[GUIDE][Kernel]ROOT 14.3.A.0.681

Coolpsi · Apr 15, 2014

coolmingli said:
I thought you have to be rooted when restore the TA partition backup file, that means you will always be on a custom kernel, after restore, bootloader relocks, kernel doesn't match, phone will not boot, how do people restore their TA backup file if they want their phone 100 stock. Is there a stock kernel that I can download?

I am not quit shure that root access is needed to restore the TA partition, but, giving it some thoughts it's probably right... If so, I think you would have to downgrade to .532 firmware - because I think it's the only one directly rootable -, then root the phone with one of the few tools available (note that in this case I think you would still conserve the official kernel), restore the TA partition and, finnally, flash the .757 firmware. Anyway, let's wait for LordManhattan answer.

LordManhattan · Apr 16, 2014

Coolpsi said:
Hi "Kepler" man! Correct me if I am wrong, if someone decides to flash the .757 ftf file - without flashing any additional custom kernel - it would be possible to restore the TA partition, right? Cheers!

Yup, that'll work just fine.

Sent fra min C6833 via Tapatalk

coolmingli · Apr 16, 2014

LordManhattan said:
Yup, that'll work just fine.

Sent fra min C6833 via Tapatalk

How about if I restore my TA file, also relock the bootloader , then go directly into flashmode, flash the stock firmware, reboot.
Will that work? It save the trouble for downgrade. Thanks

encryptioncsta · Apr 16, 2014

when can we expect the locked bootloader version?

blueether · Apr 16, 2014

about 3 weeks ago

assuming you just mean root on a locked bootloader on 681, if not then you need to practice explaining what you want a bit better

encryptioncsta · Apr 16, 2014

wheres the locked bootloader version located?

---------- Post added at 04:08 AM ---------- Previous post was at 04:06 AM ----------

all i see is only for locked bootloaders

---------- Post added at 04:18 AM ---------- Previous post was at 04:08 AM ----------

can you please provide a link to this locked bootloader version your talking about please

blueether · Apr 16, 2014

I'm sure this one will work on a locke BL (uses [NUT]'s method) http://xdaforums.com/showthread.php?t=2687848 although it is for 681

iBuzman · Apr 16, 2014

Deleted

coolmingli · Apr 16, 2014

abuihsan said:
hi Jackie, today I update my 6802 via SUS then I unlocked BL and then try this root method and it works.

then I restored TA to get locked BL, flashed stock 6802 kernel with flashtool and all good, still fully root, only lost recovery : D

Hi, this is exactly what I want to do, would you please tell me where you get the stock 6802 kernel? what firmware version is it from? Thanks

blueether · Apr 16, 2014

coolmingli said:
Hi, this is exactly what I want to do, would you please tell me where you get the stock 6802 kernel? what firmware version is it from? Thanks

any FTF will do, but if you really want want 'stock' then flash the kernel from a c6802 .757 FTF
@abuihsan Do you still have write for root, or just read access?

coolmingli · Apr 16, 2014

blueether said:
any FTF will do, but if you really want want 'stock' then flash the kernel from a c6802 .757 FTF
@abuihsan Do you still have write for root, or just read access?

Hi, I am on 757 rooted with Jackie's method, I am not going to install custom ROM, therefor I don't need recovery, my bootloader is unlocked and I have TA backup file. How did you extract the kernel out from the c6802 757 ftf? thank you!

blueether · Apr 16, 2014

coolmingli said:
Hi, I am on 757 rooted with Jackie's method, I am not going to install custom ROM, therefor I don't need recovery, my bootloader is unlocked and I have TA backup file. How did you extract the kernel out from the c6802 757 ftf? thank you!

On Stock 4.4.2 there is no pressing need to have a locked bootloader, and recovery is ALWAYS good to have.

coolmingli · Apr 16, 2014

blueether said:
On Stock 4.4.2 there is no pressing need to have a locked bootloader, and recovery is ALWAYS good to have.

sure, at first, I thought I will lose X Reality and Track ID, now after I played it around for while, the Track ID works, I think the X reality also works,
I may just leave the way it is then, this thing is taking too much of my time away, I will flash the dual recovery 757 kernel when it becomes available,
thanks mate.

Coolpsi · Apr 16, 2014

coolmingli said:
How about if I restore my TA file, also relock the bootloader , then go directly into flashmode, flash the stock firmware, reboot.
Will that work? It save the trouble for downgrade. Thanks

LordManhattan confirmed my suspicions, if you want your phone to be as stock again, you only have to flash the .757 firmware (without flashing additional kernel) and then restore the TA partition wich will probably also relock your bootloader, if not, you will have to do it manually, for example, with the flashtool.

