Thank you so much for ur prompt reply.. I am actully not well versed with this.. i just thought of installing the update (OTA) but the screen appeared and it couldn't be done..There were 3 options to select from: Reboot/Reboot bootloader or power down.. Using the vol button i just clicked on reboot and phone went back in previous state
i am worried whether i would be able to install the official updates and how to get rid of this..i could also locate supersu app which is prompting me to run custom/normal recovery.. i don't know if i shud do anything from there..
i m novice to all this and don't know even a bit on this..this is a pre-owned phone & i have no idea what the seller has done..
i just want to run on official updates without getting into all this trouble..
your reply will be highly appreciated.
Originally Posted by synt3k
The tampered thing is nothing to worry about, it just means that the bootloader has been unlocked.
You might want to look into getting S-OFF by following one of the guides here on xda.
But it sounds to me like you are in the bootloader, you should be able to use the volume buttons to select recovery to enter TWRP or CWM.. in recovery mode you can flash the software update if it's a ROM that you found here as a zip file.. There are many guides around to do all of this, good luck.
Edit: Press volume down twice to select bootloader then hit the power button. Then you should see another menu with an option for recovery. Are you rooted? Do you have a custom recovery installed? If not, I'd recommend downloading TWRP.