adb batch file help

@echo off
:MENU
cls
title ADB TOOLKIT
echo.
echo.
echo                                              ----------------------------
echo                                              ADB TOOLKIT MADE BY TECHDARK
echo                                              ----------------------------
echo.
echo.
echo ----------------------------------------------------
echo 1) Install APK
echo 2) Unlock phone
echo 3) Lock phone
echo ----------------------------------------------------
set /p select=type Install, Unlock or Lock:
if %select%==1 goto install
if %select%==2 goto unlock
if %select%==3 goto lock

:install
cls
echo What do you want to install?
set /p Input=Type in apk:
cls
echo installing...
echo.
adb install "apps\%Input%"
pause
goto menu

:lock
cls
adb shell input keyevent 26
cls
echo Your phone is locked!
pause
goto menu

:unlock
cls
echo Do your phone have a password or PIN
set /p pswd==(y/n)
if %pswd%==y goto pswdunlock
if %pswd%==n goto nopswdunlock
pause

:nopswdunlock
cls
adb shell input keyevent 26
cls
echo Your phone is locked!
pause
goto menu

:pswdunlock
cls
echo What is your PIN/Password?
set /p PIN=Type PIN/Pswd here:
cls
echo unlocking
echo.
adb shell input keyevent 26 && adb shell input keyevent 1 && adb shell input text %PIN% && adb shell input keyevent 66
pause
goto menu