Learn how to flash this device using ResearchDownload 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 pac file, will make the device completely dead
(can’t power on, can’t charge and will not be detected by a computer)
ITEL A51 STOCK ROM
A51-W505-6.0-OP-V005-20170121
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A51-W505-6.0-OP-V001-20161227
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