[Q]SOLVED!! Lenovo Idepad K1 help getting Unrecoverable Bootloader Error (0x00000004) - Android Q&A, Help & Troubleshooting

Hello guys! I am very new here. I hope you can help me by any chance. As stated on the title itself I got a Lenovo ideapad K1 getting error such Unrecoverable Bootloader Error (0x0000004). This how it happens before I get the error.
I was currently running Kaschemme's custom rom for lenovo k1, CM10.1(android 4.2.2). I have this tablet where the physical home key is faulty I have read from some Lenovo k1 thread how to fix it. Then tried the method then it worked. The next morning, I used the K1 and its a bit acting up and started lagging then hang's up. I do a force shutdown then tried the method again to make the home key work while booting up until it reaches the homescreen then instatntly hung up. This happened 3x and I used the same previous method every time a boot up the tablet. For that 3rd time it never reached the homescreen I had a series of hanging at the Cyanogen boot animation and did a force shutdown and never tried using the method to make the home key work. After these series of hanging and force shutdown at the bootanimation, now it only boots up until the Lenovo logo and never passed that logo. After that I decided to reinstall Kaschemme's CM10.1 for lenovo k1 by entering to APX mode then when installing and everything was successful waited for my tablet to reboot but NO REBOOT happened, but instead I got the aforementioned error. I even tried to reinstall that same ROM and even, AOSP JB by Khanning, HC stock, HC rooted rom for Lenovo K1 and no luck at all.
Untill now I can't figure out what had just happened and how and why I got that silly error. Hope you guys, Lenovo k1 users especially , can help me specially to Kaschemme who did very good job in supporting the lenovo K1 users.
THANKS in advance

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Just in case in the future I might be able to solve this or somebody out there will be kind to help with my problem with my Lenovo k1
Just tonight, I tried to install the ROM CM10.1 by Kashchemme as soon as it reached the last .img to fully installed and before the device should reboot I tried to force shutdown before I see the ERROR message again. When I turned it on it immediatly went to APX mode without pressing the 2 volume buttons together with the power button. I tried to force shutdown it for 3 times and it always went to APX mode. Tried to install Rooted HC by Khanning, it reaches the last .img (userdata.img) to be installed successfully but still no luck and I got the additional information
failed executing command 25 NvError 0x120002
command failure: sync failed <bad data>
bootloader status: Bct Write Failed <code: 22> message: nverror:0x42004 <0x42004
> flags: 0
Pleae help what do these things mean and how can I recover my tablet. Is Jtag possible? how to JTAG this lenovo k1? please anybody share your knowledge. Thanks

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My LENOVO K1 is finally alive and working after so many attempts
Just an update
Right after my recent post tried to reboot my tablet. It boots up. The Lenovo Logo showed again and it proceeds and showed the NVIDIA logo then after that another Lenovo logo until it reaches the homescreen. Finally my tablet is FInally ALIVE so happy that I saved my old ROM's which brought my tablet back to life.
Now I don't know if I am running the rooted one or not because I don't see the SUPERUSER app on this HC rooted by Khanning.
If anyone of you might have the same problem with your LENOVO K1 try the way I did. Just read my previous posts. If you have any question that I might able to help jut let me know.
LONG LIVE ANDROID!!!!!

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I am having the same issue, while trying to flash Kaschemme's CM10.1 i got the "unrecoverable bootloader error (0x00000004). could you tell me where you got the version of HC that you were able to get running?

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trackid said:
I am having the same issue, while trying to flash Kaschemme's CM10.1 i got the "unrecoverable bootloader error (0x00000004). could you tell me where you got the version of HC that you were able to get running?
Click to expand...
Click to collapse
Look for the thread created by Kastella. Another K1 user. I post the link there. Sorry I can't post the link now just using my phone to reply. Hope you understand
Sent from my MT27i using XDA Premium HD app

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trackid said:
I am having the same issue, while trying to flash Kaschemme's CM10.1 i got the "unrecoverable bootloader error (0x00000004). could you tell me where you got the version of HC that you were able to get running?
Click to expand...
Click to collapse
Here is the link to that thread
http://forum.xda-developers.com/showthread.php?t=2575775
Sent from my MT27i using XDA Premium HD app

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Btw, which ROM where you using before you attempted to flash CM10,1?
Sent from my MT27i using XDA Premium HD app

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Thanks, I cant remember exactly which one it was since i flashed it over a year ago, but it was a jellybean Rom made by Khanning.

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How to solve the issue?
johnwilliam_a_k_a_trash said:
Hello guys! I am very new here. I hope you can help me by any chance. As stated on the title itself I got a Lenovo ideapad K1 getting error such Unrecoverable Bootloader Error (0x0000004). This how it happens before I get the error.
I was currently running Kaschemme's custom rom for lenovo k1, CM10.1(android 4.2.2). I have this tablet where the physical home key is faulty I have read from some Lenovo k1 thread how to fix it. Then tried the method then it worked. The next morning, I used the K1 and its a bit acting up and started lagging then hang's up. I do a force shutdown then tried the method again to make the home key work while booting up until it reaches the homescreen then instatntly hung up. This happened 3x and I used the same previous method every time a boot up the tablet. For that 3rd time it never reached the homescreen I had a series of hanging at the Cyanogen boot animation and did a force shutdown and never tried using the method to make the home key work. After these series of hanging and force shutdown at the bootanimation, now it only boots up until the Lenovo logo and never passed that logo. After that I decided to reinstall Kaschemme's CM10.1 for lenovo k1 by entering to APX mode then when installing and everything was successful waited for my tablet to reboot but NO REBOOT happened, but instead I got the aforementioned error. I even tried to reinstall that same ROM and even, AOSP JB by Khanning, HC stock, HC rooted rom for Lenovo K1 and no luck at all.
Untill now I can't figure out what had just happened and how and why I got that silly error. Hope you guys, Lenovo k1 users especially , can help me specially to Kaschemme who did very good job in supporting the lenovo K1 users.
THANKS in advance
Click to expand...
Click to collapse
Hi,
I have faced the same problem of Unrecoverable Bootloader Error (0x0000004) with exactly the same situation. However I can't find your way to solve the issue. Could you please teach me the way of solution?
Thanks!

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seananyoung said:
Hi,
I have faced the same problem of Unrecoverable Bootloader Error (0x0000004) with exactly the same situation. However I can't find your way to solve the issue. Could you please teach me the way of solution?
Thanks!
Click to expand...
Click to collapse
I think it was just a storke of luck. Because right now after several times of attempt I upgrade my K1 to Kaschemme's Rom my K1 always get bricked. I did it for about 7 times of reviving back to HC. Now my tablet is totally useless. I even tried to do the bake technique but still having error I might try it as well on Sunday. Just keep on pushing the HC and you will able to revive it soon. Good luck.
Sent from my GT-I9500 using XDA Premium HD app