HOW DIDN’T I THOUGHT OF THIS BEFORE! OPUS BT-C3100 display is acting up. Repair

I liked the charger and have been using it for a couple of years now. I bought a charger on Aliexpress in addition to the Litokala Lii-500 since it has more functionality. In general, everything is fine, only one thing infuriates me, the OPUS BT-C3100 arrived a little defective, namely the display does not work correctly. I took it apart before, but I still didn’t understand what the problem was, so I decided to open it again and look more carefully, and of course show you.
I bought a charger here alii.pub/6xtsvs
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I always try to save money when shopping using the service letyshops.com/ua/winwin?ww=32...
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Unboxing and product review on the "Miracle Review" channel. Sharing experiences about shopping in foreign online stores, giving the viewer the opportunity to look at the product in detail. Ideally, a product review is created on the basis of PERSONAL experience (true facts and emotions from use). I try to shoot interesting and informative unboxings, reviews...
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Знакомые просто резак припаяли к контактам , если я понял правильно тему ролика ))