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Blog1 min read

Wavy lines on a phone screen: causes and fix

Wavy lines on a screen usually mean the panel was damaged by pressure or a knock, or the screen connection has loosened. Take a screenshot first: if the waves are not in it, the screen hardware is the problem. If it only happens while charging or at low brightness, change the charger and the brightness and test again.

Cep Market Repair TeamIn Kadıköy since 2006
Key points
  • Waves usually mean panel damage or a loose connection.
  • If a screenshot shows no waves, the problem is hardware.
  • If it only happens while charging, try another charger.
  • Waves seen when filming another screen with a camera are not a fault.
  • Back up your data before the repair.

01Step-by-step checks

  1. Screenshot. If the waves show in it, it is software; if not, it is the screen.
  2. Unplug it. Try another charger, or without charging.
  3. Brightness. Raise and lower it; check whether it gets worse at low brightness.
  4. Restart. Install any update.

02Likely cause by symptom

SymptomLikely cause
Waves change when pressedPanel damage or connection
Only while chargingCharger interference
Flicker at low brightnessPanel or brightness setting
Started after a dropPanel or flex
iPhone 11 and 11 Pro Max screen replacement

See also phone screen flickering fix and phone screen flex cable repair.

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

Why does a phone screen show waves?

Usually panel damage or a loose connection; charger interference and low brightness can also play a part.

02

Can software cause wavy lines?

Rarely. If a screenshot shows no waves, the screen hardware is the problem.

03

I see waves when filming a screen with a camera; is that a fault?

No. It comes from two screens filming each other; your screen is fine.

04

Will a screen 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 screen showing waves?

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

+90 537 958 02 02