Packets
Begin Session
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type |
| 0x00 | 32-bit integer | Packet’s command |
| dynamic | 32-bit integer | Protocol version (Known: 0x00, 0x03, 0x04 and 0x05) |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type, would be 0xFF on failure |
| dynamic | 32-bit integer | The protocol version, modified |
The modified version would be:
- If the
<Protocol Version>is 0, would return0x20000 - If the
<Protocol Version>is lower than bootloader’s,- it would return
(<Protocol Version> << 16) | 0x0
- it would return
- In other cases it would return:
(<Bootloader Protocol Version> << 16) | 0x0
(In a nutshell, 4 would be 0x40000)
Devices that do not support changing the packet size, send zero instead.
Consider it as a worst case scenario - Odin protocol version 1.
If it’s not the case, we can safely change the values:
- Read/Write timeout for file transfer: 120000 (2 minutes)
- Packet size for file transfer: 1048576 (1 MiB)
- File transfer max sequence size: 30 (Packets)
Also, you can send raw LZ4 compressed data to the phone! If it is supported, it would return 0x48000 with the example above. Basically, it is a bitwise-or with 0x8000.
Flash count reset
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type |
| 0x01 | 32-bit integer | Packet’s command |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type, would be 0xFF on failure |
| dynamic | 32-bit integer | Status code |
Set Total Bytes
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type |
| 0x02 | 32-bit integer | Packet’s command |
| dynamic | 64-bit integer | Total length, in bytes |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type, would be 0xFF on failure |
| 0x00 | 32-bit integer | Status code. Is always zero. |
Set File Part size
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type |
| 0x05 | 32-bit integer | Packet’s command |
| dynamic | 32-bit integer | File part size (in bytes) |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type, would be 0xFF on failure |
| 0x00 | 32-bit integer | Status code. Is always zero. |
Erase userdata partition
WARNING! This will do a factory reset.
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type |
| 0x07 | 32-bit integer | Packet’s command |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type, would be 0xFF on failure |
| dynamic | 32-bit integer | Status code of the Erase function |
Enable T-Flash
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type |
| 0x08 | 32-bit integer | Packet’s command |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type, would be 0xFF on failure |
| 0x00 | 32-bit integer | Status code. Is always zero. |
Change device’s region code
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type |
| 0x09 | 32-bit integer | Packet’s command |
| dynamic | String, 3 bytes | Region Code |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x64 | 32-bit integer | Packet type, would be 0xFF on failure |
| 0x00 | 32-bit integer | Status code. Is always zero. |
End Session (0x67)
End Session
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x67 | 32-bit integer | Packet type |
| 0x00 | 32-bit integer | Packet’s command |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x67 | 32-bit integer | Packet type, would be 0xFF on failure |
| 0x00 | 32-bit integer | Status code. Is always zero. |
Reboot
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x67 | 32-bit integer | Packet type |
| 0x01 | 32-bit integer | Packet’s command |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x67 | 32-bit integer | Packet type, would be 0xFF on failure |
| 0x00 | 32-bit integer | Status code. Is always zero. |
Reboot into Odin
Reboots and sends you back into download mode.
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x67 | 32-bit integer | Packet type |
| 0x02 | 32-bit integer | Packet’s command |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x67 | 32-bit integer | Packet type, would be 0xFF on failure |
| 0x00 | 32-bit integer | Status code. Is always zero. |
Shutdown
This command doesn’t work on some devices.
Request:
| Value | Argument Type | Information |
|---|---|---|
| 0x67 | 32-bit integer | Packet type |
| 0x03 | 32-bit integer | Packet’s command |
Response:
| Value | Argument Type | Information |
|---|---|---|
| 0x67 | 32-bit integer | Packet type, would be 0xFF on failure |
| 0x00 | 32-bit integer | Status code. Is always zero. |