Originally Posted by jason557 (Post 12827661)

UNLOCK INSTRUCTIONS:
Unlocking with original MSL code:
Warning! Knox warranty must be active (0x00)!
If you have it voided (0x01(void)), then you can't unlock this phone with MSL.
1. Phone must be powered on.
2. Type *#0808# and select 'DM+ACM+ADB'.
3. Run dialer and type *#0*# (service mode will apear).
4. Connect the phone to USB cable, choose correct COM port in port settings.
5. Press 'Unlock' button.
6. Paste MSL code in new opened window and press 'OK'.

Reading codes using sever:
Warning! Knox warranty must be active (0x00)!
If you have it voided (0x01(void)), then you can't unlock this phone using sever.
1. Power on the phone.
2. Type *#0808# and select 'DM+MODEM+ADB'. 3. Connect the phone to PC with USB cable, install drivers if needed.
only can find DM +ACM +ADB
4. Press 'Read Codes via server' button, write your login and password in window if it will apear.
(Login and password will be saved as default after first input and can be changed in settings)

Operation: Read Codes via Server
Selected model: SM-A520W
Software version: 30.1

Checking Login and Password... OK
Ballance: 50 crd.
You have 50 credit(s) left. This opreratin takes 5 credits.Continue? Yes
Searching Samsung modem... detected COM45
Reading phone info... OK
Model: SM-A520W
AP version: A520WVLS1AQH1
CSC version: A520WOYA1AQH1
CP version: A520WVLS1AQH1
Product code: SM-A520WZKAKDO
Phone SN: R58J94ZT23J
Unique number: CBJ1087C8EAA864
Searching Samsung diag port... detected COM44
Reading phone info... OK
CP version: A520WVLS1AQH1
CP build: Aug 3 2017 19:04:44
Reading data from phone... error (1)

Done with Samsung Tool PRO v.30.1