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Samsung Z310 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
  3. If present uninstall 'Samsung PC studio software' from your computer
  4. Put the original working simcard inside the phone and turn on the phone (if you don't have the original simcard or your phone is in 'phone freeze' mode don't put any simcard in the phone)
  5. If present on your phone make sure Bluetooth is turned OFF and 'Auto Keypad Lock' is off
  6. Make sure battery is fully charged
  7. Enter code *#9998*324# (test mode menu) on the phone
  8. Press on phone Key '9' then key '6' and select Qualcomm USB
  9. Connect your phone to the computer with original Samsung USB cable
  10. Check the phone if it asks for a mode, if so select 'PC-Studio mode'
  11. Your computer will pop-up with new hardware wizard. Don't let it search in 'Windows Update' (No, not this time) then choose 'Install from a list of specific location (advanced)'. Then let it search for best driver at location c:program filessimlock remote clientdriversqxdm
    If you are using a 64 bit computer use: C:Program FilesSimlock Remote ClientDriversQXDM-64
    More detailed instructions: how to install QXDM drivers
    Note: this step has to happen 2 or 3 times! After installing first driver Windows will pop-up again with new hardware found wizard.
  12. Run Samsung Remote Unlock Client (Start -> Programs -> Simlock Remote Client -> Samsung Remote Unlock client)
  13. Login using your SRS login
  14. Select your phone model from the drop down list
  15. Press rescan and make sure the 2 QXDM drivers (QXDM Diagport and QXDM Modem) are detected (If not: check and set QXDM drivers)
  16. Click 'Direct Unlock' or 'Read Unlock Codes'. If the phone is in freeze mode always use 'Read Unlock Codes'
  17. If you used 'Read Unlock Codes' then remove the simcard turn on the phone and enter the unlock / unfreeze codes in the phone manually
  18. Disconnect phone and enter *#9998*324# one more time and then '9' and '6' and then put phone back in 'Samsung USB mode' for normal operation

Samsung Unlock and repair by cable manual by Unlocksamsungonline.com