How to fix Oppo Wifi , Hotspot and Bluetooth problems

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I have oppo A33F (Neo 7) . I am use this phone from 1 year. One day suddenly his software curupt
 And Mobile was not getting started. then i do new Software And mobile started. After Softwrare
my wifi , Hotspot and Bluetooth is not mac address showing unavailable.then i see 1 trick and i follow his steps and succes.

Follow these Steps

Step 1 

First Root your Mobile

Download root app for oppo

Step 2

Download file for replace

Click here to download 

Step 3 

Install es file explorer from play store

Click menu option

Open es explorer and on root explorer option

After all setting Open es explorer and copy file Where you have Save

and click menu option and select local and then select device

Select Local and click device  and you can see many folder

Now select Location ” System/etc/firmware/wlan/prima ” and paste file 

Click System
and click etc
and click firmware
and click wlan
and click prima
Now finally open locaion and paste files
when you paste file mobile ask for permission and you do click on Overwrite

After replace DO NOT Restart your mobile and first turn on Bluetooth 

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