Download again and try.

At present there are two models of smartphone international version. M681H and L681H. Since L versions of the smartphone is completely different circuit board, including anotherl touchscreen - install other firmware will lead to a black screen / bands on the display after flashing.
Link for Firmware 5.1.3.4G -> https://yadi.sk/d/ln_zOOREuoYS2
Link for Firmware 5.1.3.2G-> https://cloud.mail.ru/public/6ShN/wcetexYex

Change the filename to update.zip and copy to recovery partition and flash with Wipe Data.

which version you have downloaded?

What is your model no? find it and try. as per my service provider mine is M681H.

can you make an adb shell while you are in recovery mode. connect to pc when phone is in recovery mode. check for adb connectivity. if are able to connect use shell scr ipts to downgrade to the first version. i  never tried for adb when im in recovery. i know twrp recovery we can use adb. try dis bro.