Learn how to unbrick/flash this device using sp flash tool from here
Note
Follow the instructions on how to flash the device carefully from the link above
I will not take responsibility on whatever may happen to your device.
Make sure you are downloading the exact ROM of the device you want to flash because
flashing a wrong preloder, will make the device completely dead
(can't power on, can't charge and will not be detected by a computer)
OPSSON IVO 6600 SPECS
Android 4.0 (Ice Cream Sandwich)
124.5 x 64 x 10.5 mm
TFT Capacitive touch screen with 16,000,000 colours
4-inch Touchscreen, 480 x 854 , IPS 235 ppi
1.0GHz dual core CPU
MT6572
512MB RAM
4GB Internal Memory
Supports up to 32GB microSD
5 MP Rear Camera, LED Flash,
1.3 MP Front Camera
Dual SIM
2G network
3G network
WIFI 802.11 b/g/n
bluetooth 3.0
1400mAh Battery
OPSSON IVO 6600 STOCK ROM
IVO_6600_Z28T2_OBX_IVO6600_H1.00_V10
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ADS HERE !!!