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Feature

Perfect Compatibal: Samsung Galaxy Samsung Galaxy SIV S4 i9500 i9502 i9505 i9506 i9515 i959 i337 i545 M919 L720 R970(with Frame).
Amazing replacement: Repair/Replacing old, broken, cracked, damaged faulty Display with touch screen display problems, dead pixels, cracked screens, wrong color issues.
Pre-assembled Screen frame: LCD Assembly (Pre-assembled with Frame) is easier to use.
Ultra High contrast ratio:full set screen replacement included home button,keypad flex and ear mesh etc.
100% Quality Guaranteed: All screens test before shipping. Please test screen before installation. We also offer you 100% risk-free surviving guarantee to let you buy with confidence. Promise 30-day Products Exchange and Money Back Guarantee.

Description

Pakage Included:

1x LCD Glass Digitizer Display Screen Assembly Replacement with Frame Black for Samsung Galaxy S4 GSM.

1x Free Repair Tool Kits.

Compatible Samsung Galaxy S4 GSM Version:AT&T i337 | T-Mobile M919.

There are ways how to know which Galaxy S4 model.

Find Samsung Galaxy S4 Model Number in the system (Navigate to Setting>About).

Find Galaxy S4 Model Number behind the Battery.

Check Samsung Galaxy S4 Model Code under the Housing.

Here some Steps for the question you mentioned:

.Each screen is tested before shipping and 100% working, Ships safely with box packaging.

1.Pls kind check the LCD flex cable in good condition (not bend/stuck/twist or torn, you can use the Magnifier to get better result),the same as the four corner of the LCD panel.

2.Make sure the contact pins on the flex cable harness totally fitted with the mother board.

3.Change this Part is not an easy job. the item (especial the flex ribbon is easy fracture) is easy to damaged during the fitting.

4.Please test the item first before glue it into your phone or frame.

5.Just connect the flex ribbon to mainboard connector,after test the item working fine and then fitting into your phone.

6.Make sure the cable is connected in right way and is connected tightly.

Please be note:

Some parts have flex cables attached which are very fragile and can be damaged or torn very easily,so please be very careful when handling them.

For installation we suggest professional assistance.

Please kindly confirm your phone model before purchase,this item just compatible with S4 version i337 & M919 Only.