theaxledentaldj
Established Member
Marioni888..
how many times.. myself and moremodey01 said First do a NAND dump/backup.
"Upon recent descoveries, moremode01, highly recommends doing the NAND backup. He states the reason why. Downgrading or going back to an Original stock firmware on an Oppo-203/205, can be difficult and cause issues. The Blu-ray/UHD Blu-ray keys to playback physical retail discs can be lost. Seems these keys are installed into the NAND partition that some firmwares dont have included with them.
moremodey01 says:
If you check this nand / firmware layout
You will notice that some nand partitions are not coming from the firmware but preflashed somehow (MAC, KEY and FE_xxx (fe = bluray player)).
The firmware UDP20X-45-0605 version has a different nand layout , so if you flash it with Mtktools those unique partition become random garbage and apparently prevent UHD disc reading.
You can check your MAC and im pretty sure it wont be 00:22:xxxxx but something random.
You have to downgrade to V60 (nand write blocked on v65 ) and restore those unique partition with dd from your nand backup then upgrade to v65 again and you ll be back on track."
_____________________________________________________________________________
With that said, there are some other recently discovered bugs. Possible EDID issue, and a Dolby Vision to HDR10 switching issue. Some of this has been posted here on the forum and still on going in research. I can't comment anymore about the EDID.
There are many happy USA Oppo-203 users here who have used my page 1 post 1 instructions with sucsess.
how many times.. myself and moremodey01 said First do a NAND dump/backup.
"Upon recent descoveries, moremode01, highly recommends doing the NAND backup. He states the reason why. Downgrading or going back to an Original stock firmware on an Oppo-203/205, can be difficult and cause issues. The Blu-ray/UHD Blu-ray keys to playback physical retail discs can be lost. Seems these keys are installed into the NAND partition that some firmwares dont have included with them.
moremodey01 says:
If you check this nand / firmware layout
You will notice that some nand partitions are not coming from the firmware but preflashed somehow (MAC, KEY and FE_xxx (fe = bluray player)).
The firmware UDP20X-45-0605 version has a different nand layout , so if you flash it with Mtktools those unique partition become random garbage and apparently prevent UHD disc reading.
You can check your MAC and im pretty sure it wont be 00:22:xxxxx but something random.
You have to downgrade to V60 (nand write blocked on v65 ) and restore those unique partition with dd from your nand backup then upgrade to v65 again and you ll be back on track."
_____________________________________________________________________________
With that said, there are some other recently discovered bugs. Possible EDID issue, and a Dolby Vision to HDR10 switching issue. Some of this has been posted here on the forum and still on going in research. I can't comment anymore about the EDID.
There are many happy USA Oppo-203 users here who have used my page 1 post 1 instructions with sucsess.