Sync computer folder -> phone's external SD card, with USB cable Background: Until a few days ago, I was happy with my Android 2.3 phone, and its Media Storage via USB cable : syncing my computer's D:/MusicLibrary/ folder with my phone's 128GB external SD Card was possible in one line with xxcopy.



With my non-rooted Android 4.2.2, I don't have Media Storage anymore, but only MTP. As mentionned in many other questions, this doesn't give a drive letter anymore by default. The only solutions I see to sync my computer's music library folder with my phone's SD card are very complex now, in comparison to the good-old-Android-2.3-way :


use FTP server (argh!) or Samba techniques
root my phone to allow Media Storage via a specific plugin
complex solutions with adb pull, but this won't track which files have been changed, so I would need to write different script to track changes, etc. (re-argh!)


Is there a simple solution to sync: computer folder &lt;-> Android 4 phone's SD card folder, via MTP, with Windows 7?



Remark: Funnily, the tag about MTP says The Media Transfer Protocol (MTP) is a protocol which purpose is to facilitate the transfer of media files and associated metadata to/from devices.. In such a case, it seems that it doesn't facilitate but makes things worse instead.
Myphone explorer window program can sync folder between phone and PC through USB

I) first time

i) install Myphone explorer Program on windows PC

ii) At Android  phone 
a) Ensure that 'USB debugging' is enabled on phone (Settings-Applications-Development or Settings-Developer options) In Android 4.2.2 and newer you have to unlock the USB-Debugging option first (Settings-About the phone-Build number -> tap 7 times on it)
b)  Ensure that the Debug-Interface-Drivers for your phone are installed (ADB-Drivers)

iii) Open program on PC without connecting phone
File> settings> unselect "start multi-sync" and unselect "connect on start up"

b)  File> settings>multi-Sync > unselect sync phone book, Sync organiser, Sync notes, refresh call logs, refresh message folders (to avoid these sync as we focussed on PC to phone file sync) 

iii) Open the program after connecting the phone > Myphone explorer >files> click on customise (down black solid tringle) a side of Sync files
(at the same time give access on phone when pop up appears to memory etc)
a) Title: e.g. Mtc
b) Direction : PC to Phone
c) Source folder: .......browse to PC folder e.g F:\Mtc
d) Target folder:..........browse to folder on internal memory of phone  e.g. External memory \BackupLT\Mtc (phone to be on data or file transfer mode not just on charging mode), select include subfolders

e) Mode: reflect folder

.............................................
II. Regular Sync
(i) Open the program after  connecting the phone > Myphone explorer >files> click on Sync (or customise and tap on your earlier given title).

Note:
If just folder name is to be changed for streamlining etc , change the folder name manually at PC and Phone of the same folder , otherwise it will copy name change folder to phone and delete old folder from phone (as Direction : PC to Phone,  Mode: reflect folder is selected condition)
If 2nd device is to be synced for its own (configured similar to above already) , the windws program is to be closed and 2nd device to be connected and program is to be started , 2nd device configuration will be loaded