Backup stock using GSM Aladdin

Dannydet said:

Good luck as this looks to be a shady Chinese software with erroneous results....
And you want to install the rom that's already on your device? What's the point?

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Hadron said:

Unless you have rooted your phone you cannot damage the ROM. And if you have rooted and installed a custom recovery you can just do a ROM backup using that - which I'd certainly trust more than some app that nobody has heard of.
In the worst case you can find stock software for many phones and tools to flash that yourself (though I know nothing about your particular device).

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Hadron said:

The first step shouldn't be dangerous, certainly not if it has an officially unlockable bootloader.
The main danger with flashing TWRP is flashing the wrong TWRP. So make sure it's for your device and not some other model, and check you have a good download (any decent source should provide a checksum, such as an md5). This is the riskiest of the three though.
If you flash TWRP OK then you can use it to back up your ROM before flashing SuperSU. Then if anything goes wrong with that step you can just restore the backup using TWRP. It's a step people often miss, but I would always recommend taking a backup with TWRP before using it to flash anything, including using it to root the ROM.
Personally I always make sure I know where to find official stock firmware before attempting to root a phone, rather than try to find a way of backing up without root (partly because for the devices I've rooted there is no way of backing up a stock phone anyway). So my main concern is backing up my stuff, since unlocking most phones will also factory reset them.

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