Lock bootloader and remove modified flag from ADB

[jmanley69]

With my M8, I could issue these commands to lock & unlock the bootloader and remove the "modified" flag, but the lock command doesn't seem to work on the A9 and the bootloader still says modified. Does anybody know the commands that will work?

Unlock bootloader
{removed - don't do these commands}

Lock bootloader
{removed - don't do these commands}

remove "modified" flag
{removed - don't do these commands}

Edit - I removed the commands that you would issue on previous HTC models. I don't know if they will screw up your phone or not, but they will absolutely NOT work on the A9 and should not be issued to your phone!

 

[Ivanovic]

Are you sure that the flag is located within the mmcblk0p2 partition? I wanted to do the same but I m to lazy re-unlocking the bootloader, dumping the partitions and look for the flag.

Can you please dump the mmcblk0p2 or the p3 partitions and upload them somewhere? I will look for the flags

Στάλθηκε από το HTC One A9 μου χρησιμοποιώντας Tapatalk

 

[JochenP]

i've tested that and location of these characters are still the same. "HTCU" for unlocked and "HTCL" for relocked. But it don't work. i've replaced p2 after setting "HTCU" to "00000000" but after reboot it is reset/restored to "HTCO"

 

[Ivanovic]

Silly question, but are you s-off and rooted?

 

[JochenP]

Silly question, but are you s-off and rooted?

yes - s-off and rooted

 

[Ivanovic]

Schade. It should have worked. I will try on my friends phone, I left it S-OFFed when I converted it to retail from demo.

 

[JochenP]

it doesn't work for me:
List of devices attached
HT5B3BE06823 device

C:\Program Files\Minimal ADB and Fastboot>adb shell
[email protected]_hiaeuhl:/ $ su
echo -ne '\x00\x00\x00\x00' | dd of=/dev/block/mmcblk0p2 bs=1 seek=33796
4+0 records in
4+0 records out
4 bytes transferred in 0.010 secs (400 bytes/sec)
[email protected]_hiaeuhl:/ # exit
[email protected]_hiaeuhl:/ $ exit

C:\Program Files\Minimal ADB and Fastboot>


all seems ok but when i look into the patched file then everything is unchanged

----------------------------

kernel: lk
product: htc_hiaeuhl
version: 1.0
imei:
version-main: 1.10.401.7
boot-mode: download
version-baseband: [email protected]
version-bootloader: 1.0.0.0000
mid: 2PQ910000
cid: 11111111

Software status: Official
*** UNLOCKED ***
*** S-OFF ***


copy-paste error correction

 

[Ivanovic]

You said you also tried editing the partition with a hex editor and even uploading the edit file ?

Στάλθηκε από το HTC One A9 μου χρησιμοποιώντας Tapatalk

 

[JochenP]

yes - after hex-patching i copied file (after erasing original file) to /dev/block with total commander.
after reboot data was restored!!! so what is going on?
i have SuperSu 2.62-3 but it is curious that adb-patching doesn't work - file is -rw-
fastboot-flashing to pg1fs fails also (sending ok but flashing stalls)

 

[goodman_east]

You said you also tried editing the partition with a hex editor and even uploading the edit file ?

Στάλθηκε από το HTC One A9 μου χρησιμοποιώντας Tapatalk

that partition has write protection

 

[Ivanovic]

Maybe we need something like that http://forum.xda-developers.com/one-m9/general/how-to-disable-remaining-write-t3171735

Στάλθηκε από το HTC One A9 μου χρησιμοποιώντας Tapatalk

 

[alray]

yes - after hex-patching i copied file (after erasing original file) to /dev/block with total commander.
after reboot data was restored!!! so what is going on?
i have SuperSu 2.62-3 but it is curious that adb-patching doesn't work - file is -rw-
fastboot-flashing to pg1fs fails also (sending ok but flashing stalls)

Are you doing it when booted in the OS? Try using an adb shell from custom recovery, maybe the pgfs partitions are now write protected by the stock kernel, shouldn't be an issue when in recovery since the kernel isn't booted yet.
Can you share your p6 too?

