**** Flash at your own risk ****

Update: 16th Feb 2023

A Oneplus user since OnePlus one. Give up Oneplus and swtiched to Nothing phone since Oneplus 10. Decided to try out OnePlus 11 and ColorOS is really pain in the a**

This post tested converting from PHB110 to CPH2447 / CPH2449. I did not test CPH2451.

Model:
CPH2447 - Indian
CPH2449 - EU / International
CPH2451 - North America
PHB110 - China

Credits：

Thanks for their feedback
praun.constantin@gmail.co
wtywtykk
mark332
alexander宇
daxiaamu

Following is the steps to flash the OTA updates:

Step 1:

Download all the usual tools
Download Fastboot Enhance
Android SDK
Get the firmware from this post
Firmware also availble at https://yun.daxiaamu.c…ms/一加11/
CPH2449 Global A07: eea73728a1b945ea8e3ff6b628495af5.zip
ColorOS: Abandon_PHB110_V13_202301030.zip (only oplusstanvbk.img needed)
Step 2:

To boot into bootloader from Android
Turn On developer mode
Turn on USB Debug
Turn on OEM-unlock
Run $ adb reboot-bootloader
After enter into fastboot (The one with Menu and shows SECURE BOOT/DEVICE STATE)
Run $ fastboot flashing unlock
Reboot back into bootloader, as in step 2 item 4.
Step 3:
Download and unzip eea73728a1b945ea8e3ff6b628495af5.zip
Check "Ignore Unknown Partition"
Make sure fastbootd is NO (Phone Screen: The one with Menu and shows SECURE BOOT/DEVICE STATE)
Flash payload.bin

Step 4:
Boot into fastbootd (Phone Screen: The one with language selection)
Check "Ignore Unknown Partition"
Make sure fastbootd is YES
Flash payload.bin
Step 5:
Download and unzip Abandon_PHB110_V13_202301030.zip
Unzip make sure radio/oplusstanvbk.img exits
Boot into fastbootd (Phone Screen: The one with language selection)
fastboot flash --slot=all oplusstanvbk radio/oplusstanvbk.img
Step 6:

Follow step 6 from "flash the OFP/EDL Packages"

Following is the steps to flash the OFP/EDL Packages:

Step 1:

Download all the usual tools
Android SDK
Get the firmware from this post
Firmware also availble at https://yun.daxiaamu.c…ms/一加11/
CPH2449GDPR_11_A.06_2023010723370128.zip
Abandon_PHB110_V13_202301030.zip (only oplusstanvbk.img needed)

Step 2:

To boot into bootloader from Android
Turn On developer mode
Turn on USB Debug
Turn on OEM-unlock
Run $ adb reboot-bootloader
After enter into fastboot (Phone Screen: The one with Menu and shows SECURE BOOT/DEVICE STATE)
Run $ fastboot flashing unlock
Reboot back into bootloader, as in step 2 item 4.
Step 3:
fastboot flash --slot=all modem radio/modem.img
fastboot flash --slot=all boot images/boot.img
fastboot flash vbmeta_system_a images/vbmeta_system.img
fastboot flash vbmeta_system_b images/vbmeta_system.img
fastboot flash vbmeta_a images/vbmeta.img
fastboot flash vbmeta_b images/vbmeta.img
fastboot flash vendor_boot_a images/vendor_boot.img
fastboot flash vendor_boot_b images/vendor_boot.img
fastboot flash vbmeta_vendor_a images/vbmeta_vendor.img
fastboot flash vbmeta_vendor_b images/vbmeta_vendor.img

Step 4:

Go into fastbootd (Phone Screen: The one with language selection)
fastboot reboot fastboot
fastboot flash --slot=all init_boot images/init_boot.img
fastboot flash --slot=all abl radio/abl.img
fastboot flash --slot=all aop radio/aop.img
fastboot flash --slot=all aop_config radio/aop_config.img
fastboot flash --slot=all bluetooth radio/bluetooth.img
fastboot flash --slot=all cpucp radio/cpucp.img
fastboot flash --slot=all devcfg radio/devcfg.img
fastboot flash --slot=all dsp radio/dsp.img
fastboot flash --slot=all dtbo images/dtbo.img
fastboot flash --slot=all engineering_cdt images/engineering_cdt.img
fastboot flash --slot=all featenabler radio/featenabler.img
fastboot flash --slot=all hyp radio/hyp.img
fastboot flash --slot=all imagefv radio/imagefv.img
fastboot flash --slot=all keymaster radio/keymaster.img
fastboot flash --slot=all oplus_sec radio/oplus_sec.img
# Flash the ColorOS version A.08 # fastboot flash --slot=all oplusstanvbk radio/oplusstanvbk.img
fastboot flash --slot=all qupfw radio/qupfw.img
fastboot flash --slot=all recovery images/recovery.img
fastboot flash --slot=all shrm radio/shrm.img
fastboot flash --slot=all splash images/splash.img
fastboot flash --slot=all tz radio/tz.img
fastboot flash --slot=all uefi radio/uefi.img
fastboot flash --slot=all uefisecapp radio/uefisecapp.img
fastboot flash --slot=all xbl radio/xbl.img
fastboot flash --slot=all xbl_ramdump radio/xbl_ramdump.img
fastboot flash --slot=all system images/system.img
fastboot flash --slot=all system_ext images/system_ext.img
fastboot flash --slot=all vendor images/vendor.img
fastboot flash --slot=all product images/product.img
fastboot flash --slot=all my_product images/my_product.img
fastboot flash --slot=all odm images/odm.img
fastboot flash --slot=all my_engineering images/my_engineering.img
fastboot flash --slot=all vendor_dlkm images/vendor_dlkm.img
fastboot flash --slot=all system_dlkm images/system_dlkm.img
fastboot flash --slot=all my_stock images/my_stock.img
fastboot flash --slot=all my_preload images/my_preload.img
fastboot flash --slot=all my_heytap images/my_heytap.img
fastboot flash --slot=all my_carrier images/my_carrier.img
fastboot flash --slot=all my_region images/my_region.img
fastboot flash --slot=all my_bigball images/my_bigball.img
fastboot flash --slot=all my_manifest images/my_manifest.img

Step 5:

From the fastbootd screen (with language selection),
English
Format Data

Step 6:

From daxiaamu blog post,
Go in to OxygenOS, skip all the setup. DO NOT SET THE PIN
Go into bootloader again. follow step 2
Run $ fastboot flashing lock
Again, go in to OxygenOS, skip all the setup. DO NOT SET THE PIN
Once passed the setup screen. Goto settings and set the pin

Additional Tips:

If your phone goes into bootloop with oneplus logo. Most likely its not brick. Just need to do a factory reset in fastboot or QLMFlasher.

As mention by mark332 use the free edition. Goto the fastboot tab and unbrick your phone.

I also paid for the commercial edition. Received username/password which can never login to the commercial editon. Commercial edition allows flash in EDL which i wanted to try.