OPDump

Reverting from any AOSP custom rom to stock rom : Note down the device model in settings -> about phone. Download model specific rom files below : EU DN2103 : OxygenOS 11.3 A.01 IN DN2101 : OxygenOS 11.3 A.20 Download Platform Tools in your PC/Laptop. On your PC/Laptop, open the platform tools terminal. On your Phone, reboot to AOSP recovery, then select : Apply Update - Using ADB In the terminal, type: adb devices adb sideload oplus_ota_downgrade.zip Note : Make sure to first flash EU DN2101 ROM as your custom rom is based on DN2103 (EU Firmware). After flashing is complete, format data. Reboot to system. Check if everything is working fine. (WiFi, Bluetooth, Audio, etc.) ----------------------------------- Note : If you want to lock your bootloader, just reboot to bootloader mode using adb commands on your PC, then run this command : fastboot flashing lock  ----------------------------------- For IN Users (Optional) (who want to change from DN2103 to DN2101 : Prerequisites : 1. Unlocked Bootloader 2. Created full data backup as this erases data entirely ! Procedure : - Go to Settings - Disable network access for Software Update app in settings to prevent OTA updates for now. - Enable Developer Options in settings by tapping 5-6 times on Version Number. - Go to Software Update - 3 dots - Local Install - Here select the OOS 11.3 IN ROM. - Install and Reboot. Note : If you want to lock your bootloader, just reboot to bootloader mode using adb commands on your PC, then run this command : fastboot flashing lock 

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