Method 1 (Applicable to Most Chipsets): After the system starts, check the EMMC write cycles by inputting the following command in the serial print information: tclsu (or su)cat /sys/kernel/debug/mmc0/mmc0:0001/ext_csd After executing the command, a long string of numbers will appear. Copy these numbers into a text document, open it with a text editing tool like … Read more
RT809H Programmer Tutorial: LeEco X3(928) EMMC Flashing Guide and USB Upgrade Program. Boot Burning Mboot Burning LeEco X3(928) board number MS6A928_MBD_C_H5100 wire connection method: First, solder the CLK, CMD, D0, GND on the motherboard according to the point diagram, disconnect the resistor at the wire connection and short the main chip oscillator. After powering on … Read more
Flash memory is a type of electronic non-volatile memory that can be electrically erased and reprogrammed. This technology is mainly used for general data storage and for transferring data between computers and other digital products, such as storage cards and USB drives. Flash memory is non-volatile, meaning it does not require power to retain data. … Read more
RT809H Programmer Tutorial: Fly Line Read/Write EMMC Boot and Erase Methods Solder CLK, CMD, D0, and GND according to the points, and short the two ends of the crystal oscillator. Insert the soldered ISP cable into the ISP port of the RT809H programmer and power on the motherboard. Open the RT809H programmer interface, click on … Read more
Overview of the EMMC Protocol Whether it’s EMMC V4.5 or V5.1, the protocol can seem overwhelming for newcomers who may struggle to grasp the key points or analyze it properly. This article summarizes some important and commonly used aspects of the EMMC protocol. 1. Basic Understanding of EMMC 1.1 Physical Connections: Card Concept (eMMC) image-20220215110840519 … Read more
EMMC ISP refers to the flying wire read and write of EMMC chips, communicating by connecting the CMD, CLK, D0, and GND of the EMMC. Due to varying power consumption across different boards, it is recommended that the power supply VCC be provided by the original board, and under this condition, VCC and VCCQ can … Read more
Recently, a certain domestic smartphone manufacturer sparked the “Flash Memory Gate Incident” after being exposed by netizens for “mixing flash memory” in the same phone. As of now, it seems there hasn’t been a proper resolution to this issue, but the situation of “mixing flash memory” is not a secret in the industry, after all, … Read more
When it comes to eMMC flash memory, what comes to mind first? Is it the non-mainstream manufacturers from years ago who took eMMC out of phones to use as “black chips” for solid-state drives in PCs? Or perhaps the earlier “flash memory scandal” that once stirred the mobile phone market? However, these are all old … Read more
With the rapid evolution of semiconductor technology, the capacity of mobile ROM has also advanced significantly. Nowadays, flagship smartphones hardly ever feature 16GB ROM, and the recently released iPhone 8/iPhone 8 Plus has also eliminated the 32GB version, starting directly from 64GB. As the capacity of system firmware, apps, and various files continues to increase, … Read more
The address-specified write function supports EMMC_AUTO_ISP (flying line programming), EMMC_AUTO (offline 8x programming), EMMC_AUTO_4BIT (offline socket 4x programming), and EMMC_AUTO_1BIT (offline socket 1x programming). The operation methods for several programming modes are the same, and we will take EMMC_AUTO as an example to introduce the “custom address writing” function. After selecting the EMMC_AUTO function, click … Read more