[OnePlus Nord N200 5G] Travisholt92:
Captured this OTA returning to Android 12 after nearly bricking my T-MOBILE branded N200 and using MSMtool to get back to stock.

https://android.googleapis.com/packages/ota-api/package/f706ca0ab8556311d76c565135816d3873a4a15c.zip

This is a Full OTA for the N200 T-Mobile variant DE2118

This can be used to return to stock from a A11 or A12 fw based custom ROM.

YOU MUST BE ABLE TO ACCESS FASTBOOTD

if you can not access fastbootd, install LineageOS recovery and ensure it is functional before using this method.

First extract fastboot flashable images from the stock OTA.zip using a tool such as theses:

Linux - https://github.com/vm03/payload_dumper

MacOS/Linux/Windows (definitely faster than vm03) - https://xdaforums.com/t/tool-otadum...d-ota-payload-dumper-written-in-rust.4573841/

ensure that the output .img files are in a directory that you can use fastboot commands in (ex. platform-tools)

fastboot reboot fastboot

fastboot delete-logical-partition odm_a

fastboot delete-logical-partition odm_b

fastboot delete-logical-partition system_a

fastboot delete-logical-partition system_b

fastboot delete-logical-partition system_ext_a

fastboot delete-logical-partition system_ext_b

fastboot delete-logical-partition product_a

fastboot delete-logical-partition product_b

fastboot delete-logical-partition vendor_a

fastboot delete-logical-partition vendor_b

fastboot delete-logical-partition vendor_dlkm_a

fastboot delete-logical-partition vendor_dlkm_b

fastboot delete-logical-partition my_carrier_a

fastboot delete-logical-partition my_carrier_b

fastboot delete-logical-partition my_engineering_a

fastboot delete-logical-partition my_engineering_b

fastboot delete-logical-partition my_heytap_a

fastboot delete-logical-partition my_heytap_b

fastboot delete-logical-partition my_manifest_a

fastboot delete-logical-partition my_manifest_b

fastboot delete-logical-partition my_bigball_a

fastboot delete-logical-partition my_bigball_b

fastboot delete-logical-partition my_product_a

fastboot delete-logical-partition my_product_b

fastboot delete-logical-partition my_region_a

fastboot delete-logical-partition my_region_b

fastboot delete-logical-partition my_stock_a

fastboot delete-logical-partition my_stock_b

fastboot delete-logical-partition odm_a-cow

fastboot delete-logical-partition odm_b-cow

fastboot delete-logical-partition system_a-cow

fastboot delete-logical-partition system_b-cow

fastboot delete-logical-partition system_ext_a-cow

fastboot delete-logical-partition system_ext_b-cow

fastboot delete-logical-partition product_a-cow

fastboot delete-logical-partition product_b-cow

fastboot delete-logical-partition vendor_a-cow

fastboot delete-logical-partition vendor_b-cow

fastboot delete-logical-partition my_carrier_a-cow

fastboot delete-logical-partition my_carrier_b-cow

fastboot delete-logical-partition my_engineering_a-cow

fastboot delete-logical-partition my_engineering_b-cow

fastboot delete-logical-partition my_heytap_a-cow

fastboot delete-logical-partition my_heytap_b-cow

fastboot delete-logical-partition my_manifest_a-cow

fastboot delete-logical-partition my_manifest_b-cow

fastboot delete-logical-partition my_product_a-cow

fastboot delete-logical-partition my_product_b-cow

fastboot delete-logical-partition my_region_a-cow

fastboot delete-logical-partition my_region_b-cow

fastboot delete-logical-partition my_stock_a-cow

fastboot delete-logical-partition my_stock_b-cow

fastboot create-logical-partition system_a 1

fastboot flash system_a system.img

fastboot create-logical-partition system_ext_a 1

fastboot flash system_ext_a system_ext.img

fastboot create-logical-partition product_a 1

fastboot flash product_a product.img

fastboot create-logical-partition vendor_a 1

fastboot flash vendor_a vendor.img

fastboot create-logical-partition odm_a 1

fastboot flash odm_a odm.img

fastboot create-logical-partition my_product_a 1

fastboot flash my_product_a my_product.img

fastboot create-logical-partition my_engineering_a 1

fastboot flash my_engineering_a my_engineering.img

fastboot create-logical-partition my_stock_a 1

fastboot flash my_stock_a my_stock.img

fastboot create-logical-partition my_company_a 1

fastboot flash my_company_a my_company.img

fastboot create-logical-partition my_carrier_a 1

fastboot flash my_carrier_a my_carrier.img

fastboot create-logical-partition my_region_a 1

fastboot flash my_region_a my_region.img

fastboot create-logical-partition my_heytap_a 1

fastboot flash my_heytap_a my_heytap.img

fastboot create-logical-partition my_preload_a 1

fastboot flash my_preload_a my_preload.img

fastboot create-logical-partition my_manifest_a 1

fastboot flash my_manifest_a my_manifest.img

fastboot create-logical-partition my_bigball_a 1

fastboot flash my_bigball_a my_bigball.img

fastboot flash abl_a abl.img

fastboot flash abl_b abl.img

fastboot flash bluetooth_a bluetooth.img

fastboot flash bluetooth_b bluetooth.img

fastboot flash boot_a boot.img

fastboot flash boot_b boot.img

fastboot flash core_nhlos_a core_nhlos.img

fastboot flash core_nhlos_b core_nhlos.img

fastboot flash devcfg_a devcfg.img

fastboot flash devcfg_b devcfg.img

fastboot flash dsp_a dsp.img

fastboot flash dsp_b dsp.img

fastboot flash dtbo_a dtbo.img

fastboot flash dtbo_b dtbo.img

fastboot flash featenabler_a featenabler.img

fastboot flash featenabler_b featenabler.img

fastboot flash hyp_a hyp.img

fastboot flash hyp_b hyp.img

fastboot flash imagefv_a imagefv.img

fastboot flash imagefv_b imagefv.img

fastboot flash keymaster_a keymaster.img

fastboot flash keymaster_b keymaster.img

fastboot flash logo_a logo.img

fastboot flash logo_b logo.img

fastboot flash oplusstanvbk_a oplusstanvbk.img

fastboot flash oplusstanvbk_b oplusstanvbk.img

fastboot flash qupfw_a qupfw.img

fastboot flash qupfw_b qupfw.img

fastboot flash rpm_a rpm.img

fastboot flash rpm_b rpm.img

fastboot flash tz_a tz.img

fastboot flash tz_b tz.img

fastboot flash uefisecapp_a uefisecapp.img

fastboot flash uefisecapp_b uefisecapp.img

fastboot flash vbmeta_a vbmeta.img

fastboot flash vbmeta_b vbmeta.img

fastboot flash vbmeta_system_a vbmeta_system.img

fastboot flash vbmeta_system_b vbmeta_system.img

fastboot flash vendor_boot_a vendor_boot.img

fastboot flash vendor_boot_b vendor_boot.img

fastboot flash xbl_a xbl.img

fastboot flash xbl_b xbl.img

fastboot flash xbl_config_a xbl_config.img

fastboot flash xbl_config_b xbl_config.img

fastboot --set-active=a

fastboot reboot bootloader

fastboot flash modem_a modem.img

fastboot flash modem_b modem.img

fastboot -w

Hope this helps someone.