Cat S31


ROM Mobile Cat S31 – ROM Android 7.0


Official ROM Cat S31 version: CAT_S31_LTE_D0201121.0_S31_1.020.00 – msm8909-user 7.0

Gapps include – No Rooted

Language support: Multilang

Install ROM:


1.Connect your phone to PC and let the driver install

2.Install QPST

3.Open QPST Configuration -> Add new port -> Select the com port of your device -> exit

4.Go to Start -> All Programs -> QPST eMMC Software Download open the tool -> Check program boot loaders -> Browse for the device com port

5.Click Load XML def and browse for rawprogram0.xml in folder ROM

6.Click Load Patch def and browse for patch0.xml in folder ROM

7.Check the search path 2 and browse for the folder ROM

8.Now click download, wait for the download to finish (it never finish but it also detects for a new driver, and that’s important)

and it will search for the new hardware found, install the driver

※Please make a backup of your device before installing or updating ROM

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