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Want 2 upgrade my Ram

Model: ZE551ML
RAM: 2G
Firmware/APP Version: WW_2.20.40.198_20160930
Frequency of Occurrence: 1.8ghz
Rooted: No
APP Name:
Screenshot: https://us.v-cdn.net/6031231/uploads/ww_attachments/201912/18/200506n07cl7npp0pwzrpc.jpg

How can i upgrade my firmware
20 REPLIES 20

My phone slow but  my phone was hank

Robex
Star I
Last edited by Robex on 2019/12/21 20:09 See release note for your phone model here on ZenTalk. Then you will need to go to Asus support site and under your phone model download Marshmallow zip file (Version WW-4.21.40.352 latest version), save it in the phone internal memory in root file and restart your phone then you should be prompt to process update.

moymoy056m
Star I
My internet connection was lose need help

mauupgrade po ba ang ram ng asus zenfone zb500kg ?