to think it's unsolveable.
sadly i can't boot into a custom recovery :C
Click to expand...
Click to collapse
You flash this zip in a custom recovery like any other mod. Luckily for me I still had my twrp installed so I managed to do it, but you should be able to temporarily boot from it. Is your custom recovery image in the active directory?

smarttmd said:
You flash this zip in a custom recovery like any other mod. Luckily for me I still had my twrp installed so I managed to do it, but you should be able to temporarily boot from it. Is your custom recovery image in the active directory?
Click to expand...
Click to collapse
yes it's in the directory from where i start command prompt

Try ColorOS fix if CM doesn't work. http://forum.xda-developers.com/one...neplus-one-t3013732/post58442392#post58442392
Edit: (Only if you can't get anything else to work, though)

meekrawb said:
Try ColorOS fix if CM doesn't work. http://forum.xda-developers.com/one...neplus-one-t3013732/post58442392#post58442392
Edit: (Only if you can't get anything else to work, though)
Click to expand...
Click to collapse
I tried that too. Here i

GriechischerYoghurt said:
I tried that too. Here i
Click to expand...
Click to collapse
Rough spot to be in then. Hopefully someone has some other ideas for you to try. Good luck bud.

meekrawb said:
Try ColorOS fix if CM doesn't work. http://forum.xda-developers.com/one...neplus-one-t3013732/post58442392#post58442392
Edit: (Only if you can't get anything else to work, though)
Click to expand...
Click to collapse
I tried that too.. Spoiler.. it did not work.
The drivers seem to work. I have my windows 10 set to testmode. The OPO is recognized by the Msm8974DownloadTool,, when I click on "start" the bar moves to 3/4 of the bar but then something happens and I get a "sahara" message". I tried it maybe over 10 times now. Sometimes it shows me the message immediately. Sometimes the green bar gets to 1/4 of the bar and then the "sahara" message. But sometimes the bar gets to 4/4 one time and then it says "(somethinsomething)usb(somethingsomething in chinese i guess)" and thats it. Only bootloop as a result. Maaaaan this is getting annoying.

I think where something might have gone wrong was trying to use a toolkit. Try this:
Download latest fastboot images from here: http://forum.xda-developers.com/oneplus-one/general/official-cm11s-roms-ota-updates-t2906746
Then go here: http://forum.xda-developers.com/oneplus-one/general/guides-bacon-timmaaas-how-to-guides-t2839471
Scroll down to #8 and follow the instructions to flash all of the images using fastboot. Hopefully, you will be able to boot the phone after that. Good luck!

GriechischerYoghurt said:
I tried that too.. Spoiler.. it did not work.
The drivers seem to work. I have my windows 10 set to testmode. The OPO is recognized by the Msm8974DownloadTool,, when I click on "start" the bar moves to 3/4 of the bar but then something happens and I get a "sahara" message". I tried it maybe over 10 times now. Sometimes it shows me the message immediately. Sometimes the green bar gets to 1/4 of the bar and then the "sahara" message. But sometimes the bar gets to 4/4 one time and then it says "(somethinsomething)usb(somethingsomething in chinese i guess)" and thats it. Only bootloop as a result. Maaaaan this is getting annoying.
Click to expand...
Click to collapse
I think the last time I used the ColorOS tool was on Windows 7. Windows 8/10 seems to be a real nightmare.

ryanmat said:
I think where something might have gone wrong was trying to use a toolkit. Try this:
Download latest fastboot images from here: http://forum.xda-developers.com/oneplus-one/general/official-cm11s-roms-ota-updates-t2906746
Then go here: http://forum.xda-developers.com/oneplus-one/general/guides-bacon-timmaaas-how-to-guides-t2839471
Scroll down to #8 and follow the instructions to flash all of the images using fastboot. Hopefully, you will be able to boot the phone after that. Good luck!
Click to expand...
Click to collapse
Thanks for the reply and trying to help! but as I stated in the title my bootloader is LOCKED so i can't write anything to it. The guide of Heisenberg states clearly "Prerequisites: unlocked bootloader." so I knew it would not work but I tried it anyway.. sadly it did not work.. this is what it's giving me:
"C:\Users\Abdulla\Desktop\cm-12.1-YOG7DAS2K1-bacon-signed-fastboot-bed37f2e18>fastboot flash modem NON-HLOS.bin
target reported max download size of 1073741824 bytes
sending 'modem' (57457 KB)...
OKAY [ 1.804s]
writing 'modem'...
FAILED (remote: Device not unlocked cannot flash or erase)
finished. total time: 1.804s
C:\Users\Abdulla\Desktop\cm-12.1-YOG7DAS2K1-bacon-signed-fastboot-bed37f2e18>"
funny thing is, it's "only" a softbrick but behaves like a hardbrick. I can't do anything and I don't know what to do at this point.

meekrawb said:
I think the last time I used the ColorOS tool was on Windows 7. Windows 8/10 seems to be a real nightmare.
Click to expand...
Click to collapse
I will try the ColorOS hardbrick method on a virtual XP machine and report back.

