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bootloader interface

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By scotty1223, Recognized Contributor on 27th June 2014, 12:08 AM
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i did a bit of searching,and it seems that the fastboot commands and such are pretty familiar. just had a couple of questions...

what modes are there of the bootloader interface?

what does the bootloader screen look like? a pic would be awsome

does unlocking the bootloader remove all securities(like htc s off) ?

thanks
 
 
28th June 2014, 12:03 AM |#2  
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Quote:
Originally Posted by scotty1223

i did a bit of searching,and it seems that the fastboot commands and such are pretty familiar. just had a couple of questions...

what modes are there of the bootloader interface?

what does the bootloader screen look like? a pic would be awsome

does unlocking the bootloader remove all securities(like htc s off) ?

thanks

When you boot into the bootloader on the device, it just goes into fastboot mode where it shows a cyanogenmod guy with the words fastboot under it.



As for unlocking the bootloader, after running fastboot oem unlock the device will reboot and wipe your data partition, but it seems to flip a flag in the bootloader so your device will show as tampered with the right fastboot command.

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28th June 2014, 01:31 AM |#3  
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if you run fastboot oem lock, it should remove any tampering warning right?
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28th June 2014, 01:41 AM |#4  
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Originally Posted by The Jack of Clubs

if you run fastboot oem lock, it should remove any tampering warning right?

No idea, I have yet to reset it as I don't want to deal with another data wipe.
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28th June 2014, 03:44 AM |#5  
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Awsome sauce,thanks a bunch for the reply. Does the device itself show any tampered or unlocked banners? Do we know if unlocking is removing all securities? ie,can you change any partition,install older firmware,etc?

Prtty used to HTC devices,but am considering picking one of these up

Sent from my HTC PG09410 using Tapatalk 2
28th June 2014, 03:58 AM |#6  
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Quote:
Originally Posted by scotty1223

Awsome sauce,thanks a bunch for the reply. Does the device itself show any tampered or unlocked banners? Do we know if unlocking is removing all securities? ie,can you change any partition,install older firmware,etc?

Prtty used to HTC devices,but am considering picking one of these up

Sent from my HTC PG09410 using Tapatalk 2

There are no banner changes when you unlock the device, and I believe that unlocking enables full flashing and downgrading similar to how nexus devices work. I am not sure about partition changes, but I know you can downgrade the firmware with no trouble as long as you have the .img files for fastboot.
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28th June 2014, 02:11 PM |#7  
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Once you're booted into that very minimalistic-looking bootloader, how can you get into recovery, reboot the phone, or access any other options?
28th June 2014, 02:37 PM |#8  
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Quote:
Originally Posted by treChoy

Once you're booted into that very minimalistic-looking bootloader, how can you get into recovery, reboot the phone, or access any other options?

In the bootloader there are no boot options, you will have to restart the device using fastboot or by holding the power button.

After its off, you just use the button combos to select the boot mode

Power + Volume Up is Fastboot Mode
Power + Volume Down is Recovery
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3rd July 2014, 12:24 AM |#9  
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Any news on the tamper flag?
From Nexus 5 I know there is a script to untamper it.
http://forum.xda-developers.com/show....php?t=2239421 (Nexus BootUnlocker script with tamperbit reset support)

Will something like that work to remove the flag?
8th July 2014, 05:09 PM |#10  
Quote:
Originally Posted by Polarfuchs

Any news on the tamper flag?
From Nexus 5 I know there is a script to untamper it.
http://forum.xda-developers.com/show....php?t=2239421 (Nexus BootUnlocker script with tamperbit reset support)

Will something like that work to remove the flag?

To implement this , we need to know 2 things

1) Partition name where the tamper bit is stored

2) Raw position number of stored bit of the partition in hex

Which I guess not known or not documented yet...
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10th July 2014, 11:24 PM |#11  
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@Mnt-XDA

I found it out by myself.
I wrote about it in that thread

http://forum.xda-developers.com/show...&postcount=395

The partition is aboot or mmcblk0p5
and the position of tamper flag is 0x000FFE14
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