Power and Volume Button Flex Cable
Samsung Galaxy A34 / A54 Power and Volume Button Flex Cable Replacement
- Fits
- Samsung Galaxy A34 / A54
- Fixes
- Dead side buttons
- Quality
- Brand new, OEM quality
- Fitting
- Professional install
Overview
What this part is
On the Galaxy A34 and A54, the power and volume keys press onto a thin flex cable fixed inside the right-hand side of the frame. The cable connects to the main board. When the contacts wear out, get damp or the cable is torn during a repair, the buttons stop clicking through or respond only now and then.
The same flex cable is used in both phones, so one part covers the A34 and the A54. It replaces the internal cable only. The outer button caps stay in the frame.
Compatibility
Specifications and compatibility
- Part
- Power and Volume Button Flex Cable
- Compatible with
- Samsung Galaxy A34 / A54
- Model numbers
- SM-A346B · SM-A546B
- Does not fit
- Galaxy A35, A55, A33, A53 or any other model
- Fixes
- Power or volume keys that do nothing, stick, or work only now and then
- Does not fix
- Screen, battery, charging or motherboard faults, or physically broken outer button caps
- Quality
- Brand new, OEM-quality power and volume button flex cable. Tested before dispatch.
- Brand
- Unbranded, compatible with Samsung Galaxy A34 / A54
- In the box
- 1 × power and volume button flex cable. Tools and adhesive are not included unless shown in the photos.
- Colour
- Not applicable (internal part)
- Installation
- Professional installation recommended
- Supplied by
- Supreme Phone Parts Ltd, Manchester, UK
Before you order
Is this the right part?
Signs it needs replacing
- Pressing the power key does not wake or lock the screen
- Volume up or down does nothing, or changes on its own
- A button works only when pressed hard or at an angle
- The phone keeps restarting or taking screenshots by itself
How to check your model
Open Settings › About phone. The model number should start with SM-A346 (Galaxy A34) or SM-A546 (Galaxy A54).
The Galaxy A35 (SM-A356B) and A55 (SM-A556B) look similar but use a different flex cable.
Professional installation
How a technician fits this part
- Power the phone off and remove the SIM tray.
- Warm the back panel edges, lift it off and remove the screws holding the internal cover.
- Disconnect the battery before touching any other connector.
- Release the old side key flex from the frame and its board connector.
- Fit the new cable so each contact lines up with its button, then reconnect it.
- Reconnect the battery, test power and both volume keys, then refit the back with new adhesive.
Check that the part matches the device before fitting it or removing any adhesive backing. Once a part has been fitted, it cannot be returned for a change of mind. Faulty parts are always covered.
FAQ
Frequently asked questions
Will this fit my Galaxy A34 or A54?
Yes, if Settings › About phone shows SM-A346B or SM-A546B. One cable fits both phones.
Does it fit the Galaxy A35 or A55?
No. The A35 and A55 use a different side key flex cable. Please choose the listing for your exact model.
Are the plastic button caps included?
No. This is the internal flex cable with the button contacts. The outer caps stay in the phone's frame.
Is it made by Samsung?
No. It is a brand new, OEM-quality flex cable made to fit the Galaxy A34 and A54, and it is tested before dispatch.
Should I fit it myself?
We recommend professional installation. The back panel is glued, the battery must be disconnected first, and the flex cable is thin and easy to tear.
How quickly will it arrive?
Orders placed before 4pm on a working day are dispatched the same day from Manchester by Royal Mail Tracked. Delivery is free on UK orders from £5.
Prepared by the Supreme Phone Parts team, Manchester. Last updated September 2026.