For Samsung Galaxy S21 / S21 Plus Replacement Power Button Flex The Repair Plus
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Discount applies at checkout on any mix of parts — ideal for repair shops.
Estimated delivery · Royal Mail Tracked 482–3 working days
- Order placedToday
- DispatchedSame day
- At your door2–3 days
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Phone parts are delicate. We recommend fitting by a qualified repair technician — damage caused during fitting is not a product fault. Need help choosing the right part? Call 07425 443625 or email info@therepairplus.com (Mon–Fri 10:00–18:00). Repair shop? Open a trade account.
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The Repair Plus power button flex for Samsung Galaxy S21 and S21 Plus replaces the ribbon behind the side key on the S21 5G G991B and S21 Plus 5G G996B. Fit it when the phone will not lock, wake or power off from the side button. Brand new, OEM standard, tested and shipped the same day from Manchester when you order before 4pm, Monday to Friday.
Key features
- Fixes a dead power key: restores lock, wake and power-off control.
- Two models covered: made to OEM standard for the S21 and S21 Plus.
- Correct connector: made to connect to the S21 series board.
- Tested before dispatch: every flex is checked before it leaves us.
- Affordable repair: much cheaper than replacing the phone.
Specifications
| Part | Power button flex cable |
|---|---|
| Compatible model(s) | Samsung Galaxy S21 5G (G991B), Galaxy S21 Plus 5G (G996B) |
| Condition | Brand new |
| Quality | OEM standard |
| Dispatch | Same day before 4pm, Monday to Friday, from Manchester, UK |
| Returns | 30 days |
Compatibility
Fits the Galaxy S21 5G G991B and S21 Plus 5G G996B. It does not fit the S21 Ultra (G998B) or S21 FE. Check your model number in Settings > About phone before ordering.
How to fit a side button flex on the Galaxy S21 or S21 Plus
- Power the phone off and soften the back glass adhesive with gentle heat, then lift the back glass away.
- Remove the screws holding the mid-frame cover and wireless charging coil, and disconnect the battery first.
- Unclip the old button flex from the board, ease it out of the frame and fit the new one in the same position.
- Reconnect everything, test each button before sealing, then fit fresh back glass adhesive.
You will need a heat source, a suction cup, opening picks, a small Phillips screwdriver and new back cover adhesive.
Why buy from The Repair Plus
- Same-day dispatch when you order before 4pm, Monday to Friday.
- UK stock, shipped from Manchester.
- Every part tested before dispatch.
- 30-day returns.
- Trusted by DIY repairers and independent repair shops.
Frequently asked questions
Does this fit the S21 Plus?
Yes. It suits both the Galaxy S21 G991B and the S21 Plus G996B.
Does it fit the S21 Ultra?
No. The S21 Ultra uses a different flex.
My power key clicks but nothing happens. Will this help?
Yes. A key that clicks with no response usually points to a damaged flex, which this part replaces.
What is your returns policy?
You can return the part within 30 days.
