Speed is around 2 MB/s, but it works for bootloader repairs.
However, for devices (no USB detection at all), ISP is the only solution . lg k41s isp pinout
Below is the exact pinout based on reverse-engineering of the PCB. All coordinates are relative to the eMMC chip (U401 – Samsung KLM8G1GETF-B041). Speed is around 2 MB/s, but it works for bootloader repairs
write a random firmware without checking partition sizes. The K41s uses a dynamic partition layout. Speed is around 2 MB/s
| Pin Number | Pin Name | Description | | --- | --- | --- | | 1 | VCC | Power supply (3.8V) | | 2 | GND | Ground | | 3 | RX | Receive data | | 4 | TX | Transmit data | | 5 | CLK | Clock |