How To Port CWM Recovery to O+ 8.15

Requirements

• Framaroot
• Mobileuncle
• recovery.img

Download

• Framaroot
• Mobileuncle
• recovery.img

Warning

Dont try to update using OTA.. Not compatible in CWM will result in Semi-brick.

Step Guide:

• Make sure your phone is rooted. If you haven’t done so, click here to root your phone.
• In your phone's menu, go to Settings > Developer Options > Check USB Debugging
• Download CWM recovery for Oplus 8.15. Place recovery.img file on root of your Phone Storage.
• 
• Disconnect any Usb chord in your phone.
• Open Mobileuncle Tools, grant it SuperSu permissions
• Choose “Recovery Update”.
• 
• Select the "recovery.img" file in SDcard2
• 
• "Are sure flash Recovery" - Just Click OK
• 

1. will ask you to enter to recovery mode just accept then phone will reboot to recovery mode to see if CWM shows up.
2. Done in Mobile Uncle and porting Cwm Recovery
3. Backup your phone Using CWM recovery
   
   1. Go to "backup and restore" with Volume Up / Down buttons.
   2. Select Backup 
   3. After backup finished, select reboot system now.
   4. Select Yes. {only if ask}
   5. your phone will reboot
   6. Done Backup..
4. Done CWM porting in your phone..

Credit to: kadroid.com