---------- Post added at 09:02 AM ---------- Previous post was at 09:00 AM ----------

coolmingli said:
sure, at first, I thought I will lose X Reality and Track ID, now after I played it around for while, the Track ID works, I think the X reality also works,
I may just leave the way it is then, this thing is taking too much of my time away, I will flash the dual recovery 757 kernel when it becomes available,
thanks mate.[/QUOTE

Am I missing something here, or the dual recovery .757 kernel is already available!?!

abuihsan · Apr 16, 2014

coolmingli said:
Hi, this is exactly what I want to do, would you please tell me where you get the stock 6802 kernel? what firmware version is it from? Thanks

blueether said:
any FTF will do, but if you really want want 'stock' then flash the kernel from a c6802 .757 FTF
@abuihsan Do you still have write for root, or just read access?

As for kernel I used 6802 FTF with flashtool (WIPE: unchecked all. EXCLUDE: checked all but LEAVE the kernel UNCHECKED). But that was on .681 and yes not partial root. It was full root.
I tried those method on .757 and only got partial root.
So maybe you want to try THIS METHOD. Please read carefully. It works for me but not for someone who also tried.

On both method I used Indonesian c6802 FTF. And the 757.img is from jackie's too (from related thread).

coolmingli · Apr 16, 2014

abuihsan said:
As for kernel I used 6802 FTF with flashtool (WIPE: unchecked all. EXCLUDE: checked all but LEAVE the kernel UNCHECKED). But that was on .681 and yes not partial root. It was full root.
I tried those method on .757 and only got partial root.
So maybe you want to try THIS METHOD. Please read carefully. It works for me but not for someone who also tried.

On both method I used Indonesian c6802 FTF. And the 757.img is from jackie's too (from related thread).

I dont kknow you can do that, this is smart, exclude everything except the kernel, but I am not sure if it will work, can someone confirm?

abuihsan · Apr 16, 2014

coolmingli said:
I dont kknow you can do that, this is smart, exclude everything except the kernel, but I am not sure if it will work, can someone confirm?

Please be carefull. Flash exclude everything except the kernel was the last step to get stock kernel back (because after 'fastboot flash boot .img' it will make the phone run with custom kernel) so the phone will boot after restoring TA.

EDIT:
@coolmingli, please make sure to read a warning below this post.
Thanks @blueether.

blueether · Apr 16, 2014

be carefull just flashing kernel with flashtool, that is what created several hundred z1 and a few ZU bricks.

Unless you know what you are doing always flash... http://xdaforums.com/showthread.php?t=2574764

So always be sure, when flashing parts of a 290 or 136 ftf, you flash, at the very least:
KERNEL, ELABEL, BOOTBUNDLE, AND BASEBAND so that there is no risk of a mismatch.
Let's refer to it as the KEBB group. Easy to remember

Make sure that these all match first before flashing just a kernel. If you started with a full flash of the 757 FTF you will be ok

coolmingli · Apr 17, 2014

Hi, I know this kernel has dual recovery, but every time I boot in into recovery mode it is the TWRP, can someone enlighten me how do I switch to CWM? Thanks

---------- Post added at 07:04 AM ---------- Previous post was at 06:55 AM ----------

blueether said:
be carefull just flashing kernel with flashtool, that is what created several hundred z1 and a few ZU bricks.

Unless you know what you are doing always flash... http://xdaforums.com/showthread.php?t=2574764

Make sure that these all match first before flashing just a kernel. If you started with a full flash of the 757 FTF you will be ok

I am learning how to extract kernel from ftf now, it is doable for me I think, I will extract the kernel from the same ftf that I flashed to my phone.

Thanks you all.

blueether · Apr 17, 2014

coolmingli said:
Hi, I know this kernel has dual recovery, but every time I boot in into recovery mode it is the TWRP, can someone enlighten me how do I switch to CWM? Thanks

---------- Post added at 07:04 AM ---------- Previous post was at 06:55 AM ----------

I am learning how to extract kernel from ftf now, it is doable for me I think, I will extract the kernel from the same ftf that I flashed to my phone.

Thanks you all.

If you already have the FTF installed/flashed there isn't a problem.

Also you dont have to extract the kernel from the ftf to just flash that, just use flashtool, select the FTF, make sure no wipes are selected [top box] and then exclude everything except what you want to flash - so in this case just have the kernel un-ticked

[GUIDE][Kernel]ROOT 14.3.A.0.681

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