Here is a stock ROM, MTK Backup for Opsson 6611.
With this Opsson 6611 flash file, you lot tin flash stock ROM dorsum to your Opsson 6611 using SP Flash Tool. This is to a greater extent than ofttimes than non required when you lot accept software issues amongst your Opsson MTK Android devices, ask to revert your Opsson 6611 to manufacturing flora country or unroot past times flash.
Meanwhile, inwards almost cases, flashing stock ROM on Opsson android devices corrects all software errors if you lot know how to create it.
Below hither is the download link for the stock ROM. You may likewise encounter the tutorial page on how to flash stock ROM on Opsson as well as other MTK android devices below.
Opsson 6611 Stock ROM Download Link
Download Opsson 6611 Stock ROM HereHelpful Links
How to Flash Stock ROM On Opsson IVO 6611Opsson 6611 Specs as well as Configuration
Other Opsson Android Device Stock ROM