LG Tribute 2 LS665 Secure Booting Error Code 1003

LG Tribute 2 LS665 has Locked Bootloader. That means Custom Recovery, such as TWRP cannot be flashed successfully.  If you’ll attempt to Flash TWRP file of a similar model such as LG Leon or LG Risio, via Flashify or some other app, it will get flashed, but your phone won’t boot due to Locked Bootloader.  The signature is incorrect so it’ll result in a soft brick. As LG Leon and Risio have Unlocked Bootloaders they support TWRP as well as Custom ROMs.

Error 1003

The recovery mode will show Secure Booting Error with Error Code 1003. Now, if you’re unable to get past this error screen on every boot, then your phone is soft bricked and can be recovered only by flashing the LS665 stock firmware.

It may also happen that your LS665 won’t brick but will display this error on every boot. To solve this issue we’ve to flash stock recovery via Flashify.

Before proceeding, Let’s download the necessary files via below download link. The zip file contains LS665 Stock Recovery Image File and Flashify Apk.  Extract it and install Flashify. Transfer the Stock Recovery Image to your Phone’s Internal Storage or External SD Card.


LG LS665 Flash Stock Recovery via Flashify – 


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When you’ll run Flashify for the first time It’ll display a warning message, Accept it.

If a Popup with Root Access Prompt Appears, Grant Root Access

Now select the second option i.e Recovery Image

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We’ve to flash Stock Recovery so select the first option, Choose a File and Browse for the downloaded Ls665 Stock Recovery.img file.

Please confirm to flash the recovery image. You’re done. Secure Booting Error won’t show up anymore.

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