Some Importnat Things need Remember:

Important Rules to Follow:
✅ Use O+ Support Tool For All OnePlus/Oppo Devices
❌ Don’t Try Os15/14 in old tool its will be Instant Otp Loss.
⚠️ Using the wrong file will result in an instant OTP loss.
🔑 Every authentication is important—use it safely.
📌 First Match Phone PCB with Item in O+ Flash Tool then start.
⚠️ Must check nv default option otherwise get instant OTP loss.
🔄 Always use the correct and tested latest flash file.
⚠️ If model disconnected after auth then get instant otp loss
❌Downgrade not possible at this time so don’t try.

#Tool NameTool VersionDownload
1RFT Xiaomi all in one packLatestDownload Now
2O+SupportTool_V2.7.2.3_RFTv3.0 pass = @fzaO+ 2.7xxDownload Now
3MsmDownloadTool_2.0.7.2_RFTv3.0 pass = @fzaMSM_2.7.2Download Now
4For_OLd_Realme_Mtk_OplusTool_v5.8.58.0_RFTv3.0 Pass = @fzaDev v2.5Download Now
5OplusFlashTool_v5.6.44.0_for_Sales pass = @fzaDL_TOOLDownload Now
6Oplus_Tool_V5.8.6.44_RFTv3.0 Pass = @fzaDev v5.8.6.44Download Now
7For all tools Extract and run => RFTv3.0RFTv3.0Download Now

Some issues and their solutions

If RFT Loader Auto Login Failed

1: Just wait for open Tool completely
2: Once Tool opened then copy your otp
3: Paste your otp in username and password
4: Press login button in Flash Tool
5: Wait for some time its will success login.

How to use msm download Tool

1: If you selected msm 2.7.2 and its not success
2: Just open it manually and select non europe
3; If non europe not selecting then delete temp from c drive
4: Now use your otp in username and password
5: Don’t Enter otp in verfiy section just try login.
6: Its will success and you can use it now. 

How to use o+ Support tool

Step 1: Ready with the OTP for your desired service.
📥 Step 2: Download latest version of O+ Support
🖥 Step 3: Open RFTLoader from the folder, enter the OTP
📂 Step 4: Once Flash Tool opens, load your firmware.
🔍 Step 5: Check your model, PCB, and item code in Flash Tool.
Step 6: Match PCB and item code, and enable NV Default 
🔌 Step 7: Verify your device connection port. Then , click Start.
Step 8: Once model connected, wait for success.