The Postal 3 is slower than professional tools like the Easy-JTAG or UFI Box. This can lead to "Read Failed" errors if the wiring is too long or has high interference.
Locate the ISP (In-System Programming) points on your device's service manual or forums like Monitor.net.ru . postal3 emmc hot
Always try to read the EXT_CSD and BOOT1/BOOT2 partitions before attempting any write operations. The Postal 3 is slower than professional tools
The Postal 3 is a versatile, DIY-friendly USB programmer popular among technicians for flashing and repairing firmware on TVs, monitors, and other smart devices. It supports multiple protocols, including I2C, SPI, and UART. postal3 emmc hot