Cool mobile phone screen change tutorial

The frame of the 1.7295C mobile phone is divided into three layers. From the back to the front, the back cover, the middle case and the front case (ie, the bright frame) are removed. 2. Remove the back cover (I believe everyone will not introduce it), remove the battery and mobile phone. SIM card, memory card, etc. 3. Unscrew the 10 screws around the middle case (there is a position near the middle of the battery, do not drop) 4. The front case (ie bright frame) and the middle case are separated, between the two layers There are plastic buckles connected (I don't understand why there are screws, why use plastic buckles, it may be for better sealing), use nails, thin plastic sheets or credit cards to slowly open from the side slits, don't be afraid of smashing But it can't make brute force 5. Remove the middle shell and expose the upper and lower boards. The upper circuit board needs to be removed, the lower circuit board is glued up, it is best not to remove 6. The upper circuit board has two screws (red circles), one of which is under the memory card protective patch, only a little exposed, need to be exposed Unscrew the corner of the protective sheet and unscrew it. Before removing the circuit board, you need to disconnect the cable. The cable is located on the left side of the battery (the red box on the left side of the figure). It is a protruding bright strip. Use both nail clippers to pull out the two ends. At this point, you can take the upper board, but pay attention to the lower right connection line (the back of the red frame on the right. It is recommended to remove the plug for subsequent disassembly and disassembly of the screen) 7. The lower circuit board also has two cables for connecting the screen to be removed. . Lift the insulation layer in the lower right corner and you can see the interface. Referring to the screen assembly, you can find a square socket, pull out, one is the bayonet, pick up the clip to pull out the cable (red box) 8. The next step is more laborious. Do you see two round holes of about 5MM in the upper part? Use a pencil with a rubber head to hold the aluminum plate behind one of the small holes, and blow it against the corner of the screen with hot air. As the screen heats up, use a little bit of the top, and you will find the corner of the screen coming out of the front case. At this time, use the card to clip the middle of the screen to the front case. Next, separate from the corner of the exit along the edge of the screen frame until the screen is removed. 9. Finally, remove the screen cable from the aperture in the lower part of the front case, and the disassembly is completed. 10. Install the screen and disassemble the reverse. But please note that because we have not removed the lower board, there is a little trick to wear the screen cable. It is best to use the screen after the bad screen is used.