Samsung Galaxy Note 20 Ultra Battery Adhesive: what it's for

This battery adhesive is intended for the Samsung Galaxy Note 20 Ultra (N985F). It replaces the adhesive strip that holds the battery pressed against the chassis, inside the device, once the old adhesive has been removed or damaged during a previous opening.

This is not a cosmetic accessory: without correct fixing, the battery can move inside the housing, put pressure on the screen or rub against other components as the phone is handled over time.

Should the adhesive be changed every time the battery is replaced?

Yes, in the vast majority of cases. The original adhesive comes off in one piece during disassembly and loses its adhesive power: reusing it exposes the new battery to the mechanical play described above. A new adhesive guarantees a clean fit and a hold identical to that at factory output.

A common sign that justifies this replacement is a battery that seems poorly seated, that moves slightly when gently pressing the back of the device, or a screen that lifts at one edge after work on the battery.

What "Service Pack" means here

The part is sold as a Service Pack: it is a genuine manufacturer part, supplied as a Service Pack, meaning in the repair packaging used by Samsung to supply authorized centers. It is neither a refurbished part nor a compatible part: nothing has been salvaged, re-glued or restored, the box is that of the official repair channel.

The manufacturer reference GH02-21048A appears on the packaging: it allows checking, both before and after receipt, that this is indeed the part ordered for this specific model.

Compatible with which Galaxy Note 20 Ultra?

This reference concerns exclusively the Samsung Galaxy Note 20 Ultra (N985F). As the location and format of the adhesive are specific to the phone version, there is no ambiguity to resolve before ordering for this model.

What installation requires

Replacing the battery adhesive takes place after opening the back of the device and removing the battery in place. The old adhesive must be fully peeled off, with no residue, before positioning the new one: leftover glue prevents the new adhesive from adhering correctly.

Fitting is done with the phone powered off. A period of pressure after bonding improves hold before closing the chassis and putting the battery back under normal mechanical stress.