Lenovo A850 MT6582 4.2.2 firmware flash file 10000% tested download by Gsmtel.in.
Brand Name: Lenovo
Brand Model: A850
Chip: Mediatek 6582
Android Version: 4.2.2 Jellibean
Country Support: Anu Country Support
Deadphone Recovery File
10000% tested
Password: gsmsolutionbd.com–453

Password: Lenovoa840

cm2 info
Brand     : Lenovo
ProdName  : aux
ProdModel : Lenovo A850
Device    : A850
AndroidVer: 4.2.2
MTKxCPU   : MT6582
MTKxPRJ   : A850_S503_140208
[Read Ok] : preloader_aux.bin
[Read Ok] : MBR
[Read Ok] : EBR1
[Read Ok] : lk.bin
[Read Ok] : boot.img
[Read Ok] : recovery.img
[Read Ok] : secro.img
[Read Ok] : logo.bin
[Read Ok] : EBR2
[Read Ok] : system.img
[Make Ok] : cache.img
[Make Ok] : userdata.img
[ScatCFG] : MT6582 / V1.1.1 / aux / EMMC
Android Info saved
MAUI Meta DB saved
HWConfig Info saved
FW Size : 742 MiB
Lenovo A850 MT6582 4.2.2 official factory firmware download 1000% tested.
Lenovo A850 MT6582 4.2.2 Deadphoe Recovery flash file download now.
Lenovo A850 MT6582 4.2.2 firmware upgrade Complete by Smartphone SP flash tool.
How to flash/update Lenovo A850 MT6582 4.2.2 Jellibean scatter firmware ?
1 step: Download Firmware & unzip On your Computer.
2 Step: Download Latest Version usb Cable Driver & Setup On your Computer.
 3 Step: Open Flash Tool & Load Your Targeted Firmware In Your flash Tool. 
4 Step: 4/Mtk scatter load the firmware.
 5 Step: Press Upgrade/Download Button>flash Running. 
6 Step: Flash Complete>Unplug your Device. 
7 Step: Reconnect Your Battery & Press Power Button/Key.
 8 Step:Flash Done