I tried it on a virtual XP machine but i can't get to mount the OPO, i get this error message.. now the first sentence is german and its says " the usb device Qualcomm CDMA Technologies MSM QHSUSB__BULK could not be mounted on the virtual mashine windows xp."
"Das USB-Gerät Qualcomm CDMA Technologies MSM QHSUSB__BULK konnte nicht an die virtuelle Maschine windows xp gebunden werden.
USB device 'Qualcomm CDMA Technologies MSM QHSUSB__BULK' with UUID {cdedf1ad-9235-40ef-80cf-efc72ba7678c} is busy with a previous request. Please try again later."
I don't even know if it's worth the effort trying to find a XP system and try it.. my hopes that it would work are very low at this point.. please let me know if you know a solution to this nightmare.

GriechischerYoghurt said:
I tried it on a virtual XP machine but i can't get to mount the OPO, i get this error message.. now the first sentence is german and its says " the usb device Qualcomm CDMA Technologies MSM QHSUSB__BULK could not be mounted on the virtual mashine windows xp."
"Das USB-Gerät Qualcomm CDMA Technologies MSM QHSUSB__BULK konnte nicht an die virtuelle Maschine windows xp gebunden werden.
USB device 'Qualcomm CDMA Technologies MSM QHSUSB__BULK' with UUID {cdedf1ad-9235-40ef-80cf-efc72ba7678c} is busy with a previous request. Please try again later."
I don't even know if it's worth the effort trying to find a XP system and try it.. my hopes that it would work are very low at this point.. please let me know if you know a solution to this nightmare.
Click to expand...
Click to collapse
When you do a fastboot oem unlock does it reboot you back into recovery?

I used HighOnAndroid's guide to unlock bootloader, flash a custom recovery, and root.
Tutorial Video
https://www.youtube.com/watch?v=vPv2DYnH3S8&index=9&list=PLB86F041EAFE4F3E5
Step-By-Step and Downloads
http://highonandroid.com/android-smartphones/how-to-root-oneplus-one/

Why don't you flash firmware in unlocked bootloader, if possible ( please refer in the forum, as i think there's a way to flash firmware and then you can unlock bootloader )

Go to an independent repair shop. They have the equipment to flash on the motherboard.

Unlocking Bootloader: "command write failed" after most fastboot commands.

So 10 hours ago I decided I wanted to root my phone to install some apps and maybe even a cool ROM.
I read that the first step is to unlock the bootloader. I have trying my hardest to do this first step for 10 hours.
I've read 4-5 different tutorials twice on xda.
My phone is:
HTC One A9(hiae), bought in Sweden
hTc download mode
*** LOCKED ***
htc_hiaeuhl PVT S-ON
LK-1.0.0.000
[email protected]
OpenDSP-7.8.2.00197-8952_1228
OS-1.56.401.70
Jan 22 2016....
I have tried the normal way through htcdev.com even had the Unlock_code.bin at one point. But I had to reinstall all drivers twice to get it.
I have tried using the WinDroid Toolkit, no better than the manual way.
I got my hard earned token ID through both ways.
I find that every time I want to use fasstboot to send over a file i.e. "fastboot flash recovery twrp.img" hTc download mode is stuck at Start download, like I need to confirm it but can't because the command failed. The same goes for the Unlock_code.bin, can't send it over.
Code:
C:\adb>fastboot devices
HT5AVBE04449 fastboot
C:\adb>fastboot flash unlocktoken Unlock_code.bin
target didn't report max-download-size
sending 'unlocktoken' (0 KB)...
FAILED (command write failed (Unknown error))
finished. total time: 0.003s
I can get past this next problem temporarily by reinstalling all drivers, tedious.
Code:
C:\adb>fastboot oem get_identifier_token
...
FAILED (command write failed (Unknown error))
finished. total time: 5.002s
Possible problems:
hTc download mode: I need to accept the download before fastboot give up, instant.
Win10: Bad OS for this?
USB connectors: Not enough power? Some other USB devices don't work here normally.
HTC Sync Manager: I've not bother installing the software.

