no lights or display after being fixed

hi. after my screen was fixed, they is no light or display on it. what should i do

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multiple things could be failing.

ASSUMING by "Fixed" you meant you got the screen replaced. (Most common repair)

-Take it back to the shop you got it fixed at for their warranty. (if they do not have a warranty, never go there again, and you can either take it to a more reputable shop, or try it yourself.)

Keep in mind, if you attempt yourself, neither I, nor this web page is responsible for damage caused by you or the parts you decide to order.

1) Open up the device, and Disconnect the LCD.

-Clean the Flex Traces, and Board connector with a toothbrush, and 99% Isopropyl

-Reassemble and test.

NO?

2) Open up the device, and disassemble until screen is removed.

-Replace the display.

-Reassemble and test.

NO?

3) Open up the device, and remove motherboard.

-Locate GPU/Imaging Chips.

-Scan for physical damage.

-IF NO DAMAGE, Apply concentrated heat to location ontil solder melts.

-Reassemble and test

If none of these fix the issue, you are looking at your motherboard failing, in which case replacing is more expensive than just buying a new phone. please note that step 3 is a very high skillset of a repair, and without practice, damage to the phone is extremely likely.

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