Wiped tablet, tried to install CM. Failed because wifi tablet thinks it is castor.

spanielhead · Aug 5, 2014

I wiped my device and now can't install CM because it thinks it is castor and not castor_windy. It is a wifi z2 tablet.

I used tool from this thread to gain root. After I used root checker basic to check I was rooted and it said I was.
http://xdaforums.com/showthread.php?t=2784900

I used tool from this thread to install custom recovery, I believe successfully. I was able to reboot into recovery afterwards.
http://xdaforums.com/showthread.php?t=2794175

To try and install CM I tried to follow the instructions in this post.
http://xdaforums.com/showpost.php?p=53994500&postcount=1

To do 4&5 in twrp, I wiped cache, system and dalvik. I got the problem in the following picture (pictures are all links because I couldn't work out how to get them small enough to attach).
https://drive.google.com/file/d/0BxoU7oR5AJUeVnE4LXpEd0t6c0k/edit?usp=sharing
It eventually formatted all three.

I then tried to install CM, PA gapps, and recovery (as suggested in the recovery thread to make sure keep recovery after reboot). This happened.
https://drive.google.com/file/d/0BxoU7oR5AJUeT2pkZE53UUdRUDA/edit?usp=sharing

I didn't make a backup in advance because I am an idiot. I do have TA backed up.

What did I do wrong and how can I fix it please?

BabelHuber · Aug 5, 2014

If I understand you correctly, you have tried too flash CM without unlocking your bootloader first.

As far as I know, this is not possible: Due to the locked bootloader, the CM Kernel cannot be installed and hence CM won't work anyways.

With locked bootloader, you can only flash stock-based ROMs which share the Kernel with the original ROM.

You can use flastool to flash a TFT (stock firmware), then your tablet should work again.

For flashing a real CM which requires an unlocked bootloader see here: http://xdaforums.com/showthread.php?t=2708194

Bootloader unlocking: http://xdaforums.com/showthread.php?t=2747676

Have fun!

spanielhead · Aug 5, 2014

BabelHuber said:
If I understand you correctly, you have tried too flash CM without unlocking your bootloader first.

As far as I know, this is not possible: Due to the locked bootloader, the CM Kernel cannot be installed and hence CM won't work anyways.

With locked bootloader, you can only flash stock-based ROMs which share the Kernel with the original ROM.

You can use flastool to flash a TFT (stock firmware), then your tablet should work again.

For flashing a real CM which requires an unlocked bootloader see here: http://xdaforums.com/showthread.php?t=2708194

Bootloader unlocking: http://xdaforums.com/showthread.php?t=2747676

Have fun!

Thank you. You are exactly correct, I didn't unlock the bootloader first.

Would this flashtool work given I am currently in twrp and have no OS? If it would it is showing the links for the ROM for SGP511 and this is 512. Is it the same or do I need a different link for the ROM?
http://xperiafirmware.com/8-firmware/50-sony-xperia-z2-tablet-wi-fi-sgp512

Thanks. Trying to have fun.

BabelHuber · Aug 5, 2014

spanielhead said:
Thank you. You are exactly correct, I didn't unlock the bootloader first.

Would this flashtool work given I am currently in twrp and have no OS? If it would it is showing the links for the ROM for SGP511 and this is 512. Is it the same or do I need a different link for the ROM?
http://xperiafirmware.com/8-firmware/50-sony-xperia-z2-tablet-wi-fi-sgp512

Thanks. Trying to have fun.

Look at developer.sonymobile.com/unlockbootloader

IRRC you need to use fastboot to unlock the device. Afterwards, you can install Cm. If you are lucky you don't need to flash a stock ROM first.

spanielhead · Aug 5, 2014

BabelHuber said:
Look at developer.sonymobile.com/unlockbootloader

IRRC you need to use fastboot to unlock the device. Afterwards, you can install Cm. If you are lucky you don't need to flash a stock ROM first.

Thank you. Have unlock key from Sony now.

I am currently in recovery. Should I be able to reboot the bootloader from recovery and get into fastboot that way? (Reminder I have no OS.)

spanielhead · Aug 6, 2014

spanielhead said:
Thank you. Have unlock key from Sony now.

I am currently in recovery. Should I be able to reboot the bootloader from recovery and get into fastboot that way? (Reminder I have no OS.)

OK I tried this and bad things. Before the device was detected by my laptop, now it is not and it hangs at the sony logo and no led. Am I f***ed?

Elliander · Aug 6, 2014

spanielhead said:
OK I tried this and bad things. Before the device was detected by my laptop, now it is not and it hangs at the sony logo and no led. Am I f***ed?

I would suggest non Sony software anyway. I still have my bootloader, but since it's not allowed to be unlocked I can't use Sony software either.

BabelHuber · Aug 6, 2014

spanielhead said:
OK I tried this and bad things. Before the device was detected by my laptop, now it is not and it hangs at the sony logo and no led. Am I f***ed?