Solution
I've made it;
I'm not sure if I was in the real download mode at the time, but that might have been it.
Also this time I redid everything, deleted all the drivers correctly and installed via Universal Naked Drivers

Hello,
Did you check OEM unlocking to allow the bootloader to be unlocked in Settings/Developper options (hidden by default, appears when you tap Build number 10x in Setting/About/ Software information/More/ Build number) ?

ouioui01 said:
Hello,
Did you check OEM unlocking to allow the bootloader to be unlocked in Settings/Developper options (hidden by default, appears when you tap Build number 10x in Setting/About/ Software information/More/ Build number) ?
Click to expand...
Click to collapse
For my phone it is 8 taps and yes. Every time I start a new Android I do a OEM unlock.
But I might be correct to change USB connector.

Android - Corrupted system after security update

After installing a security update, my device won’t boot. Is there a way out of this without losing my data?
In more details:
My device is a Moto e7 XT2095-2 with Android 10.
Today I got a notification for the latest security update. I downloaded it. My phone tried to restart but failed, and looped several times.
In the end it displayed a black screen with a barcode and “fastboot mode ...”.
After trying to reboot again, now I’m getting this message:
Android Recovery
motorola/malta_reteu/malta
10/QOFS30.569-36-31/095c7
user/release-keys
Use volume up/down and power
Can’t load Android system. Your data may be corrupt. If you continue to get this message, you may need to perform a factory data reset and erase all user data stored on this device.
If I select “Try again”, I’m getting an “Error!” screen then the device reboots (tries to, I mean).
The device is not rooted. I haven’t unlocked the bootloader, installed a custom ROM, or a custom recovery.
Developer options are enabled – that’s the only difference from the average person’s smartphone.
I have no backup of my data.
I know very little about Android, but as a developer I’m comfortable enough learning about it.
I searched online what I could do, and tried to ADB sideload the stock OTA as described here:
https://www.droidwin.com/fix-cant-load-android-system-your-data-may-be-corrupt-without-reset/
with the 2 latest files from here https://mirrors.lolinet.com/firmware/moto/malta/official/RETEU/
On my laptop terminal, I got this:
serving: 'update.zip' (~0%) adb: failed to read command: Undefined error: 0
And on the device:
Finding update package…
Opening update package…
Verifying update package…
E:footer is wrong
Update package verification took 0.2s (result 1)
E:Signature verification failed
E:error: 21
Install from ADB completed with status 2.
Installation aborted.
I’m a bit confused from reading a lot of contradictory information. Is this method supposed to work or is it failing because my bootloader is locked or because I’m using the stock recovery?
Is there a way to fix this bootloop without losing my data? Is there any way to backup the device’s data before a factory reset?
I would really appreciate if someone could point me to things worth trying!
Thanks

you will find lot of contradictory information, also on xda. so please handle my information with care, too
1) no problem for official OTAs, stock recovery is intented to flash (proper signed) update.zip on locked bootloader. have a look into zip META-INF/com/google/android/updater-script and figure out where the error 21 comes from, or search for it...
2) it is A/B device so you might be able to switch slot from fastboot and boot into other working slot (if not flagged as invalid)
3) you can backup (encrypted) userdata partition from mtkclient. unfortunately this won't help on factory reset, as every android device run several proprietary OS (which can't backed up) so factory reset will destroy encryption regardless of your backup

(replied to the wrong post)

aIecxs said:
you will find lot of contradictory information, also on xda. so please handle my information with care, too
1) no problem for official OTAs, stock recovery is intented to flash (proper signed) update.zip on locked bootloader. have a look into zip META-INF/com/google/android/updater-script and figure out where the error 21 comes from, or search for it...
2) it is A/B device so you might be able to switch slot from fastboot and boot into other working slot (if not flagged as invalid)
3) you can backup (encrypted) userdata partition from mtkclient. unfortunately this won't help on factory reset, as every android device run several proprietary OS (which can't backed up) so factory reset will destroy encryption regardless of your backup
Click to expand...
Click to collapse
Thanks for the suggestions!
2) I had never heard of A/B slots before, I will read a bit about it and try
1) Error 21 seems to be caused by a ROM that isn’t signed by the manufacturer. https://gossipfunda.com/android-update-error-21/
All the ROMS on https://mirrors.lolinet.com/firmware/moto/malta/official/RETEU/ seem to be “user signed”, the 2 I tried have these filenames:
XT2095-2_MALTA_RETEU_10_QOFS30.569-36-29_2201_220222_user_SIGN_008_SVC.zip
XT2095-2_MALTA_RETEU_10_QOFS30.569-36-31_2203_220331_user_SIGN_008_SVC.zip
I read that the signature verification can be bypassed using a custom recovery, but this requires unlocking the bootloader and erasing all data.
I will try to find a signed ROM.

