This is the problem we faced nowadays. People just want "cheap" repair or not knowingly what the repair personnel is doing to their Mac. Malaysian should start appreciating proper professional works. Surely many could claim they can do it. Claim their parts are "original". But are you really sure?

To your question, no, those tapes are not supposed to be there. What you have are an unprofessional "repair" work. Even those thermal compound shouldn't smear around as such.
Masking tape on a chip, this made my Friday. 

Oh, BTW, whatever repair you trying on the same card, it won't last. It will fail again, matter of time.

Setelah kami menyelidik dan memerhati semuanya daripada dokumen yang diterima tuan AA, tiada pembaikian yang tidak kemas yang dinyatakan oleh pihak tuan. Disini kami ingin mengeluarkan kenyataan atas segala kenyataan yang dikeluarkan sebelum ini)

1. Tamat tempoh jaminan (Disclaimer / Penafian )
2. Penggunaan pita pada sesetengah chip ( insulator thermal prevent from short smd chip on carrier)
3. Sebab Lain ( Rujuk pada technician pihak ketiga yang tidak bertauliah dalam bidang Logicboard Macbook terlebih dahulu tanpa memastikannya 'isu tidak kemas')


Segalanya penjelasan telah saya berikan agar pihak tuan faham dan jelas keadaan sebenar yang mana boleh serba sedikit menjejaskan reputasi dan imej pihak kami selaku dalam industri servis dan baikpulih.