How To Guide Flashing ColorOs 12 on Oppo reno6 5G CPH2251

[Cosmicsh]

In that case you just need to flash preloader.bin. if you need more help, reach out to me https://t.me/nandbabai

how please help me this is my primary phone.. That link is not opening

 

[Cosmicsh]

I was able to reenter brom mode. Now I'm reflashing again.

Is that resolve?

 

[Cosmicsh]

how please help me this is my primary phone.. That link is not opening

I flash more that 5 times but not signs to power up.. Even no recovery no charging wiget

 

[macslui]

I flash more that 5 times but not signs to power up.. Even no recovery no charging wiget

The problem is that now you do not have preloader on your phone.
You have to flash preloader using SP Flash Tool version 5.2148.

Prior to flash preloader with the tool you have to perform:

python mtk payload (to prepare phone to be flashed with SP Flash Tool)

In flash tool you need only Scatter Loading File and your previously backedup preloader.bin

In my case, I've changed also Dowload Agent using the one provided by mtk client (path \mtkclient-main\mtkclient\Loader) -> MTK_AllInOne_DA_5.2152.bin

 

[Nand kumar]

The problem is that now you do not have preloader on your phone.
You have to flash preloader using SP Flash Tool version 5.2148.

Prior to flash preloader with the tool you have to perform:

python mtk payload (to prepare phone to be flashed with SP Flash Tool)

In flash tool you need only Scatter Loading File and your previously backedup preloader.bin

In my case, I've changed also Dowload Agent using the one provided by mtk client (path \mtkclient-main\mtkclient\Loader) -> MTK_AllInOne_DA_5.2152.bin

I have updated the tutorial with step5 flash prelooader if required.

 

[Cosmicsh]

The problem is that now you do not have preloader on your phone.
You have to flash preloader using SP Flash Tool version 5.2148.

Prior to flash preloader with the tool you have to perform:

python mtk payload (to prepare phone to be flashed with SP Flash Tool)

In flash tool you need only Scatter Loading File and your previously backedup preloader.bin

In my case, I've changed also Dowload Agent using the one provided by mtk client (path \mtkclient-main\mtkclient\Loader) -> MTK_AllInOne_DA_5.2152.bin

Yes thanks for advice but after nandbabai add other extra method and he helped me personaly with files my problem was resolve and not at 11.3 my bettry backup, and speed is also increased like new... Hope this helped others tooo..

 

[macslui]

Yes thanks for advice but after nandbabai add other extra method and he helped me personaly with files my problem was resolve and not at 11.3 my bettry backup, and speed is also increased like new... Hope this helped others tooo..

Yes, he helped me too. Now I really want now a cos12 with performance of COS11.3!

 

[__arvind.106]

Hey Guys,
Many users downgraded their ColorOs12 to ColorOs11.3 on oppo reno6 5G device due to many bugs on it, they want to install ColorOs12 but they are not getting OTA update, they are wandering how can they install ColorOs 12 back on their phone, So, here I have come up with a method to directly flash ColorOS12.

Note: Data will(or might) be erased in this method so please take backup of you data on phone.

This has been tested on Indian version, I am not sure if it will work for other countries.

I strongly recommend to take full firmware backup using method below before proceeding

https://xdaforums.com/t/backup-full...sing-mtk-client-oppo-reno6-5g-mt6877.4406069/

Step1: Pre-requisite -Installing required drivers and setup
From link below download drivers and setup.

Install mediatek driver.
Install python (during installation of python please select "install for all user" from customization and tick add path to system variable)

install usbdk.
download extarct Mtk client tool.
go to folder where you extract mtk client
View attachment 5541629
open cmd here and run below command

cd mtkclient
pip3 install -r requirements.txt

In default setting it takes 2 hour to flash but after change it takes 13 min. If you want to increase flashing speed then open mtk_daxflash.py file from library folder, search "dsize = min(length, 0x200)" and replace it with "dsize = min(length, 0x2004)" , save and close the file.
You need to close command prompt in order to take effect of change.

