First determine the type of fault

Fixed position color stripes/lines with broken inner screen, loose or aged wiring, lightly press screen edges for testing, backup data for repair

Full screen flashing/jumping stripe display driver failure, motherboard issue. Restart the phone to restore factory settings

Touch failure+striped touch screen damage or cable breakage, immediately stop using to avoid further damage

Possible self-study steps (at your own risk)

1. Eliminate software issues

Force restart of phone:

Huawei/Honor: Press and hold the power button for more than 10 seconds.

Xiaomi/Redmi: Power button+volume up button for 10 seconds.

IPhone: Quickly press Volume+, Volume -, and then long press the power button until the Apple logo appears.

Restore factory settings (data will be cleared):
Enter the system recovery mode (with different combinations of buttons for each brand) and select 'Clear Data'.

2. Check physical connections (for users with strong hands-on abilities only)

Disassemble the machine and re plug and unplug the ribbon cable (requires a screwdriver and pry bar):

After shutting down, remove the back cover (search for the corresponding disassembly video for the model).

Find the screen ribbon cable (usually located at the top of the motherboard), disconnect it, and then re fasten it.
⚠️ Risk: Improper operation may damage other components!

3. Temporary relief of display issues

Lightly press the edge of the screen: If the stripes change with pressing, it may be due to poor contact of the ribbon cable. You can try pressing the edge of the screen lightly for 12 hours (non permanent repair) with a book.

Do not attempt ineffective/dangerous operations

Heat the screen with a hair dryer (which may exacerbate delamination).

Freezing mobile phones (condensation water can corrode circuits).

Using the 'Screen Repair App' (purely false advertising, hardware issues cannot be fixed by software).

Ultimate solution official repair:

After sales replacement of screen assemblies for brands such as Huawei, Xiaomi, and Apple (priced at 300-1500 yuan, but with guaranteed quality).

Prioritize booking through official websites (such as Huawei services, Apple support).

Third party repair: Choose a store with good reputation and require the use of original or high imitation screens (lower price but higher risk).

Use a phone case and tempered glass film.

Avoid putting your phone under pressure (such as sitting in a pocket), high temperatures, or humid environments.

Regularly backup data to prevent sudden screen failure and data loss.

If the screen stripes are accompanied by touch failure or worsening diffusion, please stop using them immediately and send them for repair to avoid damaging the motherboard!