In the use of music as the box, some users will not be accustomed to the interface after upgrading, want to downgrade from 2.3UI to 1.5UI, then how to operate it? Letv as box 2.3UI downgrade 1.5UI First use SD card (must use SD card) to create boot card tool, load Bin file to make SD card system disk. Tip: The startup disk creation file must be in the same directory as u-boot.bin, otherwise the production will not be successful. 1. Prepare an SD card that will be used as a boot card and connect it to your computer with a card reader. 2. Start the disk creation tool SDcardMaker and u-boot.bin in the same directory on the computer disk (put the computer system D disk, etc.). 3. Run the tool SDcardMaker. 4. In the drop-down box for "Select Disk", select the disk to be bootable. (If the drop-down list is empty, check if the removable disk has displayed the drive letter in "My Computer". If there is a drive letter, close this tool and run this tool again). See below 5, in the "whether to re-partition and format?" In the corresponding item, select "Yes" will re-partition the corresponding disk, the default is U-BOOT and other information is reserved for the size of 16M disk space, all the remaining disk Space is divided into a zone, and the partition is formatted by calling the windows format window; then open and select the bin file. See below 6. Click on the production start card, you need to format the SD card and follow the prompts. Start formatting SD boot card production completed Downgrade Tutorial A. Then add 4 files of factory_update_param.aml, recovery.img, update.zip, and u-boot.bin to the root directory of the boot SD card. B. Install YYF_guanji.apk restart tool, open and select "enter the upgrade mode" and then determine, the premise is already ROOT, if there is no ROOT can use ADB tool ROOT C. Automatically enters the long-lost 1.5 upgrade interface after the system restarts. D. When the upgrade is completed, the 1.5UI V37 firmware can be successfully returned. Hdmi To Audio Cable,Audio And Video Cable,Aux Audio And Video Cable,Rca To Rca Cable CHANGZHOU LESEN ELECTRONICS TECHNOLOGY CO.,LTD , https://www.china-lesencable.com
