SPH-M8400 unlock success[Reference]
download this file first
SPH_M8400_21898_Unlocked.oct
press and hold call, menu then power ON
install driver
proceed with fashing
Welcome to Octopus Box Samsung software version 1.4.2
-----------------------------------------------------------------------------------
To connect SPH-M8400 phone you have to perform the following steps:
1. Go to dial window.
2. Enter "*#9090#" number.
3. Open numerical keyboard and press "1" number.
4. "UART_HFK USB_Diag Change complete" message must appear.
5. Press "END" softbutton.
6. go to "MENU" - "SETTINGS"
7. In upper menu select symbol with arrows
8.In oppened connections menu select "USB"
9. If "Active Sync" is checked dissable it
10. Check "Phone" and press left lower softbutton
11. Restart phone.
12. Press "Read Info" in Octopus Samsung software.
Selected firmware file: SPH_M8400_21898_Unlocked.oct
To put SPH-M8400 phone into emergensy mode you have to perform
the following steps:
1. Reconnect phone battery.
2. Press and hold Call" + "Menu" + "Power ON" buttons.
3. Insert usb cable.
Searching for phone. Please wait...
Phone successfully connected
Firmware write started.
Writing PDA section...
Updating data, plaese wait...
Updating data successfully completed.
Continue writing PDA section...
Updating data, plaese wait...
Updating data successfully completed.
PDA section has been written successfully.
Writing PHONE section...
Updating data, plaese wait...
Updating data successfully completed.
PHONE section has been written successfully.
Firmware writing successfully completed.
sad to say walang english language
SPH_M8400_21898_Unlocked.oct
press and hold call, menu then power ON
install driver
proceed with fashing
Welcome to Octopus Box Samsung software version 1.4.2
-----------------------------------------------------------------------------------
To connect SPH-M8400 phone you have to perform the following steps:
1. Go to dial window.
2. Enter "*#9090#" number.
3. Open numerical keyboard and press "1" number.
4. "UART_HFK USB_Diag Change complete" message must appear.
5. Press "END" softbutton.
6. go to "MENU" - "SETTINGS"
7. In upper menu select symbol with arrows
8.In oppened connections menu select "USB"
9. If "Active Sync" is checked dissable it
10. Check "Phone" and press left lower softbutton
11. Restart phone.
12. Press "Read Info" in Octopus Samsung software.
Selected firmware file: SPH_M8400_21898_Unlocked.oct
To put SPH-M8400 phone into emergensy mode you have to perform
the following steps:
1. Reconnect phone battery.
2. Press and hold Call" + "Menu" + "Power ON" buttons.
3. Insert usb cable.
Searching for phone. Please wait...
Phone successfully connected
Firmware write started.
Writing PDA section...
Updating data, plaese wait...
Updating data successfully completed.
Continue writing PDA section...
Updating data, plaese wait...
Updating data successfully completed.
PDA section has been written successfully.
Writing PHONE section...
Updating data, plaese wait...
Updating data successfully completed.
PHONE section has been written successfully.
Firmware writing successfully completed.
sad to say walang english language