Recently, some users have reported errors while using the RT809H to read and write EMMC via flying wires. The causes of these errors are numerous and sensitive to external interference. We simulated various environments and conducted comprehensive tests using different computers. The test results are as follows: 1. Testing with a Laptop for VCCQ at … Read more
Open the RT809H operation interface, click [Smart Identification], select TYPE as EMMC, and Volt as 3.3V. Click settings, check EMMC Area in front of User/boot1/boot2/EXT_CSD, select VCCQ as 3.3V, then click write, choose the backup file, and select any one to start writing. RT809H Programmer Taobao Link: https://item.taobao.com/item.htm?id=551805435687 eMMC Programming Socket Taobao Link: https://item.taobao.com/item.htm?id=560967621649 Copy … Read more
1.Definition and Uses of eMMC eMMC stands for “Embedded MultiMediaCard”, which is an embedded storage solution that integrates storage chips, controllers, and interfaces. It is commonly used in embedded systems, mobile devices, and other applications requiring compact, integrated storage. Here are some key features and uses of eMMC: 1.Integration: eMMC integrates storage chips, controllers, and … Read more
This is a multi-functional online writer board that integrates EMMC flying wire, UART serial port, and JTAG functionality for variable frequency air conditioners, compatible with the RT809H programmer. EMMC Flying Wire Interface: It can directly provide the required 3.3V and 1.8V voltage to the motherboard, making it convenient to power the EMMC during board repairs, … Read more
The Konka LCD TV uses the RTD2995D main chip for its 4K network LCD TVs. This type of motherboard often has faulty EMMC chips. After replacing the EMMC, you need to use a programmer to write the boot program and then upgrade it using a USB drive. Some TVs that fail to upgrade via USB … Read more
Using mmc_test Tool on Linux Many friends have questions about how to test emmc/sd modules on Linux. Of course, mmc core provides mmc_test.c as a test file for the mmc driver. How to use the mmc_test.c test file to test the mmc driver? 1. Compile mmc_test.c into the Kernel By default, mmc_test.c is an independent … Read more
Compared to desktop computers, the speed of mobile phone storage chips has rapidly developed in the past two years. The once mainstream eMMC 4.5 has quickly evolved to the latest UFS 2.1. Currently, the highest speed of UFS 2.1 flash memory can reach 1166MB/s, while the theoretical maximum speed of mid-range eMMC 5.0 is 400MB/s; … Read more
Due to certain models of eMMC from a specific brand【such as: H26M62002JPR, H26M51002KPR, etc.】 requiring 1.8V for read and write operations, improvements must be made for these chips in the original V2.3 and lower versions: 1. A 3.3V to 1.8V LDO, package: SOT-23 2. Two 1uF-4.7uF surface mount capacitors, package: 0603 The installation effect is … Read more
EMMC online reading and writing ISP dedicated line: https://item.taobao.com/item.htm?id=557709148652 Here we share a batch of EMMC chip flying wire reading and writing point maps for LCD TVs, making it easier for everyone to use ISP online reading and writing dedicated lines without disassembling the chip to read EMMC data. Follow our public account for more … Read more
RT809H Programmer Tutorial: Introduction to the Direct Write Function for EMMC Chip on TV Mainboards EMMC Direct Write Boot Program Operation Demonstration Video: Smart TVs are very common in the market today, and the repair of TV mainboards often involves data copying. Using the RT809H programmer allows for easy reading of normal machine data for … Read more