your device has failed a routine safety check and will not boot

[Android Central Question]

Hello, when i try to boot my phone writing me this:

your device has failed a routine safety check and will not boot!

My phone was rooted and try to lock bootloader with command:

fastboot oem lock.
after that only writing me this and phone don't wanna boot.
Any ideas?!? I will be very grateful if someone helping me!!!!!!

 

[Charly Kayo1]

I forgot to say, device is lg v30+

 

[methodman89]

Hello, when i try to boot my phone writing me this:

your device has failed a routine safety check and will not boot!

My phone was rooted and try to lock bootloader with command:

fastboot oem lock.
after that only writing me this and phone don't wanna boot.
Any ideas?!? I will be very grateful if someone helping me!!!!!!

You're rooted. You're sol.

 

[Rukbat]

Reflash the stock (unrooted) ROM.

 

[Charly Kayo1]

thank you!

 

[Quincy Hyacinth]

Hello, when i try to boot my phone writing me this:

your device has failed a routine safety check and will not boot!

My phone was rooted and try to lock bootloader with command:

fastboot oem lock.
after that only writing me this and phone don't wanna boot.
Any ideas?!? I will be very grateful if someone helping me!!!!!!

Take the battery out, put it back in and hold the up volume button while plugging in the usb and it will enter fastboot mode. Unlock the bootloader again using "fastboot oem unlock" then restart the phone by typing "fastboot reboot" and it will boot up properly after.