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Blog1 min read

Samsung screen flex cable replacement

On many Samsung Galaxy models, the screen works through a main flex cable linking the main board to the sub-board. When this cable fails, the picture comes and goes, touch works in parts, or charging is affected too. The main flex can be replaced alone; if the screen’s own flex fails, the screen is usually replaced.

Cep Market Repair TeamIn Kadıköy since 2006
Key points
  • On many Galaxy models the screen connects through a main flex cable.
  • A main flex fault makes the picture and touch come and go.
  • The main flex can be replaced on its own.
  • If the screen’s own flex is faulty, the screen is usually replaced.
  • Back up your data before the repair.

01Main flex or screen?

SymptomLikely cause
Picture comes and goes, charging faulty tooMain flex
Touch works only in partsMain flex or screen
Spots or coloured linesScreen
Works when pressedLoose connection

02How the repair works

  1. Diagnosis. We find whether the fault is in the main flex or the screen.
  2. Connection check. Connectors are cleaned and reseated.
  3. Replacement. The main flex, or if needed the screen, is replaced.
  4. Testing. Picture, touch, charging and sound are tested.
Samsung Galaxy C7 screen and charging board replacement

See also phone screen flex cable repair and Samsung touch screen not working.

Brand › Model › Repair listChoose your model, ask about the faultSamsung models

03How to get your phone to us

Visit our store

Hasanpaşa Mh. Söğütlüçeşme Cd. No: 192 (opposite the mosque car park), Kadıköy. Monday – Friday 09:00 – 20:30 · Saturday 09:30 – 20:30 · Sunday: Please ask.

Send it by post

Free two-way shipping with our contracted carrier from anywhere in Turkey. Send the device without its case, in a well-protected box, with a note giving your phone number and the fault.

Motorbike courier

Within Istanbul you can send your device by motorbike courier; just send us your address and the fault on WhatsApp.

FAQ

Frequently asked questions

01

What is the main flex on a Samsung?

The cable linking the main board to the sub-board; part of the screen, charging and sound signals pass through it.

02

How do I know the flex is faulty?

If the picture or touch comes and goes, or it works when pressed, the flex or connection may be faulty.

03

Should the flex or the screen be replaced?

With a main flex fault, only the flex; if the screen’s own flex fails, the screen is usually replaced.

04

Will a flex replacement delete my data?

Data is usually preserved during a repair; still, you need to back up your data before the repair starts (backups are the customer’s responsibility).

Customer reviews

What our customers say

★★★★★

They replaced the screen of my iPhone 17 Pro Max with an original one within an hour. Emir and Kerem looked after me very well. An amazing business.

Ali E.Customer review · Translated from Turkish
★★★★★

I had the screen and battery of my 14 Pro Max replaced and I am very pleased. Thanks for your work.

Oğuzhan O.Customer review · Translated from Turkish
★★★★★

I think you will be pleased with their approach, their helpfulness and their care.

Our customerCustomer review · Translated from Turkish
★★★★★

This is the place I have shopped at with endless trust and sincerity for 20 years, since the Cep Market days. I am so glad you are here; Teknoway is the only place for me.

Cavidan T.Customer review · Translated from Turkish
★★★★★

A very good business with friendly staff, and they answered every question I had in full. Thank you, Teknoway.

ParlakplaystationCustomer review · Translated from Turkish
★★★★★

A company I have known for a long time that helps in every way it can. I definitely recommend dropping by and at least listening to their ideas and advice.

Murat Y.Customer review · Translated from Turkish
★★★★★

We had a screen protector fitted, and they gave us gifts I think were worth more than the screen protector. Most of all, thank you for the friendly welcome.

Mehmed P.Customer review · Translated from Turkish
★★★★★

Can looked after me very well and fixed the phone flawlessly. Thank you. When the repair was done, I realised I had left my phone with real experts.

Mustafa Ö.Customer review · Translated from Turkish

From our customers’ reviews. All reviews

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Is your Samsung screen cutting in and out?

Screen faults are diagnosed free of charge. Send us the model on WhatsApp.

+90 537 958 02 02