Not at all :good:

By long-pressing the power button (10 seconds or so) the tablet shuts down

Do the following:

- Get your Sony unlock key
- Install the Android SDK (Software Developers Kit) on your PC
- Install all necessary Xperia drivers (Google is your friend, don't remember where I got mine from)

Using fastboot:
- Connect your tablet to the PC while simultaneously pressing 'Volume up'. When the LED is blue you are in fastboot mode
- Unlock your tablet like described by Sony

- Install CWM from fastboot mode

- Reboot
- Enter recovery (press 'Volume up' when the LED is pink)

Copy files to tablet:

- Use the adb command line tool from Android SDK (in the same folder as fastboot)

Copy CM11 and GAPPs to tablet:

via Windows CMD: adb push filename.zip /sdcard/ROMs/filename.zip

- Flash CM11/ GAPPS via recovery

Done!

spanielhead · Aug 9, 2014

BabelHuber said:
Using fastboot:
- Connect your tablet to the PC while simultaneously pressing 'Volume up'. When the LED is blue you are in fastboot mode
- Unlock your tablet like described by Sony

Have restored device to stock, then rooted and installed custom recovery (as in original post).

Can't get into fastboot mode. Trying as stated above fails. Screen stays off with blue LED. Same thing happens if I reboot into bootloader via flashify or recovery. fastboot devices then does not detect device. It does for my phone so think that means fastboot works.

I must have missed something (again). Thank you for your patience.

Edit: bootloader now unlocked with flashtool.

Edit 2: Used flashtool to fastboot flash boot.img from M9 snapshot (was this my mistake, not CM10?). Now can only get into fastboot, can't get into recovery. Without recovery I require an img file of the rom, is that correct?

spanielhead · Aug 10, 2014

hasenbein1966 said:
I don't understand why you guys are so generous with your time and energy and write at length to help people who are too lazy and too careless to read properly and thus f*** up their devices...

I made a mistake, possibly multiple mistakes. I will continue to make mistakes. This forum is for people like me who don't know what they are doing to ask for help. No one has to offer that help. I am greatly appreciative when they do.

BabelHuber · Aug 10, 2014

spanielhead said:
Can't get into fastboot mode. Trying as stated above fails. Screen stays off with blue LED.

When the screen stays off with blue LED, you ARE in fastboot mode!

In case fastboot does not work, you haven't installed the according drivers on your PC.

spanielhead said:
Used flashtool to fastboot flash boot.img from M9 snapshot (was this my mistake, not CM10?). Now can only get into fastboot, can't get into recovery. Without recovery I require an img file of the rom, is that correct?

You must have done something wrong - I had no problems whatsoever.

Just try it again:

- Flash CWM as described
- Factory reset, format system, format data, wipe cache, wipe Dalvik cache (format data/media only if the internal SD-card should be wiped, too!)
- Flash the boot.img from the CM11 ZIP-file
- Enter CWM and use the adb push-command to flash CM11/GAPPs
- Install CM11 and GAPPs via recovery

Good luck :good:

elbello · Aug 14, 2014

BabelHuber said:
When the screen stays off with blue LED, you ARE in fastboot mode!

In case fastboot does not work, you haven't installed the according drivers on your PC.

You must have done something wrong - I had no problems whatsoever.

Just try it again:

- Flash CWM as described
- Factory reset, format system, format data, wipe cache, wipe Dalvik cache (format data/media only if the internal SD-card should be wiped, too!)
- Flash the boot.img from the CM11 ZIP-file
- Enter CWM and use the adb push-command to flash CM11/GAPPs
- Install CM11 and GAPPs via recovery

Good luck :good:

Did you ever manage to install cm11?
I have the same error, device thinks is Castor when its a sgp512. I tried both and soft bricked it, got out, rooted it again and still have the same error. I did unlock the bootloader, i am rooted, I know how to go into fastboot, flashmode, cwm, twrp, etc. But CM11 does not work!
Very frustrating.

Any ideas?
anyone?

Edit: Problem was that I wasnt flashing the kernel first as stated here: http://wiki.cyanogenmod.org/w/Install_CM_for_castor_windy

wintermute000 · Aug 17, 2014

Are you saying you missed this one

fastboot -i 0xfce flash boot boot.img

spanielhead · Aug 19, 2014

BabelHuber said:
When the screen stays off with blue LED, you ARE in fastboot mode!

In case fastboot does not work, you haven't installed the according drivers on your PC.

You must have done something wrong - I had no problems whatsoever.

Just try it again:

- Flash CWM as described
- Factory reset, format system, format data, wipe cache, wipe Dalvik cache (format data/media only if the internal SD-card should be wiped, too!)
- Flash the boot.img from the CM11 ZIP-file
- Enter CWM and use the adb push-command to flash CM11/GAPPs
- Install CM11 and GAPPs via recovery

Good luck :good:

I finally found some time to do this. Flashed boot.img using fastboot (didn't work using flashtool which I think was the most recent problem), flashed m9 in recovery, downloaded and adb pushed then flashed pa zero day GAPPS in recovery, and all is right with the world.
@BabelHuber how might I buy you a beer or coffee to thank you properly?

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Wiped tablet, tried to install CM. Failed because wifi tablet thinks it is castor.

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