Antenna Signal Flex Cable
Samsung Galaxy A70 Antenna Signal Flex Cable Replacement
- Fits
- Samsung Galaxy A70
- Fixes
- Signal faults
- Quality
- Brand new, OEM quality
- Fitting
- Professional install
Overview
What this part is
Inside the Samsung Galaxy A70, a thin antenna signal cable links the main board to the aerial parts. It is easy to pinch or unclip during a screen, battery or charging port repair, and the result is weak signal or no service.
If signal dropped straight after a repair, this cable is a common cause. Check the photos to match the cable to your old one. If signal is weak with no history of damage or repair, try another SIM and reset network settings first.
Compatibility
Specifications and compatibility
- Part
- Antenna Signal Flex Cable
- Compatible with
- Samsung Galaxy A70
- Model numbers
- SM-A705 series (check Settings › About phone)
- Does not fit
- Galaxy A71, A50, A70s or any other model
- Fixes
- Weak, dropping or no signal caused by a damaged or pinched antenna cable
- Does not fix
- SIM card or network problems, a faulty SIM reader or main board faults
- Quality
- Brand new, OEM-quality antenna signal flex cable. Tested before dispatch.
- Brand
- Unbranded, compatible with Samsung Galaxy A70
- In the box
- 1 × antenna signal flex cable. Check the photos for any extra items.
- Colour
- As shown in the photos
- Installation
- Professional installation recommended
- Supplied by
- Supreme Phone Parts Ltd, Manchester, UK
Before you order
Is this the right part?
Signs it needs replacing
- Signal bars are much lower than on other phones in the same place
- The phone shows 'No service' after a repair
- Calls drop or data keeps cutting out
- The old cable is torn, pinched or its end is loose
How to check your model
Open Settings › About phone and check the model name reads Galaxy A70. The model number should start SM-A705. Compare your old part with the photos before fitting.
Professional installation
How a technician fits this part
- Power the phone off and remove the SIM tray.
- Warm the back cover evenly to soften the adhesive, then lift it off carefully.
- Remove the screws and inner panel, then disconnect the battery before touching any other connector.
- Unclip both ends of the old antenna cable and route the new one along the same path.
- Press each end on firmly, reconnect the battery and test signal and calls.
- Refit the inner panel and screws, then seal the back cover 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 A70?
Yes, if Settings › About phone shows Galaxy A70 (model SM-A705). It does not fit the Galaxy A71, A50 or A70s.
Does it fit the Galaxy A71?
No. Only order this for the Galaxy A70. Compare your old cable with the photos.
Will this fix all signal problems?
No. It only fixes faults caused by a damaged or loose antenna cable. Try another SIM card and reset network settings first. If signal is still poor, the fault may be elsewhere.
Is it made by Samsung?
No. It is a brand new, OEM-quality antenna signal flex cable made to fit the Samsung Galaxy A70, and it is tested before dispatch.
Should I fit it myself?
We recommend professional installation. The glass back cover is glued in place and needs gentle heat, the battery must be disconnected first, and the small flex connectors are easy to damage.
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 over £5. You can also collect from our shop at 33 Moulton Street, Manchester M8 8FQ.
Prepared by the Supreme Phone Parts team, Manchester. Last updated September 2026.