How To Guide Unbrick all N20 Variants with oppo flash python - OnePlus Nord N20 5G

This guide is only for if your device has fastboot working.​​This method requires the extracting of the ofp in order to get the raw img for the fastboot d partition. Then you'll flash the critical partition manually in fastboot D. Youll be using the oppo tool to flash the non critical partition.​Download and install Python Pyton download
Download and install Git git ( During setup i just kept pressing next)
Download and install this Python flash tool Flash tool ( copy paste extracted files into the python folder)
if you don't see the app data folder its cause you have hidden items unchecked. see the attach photo.
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Download and install oppo-decrypt Oppo decryp ( you can skip this step, these files are in the link at the bottom)
Download adb/platform tools and put in c directory. Platform tools
Download the firmware for your device.
link at the bottom
Put the <firmware.ofp> in the python folder. on my pc its located in C:\Users\Admin\AppData\Local\Programs\Python\Python311
Put the critical files in your platform tools folder
Open a cmd in the python folder
Type python flash.py
Follow the prompt.
Flash will begin this takes time cause the tool unpacks the userdata.img and super.img.
Youll get a success output in the shell.
The 2nd Flash
open a cmd in platform tools
type fastboot reboot fastboot
Use the followinmg commands to flash the files to fastboot d
fastboot flash abl abl.elf
fastboot flash tz tz.mbn
fastboot flash my_product my_product.img
fastboot flash devcfg devcfg.mbn
fastboot flash rpm rpm.mbn
fastboot flash uefisecapp uefisecapp.img
fastboot flash hyp hyp.mbn
fastboot flash xbl_config xbl_config.elf
fastboot flash imagefv imagefv.elf
fastboot flash product product.img
fastboot flash xbl xbl.elf
fastboot flash qupfw qupv3fw.elf
reboot phone Success
Firmware Android 12 GN2200_11_C.11
Put this in your python folder firmware
flash this in fastboot D critical partition
ADB DRivers
if you have the cph variant,. just swap out the ofp for the ofp for your device
FAQ
My PC doesn't recognsize my device.
Driver issue. on pc go to device manager (right click windows icon)
fix where you see an exclamation mark.
on your phone bring down the notification shade,. look for usb connection, choose file transfer.

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Do you think this would allow cross-flashing? To turn the GN2200 (TMO model) into CPH2459 (carrierless firmware/TMOless splash screen) ?
Haven't seen anybody else post about cross-flash..

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rodagola said:
Do you think this would allow cross-flashing? To turn the GN2200 (TMO model) into CPH2459 (carrierless firmware/TMOless splash screen) ?
Haven't seen anybody else post about cross-flash..
Click to expand...
Click to collapse
I tried it and i bootlooped. But for the splash screen it is possible yl change the splash screen

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Can I use this on CPH 2459

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killerex said:
Can I use this on CPH 2459
Click to expand...
Click to collapse
Yes but not with the firmware provided

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how long is the first flash supposed to take

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TweakybirdsTheWord said:
how long is the first flash supposed to take
Click to expand...
Click to collapse
about 30 minutes. it unpacks the super very slowly

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does anyone have the cph A12 firmware?

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avgbozo said:
does anyone have the cph A12 firmware?
Click to expand...
Click to collapse
yes
3.94 GB file on MEGA
mega.nz
CPH2459export_11_A.07_2022071521480000 - FirmwareX
firmwarex.net

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I have tried this for my CHP2459 and all I get is reboot to bootloader. Suggestions? Device shows in fastboot

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Disclaimer​The information on this site may contain errors or inaccuracies, and we do not make any warranty or guarantee as to the accuracy of the information. Your warranty will be void if you tamper with any part of your device / software. YOU are choosing to make these modifications. XDA is not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed.
All the best,
xda-developers