There is that reliably works for free on CPH1941 running Android 9/10. However, here is a manual method that works (updated 2024-2025): Method: Using the "TalkBack" & "Gboard" Glitch What you need: A stable Wi-Fi connection.
| Tool Name | Compatibility | Price | Difficulty | | :--- | :--- | :--- | :--- | | | CPH1941 (MTK) | ~$45 | Easy (Windows) | | Tenorshare 4uKey | CPH1941 | ~$49 | Easy | | SP Flash Tool | Free (Technical) | Free | Hard (Requires scatter file + Auth Bypass) | Oppo Cph1941 Hard Reset Unlock Tool
This erases all your data (apps, photos, contacts). There is that reliably works for free on
Take the phone, the original box (with IMEI), and proof of purchase to an Oppo Authorized Service Center . They will reset it for free or a small fee. Take the phone, the original box (with IMEI),