Hie there, i got my galaxy s4 (GT LUCNC4) that keeps turning off on its own so i have tried factory reset but the problem still persist.
By following the steps described below, you will be able to unbrick Samsung Galaxy S4 (I9500, I9505, SCHI545, SGHI337, SPHL720)
Table of content. LEAKED FIRMWARE INFO Known BugsIssues WARNING! ATT GALAXY S4 SGHI337 ANDROID KITKAT OTA UPDATE STEP 0: CHECK DEVICE MODEL NO.