[RELEASE] Chromecast with Google TV 4K (sabrina) Bootloader Unlock

[p0werpl]

Incorrect, OTA images have it as dt.img, and no pointing changing it, it flashes to dtb either way.

The script inside the zip (flash-all.sh) looks for dtb.img instead of dt.img, not the unlock and repair scripts.

 

[npjohnson]

The script inside the zip (flash-all.sh) looks for dtb.img instead of dt.img, not the unlock and repair scripts.

ah, fixed.

 

[npjohnson]

The script inside the zip (flash-all.sh) looks for dtb.img instead of dt.img, not the unlock and repair scripts.

fixed thx

 

[p0werpl]

...apply all of the available OTAs via a python script.

I have been able to rw the dynamic partitions, edit them, and repack, but I haven't been able to merge an incremental ota into a full image. Can you share this python script if you don't mind? Thank you.

 

[npjohnson]

I have been able to rw the dynamic partitions, edit them, and repack, but I haven't been able to merge an incremental ota into a full image. Can you share this python script if you don't mind? Thank you.

GitHub - erfanoabdi/imgpatchtools: Patch img files with system.patch.dat, like OTA zip on PC

Patch img files with system.patch.dat, like OTA zip on PC - erfanoabdi/imgpatchtools

github.com

 

[dante_ov]

Is there anyone from Europe here who is interested in buying exploitable CCwGTV?

 

[espchl]

Is there anyone from Europe here who is interested in buying exploitable CCwGTV?

After "bricking" mine, I'd be interested. Any more info? thanks

 

[retyre]

A new update for sabrina (QTS1.220504.008) showed up a few days ago. If you're dying to update safely (i.e., without losing the unlock), PM me and I will send you the update to test-flash.

 

[npjohnson]

A new update for sabrina (QTS1.220504.008) showed up a few days ago. If you're dying to update safely (i.e., without losing the unlock), PM me and I will send you the update to test-flash.

Don't use that update zip.

I will build a fixed version.

 

[retyre]

Don't use that update zip.

I will build a fixed version.

I have already "fixed" it to create a new super.img (and an accompanying boot.img) from the latest update -- with the required changes to vendor.img and without the bootloader image. Boots fine and retains the unlock.

 

[npjohnson]

I have already "fixed" it to create a new super.img (and an accompanying boot.img) from the latest update -- with the required changes to vendor.img and without the bootloader image. Boots fine and retains the unlock.

Oh, you copied the .TA files over and all?

Was it a full OTA this time?

It was a delta last time which was a pain in the ass lol

 

[retyre]

Oh, you copied the .TA files over and all?

Was it a full OTA this time?

It was a delta last time which was a pain in the ass lol

Yes to the *.ta files. No, incremental again. You're on the money about the PITA part.

 

[npjohnson]

Yes to the *.ta files. No, incremental again. You're on the money about the PITA part.

Ugh.

Alright.

If you already did it mind sharing it here? I'll test it then link in the thread.

 

[retyre]

Ugh.

Alright.

If you already did it mind sharing it here? I'll test it then link in the thread.

Here. Contains only the updated partitions. If the super.img does not work, let me know and I'll upload the dynamic partitions separately.

 

[npjohnson]

Here. Contains only the updated partitions. If the super.img does not work, let me know and I'll upload the dynamic partitions separately.

Thx man. Will let ya know.

 

[grave35]

Thx man. Will let ya know.

When can I expect an update (QTS1.220504.008) from you?

 

[npjohnson]

When can I expect an update (QTS1.220504.008) from you?

When my work life calms down dude lol

 

[ForbEx]

Today i received my brand new device, Im sure that I cant use this method? Not powered yet..

 

[npjohnson]

Today i received my brand new device, Im sure that I cant use this method? Not powered yet..

Yeah, you're out of luck

 

[Deleted member 11959327]

When I installed a uart header in one of my sabrinas last year, I used this image from the unlock writeup as reference for the serial connections:

and installed the uart header thusly:

Today I was booting ubuntu on sabrina and trying to interrupt uboot (fred has bootdelay set at non-zero value). I couldn't interrupt uboot.

It turns out that I had RX connected to the wrong location. It actually is here:

The correct tx/rx locations also correspond to these locations on the edge connector:

Please excuse this post if this info has been mentioned previously.