![background image](http://html.mh-extra.com/html/samsung/galaxy-note-4-sm-n910f/galaxy-note-4-sm-n910f_unlock-and-repair-by-cable-manual_339726010.webp)
'Search box': devmgmt.msc and hit enter.
On Windows 7 Click the pearl button (start button) then in the
search box type 'Device Manager', you will see 'Device
Manager' in the search results. Click and it opens.
3. Now click the '+' at 'Ports (com & LPT)
4. Look for: 'diagnostic interface (com xx)'
5. Important note Some OMAP5 device create 2 diag Ports. Only
one of them works for unlocking.
When trying to unlock check your log (white log screen) you
should see a line with 'Chipset: M9xxxx' (where xxxx are
random other characters). If this line reads anything else then
'M9' you have the wrong Com port selected!.
6. You can directly see the Comport number between the brackets
(ComX where 'X' is a number)
7. Select (or type) this number under 'Select Comport' in the SRS
software
17. Press 'Read Unlock Codes' when available, if not click: 'Direct
Unlock'
18. If you used 'Read Unlock Codes' you need to enter the unlock codes
in your phone.
Click here for instructions
If *#7284# does not work on your phone you will either have to debrand
your phone (by flashing a non branded firmware) or use UART USB
cable.
If *#9090# does not work on your phone just continue the manual ignoring
this step in most cases unlocking will still work. If you get errors you
either need to debrand your phone or use UART USB cable. In doubt -
contact support
If you need help with anything please
Contact support
!
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