Tape used to secure ribbon cables
There is a thin, black, flexible tape used to secure the sockets that the ribbon cables plug into. The tape keeps the cable from pulling out as well as holding down the release lever. The tape is very delicate and conforms to wrap the object it is attached to.
See here
@jayhovajay44937 post a picture of what that all looks like iFixitでの質問に画像を追加する方法
oldturkey03 さんによる
@oldturkey03 Done
The tape tends to self-destruct. It is very thin, plyable and sticky. It wraps around components it is placed on sealing away moisture and providing strain relief.
Jay Hova (Jay Hova 4x4) さんによる