
Antenna flex cable for Galaxy S21
Compatible — Third-party manufacture. The lowest price for a repair.
- US version: for a device bought in the United States. Check your device's model number before choosing.
See the 2 versions and their prices
Your choice: US version, ref. G991U · Compatible
Ordered before 17:00 on a working day: dispatched on the next working day or the day after. Expected dispatch between Tuesday 10 November and Thursday 12 November. Estimated delivery outside France between Friday 13 November and Thursday 19 November (working days, estimate).
The kit for a successful repair
or just what you need:
Check your exact model before ordering: a Galaxy S21 does not accept parts from another version (mini, Plus, Pro, Ultra…). Find my model
Description
This Galaxy S21 antenna cable is a replacement spare part for the connection between the antenna and the device's motherboard. It carries radio signals, in particular for the mobile network, Wi-Fi or Bluetooth, depending on the phone's configuration. When it is damaged, you may notice loss of network, weak reception or dropped calls.
The part offered is a compatible cable, referenced for the US version of the model. Before fitting, switch off the device, remove the battery if the procedure allows it, and work on a clean, flat surface. Use suitable tools and avoid static discharge by touching a metal earth before handling the components. Never puncture or bend a lithium battery, and never use a device whose battery is swollen.
After reassembly, check mobile reception, Wi-Fi and Bluetooth under normal conditions. If the battery was removed or replaced, carry out a few complete charge cycles to stabilise the system. Moderate heat during the repair is enough, without ever exceeding what is necessary.
Tips
- Switch off the device and disconnect the battery before touching the cables
- Avoid static electricity: touch a metal earth before working
- Never bend or puncture the lithium battery
- Check mobile reception, Wi-Fi and Bluetooth after fitting
Fitting
Fitting guide: work with the device switched off, disconnect the battery before touching any flex cable, keep the screws in order and test the part before closing up. A question before ordering? Write to us.
Specifications
- Compatible with
- Galaxy S21 (SM-G991B)
- Model reference
- SM-G991B
- Part type
- Flex cable / button
- Quality
- Compatible
- Warranty
- 2-year legal guarantee of conformity
- Difficulty
- Estimated time
- about 60 min (approximate)
Benefits
- Third-party manufacture: the lowest price to repair
- Compatibility with the stated model checked on the product page
- 2-year legal guarantee of conformity


