Samsung I437 Unlock and repair by cable manual

Samsung I437 Unlock and repair by cable manual
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1. If you do not have a valid SRS username and password yet: Buy a SRS Samsung unlock account
2. Download & run our SRS installer - Make sure you also install Samsung USB drivers in 4th step of installer.
3. If present uninstall 'Samsung PC studio software' or 'Samsung KIES software' from your computer
4. Turn on the phone with original simcard or without simcard
5. If present on your phone make sure Bluetooth is turned OFF and 'Auto Screen Time Out' is off Click to see image example
   
   
   
   
6. (Android phones only) Turn ON USB debugging on your phone.On the phone go to:
   "Menu - Settings-> Applications-> Development - USB debugging OR
   "Menu - Settings - Developer Options - USB debugging" (for newer Android versions)
   Click to see image example
   
   
   
   
7. Type *#7284# and set USB to Modem
8. In the same menu click on 'Qualcomm USB Settings'. | If 'Qualcomm USB Settings' is NOT available CLICK HERE
   To enable the 'Qualcomm' USB Settings' in the *#7284# menu please do the following
   

   1. Download phoneutils.apk
   2. Unpack phoneutil.zip and transfer phoneutil.apk to your phone
   3. Go to 'My Files' on your phone find the 'phoneutil.apk' and install it
9. Select option -> DM + Modem + ADB and press OK Click to see image example
   
   
10. Type: *#9090# then choose - [1] (Uart_null_)usb_diag.
    *If available! Click to see image example
    
    
11. Turn off the phone and put a non working sim in the phone (enter PIN if requested)
12. Connect phone with computer using original Samsung USB cable
13. Run Samsung Remote Unlock Client (Start -> Programs -> Simlock Remote Client -> Samsung Remote Unlock client)
14. Login using your SRS login
15. Select your phone model from the drop down list
16. Press rescan and make sure 'DiagPort' is detected (In case of trouble Check and set Samsung OMAP modem port)
    1. Make sure your original Samsung USB cable is connected to your computer and your phone (turned on in correct mode)
    2. Open 'Device Manager' on your computer:
       On XP go to: Start -> Settings -> Control Panel -> (Switch to Classic view ) -> System -> Hardware (tab) -> Device Manager.
       On Vista go to: Start -> Type in the following commando in the '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'

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