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Blog1 min read

iPhone screen dimming: causes and fixes

An iPhone screen dimming is usually caused by a setting: Auto-Brightness, “Reduce White Point” or brightness lowering when the phone gets hot. If the settings are fine and the screen is still dark at full brightness, the screen or ambient light sensor should be checked.

Cep Market Repair TeamIn Kadıköy since 2006
Key points
  • Dimming is usually caused by a setting such as Auto-Brightness.
  • With “Reduce White Point” on, the screen looks dim even at full brightness.
  • An iPhone lowers brightness by itself when it gets hot.
  • The screen going dark during calls is the proximity sensor doing its job.
  • If it is dark at full brightness, the screen or a sensor may be faulty.

01Check the settings first

  1. Brightness. Turn brightness all the way up in Control Centre.
  2. Auto-Brightness. Turn it off in Settings › Accessibility › Display & Text Size and test.
  3. Reduce White Point. Turn it off in the same menu if it is on.
  4. Zoom filter. If Accessibility › Zoom is on, check its filter.
  5. Heat. If the phone is hot, let it cool; brightness comes back by itself.

Menu names vary by iOS version.

02Likely cause by symptom

SymptomLikely cause
Dark only during callsProximity sensor (normal)
Dims when hotHeat protection lowering brightness
Dark even at full brightnessScreen or a setting
Dims and brightens randomlyAmbient light sensor or screen
iPhone screen went black: repair

See also phone screen dark at full brightness and screen goes black during calls.

Brand › Model › Repair listChoose your model, ask about the faultiPhone 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 an iPhone screen dim by itself?

Usually Auto-Brightness, “Reduce White Point” or heat lowers the brightness. If the settings are fine, the screen should be checked.

02

Is the screen going dark during calls a fault?

No. The proximity sensor turns the screen off when the phone is near your ear; this is normal.

03

What if the screen is dark even at full brightness?

First check “Reduce White Point” and the Zoom filter. If it continues, the screen is checked at diagnosis.

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

★★★★★

Today we had an original battery replacement on our iPhone 14 Pro done by Can, and we thank him very much for his kindness, his speed and his professional support. You can come with no question marks in your mind. I recommend it 👍

Özgür Can K.Customer review · Translated from Turkish
★★★★★

They replaced the battery of an iPhone 11 in 20 minutes and handed the device back.

Selçuk S.Customer review · Translated from Turkish
★★★★★

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
★★★★★

Thank you, I had my device repaired: front glass replacement on a 17 Pro Max within an hour.

AhkCustomer review · Translated from Turkish
★★★★★

My brother Kerem welcomed us wonderfully; he truly knows the whole workshop by heart. Can, my doctor, left his mark on an iPhone that nobody else could fix. Thank you.

Saidovski M.Customer review · Translated from Turkish
★★★★★

I had the front glass of a 14 Pro Max replaced and I am pleased. Well done.

Alp Tunahan T.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

From our customers’ reviews. All reviews

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Is your iPhone screen dimming?

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

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