1) MHL must connected with external power of 5V 1A or it cannot output to HDMI.2) Restart phone after connect MHL cable. It must connect MHL cable to phone and then restart phone when use in the first time or HDMI cannot output.3) MHL put does not need any setting, just restart phone then it will output automatic.4). Phone will show sign of HDMI (some phone will not show) after connect MHL and show charging.5) Perfectly support 1080P output6) MHL is used by universal as long as your phone supports MHL agreement.7).It may cannot support MHL output if the phone refresh ROM
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