SM-A520W unlock error after enter msl

[ghacks]

UNLOCK INSTRUCTIONS:
Unlocking with original MSL code:
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:
Phone must be rooted!
If the software can't root the phone automatically,
then you must root your device manually.
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options',
go to 'Settings'-'Developer options' and enable 'USB debugging'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. 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: Unlock
Selected model: SM-A520W
Software version: 29.0

Searching Samsung modem... detected COM115
Reading phone info... OK
Model:
AP version:
CSC version:
CP version:
Product code:
Phone SN:
Unique number:
Reading IMEI... OK
IMEI: 355xx70xxxxxxxxxx
Reading SN... OK
Phone SN: R58J32DSND
Enter MSL: 5614093950340F0A322C24310159015D
Bypass MSL... OK
Unlocking... error
Done with Samsung Tool PRO v.29.0