I like ur video and also in English... Thanks

I really admire how great your tutorials are. But, Please sir, I have the ff questions that I really needs a help about and believe it will help all of us your students: 1. how do i know where and where i can jumper to solve white display problem in keypad phones. 2. how do i know where and where i can jumper to solve insert sim problem in keypad phones. 3. how do i know where and where i can jumper to solve mic problem in keypad phones 4. how do i know where and where i can jumper to solve keyboard problem in keypad phones 5. how do i know where and where i can jumper to solve white sound problem in keypad phones 6. parts of android charging system 7. how to solve tecno ka7 backlight problem with jumper. which specific places can6 i jumper? Thank you sir.

Thanks for the video. U helped with the IC orientation. Now the issue is network problem. It shows no service. How about that?

Thx bro so much