please double check maybe it's zip in zip

aIecxs said:
please double check maybe it's zip in zip
Click to expand...
Click to collapse
It's not, the zip contains a few dozen files, mostly .img

aIecxs said:
you will find lot of contradictory information, also on xda. so please handle my information with care, too
1) no problem for official OTAs, stock recovery is intented to flash (proper signed) update.zip on locked bootloader. have a look into zip META-INF/com/google/android/updater-script and figure out where the error 21 comes from, or search for it...
2) it is A/B device so you might be able to switch slot from fastboot and boot into other working slot (if not flagged as invalid)
3) you can backup (encrypted) userdata partition from mtkclient. unfortunately this won't help on factory reset, as every android device run several proprietary OS (which can't backed up) so factory reset will destroy encryption regardless of your backup
Click to expand...
Click to collapse
I tried to change the slot, but no luck. It's only possible with an unlocked device.
That's a pity. If it's meant to help average users who just get into a bootloop caused by a faulty update, they're unlikely to have unlocked their device, why would they?
$ ./fastboot getvar current-slot
current-slot: a
Finished. Total time: 0.003s
$ ./fastboot --set-active=b
Setting current slot to 'b' FAILED (remote: 'set_active command is not allowed on locked devices')
fastboot: error: Command failed
$
Also found this: https://www.droidwin.com/fix-failed-remote-slot-change-is-not-allowed-in-lock-state/

too bad. you can backup seccfg, unlock with mtkclient (no fastboot flashing unlock needed) switch slots and restore seccfg. it's a bit dangerous as accidentially booting into android while in unlocked state will make encryption invalid, so make sure you boot into fastboot mode only (maybe use hair tie for volume key?)
unlocking with mtkclient does not factory reset, but do not erase metadata, userdata or md_udc (backup recommended)

aIecxs said:
too bad. you can backup seccfg, unlock with mtkclient (no fastboot flashing unlock needed) switch slots and restore seccfg. it's a bit dangerous as accidentially booting into android while in unlocked state will make encryption invalid, so make sure you boot into fastboot mode only (maybe use hair tie for volume key?)
unlocking with mtkclient does not factory reset, but do not erase metadata, userdata or md_udc (backup recommended)
Click to expand...
Click to collapse
Thanks! I'll read more about this, to be sure I understand what I'm doing, then give it a go.
Is there a step to relock with mtkclient at some point, or should I leave it unlocked and boot normally at the end?

as mentioned, do not try to boot in unlocked state you will lose all data. re-lock bootloader by restoring (locked) seccfg first!

aIecxs said:
as mentioned, do not try to boot in unlocked state you will lose all data. re-lock bootloader by restoring (locked) seccfg first!
Click to expand...
Click to collapse
Ok, I didn't know that would restore the locked state as well.

aIecxs said:
too bad. you can backup seccfg, unlock with mtkclient (no fastboot flashing unlock needed) switch slots and restore seccfg. it's a bit dangerous as accidentially booting into android while in unlocked state will make encryption invalid, so make sure you boot into fastboot mode only (maybe use hair tie for volume key?)
unlocking with mtkclient does not factory reset, but do not erase metadata, userdata or md_udc (backup recommended)
Click to expand...
Click to collapse
I'm delayed by other issues while trying to get a win10 virtualbox running so that I can run mtkclient... Am I right to assume it can run in virtualbox, and doesn't require a non-virtual win OS?

virtalbox requires usb passthrough. why not use native OS all platform supported. or just try the Live DVD V4 provided?

aIecxs said:
virtalbox requires usb passthrough. why not use native OS all platform supported. or just try the Live DVD V4 provided?
Click to expand...
Click to collapse
You're right. I think I had seen only Win and Linux, not MacOS. I was probably confused with some other tool I came across in my search!

tom353 said:
You're right. I think I had seen only Win and Linux, not MacOS. I was probably confused with some other tool I came across in my search!
Click to expand...
Click to collapse
Actually that was for SP Flash Tool, not mtkclient. So that I can backup seccfg.

mtkclient is replacement for SP Flash Tool, you can backup all partitions at once into directory out (rl = read all)
Code:
python3 mtk rl out

aIecxs said:
mtkclient is replacement for SP Flash Tool, you can backup all partitions at once into directory out (rl = read all)
Code:
python3 mtk rl out
Click to expand...
Click to collapse
Ah, great. Thanks!

