[Guide] Convert OnePlus 8T Cyberpunk Edition

[xiofee]

OnePlus 8T Cyberpunk Edition use a flag in param partition to identify.
If the flag is 8, HydrogenOS will mount the cyberpunk oem partition and enable it.
OTA and 9008 will not lost it!
So we can dump the param partition, change the flag and flash it to enable.
I write a simple python decrypt script to read/write the params.

This operation is very dangerous, please make sure to back up your data just in case!

Get the script from here
https://github.com/xiofee/op8t_param

Convert to Cyberpunk Edition
1. dump param partition

➜  adb shell
OnePlus8T:/ $ su
OnePlus8T:/ #
OnePlus8T:/ # dd if=/dev/block/by-name/param of=/sdcard/param.bin
OnePlus8T:/ # exit
OnePlus8T:/ $ exit
➜  adb pull /sdcard/param.bin ./

2. Write Cyberpunk Edition flag

➜  python op8t_param.py write -f param.bin -o param2.bin 4 8

3. flash param partition

➜  adb push ./param2.bin /sdcard/
➜  adb shell
OnePlus8T:/ $ su
OnePlus8T:/ # dd if=/sdcard/param2.bin of=/dev/block/by-name/param

or you can use fastboot flash param partition

➜  adb reboot bootloader
➜  fastboot flash param param2.bin

3. reboot

 

[xiofee]

reserve

 

[Jed!Master]

nice job

 

[sunmughans]

Will the UX be changed from stock to Cyberpunk edition ?

 

[Abaddon]

So to revert the change, we'll have to make it to 4 again? or reflash the backed up param?

edit: so I tried it on my 8T Global AA variant.
theme UI works, has camera effects too

cyberpunk FOD logo and animation does not work (still on stock)
No cyberpunk sounds
will test horizon light

 

[xiofee]

So to revert the change, we'll have to make it to 4 again? or reflash the backed up param?

edit: so I tried it on my 8T Global AA variant.
theme UI works, has camera effects too

cyberpunk FOD logo and animation does not work (still on stock)
No cyberpunk sounds
will test horizon light

I only tested on HydrogenOS, it has cyberpunk oem partition.

If you want restore, use your backup param or set the flag to 0 and reflash it.

python op8t_param.py write -f param.bin -o param2.bin 4 0

And the flag maybe 3 place

• not prmec
• prmec primary block
• prmec backup block

The Cyberpunk flag now only use prmec primary block, if the prmec primary block is incorrect, system will use backup block restore the primary block.
If you have some problem, you can modify all place with follow step

• modify not prmec block

python op8t_param.py write -f param.bin -o param2.bin 4 0 -ne

• modify prmec primary block

python op8t_param.py write -f param.bin -o param2.bin 4 0

• modify prmec backup block

python op8t_param.py write -f param.bin -o param2.bin 4 0 -np

 

[Exathi]

I tried to do this on the Global rom I'm assuming it only works on hydrogen os? I got a syntax error on the python op8 code

 

[Phreaker8]

work like a charm . i tried with 11.5.6 AA. But fod animation,ringtone,live wallpaper,icon pack,boot animation didnt change and for that reason i flashed boot animation via magisk and installed wallpaper and icon pack port.

 

[Steve0007]

work like a charm . i tried with 11.5.6 AA. But fod animation,ringtone,live wallpaper,icon pack,boot animation didnt change and for that reason i flashed boot animation via magisk and installed wallpaper and icon pack port.

About the phone shows 8T or Cyberpunked 8T ?
Your phone iw KB2000 that came with H2OS initially?

od animation,ringtone,live wallpaper,icon pack,boot animation didnt change because OEM cyberpunk comes only H2OS Rom.

 

[Phreaker8]

About the phone shows 8T or Cyberpunked 8T ?
Your phone iw KB2000 that came with H2OS initially?

od animation,ringtone,live wallpaper,icon pack,boot animation didnt change because OEM cyberpunk comes only H2OS Rom.

kb2001

 

[Exathi]

The guide worked just some of the features doesn't stick

 

[Hot-Proton]

I only tested on HydrogenOS, it has cyberpunk oem partition.

If you want restore, use your backup param or set the flag to 0 and reflash it.

python op8t_param.py write -f param.bin -o param2.bin 4 0

And the flag maybe 3 place

• not prmec
• prmec primary block
• prmec backup block

The Cyberpunk flag now only use prmec primary block, if the prmec primary block is incorrect, system will use backup block restore the primary block.
If you have some problem, you can modify all place with follow step

• modify not prmec block

python op8t_param.py write -f param.bin -o param2.bin 4 0 -ne

• modify prmec primary block

python op8t_param.py write -f param.bin -o param2.bin 4 0

• modify prmec backup block

python op8t_param.py write -f param.bin -o param2.bin 4 0 -np

With this i come complete back to a 8T EU what i have? i flash the param.bin from a 8T EU but msm download also a cyberpunk partition and i dont know why.

 

[Abaddon]

With this i come complete back to a 8T EU what i have? i flash the param.bin from a 8T EU but msm download also a cyberpunk partition and i dont know why.

It means your param still has the flag for cyberpunk. Revert it to 0 as mentioned at one of the previous posts on how to revert it.

 

[Hot-Proton]

It means your param still has the flag for cyberpunk. Revert it to 0 as mentioned at one of the previous posts on how to revert it.

No i get a param from a 8T EU without changes but msm download a cyberpunk partition.

 

[sunmughans]

No i get a param from a 8T EU without changes but msm download a cyberpunk partition.

I really feel bad for you bro

 

[Exathi]

Keep in mind that if you need to MSN back to T-Mobile stock it wont work because the param.bin fiile has been edited should you ever need to go back to tmobile use this file first

 

[Scott]

Keep in mind that if you need to MSN back to T-Mobile stock it wont work because the param.bin fiile has been edited should you ever need to go back to tmobile use this file first

I was just going to ask about that. Also, I wonder, if we have a T-Mobile branded device could we change the param.bin to be the standard North American Unlocked variant and such we could start using the MSM tool for that variant?

 

[theincognito]

Working fine here Flashed the latest H2OS first, then flashed the modified param via fastboot. Had to go to "Customization" to enable the icon pack and accent color - It was already present, just needed to enable it. Same with wallpaper. But everything works

 

[AGNBSL]

So, if i convert my normal 8T to cyberpunk then use MSM tool to restore, it has Cyberpunk addition in stock (no rooted, not modified) OxygenOS? I really like to mess with this :v

 

[AGNBSL]

Well i did this and convert done full to Cyberpunk.
Lately i received 11.0.8.11 OTA and now cyberpunk addition is messed up. I need to install full OTA (not 300mb, full 2gb) to restore cyberpunk addition. I can't find any link, so returning back to older version. Also Thank you OP for posting this guide