S21 ULTRA 5G ORIGINAL CHARGING CARD

🔍 Versions / Types of Charging Port Module

For the S21 Ultra 5G, the “charging port” is not just the USB-C connector alone, but generally a bottom daughter-board/sub-board that includes the USB-C port, sometimes the microphone, sometimes the SIM-tray reader, antenna cables, flex cables etc.
Here are what you’ll commonly see:

• A version labelled Part # GH96-14064A for model SM-G998U (North American / USA version) of S21 Ultra.

• A version for the international/European variant, e.g., SM-G998B, sometimes labelled differently (for example board flex with SIM reader and charging port) .

• The port/flex module may differ slightly by region because of antenna layout, SIM-tray design, certification/regulations. So when purchasing a replacement you must match your model code (SM-G998U / SM-G998B / etc) and ensure compatibility.

⚠️ Why You Might Need to Replace the Charging Port Module

Here are common reasons the module may need replacement:

• Physical wear and tear: Frequent plugging/unplugging of the USB-C cable causes mechanical stress on the port pins or on the flex board.

• Poor connection: The USB-C port may get dusty, lint may accumulate, or the connector pins may bend or oxidize. Users report:

  “There was fluff in the port stopping a good connection.

• Charging issues or slow/only “Charging” (not “Fast/Super fast”): Even with correct charger and cable, if the port or board is faulty then fast charging may drop to slow charging or fail. For example:

  “My galaxy s21 ultra randomly started charging really slowly … the port also works as it can be read by my computer but data/OTG not working.”

• Water/moisture or corrosion damage: The phone may detect moisture in the charging port, or port may be degraded by ingress. Example:

  “I keep getting the moisture detected in charging port error … cleaned the port… but only temporary.”

• Flex cable/board connector fault: The daughterboard may have an internal fault (circuit trace broken, connector loose) even if the USB-C outer port looks fine.

• Damage from improper cable/adapter: Using cheap cables or adapters that force or misalign may damage port or board.

• Loss of charging/data/OTG functionality: If USB-C port works for some things but not all (e.g., data transfer to PC, or OTG) then likely port board fault.

🧪 What to Check Before Replacing

Before deciding to replace the module, do these checks:

• Try a known good cable + adapter (preferably original Samsung or certified) to rule out cable/adapter.

• Inspect the USB-C port visually (under light) for lint/dust/debris; gently clean with non-metal tool or compressed air.

• Check whether wireless charging works. If wireless works but wired charging fails, port module likely culprit.

• Check software settings: ensure Fast/Super Fast Charging is enabled in Settings → Battery and device care → Battery → More battery settings.

• If the port plugs only one orientation or only in certain conditions, mechanical port fault is likely.

• If you see “Moisture detected” warning, or data/OTG fails, port flex board likely compromised.

• Consider that replacing module may void IP-rating/water-resistance unless done with correct seals/adhesive.

🔧 What the Replacement Part Entails

When you replace the charging port / daughterboard:

• The board must match your model (SM-G998U vs SM-G998B etc).

• The part includes USB-C port, flex cable connector, maybe SIM-reader/slot depending on version.

• You must carefully disassemble (remove back cover, unscrew, disconnect flex cables). For example, one guide for S21 Ultra lists steps.

• After replacement you must re-apply new adhesive / back-cover seal to maintain dust and splash resistance. If not, you lose official IP rating.

• Installation requires skill: if done incorrectly can damage motherboard or other parts. If under warranty, better go to authorised service.

• A typical replacement board is available in Pakistan/online market (search “charging port flex board S21 Ultra SM-G998…”).