Line brush or card brush can be used, depending on the rom suffix you downloaded. The suffix named zip can be used for line brushes or card brushes, and dar and md5 are line brushes. First, the card brush is to copy the rom to the SD card, press the volume button "+"and the home button after shutdown, and then press the power button. If there is an interface, press the volume key "+"or "-"to select "Apply upd from external storage" and press the power key to confirm; Select the brush space on the SD card with the volume of "+"or "-"(you can see the brush rom copied to the root directory of the SD card in the menu), and press the power button to confirm. Automatically scroll to the recovery interface after brushing, and press the volume "+"or "-"to select "Restart the system immediately"; Second, line brush 1, and use the brush owner to obtain ROM permission; 2. Check "Unknown source" and "USB debugging"; 3. Back up the data with the brush master; 4. Install the mobile phone driver with 9 1 mobile assistant and pea pods; 5. Press and hold the volume key "-"and the home key in the off state, then press and hold the power key, and press the volume "+"when there is an interface; 6, mobile phone and computer connection (data cable); 7. Start Odin brush tool software. When the ID: com (port number), that is, the first empty box in the third line, appears yellow, click on the PDA and load "I 9100gzclpl _ I 9100gozclpl _ I 9100gozhlpl _ home.tar.md5". Third, use the brush master (you can save the trouble of using the card to brush the ROM with zip) 1 to start the brush master; 2. Backup data; 3. Click "one-click brush machine" 4. Load the ROM package of zip mobile phone 5. Start the brush.