Samsung Galaxy S20 Ultra Main Flex

Main Flex for Samsung Galaxy S20 Ultra: Main and Secondary Board Connection

The main flex for the Samsung Galaxy S20 Ultra restores data communication and power between the motherboard and the bottom board. This interconnection flex cable is the suitable part to repair charging, audio, or signal failures caused by broken traces.

Technical Specifications

• Part type: Main interconnection flex cable
• Compatibility: Samsung Galaxy S20 Ultra (SM-G988B, SM-G988B/DS, SM-G988U, SM-G988U1, SM-G988W, SM-G9880, SM-G988N)
• Quality: Compatible

When to Replace

• The mobile phone does not detect the charger or charging fails intermittently — confirm the diagnosis
• Bottom microphone or speaker without sound after impact or previous repair
• Constant loss of mobile network signal caused by poor contact in the circuit — confirm the diagnosis
• Cracked, creased, or damaged FPC connectors on the flex ribbon

Notes for the Technician

• Test before applying: connect the part to the equipment and confirm its operation before fixing or gluing it permanently. Thus, if there is any issue, the return or warranty is handled quickly and simply.
• Installation difficulty: Medium
• Access performed by removing the rear glass cover and protective plastic shields
• Disconnect the battery before handling or installing the new flex cable
• Check the alignment of the FPC connectors on the motherboard and sub-board to avoid bending the pins

What Distinguishes This Version

This compatible part has been selected to ensure reliable and high-performance technical replacement in the internal circuit. It is the economical solution suitable for repair technicians looking to restore full equipment functionality.

Frequently Asked Questions

Does this main flex resolve charging issues on the Samsung Galaxy S20 Ultra?
Yes, if the problem stems from broken traces or a damaged FPC connector on this connection cable between boards. If the USB-C port is physically damaged, the fault may reside in the bottom charging board.

Is it compatible with the 4G and 5G versions of the Galaxy S20 Ultra?
Yes, this flex was designed for the variants of the Samsung Galaxy S20 Ultra series (SM-G988B and respective market versions).