diff --git a/lib/util/devutil.js b/lib/util/devutil.js
index 6eb128d9..8ae09440 100644
--- a/lib/util/devutil.js
+++ b/lib/util/devutil.js
@@ -43,6 +43,8 @@ devutil.listPidsByComm = function(adb, serial, comm, bin) {
     return new Promise(function(resolve) {
       var header = true
       var pids = []
+      var showTotalPid = false
+
       out.pipe(split())
         .on('data', function(chunk) {
           if (header) {
@@ -50,26 +52,39 @@ devutil.listPidsByComm = function(adb, serial, comm, bin) {
           }
           else {
             var cols = chunk.toString().split(/\s+/)
-            if (cols.pop() === comm && users[cols[0]]) {
+            if (!showTotalPid && cols[0] === 'root') {
+              showTotalPid = true
+            }
+
+            // last column of output would be command name containing absolute path like '/data/local/tmp/minicap'
+            // or just binary name like 'minicap', it depends on device/ROM
+            var lastCol = cols.pop()
+            if ((lastCol === comm || lastCol === bin) && users[cols[0]]) {
               pids.push(Number(cols[1]))
             }
           }
         })
         .on('end', function() {
-          resolve(pids)
+          resolve({showTotalPid: showTotalPid, pids: pids})
         })
     })
   }
 
   return adb.shell(serial, 'ps 2>/dev/null')
      .then(findProcess)
-     .then(function(pids) {
-       if (pids.length > 0) { // return pids if process can be found in the output of 'ps' command
-         return Promise.resolve(pids)
+     .then(function(res) {
+       // return pids if process can be found in the output of 'ps' command
+       // or 'ps' command has already displayed all the processes including processes launched by root user
+       if (res.showTotalPid || res.pids.length > 0) {
+         return Promise.resolve(res.pids)
        }
-       else {                 // otherwise try to run 'ps -elf'
+       // otherwise try to run 'ps -elf'
+       else {
          return adb.shell(serial, 'ps -lef 2>/dev/null')
            .then(findProcess)
+           .then(function(res) {
+              return Promise.resolve(res.pids)
+           })
        }
      })
 }