In following the steps in https://github.com/bkerler/mtkclient I'm reading this:
If the device has a vendor interface 0xFF (like LG), make sure to add "blacklist qcaux" to the "/etc/modprobe.d/blacklist.conf".
How can I find out whether my device "has a vendor interface 0xFF"?

check bDeviceClass on lsusb -vv
https://www.beyondlogic.org/usbnutshell/usb5.shtml#DeviceDescriptors

It’s been a while (life happens...), but I haven’t given up on this!
I couldn’t get MTKClient to run on MacOSX, but I eventually got my hands on an old PC and used the liveDVD.
So, I did what you suggested. Backup up seccfg, unlocked bootloader with MTKClient, switched slots with fastboot, then restored seccfg.
Unfortunately, the device is still stuck in the same bootloop. Then after maybe 5 tries it goes into either fastboot, or that “Can’t load Android system. Your data may be corrupt.” screen from my first post.
Also, it switches back to slot A during that bootloop.
I could verify that after a ./fastboot reboot (into fastboot again) , the current-slot was indeed changed to B.
$ ./fastboot getvar current-slot
current-slot: a
Finished. Total time: 0.003s
$ ./fastboot --set-active=b
Setting current slot to 'b' OKAY [ 0.011s]
Finished. Total time: 0.014s
$ ./fastboot getvar current-slot
current-slot: a
Finished. Total time: 0.003s
$ ./fastboot set_active b
Setting current slot to 'b' OKAY [ 0.008s]
Finished. Total time: 0.011s
$ ./fastboot getvar current-slot
current-slot: a
Finished. Total time: 0.003s
$ ./fastboot reboot
Rebooting OKAY [ 0.003s]
Finished. Total time: 0.003s
$ ./fastboot getvar current-slot
current-slot: b
Finished. Total time: 0.003s
During the bootloop , I also diverted it into fastboot to verify, after 2 or 3 boot attempts, it was still on B. But later on it switched back to A.
Actually, I noticed that I could change the slot without unlocking the bootloader.
There are 2 ways to access fastboot on that device. One way is from within recovery mode, which I had been using initially, and in this fastboot I’m getting this message “set_active command is not allowed on locked devices”. But the other way is to access fastboot from the first menu, and that fastboot lets me use set_active.
This restriction that applies to one fastboot and not the other made me wonder whether the “OKAY” message actually did the job, but the different responses from getvar current-slot seem to confirm that.
Anyway, the short conclusion is that switching slots didn’t make the device to boot, and it sets itself back to slot A after trying to boot on B.
Another observation I made is that I’m not sure MTKClient effectively unlocked my device. It reported that it unlocked it, but then when I used it the second time to restore seccfg, it said “Device is protected”.
[09:56:23]: Loading payload from mt6765_payload.bin, 0x264 bytes
[09:56:23]: Kamakiri / DA Run
[09:56:23]: Trying kamakiri2..
[09:56:23]: Done sending payload...
[09:56:24]: Successfully sent payload: /opt/mtkclient/mtkclient/payloads/mt6765_payload.bin
[09:56:24]: Device is protected.
[09:56:24]: Device is in BROM mode. Trying to dump preloader.
[09:56:58]: Bootloader: unlock
[10:05:07]: Loading payload from mt6765_payload.bin, 0x264 bytes
[10:05:07]: Kamakiri / DA Run
[10:05:07]: Trying kamakiri2..
[10:05:07]: Done sending payload...
[10:05:07]: Successfully sent paylad: /opt/mtkclient/mtkclient/payloads/mt6765_payload.bin
[10:05:07]: Device is protected.
[10:05:07]: Device is in BROM mode. Trying to dump preloader.
[10:07:25]: test
[10:07:35]: write done!
I also went to see what fastboot was reporting after unlocking with MTKClient:
$ ./fastboot getvar unlocked
unlocked: no
Finished. Total time: 0.003s
However, that doesn’t necessarily matters, as I didn’t need to unlock it to switch slots.
Now, is there anything else I could try?
I was thinking of retrying to ADB sideload the stock OTA while the device is “maybe unlocked”.
I mean, by the look of it, it’s still locked, but I have limited trust in what my 2 inconsistent fastboot report.
So, assuming it is unlocked, is it safe to try ADB sideload while unlocked, or could this cause data loss?