[Q] Android won't boot after modifying system file
This is (nearly) my first post, so hi all
Before I start with anything else: I searched a lot and found a lot of things, but I'm so newbie that I'm afraid to do anything because I don't quite understand what I'm about to do.
Oh, and I don't speak english natively so forgive me if I make any horrific mistakes
With all that said, let's begin with my problem...
I have a HUAWEI Y300-0100, and it comes with a funny feature: every time it can't connect to WIFI a popup message appears saying that if you switch to data plan charges may apply.
I am constantly switching between WIFI/no-WIFI zones so that message really bothered me, and I searched a way to disable it.
Presumably, the only way to do that is by modifying a system file called "build.prop". I already had my phone rooted so doing so wasn't very hard.
I used Jota+ to change a setting from "true" to "false" (ro.config.hw******), and saved the file in the root of the SD card. Then, with ES File Explorer, I renamed the "build.prop" in /system to "build.prop.bak" and copied there the "build.prop" I previously saved in the SD root.
All seemed to be fine, except that after rebooting my phone it could not get past the HUAWEI logo.
Android recovery mode seems to work, but I don't know how to use a lot of its options nor I want to do a Factory Reset if there's a better alternative.
Is there a way to modify system files before booting Android? I really would like to try to delete the "build.prop" file and rename the "build.prop.bak" back to "build.prop".
Does any of that make any sense? What do you recommend me to do?
Thank you very much for your help!