Quote:
Originally Posted by wodashie  Hi team, please i have been attempting to unlock a samsung S4 (i9505) for the past 48 hours and i always get this error.
i've followed all the instructions and still not been successful. reading about some of the s4's having new security. my other tools also don't work.
managed to unlock another variant of the s4 (M919) successfully though.
please assist.
here are the log:
Checking serial communication...
Preparing operation...
Unlocking...
Operation failed!
and some details of my device:
Android version:
4.2.2
Baseband version:
I9505XXUBMG7
Build Number:
JDQ39.I9505XXUBMG7
Secure boot status:
Type: Samsung
best wishes |
Hi bro.
As himanshu taldar says you have 2 ways, either change firmware then unlock or use other softwrae
I suggest you use Z3x unlock i9505 in 5sec
Here is log
Selected model: I9505
Selected port: COM3 Z3X BOX Serial Port
Selected port speed: 115200
Reading phone info...
Build: M9615A-CEFWTAZM-4.0.17062
Done with Samsung Tool v.15.5
Selected model: I9505
Selected port: COM3 Z3X BOX Serial Port
Selected port speed: 115200
Reading phone info...
Build: M9615A-CEFWTAZM-4.0.17062
Reading security... OK
Calculating... OK
Writing security... OK
Reseting...
Unlock done
Done with Samsung Tool v.15.5
unlock instruction
micro-uart cable:
1. Phone must be powered on.
2. Type *#7284# and choose Modem for UART.
3. Type *#9090# and choose DM over UART.
4. Connect the phone to UART port.
5. Choose correct COM port in port settings
6. Press "Unlock" button.
micro-USB cable:
1. Phone must be powered on.
2. Type *#7284# and choose PDA for UART options.
3. Type *#9090# and choose DM\DUM over HS-USB.
4. Reboot phone.
5. Connect USB cable, install drivers.
6. Select diagnostic port in port settings.
7. Press "Unlock" button.
Thanka z3x always best
REGARDS