Reference(https://github.com/bkerler/mtkclient/issues/271)

New Qcom Mtk Driver V3.0.5.1.rar | by TUSER HP for Generic Device/Other

Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.

androidfilehost.com

Download Python

The official home of the Python Programming Language

www.python.org

GitHub - bkerler/mtkclient: MTK reverse engineering and flash tool

MTK reverse engineering and flash tool. Contribute to bkerler/mtkclient development by creating an account on GitHub.

github.com

Releases · daynix/UsbDk

Usb Drivers Development Kit for Windows. Contribute to daynix/UsbDk development by creating an account on GitHub.

github.com

Step2: Download and extract the ColorOs 12 firmware

View attachment 5555715

CPH2251_11_C.27_ColorOS12_Android12_Latest.rar

drive.google.com

Step3: Flash the firmware
on cmd type below command to flash the firmware
python mtk wl "ROM location full path"

it will wait for devices.. Power off the phone, wait 10 sec then press vol up + vol down together and then plug the usb cable.
Once device detected , it will display devices information and start flashing
View attachment 5541639

View attachment 5541641

View attachment 5541645

While flashing it will dump the preloader, this file is very important so, please keep this file safely. this file may require in future.
View attachment 5541661

Step4: Boot the phone
Once flashing completed, press vol up + power button together for 30 sec. Wait for device to boot.

Step5: Flashing the preloader.bin (only if required)
In case, even after flashing completed successfully but some time device does not boot, only black screen, no charging sign either then don't panic, device has entered into emergency download mode, if you face the same then it's time to flash preloader.bin file. Follow below steps

1) download SP flash tool specific version v5.2148. (https://androidmtk.com/smart-phone-flash-tool)
2) download attached preloader.bin, scatter file and auth file from link below and place all these files at same folder.

MT6877_flashing_preloader.zip

drive.google.com

3) open sp flash tool, select download agent files from mtk folder as shown on image and load scater file and auth files respectively.
View attachment 5581171
4) In cmd run command "python mtk payload". Now press and hold vol+ vol- or all the buttons together, it should show payload sent successfully.
5) Now in sp flash tool click on Download button, it should flash the preloader successfully.
6) once preloader is flash successfully you can turn on the phone by pressing vol+ and power button together for 20 sec. If attached preloader does't flash then you can try flashing your device backup preloader.bin created/shown on step3.

so by this way we directly flashed ColorOS 12 on oppo reno6 5G.

Tips: If due to some reason flashing did not completed successfully then please press vol up and power button together for 30-40 sec to boot the phone (exit the brom mode).


Disclaimer: I have tested this method on my phone, it's 100% working but I will not responsible if damage any damage happens to your device while doing this. So do it at your own risk.

Excellent Brother i understand easily this process and i does successfully this i like your post and we love you brother

 

[__arvind.106]

I have successfully processed this. I am now in Color os 12 with help Nand bro

 

[adriano84sa]

ho bisogno di aiuto, questo è il mio problema
There is a solution?

 

[Nand kumar]

View attachment 5747321

ho bisogno di aiuto, questo è il mio problema
There is a solution?

Are you on windows 11 or 10? My guide was tested on windows 10 . I don't know if it will work on 11 .
Please install all the drivers properly

 

[adriano84sa]

Sei su Windows 11 o 10? La mia guida è stata testata su Windows 10. Non così se funzionerà su 11 .
Si prega di tutti i driver correttiment

Sei su Windows 11 o 10? La mia guida è stata testata su Windows 10. Non so se funzionerà su 11 .
Si prega di installare tutti i driver correttamente

Windows 11. Domani installo Windows 10 apposta e provo

 

[adriano84sa]

Are you on windows 11 or 10? My guide was tested on windows 10 . I don't know if it will work on 11 .
Please install all the drivers properly

No work for me, in windows 10 too.
I installed everything there was to install and I gave all the commands there was to give.

when I start the command everything is waiting for the phone, I press the two volume keys and insert the cable, but the error is always this

 

[adriano84sa]

View attachment 5749469
View attachment 5749477

Nessun lavoro per me, anche in Windows 10.
Ho installato tutto quello che c'era da installare e ho dato tutti i comandi che c'era da dare.

quando avvio il comando tutto attende il telefono, premo i due tasti del volume e inserisco il cavo, ma l'errore è sempre questo

c'è qualche operazione preliminare che dovrei fare sul mio telefono?

 

[Nand kumar]

Try Disabling driver signature and then install mediatek drive. You can search on Google how to do that

 

[Nand kumar]

Hi if nothing work then you can try in linux. Please see the official github guide for mtk client.

GitHub - bkerler/mtkclient: MTK reverse engineering and flash tool

MTK reverse engineering and flash tool. Contribute to bkerler/mtkclient development by creating an account on GitHub.

github.com

 

[ronello]

Does anybody have the Color OS 13 beta version CPH2251.11.F42? i observed that the ColorOS 13 official just disabled 5G Dual Sim dual Standby that the beta in reference had in developer options.

