[Q] Rooted and installed new rom but can't flash new kernel

OrionyX · Jun 30, 2012

Alright, so I've rooted my Sony Xperia Arc S (Lt8i) and installed the latest JJHybrid 3.1 ROM. I wanna install the Trinity ICS kernel.

So from what I know I need to have an unlocked bootloader. I unlocked my bootloader the first time using the fastboot cmd method. It showed that it worked. However, trying a few times to flash the new kernel, I keep getting the error that my phone is not rooted when it is! So I thought the bootloader was not locked and tried to unlock it again... This was what I got.

C:\Android Rooting\unlock xperia arc bootloaders\fastboot_with_Android_USB_file\
fastboot_with_Android_USB_file\fastboot> fastboot.exe -i 0x0fce getvar version
version: 0.3
finished. total time: 0.001s

C:\Android Rooting\unlock xperia arc bootloaders\fastboot_with_Android_USB_file\
fastboot_with_Android_USB_file\fastboot>fastboot.exe -i 0x0fce oem unlock 0x!36D
24885F3ADF806
...
(bootloader) Unlock phone requested
FAILED (remote: oem unlock 0xFFFFFFFFFFFFFFFF)
finished. total time: 0.002s

Using Flashtools to install the kernel fails too... I get the following

01/016/2012 03:16:14 - INFO - <- This level is successfully initialized
01/016/2012 03:16:15 - INFO - Flashtool Version 0.6.9.1 built on 2012-04-09 19:22:19
01/016/2012 03:16:15 - INFO - You can drag and drop ftf files here to start flashing them
01/016/2012 03:16:16 - INFO - Device connected in fastboot mode
01/016/2012 03:16:21 - INFO - Launching Fastboot Toolbox 1.0 by DooMLoRD
01/016/2012 03:16:21 - INFO - Device Status: FASTBOOT mode
01/016/2012 03:16:56 - INFO - Selected kernel (boot.img or kernel.sin): C:\Flashtool\firmwares\kernelboot.img
01/016/2012 03:16:56 - INFO - Flashing selected kernel
01/016/2012 03:16:56 - INFO - sending 'boot' (8366 KB)...
01/016/2012 03:16:56 - INFO - FAILED (remote: The Device must be rooted first)
01/016/2012 03:16:56 - INFO - finished. total time: 0.001s
01/016/2012 03:16:56 - INFO - FASTBOOT Output:
sending 'boot' (8366 KB)...
FAILED (remote: The Device must be rooted first)
finished. total time: 0.001s

01/016/2012 03:16:56 - INFO - Please check the log before rebooting into system
01/017/2012 03:17:03 - INFO - Finished Fastboot Toolbox

I'- very sure that I have root access... I have CWM installed.

I tried using the fastboot cmd dialouge to install the kernel but I get this message

C:\Android Rooting\unlock xperia arc bootloaders\fastboot_with_Android_USB_file\
fastboot_with_Android_USB_file\fastboot>fastboot flash boot kernelboot.img
sending 'boot' (8366 KB)...
FAILED (remote: The Device must be rooted first)
finished. total time: 0.001s

C:\Android Rooting\unlock xperia arc bootloaders\fastboot_with_Android_USB_file\
fastboot_with_Android_USB_file\fastboot>

Can someone tell me what is going on? What should I do? %r9:

noim · Jun 30, 2012

C:\Android Rooting\unlock xperia arc bootloaders\fastboot_with_Android_USB_file\
fastboot_with_Android_USB_file\fastboot> fastboot.exe -i 0x0fce getvar version
version: 0.3
finished. total time: 0.001s

C:\Android Rooting\unlock xperia arc bootloaders\fastboot_with_Android_USB_file\
fastboot_with_Android_USB_file\fastboot>fastboot.e xe -i 0x0fce oem unlock 0x!36D
24885F3ADF806
...
(bootloader) Unlock phone requested
FAILED (remote: oem unlock 0xFFFFFFFFFFFFFFFF)
finished. total time: 0.002s

on your 1st Quote it clearly states that the (bootloader) Unlock phone requested
FAILED....your bootloader still may b locked...

popthosegaskets · Jun 30, 2012

Yeah your bootloader is locked go unlock it, mate.

Sent from my LT18i using xda app-developers app

OrionyX · Jul 1, 2012

Thanks for the replies...

Here's the weird thing. The first time I tried unlocking my bootloader, it said the unlocking was successful. Since it was successful, I didn't save a log of it. Subsequent attempts at trying to unlock my bootloader again was totally unsuccessful and resulted in the error.

I've tried alot of guides around the forums but strangely none works. Could anyone of you suggest any method which you tried before that worked for you? In the meanwhile, I'll try to unlock my bootloader again

RamEsRock · Jul 1, 2012

OrionyX said:
Thanks for the replies...

Here's the weird thing. The first time I tried unlocking my bootloader, it said the unlocking was successful. Since it was successful, I didn't save a log of it. Subsequent attempts at trying to unlock my bootloader again was totally unsuccessful and resulted in the error.

I've tried alot of guides around the forums but strangely none works. Could anyone of you suggest any method which you tried before that worked for you? In the meanwhile, I'll try to unlock my bootloader again

There's the problem

You only need to unlock it once...

ArcMan09 · Jul 2, 2012

BL unlocking is very much easy.
Follow the instructions again carefully mate

.

Sent from my LT15i using Tapatalk 2

popthosegaskets · Jul 2, 2012

OrionyX said:
Thanks for the replies...

Here's the weird thing. The first time I tried unlocking my bootloader, it said the unlocking was successful. Since it was successful, I didn't save a log of it. Subsequent attempts at trying to unlock my bootloader again was totally unsuccessful and resulted in the error.

I've tried alot of guides around the forums but strangely none works. Could anyone of you suggest any method which you tried before that worked for you? In the meanwhile, I'll try to unlock my bootloader again

BL only need to be unlocked once.

Sent from my LT18i using xda app-developers app

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[Q] Rooted and installed new rom but can't flash new kernel

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noim

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