 

[JochenP]

mmcblk0p2 userrights: -rw--- no problem to overwrite or delete

p6: http://www94.zippyshare.com/v/QIb5IVJy/file.html

good idea to adb from recovery - i will test soon

---------- Post added at 04:59 PM ---------- Previous post was at 04:44 PM ----------

adb from recovery - no success:

:\Program Files\Minimal ADB and Fastboot>adb shell
# ←[6nsu
sbin/sh: su: not found
# ←[6necho -ne '\x00\x00\x00\x00' | dd of=/dev/block/mmcblk0p2 bs=1 seek=8404
+0 records in
+0 records out
bytes (4B) copied, 0.047038 seconds, 85B/s
# ←[6nexit

please gimme a tipp

ups - i adressed with hex - (but that's not the reason for writing fails)

---------- Post added at 05:39 PM ---------- Previous post was at 04:59 PM ----------

okay: i used the revovery filemanager, copied file p2 to external-sd, hexedit this file ( overwites "HCTO" with 00000000) and recopy this file to dev/block.
all within recovery
NO success: i reboot to download (unlocked) - bootloader - recovery and copied file one more time to sd for editing - it contains again "HTCU" :crying:

 

[goodman_east]

mmcblk0p2 userrights: -rw--- no problem to overwrite or delete

p6: http://www94.zippyshare.com/v/QIb5IVJy/file.html

good idea to adb from recovery - i will test soon

---------- Post added at 04:59 PM ---------- Previous post was at 04:44 PM ----------

adb from recovery - no success:

:\Program Files\Minimal ADB and Fastboot>adb shell
# ←[6nsu
sbin/sh: su: not found
# ←[6necho -ne '\x00\x00\x00\x00' | dd of=/dev/block/mmcblk0p2 bs=1 seek=8404
+0 records in
+0 records out
bytes (4B) copied, 0.047038 seconds, 85B/s
# ←[6nexit

please gimme a tipp

ups - i adressed with hex - (but that's not the reason for writing fails)

---------- Post added at 05:39 PM ---------- Previous post was at 04:59 PM ----------

okay: i used the revovery filemanager, copied file p2 to external-sd, hexedit this file ( overwites "HCTO" with 00000000) and recopy this file to dev/block.
all within recovery
NO success: i reboot to download (unlocked) - bootloader - recovery and copied file one more time to sd for editing - it contains again "HTCU" :crying:

I have did this a week ago.
It seems that partition has write protection.
I dumped files of this partition from both locked and unlocked A9. other difference was found.

java card id is there, i cannot share the original pictures.
if necessary, i can post the differences.

 

[JochenP]

yes i believe you are right but a further flag is also possible and hboot corrects this "HTCU" flag in p2 during boot...
rather not: from within recovery i have tried to MOVE p2 to SD-Card and i end's with: Error=1 (file cannot moved)

please post differences to dig deeper. how do i eliminate the write protection?

 

[Ivanovic]

I believe that this has something to do with the extra write protection in p32 introduced in the M9 even on S-OFF phones

Στάλθηκε από το HTC One A9 μου χρησιμοποιώντας Tapatalk

 

[JochenP]

ah okay, you mean "Scotty1223 disable remaining write protection on m9 after s off" keeps the solution...

 

[Ivanovic]

Can you verify that the same data exists on p32 in A9?

Στάλθηκε από το HTC One A9 μου χρησιμοποιώντας Tapatalk

 

[JochenP]

i have post some pattern of p32 and hope they will match...

 

[jmanley69]

Sorry.. I went out of town and was away from a computer after I posted the question.

I am indeed s-off and rooted.

I used http://forum.xda-developers.com/one-m9/general/how-to-disable-remaining-write-t3171735 method and entered
{removed - don't do these commands}
then rebooted.

After it came back up, I entered
{removed - don't do these commands}
to remove the modified flag, but when I went to bootloader it still says modified.

I also tried
{removed - don't do these commands}
to lock the bootloader, but when I booted into bootloader, it was still locked.

I'd be happy to upload anything that might help, just give me some direction to do so.