 

[ooze0928]

Is there a video tutorial?

 

[alexrayx]

Hey Guys,
Many users downgraded their ColorOs12 to ColorOs11.3 on oppo reno6 5G device due to many bugs on it, they want to install ColorOs12 but they are not getting OTA update, they are wandering how can they install ColorOs 12 back on their phone, So, here I have come up with a method to directly flash ColorOS12.

Note: Data will(or might) be erased in this method so please take backup of you data on phone.

This has been tested on Indian version, I am not sure if it will work for other countries.

I strongly recommend to take full firmware backup using method below before proceeding

https://xdaforums.com/t/backup-full...sing-mtk-client-oppo-reno6-5g-mt6877.4406069/

Step1: Pre-requisite -Installing required drivers and setup
From link below download drivers and setup.

Install mediatek driver.
Install python (during installation of python please select "install for all user" from customization and tick add path to system variable)

install usbdk.
download extarct Mtk client tool.
go to folder where you extract mtk client
View attachment 5541629
open cmd here and run below command

cd mtkclient
pip3 install -r requirements.txt

In default setting it takes 2 hour to flash but after change it takes 13 min. If you want to increase flashing speed then open mtk_daxflash.py file from library folder, search "dsize = min(length, 0x200)" and replace it with "dsize = min(length, 0x2004)" , save and close the file.
You need to close command prompt in order to take effect of change.

Reference(https://github.com/bkerler/mtkclient/issues/271)

New Qcom Mtk Driver V3.0.5.1.rar | by TUSER HP for Generic Device/Other

Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.

androidfilehost.com

Download Python

The official home of the Python Programming Language

www.python.org

GitHub - bkerler/mtkclient: MTK reverse engineering and flash tool

MTK reverse engineering and flash tool. Contribute to bkerler/mtkclient development by creating an account on GitHub.

github.com

Releases · daynix/UsbDk

Usb Drivers Development Kit for Windows. Contribute to daynix/UsbDk development by creating an account on GitHub.

github.com

Step2: Download and extract the ColorOs 12 firmware

View attachment 5555715

CPH2251_11_C.27_ColorOS12_Android12_Latest.rar

drive.google.com

Step3: Flash the firmware
on cmd type below command to flash the firmware
python mtk wl "ROM location full path"

it will wait for devices.. Power off the phone, wait 10 sec then press vol up + vol down together and then plug the usb cable.
Once device detected , it will display devices information and start flashing
View attachment 5541639

View attachment 5541641

View attachment 5541645

While flashing it will dump the preloader, this file is very important so, please keep this file safely. this file may require in future.
View attachment 5541661

Step4: Boot the phone
Once flashing completed, press vol up + power button together for 30 sec. Wait for device to boot.

Step5: Flashing the preloader.bin (only if required)
In case, even after flashing completed successfully but some time device does not boot, only black screen, no charging sign either then don't panic, device has entered into emergency download mode, if you face the same then it's time to flash preloader.bin file. Follow below steps

1) download SP flash tool specific version v5.2148. (https://androidmtk.com/smart-phone-flash-tool)
2) download attached preloader.bin, scatter file and auth file from link below and place all these files at same folder.

MT6877_flashing_preloader.zip

drive.google.com

3) open sp flash tool, select download agent files from mtk folder as shown on image and load scater file and auth files respectively.
View attachment 5581171
4) In cmd run command "python mtk payload". Now press and hold vol+ vol- or all the buttons together, it should show payload sent successfully.
5) Now in sp flash tool click on Download button, it should flash the preloader successfully.
6) once preloader is flash successfully you can turn on the phone by pressing vol+ and power button together for 20 sec. If attached preloader does't flash then you can try flashing your device backup preloader.bin created/shown on step3.

so by this way we directly flashed ColorOS 12 on oppo reno6 5G.

Tips: If due to some reason flashing did not completed successfully then please press vol up and power button together for 30-40 sec to boot the phone (exit the brom mode).


Disclaimer: I have tested this method on my phone, it's 100% working but I will not responsible if damage any damage happens to your device while doing this. So do it at your own risk.

hey man when i flashed this rom it locked my phone *network lock* and i could not revert back do u have the 16 digit code to unlock it or sugget me something to fix it the rom is indian as i can see and its region locked to what ithink is your sim card company so id thank u if u give me that code or help me get my sim working you can hit me up on discord too Artemis#7480