missing OEM UNLOCK on Oreo on C9 Pro

noknok79

Senior Member
Dec 9, 2013
57
9
0
Hello people,

I been almost crazy to look for howto's on how to restore OEM UNLOCK on my C9 Pro after upgrading from 7.1.1. To 8.0

Could anyone with good heart please point me *working howto* how to restore it? All of the howto's for Samsung S9 etc seems not working for my C9 Pro.

Thank you mates in advance!
Merry Christmas everyone.
 

noknok79

Senior Member
Dec 9, 2013
57
9
0
Ive done this so many times, from 7.1.1 OEM UNLOCK is appearing, after upgrading/flashing via Odin to 8.0, OEM UNLOCK is missing.

Or I am missing other way of upgrading to Oreo, you might share it.

Thank you mate!
 
Last edited:

YusufGKT

Member
Sep 24, 2018
10
0
0
No on oreo you cant see that option thats only on 7.1.1 and before you need to enable and upgrade to oreo after upgrade to oreo that will still be missing but that is enabled
 

noknok79

Senior Member
Dec 9, 2013
57
9
0
No on oreo you cant see that option thats only on 7.1.1 and before you need to enable and upgrade to oreo after upgrade to oreo that will still be missing but that is enabled
if it is enable, then why i am failing to install TWRP on OREO? I badly need TWRP/Recovery access for me to install Dolby Atmos, my phone volume is weak, and Dobly Atmos improves it.

or is there any way to install Dolby Atmos without accessing the TWRP/Recovery?

thank you.
 

YusufGKT

Member
Sep 24, 2018
10
0
0
if it is enable, then why i am failing to install TWRP on OREO? I badly need TWRP/Recovery access for me to install Dolby Atmos, my phone volume is weak, and Dobly Atmos improves it.

or is there any way to install Dolby Atmos without accessing the TWRP/Recovery?

thank you.
I think you are doing clean installation you need to upgrade and idk if it will help but i had installed twrp on 7.1.1 and installed dm verity zip and updated to oreo
 

noknok79

Senior Member
Dec 9, 2013
57
9
0
I think you are doing clean installation you need to upgrade and idk if it will help but i had installed twrp on 7.1.1 and installed dm verity zip and updated to oreo
yes, i'm doing clean install via Odin. the update to Oreo is via OTA? the dm verity.zip will make it update to OREO via Over-The-Air?
 

noknok79

Senior Member
Dec 9, 2013
57
9
0
I think you are doing clean installation you need to upgrade and idk if it will help but i had installed twrp on 7.1.1 and installed dm verity zip and updated to oreo
you would mind sharing the dm-verity.zip file/link that will allowed to upgrade Oreo via OTA?

thank you mate!
 

noknok79

Senior Member
Dec 9, 2013
57
9
0
up! I was able to make the OEM UNLOCK features ON, on a combination flash. BP file from HK 7.1.1, AP file fro INDIA 8.0.0 and the CP and CSC are from HK 8.0.0 all STOCK rom files, with C900F as signature firmware.

I was able to run smoothly with my C9 Pro SM-C9000, but it bootloop when i flashed all TWRP both for Nougat and Oreo via ODIN.

can you please guide me to how to root my combined firmware, I need to install Magisk.

thank you!
 

usm_usm

New member
May 22, 2019
4
1
0
c9000 oem unlok

hello friend
i have try all the method to unlock oem
adb method -not work
twrp -not work
i have search too many software - not work
update manually by changing the date - not work

i want to root my c9 pro
without oem unlock odin will not work
is there any help :confused:
 

TPD-21

Senior Member
Feb 6, 2014
938
548
123
Southern Borneo Island

usm_usm

New member
May 22, 2019
4
1
0
oem is missing

my friend i have try all the method
but oem is missing
twrp .i have install from google store but error (package installer keeps stopping close app)

i have try adb to install twrp and superUS .but it show ( waiting for the devices ) .. all other commends are working but install app and oem unlock is not working ..
is there any solution ?
 
Last edited:

usm_usm

New member
May 22, 2019
4
1
0
problem solve

my friend i have try all the method
but oem is missing
twrp .i have install from google store but error (package installer keeps stopping close app)

i have try adb to install twrp and superUS .but it show ( waiting for the devices ) .. all other commends are working but install app and oem unlock is not working ..
is there any solution ?
i have down grade and oem back
 
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