acer chromebook c933 - enrolment problem

[darckreign1984]

DA0ZBCMB6D0 REV D
QR CODE NBHKD110100
3434BB47600


CHROMEBOOK its already enrolled, tried to edit myself the bios, reinstaled the os, without succes.

can someone guide me ? or edit this bios and remove my problem?

thanks

[Gcs_rma]

Bios +ec ec-bios.zip

[darckreign1984]

Bios +ec

thanks for help

i try only the bios bin / the laptop cant conect to internet after (wifi its recognized, i input the password , no internet) - cant reach google


ec flash - i dont know what chip to flash

[minhdigital]

DA0ZBCMB6D0 REV D
QR CODE NBHKD110100
3434BB47600


CHROMEBOOK its already enrolled, tried to edit myself the bios, reinstaled the os, without succes.

can someone guide me ? or edit this bios and remove my problem?

thanks

Send to you, try

[darckreign1984]

Send to you, try

with this file the laptop have internet, buth go again to enrolment process.

[Gcs_rma]

thanks for help

i try only the bios bin / the laptop cant conect to internet after (wifi its recognized, i input the password , no internet) - cant reach google


ec flash - i dont know what chip to flash

Write ID MAC Lan.

[darckreign1984]

Write ID MAC Lan.

wi-fi mac C8:B2:9B:CA:B9:76


i used this tutorial, i change SN, then reset. now its downloading an update.
"

1. After it boots into developer mode, press CTR+ALT+F2 the key, this should open a terminal
2. In the terminal type "chronos"
3. Then "sudo su"
4. Then "vpd -l"

On the displayed list you are looking for "serial_number"

To change the entry do the following:

vpd -s "serial_number"="enter your preferred serial"

After that type:

"dump_vpd_log --force"

Then verify that the serial numbers have changed by typing "vpd -l" again

Then reboot the chromebook by pressing REF+POW"



for sudo su did not work - only "sudo -i"

[darckreign1984]

bad type "sudo -l"

[osman68i]

try with your edited bios

you must create usb recovery disk.
and then

• Turn off your Chromebook
• Holding Esc + Refresh (F3) buttons while pressing Power button. Then release Power Button.

insert usb and install new os

[darckreign1984]

try with your edited bios

you must create usb recovery disk.
and then

• Turn off your Chromebook
• Holding Esc + Refresh (F3) buttons while pressing Power button. Then release Power Button.

insert usb and install new os

tested your solution. I get rid off developer mode.
it worked.

Can you help me with a second one?
thanks in advance

[Aries Molinar]

tested your solution. I get rid off developer mode.
it worked.

Can you help me with a second one?
thanks in advance

try this one GD25LQ128D(1.8v)@SOIC8or_unlocked.BIN.zip

File Name: GD25LQ128D(1.8v)@SOIC8or.BIN
Block Dev Mode: Enabled
Enrollment Check: Disabled

[darckreign1984]

try this one

File Name: GD25LQ128D(1.8v)@SOIC8or.BIN
Block Dev Mode: Enabled
Enrollment Check: Disabled

The laptop doesn't show anything on the screen and doesn't start. It seems that the backup BIOS is corrupted, as it doesn't start anymore with it. Additionally, the external SSD lost some data, and it appears that I have more corrupted data inluding the bios.

The laptop starts with the BIOS from post 2.

[osman68i]

tested your solution. I get rid off developer mode.
it worked.

Can you help me with a second one?
thanks in advance

your dump edited. you can compare and check the difference for the next time

[darckreign1984]

your dump edited. you can compare and check the difference for the next time

thanks for you efort - buth the laptop dont start with this file.

no image no nothing.

only file taht work its from post 2. I cant remove enrolment, or deactivate developer

[osman68i]

thanks for you efort - buth the laptop dont start with this file.

no image no nothing.

only file taht work its from post 2. I cant remove enrolment, or deactivate developer

test with this bios

[darckreign1984]

test with this bios

thanks, to bad its not working.

i dont have any explication.

[Aries Molinar]

thanks, to bad its not working.

i dont have any explication.

if you are using ch341a don't use test clip when backing up your BIOS it will end up backing up corrupted BIOS, it is best way is to desolder it and solder it on adapter

[darckreign1984]

if you are using ch341a don't use test clip when backing up your BIOS it will end up backing up corrupted BIOS, it is best way is to desolder it and solder it on adapter

i use tl866 II plus, and every time i remove the chip.


must be something related to incompatibility bios and ec information. (i think that bios backup was corupted when ssd lost partition, i recovered some data, but i think some off them are corupted, included this bios)

[darckreign1984]

the laptop start only with this bios. I lost original bios - ssd data lost/corupted backup

motherboard model ZBC
DA0ZBCMBD0 REV

QR CODE
NBHKD110100
34349617600

thanks again

[darckreign1984]

the laptop start only with this bios. I lost original bios - ssd data lost/corupted backup

motherboard model ZBC
DA0ZBCMBD0 REV

QR CODE
NBHKD110100
34349617600

thanks again

With this bios laptop start, in developer mode, I can't remove MDM enrolment.