Dear fellows, My Zenfone 5 LTE has been working fine for the past 1 year plus until last week I installed a launcher (Samsung S Launcher) from Google Play Store. It worked fine after installation, but after I restarted my phone, it turned off and could not turned on any more. No matter what button or buttons combination I pressed, no response from the phone. Even if I plugged in the charger, no indicator at all. When I plugged in to a PC, it was detected as Qualcomm HS-USB Diagnostics 9006 in Device Manager. I have been searching on the web for solutions but to no available. Appreciate if anybody can shed some lights on what I can do to rescue my phone. Thanks a lot!